Biology 206 General Botany Fall 2011

Transcription

1 Biology 206 General Botany Fall 2011 "Botany I rank with the most valuable sciences, whether we consider its subjects as furnishing the principal subsistence of life to man and beast, delicious varieties for our tables, refreshments from our orchards, the adornments of our flower borders, shade and perfume of our groves, materials for our buildings, or medicaments for our bodies." -Thomas Jefferson Instructor information Dr. Ross A. McCauley Office: 447 Berndt Hall Office phone: mccauley_r@fortlewis.edu Webpage: Office hours: M, W, F 11:15 am-12:10 pm, R 9:05 am-12:10 pm and by appointment Course information Meeting time and place: Lecture MWF 10:10-11:05 a.m., 440 Berndt Hall; T 8:00-11:00 a.m., 440 Berndt Hall Required text: Nabors, M.W Introduction to Botany. Pearson/Benjamin Cummings: San Francisco, CA. Course Website: The course website contains all of the course lecture materials and copies of all labs and some assignments as well as updates to the schedule. I will also upload at the appropriate time review sheets for all exams approximately one week before the exam. Additionally you will find various resources and internet links for botany that I feel are interesting and relevant to our course content. A Unique Plants and a Botanical Questions blog associated with Moodle will be filled by all of you during the semester (see specific requirements below). Prerequisites: BIO 113 Course Description: In General Botany we will focus on understanding the structure, function, and diversity of plants. The first part of the course will focus on the functional connections among higher plant anatomy, morphology and physiology. The later part will constitute an evolutionary survey of the plant kingdom from its origins in the green algae and continuing through the bryophytes, ferns, gymnosperms and angiosperms, focusing on the diversity in each group and the comparisons of life history traits among them. Secondarily we will be working to expand your skills as a scientist, particularly those toward interpreting, writing and researching scientific material and your presentation and statistical analysis of original data. Objectives: 1. Be able to identify the unique cellular structures of plants. 2. Understand plant metabolism, particularly photosynthesis 3. Demonstrate an understanding of the relationship between plant tissues and plant growth. 4. Understand the diversity present within the plant kingdom and be able to discuss evolutionary trends among the various groups. 5. Understand the concept of alternation of generations and how this relates to evolution of major plant groups. 6. Understand life cycles and the concept of homology. 7. Gain an appreciation for the complexity, diversity, and functionality of plants. 8. Make connections between basic plant science and modern issues of invasive species, global change, biotechnology, biodiversity, etc.

2 Course Evaluation Grades will be determined through a mix of tests, assignments and a research lab report and will be distributed roughly as: Exams 75 pts. each) 375 pts. Quizzes 20 pts each) 80 Reports 75 pts each) 300 Other (Blogs, Presentation, Homework, Class Participation) 100 Total 855 Your grade will mostly be a sum of the earned points you have accrued throughout the semester with the following exceptions. I will drop the single lowest quiz score and replace that with the highest. Thus if you get a 40% on one quiz at anytime and a 100% on another quiz at some other time, the 40% will be replaced by a 100%. There will be no make-up quizzes. So if you miss a quiz you will receive a 0% which will then become your lowest quiz score. Make-up lecture exams may be scheduled within 5 days of the original exam date ONLY in the case of a legitimate absence. If you miss an exam for a legitimate reason and are unable to make up the exam within 5 days the score on the final exam will be substituted for the missed exam score. Legitimate absences will include any absence with a letter documenting that absence from the appropriate college official, be a documented medical excuse, or be a documented religious observance. If you miss for an illegitimate reason then you will receive a zero for that particular exam. Extra credit will be available on a limited basis and will be awarded for attendance at seminars sponsored by the Biology Department. I will announce any such opportunities at the appropriate time. Specific Requirements Lecture exams: We will have four in-class exams and a final. Exams will mostly include material covered since the last exam. That said it is quite possible that later exams will include some material from earlier sections as we build on more complex topics. All exams will be a mix of multiple choice, short answer, diagrams, and essay questions. The final will cover material from the last two weeks of class plus have a small comprehensive portion. Lecture quizzes: We will have four small quizzes during the term. These will serve to focus your attention on a subset of material which is rather technically dense. Research Papers in Botany: Throughout the semester we will read and discuss four original research or review articles in varying sub-disciplines of botany. We will dedicate a class period to discuss the research problem, the methodology used by the researchers, and the results and implications of those results. In many instances we will use the research to introduce some key concepts and areas of work in plant biology and illicit discussion about those topics. The articles will be available on Moodle prior to our discussion class and you will be expected to have fully read the article prior to the class meeting and be prepared to be called on to describe various aspects of the research. Topics from these papers will be included on exams. Moodle Blogs: Unique plant write up/presentation: You will each be assigned one unique plant which you have to research. You will be required to upload the findings of your research to the Unique Plants Blog in Moodle. Specifically you will need to say what makes this particular plant special. It may be a unique physiological mechanism, a reproductive mechanism, etc. To do this you will need to add a discussion topic for your individual plant. If someone disagrees or knows something else about your plant they will be able to comment on this topic. I ve provided an initial entry on one plant to show you the general level of detail required. Additionally you will need to prepare a short presentation (5 minutes) using PowerPoint to give to the class regarding your plant. This would ideally be a little more detailed than your blog entry. There will be two designated class periods for these presentations and your personal presentation time will be on a firstcome first-serve basis. Botanical questions: This second class blog will give you a forum to ask about anything related to botany and plants that you want. As a class we can all respond with answers or further insight to helping resolve the question. Ask appropriate questions. Off the wall is ok, there might be an answer for it. Let s please refrain however from asking advice for best marijuana grow lights. I

