Mesophyll conductance: a third player in the photosynthesis game
|
|
- Sheryl Hunter
- 6 years ago
- Views:
Transcription
1 Mesophyll conductance: a third player in the photosynthesis game Jaume Flexas The China - EU Workshop on Phenotypic Profiling and Technology Transfer on Crop Breeding, Barcelona
2 Photosynthesis traditionally viewed as a sugar factory with only TWO limiting steps: CO2 supply (STOMATA) Demand function Supply function Photosynthetic machinery functioning SUGAR
3 Photosynthesis as a diffusion process A = gs (Ca Ci) = gm (Ci Cc) Traditionally considered LARGE and CONSTANT But: IT IS NOT SO LARGE...
4 But CO2 is used in photosynthesis INSIDE chloroplasts There is long way accross!!!! CO2 enters leaves through stomata
5
6
7
8
9
10 SUB-STOMATAL CAVITY: Where CO2 initially ARRIVES CHLOROPLASTS: Where photosynthesis OCCURS How to REACH photosynthetic sites?
11 The CO2 path A Ca gb B Cs GAS PHASE gs gias gw LIPIDLIQUID PHASE gliq Cc Ci Ci s gm cw Cc st pm ce pg 50 mm 0.2 mm Flexas et al Plant Cell Environ. 31,
12 Evans et al. (2009) J. Exp. Bot. 60,
13 0,5 0,4 a ab 0,3 A A abc A A bc 0,2 A c c A 0,1 d Se H er m i-d bs ec id uo us D ec id uo us Ev er gr ee Li n ve C rw on or ife ts rs /H or nw or ts se s 0,0 G ra s gs or gm (mol CO2 m-2 s-1) Stomatal conductance Mesophyll conductance Group Flexas et al Plant Science 196, 70-84
14 CO2 assimilation Restricted gm = photosynthetsis inefficiency [CO2] (proxy Ci)
15 STRUCTURAL CANDIDATES FOR SETTING gm RESISTANCES ALONG THE LIQUID PHASE Evans et al. (2009) J. Exp. Bot. 60,
16 Tomàs et al. (submitted)
17 However gm is only partly dependend of leaf anatomy gm (mol CO2 m s bar ) ? LMA (g m ) Flexas et al Plant Cell Environ. 31,
18 ... AND IT IS NOT SO CONSTANT! - Salinity (Bongi & Loreto 1989 Plant Physiol. 90, ) - Leaf ontogeny (Loreto et al Photosynth. Res. 41, ) - Altitude (Kogami et al Plant Cell Environ. 24, ) - Shade (Hanba et al Plant Cell Environ. 25, ) - Drought (Flexas et al Funct. Plant Biol. 29, ) - Temperature (Bernacchi et al Plant Physiol. 130, ) - CO2 (Singsaas et al Plant Cell Environ. 27, 41-50) - O3 (Eichelmann et al Plant Cell Environ. 27, )
19 High CO2 applied Ambient CO2 restored gm (mol CO2 m s ) -2-1 gs (mol CO2 m s ) B 6000 Time (seconds) Flexas et al. (2007) Plant Cell Environ. 30,
20 METABOLIC CANDIDATES FOR RAPID CHANGES IN gm - Carbonic anhydrase (Gillon and Yakir 2000 Plant Physiol. 123, ) - Aquaporins (Flexas et al Plant J. 48, ) - Others (Flexas et al Plant Cell Environ. In press)
21 AQUAPORINS NtAQP1 transformed plants Anti-sense (AS) Control Antisense (CAS) Over-express (O) Control Overexpress (CO)
22 NtAQP1 affects mesophyll conductance to CO2 GENOTYPE gm (mol CO2 m-2 s-1 bar-1) AS a CAS b CO c O d Flexas et al. (2006) Plant J. 48,
23 Aquaporing activity (GATING) under water stress Miyazawa et al Funct. Plant Biol. 35,
24 OVERALL: gm limits photosynthesis as much as stomata and more than biochemistry Species Factor Total photosynthesis limitation (%) SL (%) MCL (%) BL (%) Reference Arabidopsis thaliana Senescent leaves Flexas et al Beta maritima Severe water stress Galmés et al Lavatera maritima Severe water stress Galmés et al Phlomis italica Severe water stress Galmés et al Vitis berlandieri x rupestris Moderate water stress Flexas et al Vitis berlandieri x rupestris Severe water stress Flexas et al Nicotiana sylvestris Rewatering High Light Gallé et al Nicotiana sylvestris Rewatering Mid Light Gallé et al Nicotiana sylvestris Rewatering Low Light Gallé et al Olea europaea Water stress High VPD Pérez-Martín et al Olea europaea Water stress Low VPD Pérez-Martín et al Rhamnus ludovici-salvatoris Shade leaves Mattos et al. unpub. Beta vulgaris Excess Zinc (300 µm) Sagardoy et al. submit. AVERAGE STRESS
25 gm to improve photosynthesis and yield
26 gm to improve photosynthesis and yield
27 gm to improve photosynthesis and yield Barbour et al Plant Cell Environ 33,
28 gm to improve photosynthesis and yield Low gs & High gm High gs & gm Low gs & gm Barbour et al Plant Cell Environ 33,
29 GLOBAL ANALYSIS SHOWS HOW TO IMPROVE WATER USE EFFICIENCY AN / gs ( mol CO2 mol-1) gm / gs (mol CO2 mol ) Flexas et al., unpublished 5
30 Take-home messages Mesophyll conductance (gm) is as FINITE and RAPIDLY VARIABLE as stomatal conductance gm is a really important LIMITATION to photosynthesis having a GENETIC BASIS (structural + metabolic) Hence improving gm is a TARGET to genetically improve photosynthesis In addition, it is a perfect target to improve WUE as well, specially under drought-prone conditions
Phenotyping for Photosynthetic Traits
Phenotyping for Photosynthetic Traits Elizabete Carmo-Silva Michael E Salvucci Martin AJ Parry OPTICHINA 2nd Workshop, Barcelona, September 212 Why Photosynthesis? Photosynthetic assimilation of carbon
More informationRapid variations of mesophyll conductance in response to changes in CO 2 concentration around leaves
Plant, Cell and Environment (2007) 30, 1284 1298 doi: 10.1111/j.1365-304007.01700.x Rapid variations of mesophyll conductance in response to changes in CO 2 concentration around leaves JAUME FLEXAS 1,
More informationWater use efficiency in agriculture
Water use efficiency in agriculture Bill Davies The Lancaster Environment Centre, UK Summary Introduction and definitions Impacts of stomata, environment and leaf metabolism on WUE Estimating WUE and modifications
More informationStress responses of terrestrial vegetation and their manifestation in fluorescence and GPP Jaume Flexas
Stress responses of terrestrial vegetation and their manifestation in fluorescence and GPP Jaume Flexas New Methods to Measure Photosynthesis from Space Workshop August,26-31, 2012 Stress responses of
More informationBasic stoichiometric equation on photosynthesis and the production of sugar and oxygen via the consumption of CO2, water, and light
1 2 Basic stoichiometric equation on photosynthesis and the production of sugar and oxygen via the consumption of CO2, water, and light 3 Several pathways exist for fixing CO2 into sugar 4 Photosynthesis
More informationInteractive effects of soil water deficit and air vapour pressure deficit on mesophyll conductance to CO 2 in Vitis vinifera and Olea europaea
Journal of Experimental Botany, Vol. 60, No. 8, pp. 2391 2405, 2009 doi:10.1093/jxb/erp145 RESEARCH PAPER Interactive effects of soil water deficit and air vapour pressure deficit on mesophyll conductance
More informationWater Relations in Viticulture BRIANNA HOGE AND JIM KAMAS
Water Relations in Viticulture BRIANNA HOGE AND JIM KAMAS Overview Introduction Important Concepts for Understanding water Movement through Vines Osmosis Water Potential Cell Expansion and the Acid Growth
More informationReferences. 1 Introduction
1 Introduction 3 tion, conservation of soil water may result in greater soil evaporation, especially if the top soil layers remain wetter, and the full benefit of sustained plant physiological activity
More information5/08/ :49 PM 28/02/13. Lecture 2: Photosynthesis:
5/08/2014 10:49 PM 28/02/13 Lecture 2: Photosynthesis: Two types of chlorophyll in plants (green pigments in the thylakoids that are responsible for the absorption of Photosynthetically active radiation
More informationBreeding for Drought Resistance in Cacao Paul Hadley
Breeding for Drought Resistance in Cacao Paul Hadley University of Reading Second American Cocoa Breeders Meeting, El Salvador, 9-11 September 215 9 September 215 University of Reading 26 www.reading.ac.uk
More informationDiffusional conductances to CO 2 as a target for increasing photosynthesis and photosynthetic water-use efficiency
Photosynth Res (213) 117:45 59 DOI 1.17/s1112-13-9844-z REVIEW Diffusional conductances to CO 2 as a target for increasing photosynthesis and photosynthetic water-use efficiency Jaume Flexas Ülo Niinemets
More informationEffects of Internal Conductance on the Temperature Dependence of the Photosynthetic Rate in Spinach Leaves from Contrasting Growth Temperatures
Plant Cell Physiol. 47(8): 169 18 (26) doi:1.193/pcp/pcj77, available online at www.pcp.oxfordjournals.org ß The Author 26. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists.
More informationEffects of rising temperatures and [CO 2 ] on physiology of tropical forests
Effects of rising temperatures and [CO 2 ] on physiology of tropical forests We are happy to advise that reports of our impending demise may have been very much exaggerated Jon Lloyd and Graham Farquhar
More informationCarbon Input to Ecosystems
Objectives Carbon Input Leaves Photosynthetic pathways Canopies (i.e., ecosystems) Controls over carbon input Leaves Canopies (i.e., ecosystems) Terminology Photosynthesis vs. net photosynthesis vs. gross
More informationImpact of genetic variation in stomatal conductance on water use efficiency in Quercus robur. Oliver Brendel. INRA Nancy France
Impact of genetic variation in stomatal conductance on water use efficiency in Quercus robur Oliver Brendel INRA Nancy France Unit of Forest Ecology and Ecophysiology In collaboration with INRA Pierroton
More informationPOTASSIUM IN PLANT GROWTH AND YIELD. by Ismail Cakmak Sabanci University Istanbul, Turkey
POTASSIUM IN PLANT GROWTH AND YIELD by Ismail Cakmak Sabanci University Istanbul, Turkey Low K High K High K Low K Low K High K Low K High K Control K Deficiency Cakmak et al., 1994, J. Experimental Bot.
More informationRelationship between Leaf Water Potential and Photosynthesis in Rice Plants
Relationship between Leaf Water Potential and Photosynthesis in Rice Plants By KUNI ISHIHARA and HIDEO SAITO Faculty of Agriculture, Tokyo University of Agriculture and Technology (Saiwaicho,Fuchu, Tokyo,
More informationEnvironmental Plant Physiology Photosynthesis - Aging. Department of Plant and Soil Sciences
Environmental Plant Physiology Photosynthesis - Aging krreddy@ra.msstate.edu Department of Plant and Soil Sciences Photosynthesis and Environment Leaf and Canopy Aging Goals and Learning Objectives: To
More informationPhotosynthesis - Aging Leaf Level. Environmental Plant Physiology Photosynthesis - Aging. Department of Plant and Soil Sciences
Environmental Plant Physiology Photosynthesis and Environment Leaf and Canopy Aging krreddy@ra.msstate.edu Department of Plant and Soil Sciences Goals and Learning Objectives: To understand the effects
More informationThe photosynthetic response of tobacco plants overexpressing ice plant aquaporin McMIPB to a soil water deficit and high vapor pressure deficit
J Plant Res (2013) 126:517 527 DOI 10.1007/s10265-013-0548-4 REGULAR PAPER The photosynthetic response of tobacco plants overexpressing ice plant aquaporin McMIPB to a soil water deficit and high vapor
More informationGroup of Irrigation and Crop Ecophysiology, Instituto de Recursos Naturales y Agrobiología, IRNAS-CSIC, Apartado 1052, 41080, Sevilla, Spain 2
Journal of Experimental Botany, Vol. 65, No. 12, pp. 3143 3156, 2014 doi:10.1093/jxb/eru160 Advance Access publication 5 May, 2014 This paper is available online free of all access charges (see http://jxb.oxfordjournals.org/open_access.html
More informationResistances along the CO 2 diffusion pathway inside leaves
Journal of Experimental Botany, Vol. 60, No. 8, pp. 2235 2248, 2009 doi:10.1093/jxb/erp117 Advance Access publication 23 April, 2009 REVIEW PAPER Resistances along the CO 2 diffusion pathway inside leaves
More informationTobacco aquaporin NtAQP1 is involved in mesophyll conductance to CO 2 in vivo
The Plant Journal (2006) 48, 427 439 doi: 10.1111/j.1365-313X.2006.02879.x Tobacco aquaporin NtAQP1 is involved in mesophyll conductance to CO 2 in vivo Jaume Flexas 1,*,, Miquel Ribas-Carbó 1,, David
More informationJ. Bota IRFAP, Conselleria de presidència. Balearic Government. Eusebio Estada nº Palma de Mallorca. Spain
Genetic variation of plant water status, water use efficiency and grape yield and quality in response to soil water availability in grapevine (Vitis vinifera L.) J.M. Escalona, M. Tomás H. Medrano Research
More informationChanges in Plant Metabolism Induced by Climate Change
Changes in Plant Metabolism Induced by Climate Change Lisa Ainsworth USDA ARS Global Change and Photosynthesis Research Unit Department of Plant Biology, Univ of Illinois, Urbana-Champaign ainswort@illinois.edu
More information! E EUKARYOTE CYTOLOGY INTERCELLULAR SPACE MIDDLE LAMELLA PEROXISOME PLASMODESMATA VACUOLE CYTOSOL CELL WALL GOLGI BODY MIDDLE LAMELLA NUCLEUS
EUKARYOTE CYTOLOGY INTERCELLULAR SPACE! E PEROXISOME VACUOLE CELL WALL MIDDLE LAMELLA CHLOROPLAST CYTOPLASMIC STRAND CYTOSOL CELL MEMBRANE MIDDLE LAMELLA PLASMODESMATA CYTOSOL GOLGI BODY NUCLEUS MITOCHONDRION
More informationPhotosynthetic limitations in response to water stress. and recovery in Mediterranean plants with different growth forms
Research Photosynthetic limitations in response to water stress Blackwell Publishing Ltd and recovery in Mediterranean plants with different growth forms Jeroni Galmés, Hipólito Medrano and Jaume Flexas
More informationHormonal and other chemical effects on plant growth and functioning. Bill Davies Lancaster Environment Centre, UK
Hormonal and other chemical effects on plant growth and functioning Bill Davies Lancaster Environment Centre, UK Integrating the impacts of soil drought and atmospheric stress High radiant load Reduced
More informationAnatomical basis of variation in mesophyll resistance in eastern Australian sclerophylls: news of a long and winding path
Journal of Experimental Botany, Vol. 63, No. 14, pp. 5105 5119, 2012 doi:10.1093/jxb/ers171 Advance Access publication 9 August, 2012 This paper is available online free of all access charges (see http://jxb.oxfordjournals.org/open_access.html
More informationReceived: October Accepted: November. Abstract
Using an Infrared Gas Analyzer for Evaluation of Photosynthetic Activity in Some Iranian Pistachio Cultivars H. R. Roosta*, A.R. Sajjadinia. Department of Horticultural Sciences, Vali-e-Asr University
More informationCarbon Cycle, part 2 Ecophysiology of Leaves. ESPM 111 Ecosystem Ecology. Outline
Carbon Cycle, part 2 Ecophysiology of Leaves Dennis Baldocchi ESPM UC Berkeley Courtesy of Rob Jackson, Duke 3/13/2013 Outline Photosynthetic Pathways and Cycles Environmental Physiology of Photosynthesis
More informationHow drought stress and CO2 concentration influence stomatal conductance and photosynthesis? Abstract. Introduction
How drought stress and CO2 concentration influence stomatal conductance and photosynthesis? Simon Keck 1, Julian Müller 1, Dominik Guttschick 1, Kaisa Pajusalu 2, Elodie Quer 3, Maria Majekova 4 1 University
More informationTerrestrial land surfacesa pot pourri
CALTECH JPL Center for Climate Sciences March 26, 2018 Terrestrial land surfacesa pot pourri Graham Farquhar Australian National University What do we want from our models? Timescale is a key issue What
More informationInteractions between ozone and drought stress in plants: mechanisms and implications. Sally Wilkinson and William J. Davies, Lancaster University
Interactions between ozone and drought stress in plants: mechanisms and implications Sally Wilkinson and William J. Davies, Lancaster University STOMATA: At the leaf surface water is lost to the atmosphere
More informationCommon Effects of Abiotic Stress Factors on Plants
Common Effects of Abiotic Stress Factors on Plants Plants are living organisms which lack ability of locomotion. Animals can move easily from one location to other. Immovable property of plants makes it
More informationPhotosynthetic Response of an Alpine Plant, Rhododendron delavayi Franch, to Water Stress and Recovery: The Role of Mesophyll Conductance
ORIGINAL RESEARCH published: 08 December 2015 doi: 10.3389/fpls.2015.01089 Photosynthetic Response of an Alpine Plant, Rhododendron delavayi Franch, to Water Stress and Recovery: The Role of Mesophyll
More informationMlchio KANECHI, Naotsugu UCHIDA, Takeshl YASUDA and Tadashi YAMAGUCHI Graduate School of Science and Technology, Kobe University, Rokko, Kobe 657
Japan. J. Trop. Agr. 32 (1) : 16-21, 1988 Relationships between Leaf Water Potential and Photosynthesis of Coffea arabica L. Grown under Various Environmental Conditions as Affected by Withholding Irrigation
More informationPotential of (portable) NMR and MRI for plant phenotyping. Henk Van As
Potential of (portable) NMR and MRI for plant phenotyping Henk Van As NMR/MRI and plant phenotyping Non-invasive NMR and MRI sensors to measure plant performance and uncover genetic determinants of enhanced
More informationDIURNAL CHANGES IN LEAF PHOTOSYNTHESIS AND RELATIVE WATER CONTENT OF GRAPEVINE
DIURNAL CHANGES IN LEAF PHOTOSYNTHESIS AND RELATIVE WATER CONTENT OF GRAPEVINE Monica Popescu*, Gheorghe Cristian Popescu** *University of Pitesti, Faculty of Sciences, Department of Natural Sciences,
More informationEffect of 28-homobrassinolide on the nitrate reductase, carbonic anhydrase activities and net photosynthetic rate in Vigna radiata
Acta Bot. Croat. 65 (1), 19 23, 2006 CODEN: ABCRA25 ISSN 0365 0588 Effect of 28-homobrassinolide on the nitrate reductase, carbonic anhydrase activities and net photosynthetic rate in Vigna radiata QAZI
More informationDAY 1 Leaf Structure
DAY 1 Leaf Structure Design a Leaf!! What would be the best structure for a leaf to carry out its major function PHOTOSYNTHESIS!!!??? Place the following in order from the top of the leaf to the bottom.
More informationThe Role of Inorganic Carbon Transport and Accumulation in the CO 2 -Concentrating Mechanism and CO 2 Assimilation in Chlamydomonas
The Role of Inorganic Carbon Transport and Accumulation in the CO 2 -Concentrating Mechanism and CO 2 Assimilation in Chlamydomonas Is there a Role for the CCM in Increasing Biological CO 2 Capture? Generalized
More informationUnderstanding how vines deal with heat and water deficit
Understanding how vines deal with heat and water deficit Everard Edwards CSIRO AGRICULTURE & FOOD How hot is too hot? Cell death will occur in any vine tissue beyond a threshold (lethal) temperature cell
More informationSalinity effects on the stomatal behaviour of grapevine
New Phytol. (1990), 116, 499-503 Salinity effects on the stomatal behaviour of grapevine BY W. J. S. DOWNTON, B. R. LOVEYS AND W. J. R. GRANT CSIRO Division of Horticulture, GPO Box 350, Adelaide, 5001,
More informationOxygen and Hydrogen in Plants
Oxygen and Hydrogen in Plants Outline: Environmental factors Fractionation associated with uptake of water Metabolic Fractionation C3, CAM and C4 plants Environmental factors Regional Precipitation d 18
More informationCHAPTER 8 PHOTOSYNTHESIS
CHAPTER 8 PHOTOSYNTHESIS Con. 8.1 Photosynthesis process by which plants use light to make food molecules from carbon dioxide and water (chlorophyll) 6CO 2 + 12H 2 O + Light C 6 H 12 O 6 + 6O 2 + 6H 2
More informationAvocado Tree Physiology Understanding the Basis of Productivity
Avocado Tree Physiology Understanding the Basis of Productivity R. L. Heath, M. L. Arpaia UC, Riverside M. V. Mickelbart Purdue University Raw Materials Labor Product Light Carbon Dioxide Temperature Water
More informationChapter 5: Photosynthesis: The Energy of Life pg : Alternative Mechanisms of Carbon Fixation pg
UNIT 2: Metabolic Processes Chapter 5: Photosynthesis: The Energy of Life pg. 210-240 5.4: Alternative Mechanisms of Carbon Fixation pg. 231 234 Photosynthesis requires reactants; CO 2 and H 2 O, to produce
More informationTranslocation 11/30/2010. Translocation is the transport of products of photosynthesis, mainly sugars, from mature leaves to areas of growth and
Translocation Translocation is the transport of products of photosynthesis, mainly sugars, from mature leaves to areas of growth and storage. Phloem is the tissue through which translocation occurs. Sieve
More informationWelcome to the Iowa Certified Nursery Professional Training program Module 2: How Plants Work: Plant Growth and Development.
Welcome to the Iowa Certified Nursery Professional Training program Module 2: How Plants Work: Plant Growth and Development. 1 Upon completion of this module, you will be able to fulfill each of the objectives
More informationResponses of leaf stomatal density and anatomy to water deficit in four winegrape cultivars (Vitis vinifera L.)
Responses of leaf stomatal density and anatomy to water deficit in four winegrape cultivars (Vitis vinifera L.) Theodorou N., Koundouras S., Zioziou E., Nikolaou N. Laboratory of Viticulture, School of
More informationDAY 1 Photosynthesis. - Chemical reaction - Compared to respiration
DAY 1 Photosynthesis - Chemical reaction - Compared to respiration Photosynthesis Photosynthesis Song Brainpop Photosynthesis The Sun is the ultimate source of mostly all energy on Earth! Autotrophs: are
More informationPhotosynthesis: Using Light to Make Food
Chapter 7 Photosynthesis: Using Light to Make Food BIOL 1408 Dr. Chris Doumen Introduction Understanding of the finer details of Photosynthesis is globally important. Fossil fuels come from plants and
More informationAgricultural Water Management
Agricultural Water Management 96 (2009) 1201 1206 Contents lists available at ScienceDirect Agricultural Water Management journal homepage: www.elsevier.com/locate/agwat Shade effect on photosynthesis
More informationPHOTOSYNTHESIS: THE LIGHT REACTIONS
PHOTOSYNTHESIS: THE LIGHT REACTIONS ECOSYSTEM Photosynthesis CO 2 +H 2 O Organic + O molecules 2 Cellular respiration in mitochondria 1 PHOTOAUTOTROPHS The producers of the biosphere AUTOTROPH means self
More informationTopic Covered. Name of the College/Institute: S K N College of Agriculture (SKNAU) Jobner
Title of the Course & Course Number: Principles of Plant Physiology (PPHYS-5) Month: Aug,06-7 Stomata structure and function.8.06 Mechanism of stomatal movement 3.8.06 3 Antitranspirants. 5.8.06 4 Physiology
More informationH 2 O CO 2. A Fundamental Resource Tradeoff negotiated by Stomata. Outline. 1. Importance of stomata for water relations
A Fundamental Resource Tradeoff negotiated by Stomata H 2 O Outline 1. Importance of stomata for water relations 2. Physical description of Stomata, and mechanical drivers for opening and closing CO 2
More informationPrimary Producer Carbon Isotopes
Primary Producer Carbon Isotopes The Beginnings Craig 1953 Isotope Fractionations: A Review EQUILIBRIUM KINETIC A k 1 B A k 12C B k 2 k 13C Fractionation Factor: k 1 /k 2 Mass-Dependent k 12C > k 13C Rates
More information" " " " " " " " " " " " " " " " " " " " " The Effect of Sunlight on the Rate of Photosynthesis in Trachelospermum Jasmenoides" Nika Vafadari "
The Effect of Sunlight on the Rate of Photosynthesis in Trachelospermum Jasmenoides Nika Vafadari Biology Lab 111 Section 05 1 2 Introduction Different types of plant species, such as CAM plants, have
More informationThe Solute Accumulation: The Mechanism for Drought Tolerance in RD23 Rice (Oryza sativa L) Lines
R ESEARCH ARTICLE ScienceAsia 27 (2001) : 93-97 The Solute Accumulation: The Mechanism for Drought Tolerance in RD23 Rice (Oryza sativa L) Lines Montakan Vajrabhaya, Warunya Kumpun and Supachitra Chadchawan*
More informationPhotosynthesis under drought and salt stress: regulation mechanisms from whole plant to cell
Annals of Botany 103: 551 560, 2009 doi:10.1093/aob/mcn125, available online at www.aob.oxfordjournals.org REVIEW Photosynthesis under drought and salt stress: regulation mechanisms from whole plant to
More informationComparison of physiological responses of pearl millet and sorghum to water stress
Proc. Indian Acad. Sci. (Plant Sci.), Vol. 99, No. 6, December 1989, pp. 517-522. (~ Printed in India. Comparison of physiological responses of pearl millet and sorghum to water stress V BALA SUBRAMANIAN
More informationDrought Tolerant Criterion of Wheat Genotypes Using Carbon Isotopes Discrimination Technique
Journal of Earth Science and Engineering 5 (2015) 256-261 doi: 10.17265/2159-581X/2015. 01. 005 D DAVID PUBLISHING Drought Tolerant Criterion of Wheat Genotypes Using Carbon Isotopes Discrimination Technique
More informationChapter 10 Photosynthesis
Chapter 10 Photosynthesis Photosynthesis Process by which plants use light energy to make food. A reduction process that makes complex organic molecules from simple molecules. Ps General Equation 6 CO
More informationPhotosynthesis. 1. What raw materials are used by producers for photosynthesis?
Photosynthesis Recall that producers are found at the base of every food chain and are the foundation of ecosystems. This is due to their ability to capture light energy to produce their own food in the
More informationVOCABULARY COMPTETENCIES. Students, after mastering the materials of Plant Physiology course, should be able to:
1 VOCABULARY Forget not, exam includes ENGLISH WORDS 1. Involve 2. Bundle 3. Sheath 4. Subsequent 5. Ambient 6. Stick together 7. Determine 8. Evolution 9. Thrive 10. Allow COMPTETENCIES Students, after
More informationTissues and organs PART 2
Tissues and organs PART 2 The structure and function of the mesophytic leaf (a plant organ) The mesopyhtic leaf (lives in a moderately moist environment) contains 7 layers of tissue: 1. Upper epidermis
More informationPlant Gene and Trait, 2013, Vol.4, No.8,
Research Report Open Access Effect of Water Stress on Leaf Temperature, Transpiration Rate, Stomatal Diffusive Resistance and Yield of Banana K. Krishna Surendar 1, D. Durga Devi 1, I. Ravi 2, P. Jeyakumar
More informationA. Structures of PS. Site of PS in plants: mostly in leaves in chloroplasts. Leaf cross section. Vein. Mesophyll CO 2 O 2. Stomata
PS Lecture Outline I. Introduction A. Structures B. Net Reaction II. Overview of PS A. Rxns in the chloroplast B. pigments III. Closer looks A. LD Rxns B. LI Rxns 1. non-cyclic e- flow 2. cyclic e- flow
More informationLeaf anatomy and photosynthesis:
Leaf anatomy and photosynthesis: Unravelling the CO 2 diffusion pathway in C 3 leaves Herman Nicolaas Cornelis Berghuijs Thesis committee Promotors Prof. Dr P.C. Struik Professor of Crop Physiology Wageningen
More informationLI-COR LI-6400XT Training Course
LI-COR LI-6400XT Training Course Lingling Yuan and Shannon Loriaux, LI-COR Science and Support September 15-16, 2015 Beijing, China Tentative Agenda Day 1 Theory and hardware overview Preparation Checklists
More informationNa Zhao 1,3, Ping Meng 2, Yabing He 1, and Xinxiao Yu 1,3. People s Republic of China. Correspondence to: Xinxiao Yu
https://doi.org/10.5194/bg-14-3431-2017 Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License. Interaction of CO 2 concentrations and water stress in semiarid plants
More informationEFFECTS OF PHENYL-MERCURIC ACETATE ON, STOMATAL AND CUTICULAR RESISTANCE TO TRANSPIRATION
New PhytoL (1975) 75,47-52.. :: i vi EFFECTS OF PHENYL-MERCURIC ACETATE ON, STOMATAL AND CUTICULAR RESISTANCE TO TRANSPIRATION BY S. MORESHET Agricultural Research Organization, The Volcani Centre, Bet
More informationAnalysis of leakage in IRGA s leaf chambers of open gas exchange systems: quantification and its effects in photosynthesis parameterization
Journal of Experimental Botany, Vol. 58, No. 6, pp. 1533 1543, 2007 doi:10.1093/jxb/erm027 Advance Access publication 5 March, 2007 RESEARCH PAPER Analysis of leakage in IRGA s leaf chambers of open gas
More informationDynamic Plant. Adapted for Photosynthesis. Common Leaf Forms. An examination of leaves. Leaves are usually thin
Dynamic Plant An examination of leaves Common Leaf Forms Adapted for Photosynthesis DICOT blade petiole axillary bud node MONOCOT sheath node blade Leaves are usually thin High surface area-to-volume ratio
More information2018 Version. Photosynthesis Junior Science
2018 Version Photosynthesis Junior Science 1 Plants fill the role of Producers in a community Plants are special because they have leaves and are able to produce their own food by the process of photosynthesis
More informationEffect of Rust Disease on Photosynthetic Rate of Wheat Plant. Sevda Abdulbagiyeva, Atif Zamanov, Javanshir Talai and Tofig Allahverdiyev
Journal of Agricultural Science and Technology B 5 (2015) 486-490 doi: 10.17265/2161-6264/2015.07.006 D DAVID PUBLISHING Effect of Rust Disease on Photosynthetic Rate of Wheat Plant Sevda Abdulbagiyeva,
More informationPhotosynthetic and chlorophyll fluorescence regulation of upland cotton (Gossiypium hirsutum L.) under drought conditions
POJ 5(5):432-437 (2012) ISSN:1836-3644 Photosynthetic and chlorophyll fluorescence regulation of upland cotton (Gossiypium hirsutum L.) under drought conditions Dongxiao Li 1, 2, Cundong Li 1*, Hongchun
More informationFigure 1. Identification of UGT74E2 as an IBA glycosyltransferase. (A) Relative conversion rates of different plant hormones to their glucosylated
Figure 1. Identification of UGT74E2 as an IBA glycosyltransferase. (A) Relative conversion rates of different plant hormones to their glucosylated form by recombinant UGT74E2. The naturally occurring auxin
More informationIrradiance and phenotype: comparative eco-development of sun and shade leaves in relation to photosynthetic CO 2 diffusion
Journal of Experimental Botany, Vol. 57, No. 2, pp. 343 354, 2006 Phenotypic Plasticity and the Changing Environment Special Issue doi:10.1093/jxb/erj014 Advance Access publication 15 December, 2005 Irradiance
More informationEffects of Exogenous Melatonin on Photosynthetic Characteristics. of Eggplant Seedlings under Low Temperature and Weak Light Stress
International Conference on Manufacturing Science and Engineering (ICMSE 2015) Effects of Exogenous Melatonin on Photosynthetic Characteristics of Eggplant Seedlings under Low Temperature and Weak Light
More informationMesophyll conductance from measurements of C 18 OO photosynthetic discrimination and carbonic anhydrase activity
Plant Physiology Preview. Published on August 13, 2018, as DOI:10.1104/pp.17.01031 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Mesophyll conductance from measurements of C 18 OO photosynthetic discrimination
More informationStructural, physiological and metabolic integrated responses of two tomato (Solanum lycopersicum L.) cultivars during leaf rehydration
AJCS 5(6):695-701 (2011) ISSN:1835-2707 Structural, physiological and metabolic integrated responses of two tomato (Solanum lycopersicum L.) cultivars during leaf rehydration A.M. Calcagno 3, M. Rivas
More informationPhotosynthetic parameters of Mosla hangchowensis and M. dianthera as affected by soil moisture
PHOTOSYNTHETICA 42 (3): XXX-XXX, 2004 Photosynthetic parameters of Mosla hangchowensis and M. dianthera as affected by soil moisture Y. GE, Y.-J. LU, J.-X. LIAO, B.-H. GUAN, and J. CHANG * Zhejiang University,
More informationPhotosynthesis Under Drought and Salt Stress: Regulation Mechanisms from Whole Plant to Cell
Annals of Botany Page 1 of 10 doi:10.1093/aob/mcn125, available online at www.aob.oxfordjournals.org REVIEW Photosynthesis Under Drought and Salt Stress: Regulation Mechanisms from Whole Plant to Cell
More informationPlant Ecophysiology in a Restoration Context
Objectives: How can the foundations of and theory in plant ecophysiological restoration ecology ecological restoration? Light and energy relations Photosynthesis Microclimate Belowground resource availability
More informationLecture notes on stomatal conductance. Agron 516: Crop physiology. Dr. Mark Westgate.
Lecture notes on stomatal conductance. Agron 516: Crop physiology. Dr. Mark Westgate. Diurnal variation of stomatal conductance has direct consequences for leaf and canopy gas exchange Measure diurnal
More informationMorphology and photosynthetic enzyme activity of maize phosphoenolpyruvate carboxylase transgenic rice
Morphology and photosynthetic enzyme activity of maize phosphoenolpyruvate carboxylase transgenic rice W.C. Li 1, J. Wang 1, Y.L. Sun 1, S.D. Ji 1 and S.W. Guo 2 1 College of Life Sciences, Henan Normal
More informationCan increased leaf photosynthesis be converted into higher crop mass production? A simulation study for rice using the crop model GECROS
Journal of Experimental Botany, Vol. 68, No. 9 pp. 2345 2360, 2017 doi:10.1093/jxb/erx085 Advance Access publication 31 March 2017 This paper is available online free of all access charges (see http://jxb.oxfordjournals.org/open_access.html
More information2.2 Page 3 Gas exchange S. Preston 1
AS Unit BY2: Biodiversity and Physiology of Body Systems Name: Date: Topic 2.2 Adaptations for Gas Exchange Page 3 1. Read pages 2 and 3 Label the diagram showing the cross section of a leaf. Complete
More informationPlant Science 177 (2009) Contents lists available at ScienceDirect. Plant Science. journal homepage:
Plant Science 177 (2009) 88 96 Contents lists available at ScienceDirect Plant Science journal homepage: www.elsevier.com/locate/plantsci Photosynthesis of cotton near-isogenic lines introgressed with
More informationName Date Class. This section explains how plants make food by using the energy from sunlight.
Cell Processes and Energy Name Date Class Cell Processes and Energy Guided Reading and Study Photosynthesis This section explains how plants make food by using the energy from sunlight. Use Target Reading
More informationSap flow technique as a tool for irrigation schedule in grapevines: control of the plant physiological status
Sap flow technique as a tool for irrigation schedule in grapevines: control of the plant physiological status Pons P.J., Truyols M., Flexas J., Cifre J., Medrano H., Ribas-Carbó M. in López-Francos A.
More informationStomatal Movement in Response to Root Zone Temperature in Purple Heart (Tradescantia pallida)
Movement in Response to Root Zone Temperature in Purple Heart (Tradescantia pallida) Nabiyollah Ashrafi * and Abdolhossein Rezaei Nejad 2 Ph.D Student, Department of Horticultural Sciences, Faculty of
More informationSELECTION OF SOME SUITABLE DROUGHT TOLERANT WHEAT GENOTYPES USING CARBON ISOTOPES DISCRIMINATION (CID) TECHNIQUE
Pak. J. Bot., 42(5): 3639-3644, 2010. SELECTION OF SOME SUITABLE DROUGHT TOLERANT WHEAT GENOTYPES USING CARBON ISOTOPES DISCRIMINATION (CID) TECHNIQUE M.U. SHIRAZI 1, J.A. GYAMFI 2, T. RAM 3, H. BACHIRI
More informationOverexpression of the Barley Aquaporin HvPIP2;1 Increases Internal CO 2 Conductance and CO 2 Assimilation in the Leaves of Transgenic Rice Plants
Plant Cell Physiol. 45(5): 521 529 (2004) JSPP 2004 Rapid Paper Overexpression of the Barley Aquaporin HvPIP2;1 Increases Internal CO 2 Conductance and CO 2 Assimilation in the Leaves of Transgenic Rice
More informationIrrigation water salinity limits faba bean (Vicia faba L.) photosynthesis
5 th CASEE Conference Healthy Food Production and Environmental Preservation The Role of Agriculture, Forestry and Applied Biology Irrigation water salinity limits faba bean (Vicia faba L.) photosynthesis
More informationDoes Chloroplast Size Influence Photosynthetic Nitrogen Use Efficiency?
Does Chloroplast Size Influence Photosynthetic Nitrogen Use Efficiency? Yong Li 1,2, Binbin Ren 1, Lei Ding 1, Qirong Shen 1, Shaobing Peng 2, Shiwei Guo 1 * 1 College of Resources and Environmental Sciences,
More informationresponses of date palm plants to water availability
Emirates Journal of Food and Agriculture. 2016. 28(1): 58-65 doi: 10.9755/ejfa.2015.05.189 http://www.ejfa.me/ REGULAR ARTICLE Growth and photosynthetic responses of date palm plants to water availability
More information10 Identify the stroma. A A B B C C D D E E. 11 Identify a thylakoid. A A B B C C D D E E. 12 Where does the Calvin cycle occur? A A B B C C D D E E
Unit 4 Review 1 elow is an absorption spectrum for an unknown pigment molecule. What color would this pigment appear to you? red blue green violet yellow 2 In green plants, most of the TP for synthesis
More information