3 will be moderating this and providing some answers and/or insight if needed. Every student will be required to post at least once to this blog and more postings will be averaged into your class participation grade. Note however that regular blog posts will not be sufficient to replace missed exams or lab reports. Information: The lab in this course will serve to supplement and provide hands-on experience with botanical concepts or processes and organisms. These labs will vary from descriptive to experimental in nature. Some topics will only be covered in lab while others will be covered in both lecture and lab. For the descriptive labs you will be required to observe samples, make sketches, and/or answer questions regarding the activities which will be turned in at the end of lab. Other experimental labs will require your preparation of short laboratory reports. reports: You will be required to turn in four short written laboratory reports during the semester. These will be written in the traditional format of a scientific journal article including discrete sections for introduction, methods, results, discussion, and literature cited. These will be required for our labs on Phenotypic Plasticity, Hormone-induced parthenocarpy in Brassica rapa, Photosynthetic response of plants to varying levels of atmospheric CO 2 enrichment and the Phylogenetic Reconstruction of Plant Evolution. I will provide specific requirements for these write-ups later. Additional Study Resources: A companion website for our textbook is available at using the access key provided in the text. There will be additional internet study resources posted on Moodle. Other Course policies Academic Integrity: I expect all students to uphold the highest standards of academic honesty in all exams and assignments. Plagiarism in any form will not be accepted and will at the least result in the loss of credit for the assignment in question and may result in course failure and the filing of a formal report to the proper college authority. Remember, I know how to Google too - so no cut-and-paste from the internet. Proper citation is always required. Attendance: While I do not take a daily role, regular attendance is expected particularly if you want to do well. While I post much of our class material on Moodle not all lectures or activities are easily converted to a digital format. If you know you are going to miss class please let me know beforehand. If your absence results in your missing an exam, and is legitimate, the aforementioned policy stands. Classroom conduct: While I hope it goes without saying, please respect the rights of myself and your fellow classmates. If you are late try not to disturb everyone else. Additionally please leave mobile phones, pagers, ipods, etc, at home or turn them off and keep them stowed during class. I will not allow texting or checking of messages on any electronic device during class time. If this becomes a problem you will be asked to forfeit your device. Such activity is not only very disrespectful but also interferes with your ability to learn. Drops: The college deadline for dropping this class for it not to appear on your transcript is census date, 13 September. Without exceptional circumstances (ie. death in family, hospitalization, etc.) I will not assign a grade of W on a drop slip after this date unless you are currently passing the course with a C or better. Accommodations: Students with disabilities who require reasonable accommodations to fully participate in course activities or meet course requirements must register with the Disability Services Office. If you qualify for services through the Disability office, bring your letter of accommodations to me as soon as possible so I can make the appropriate arrangements. Letters are available through Dian Jenkins, Coordinator of Disability Services, 280 Noble Hall,

4 Tentative Lecture/ Schedule Wk Date Topics Reading Section I: Plant Structure: Anatomy, Morphology, Life Cycles 1 Aug. 29/31 Sept. 2 Lecture Introduction Plant Blindness What makes plant cells unique? Plant Cell Structure and Division Chap. 1, 2, 3 Plant cell types: Parenchyma, Collenchyma, Sclerenchyma Phenotypic plasticity in tree canopy leaves I: Field work and data collection 2 Sept. 5/7/9 Tissues and tissue systems: Ground, Dermal, and Vascular Plant organography & primary growth Research paper I: Bennett, A. E., M. Thomsen, and S.Y. Strauss Multiple mechanisms enable invasive species to suppress native species. American Journal of Botany 98: Phenotypic plasticity in tree canopy leaves II: Data analysis and graphing. 3 Sept. 12/14/16 Lecture Plant organography & primary growth cont. Secondary growth Exam I Examination of the primary and secondary plant body 4 Sept. 19/21/23 Lecture The plant life cycle alternation of generations Reproduction: spores, seeds, and fruits Plant breeding systems; Pollination syndromes Start plant life cycle experiment with Ceratopteris richardii Hormone-induced parthenocarpy in Brassica rapa I: Planting 5 Sept. 26/28/30 Section II: 6 Oct. 3/5/7 Breeding systems cont; outcrossing, inbreeding, apomixis and agamospermy Video: Private Life of Plants The Birds & The Bees Research paper II: Temple, S Plant-animal mutualism: Coevolution with Dodo leads to near extinction of plant. Science 197: Comparative plant reproductive processes Plant Functions: Physiology, Growth and Development Lecture Photosynthesis I - nature of light Photosynthesis II - structure/function relations Chap. 3,4 Chap. 4,5 Chap. 6 Chap. 5, 7 Supplemental reading Chap. 8

5 Exam II Comparison of C 3 and C 4 plants in a CO 2 rich world 7 Oct. 10/12/14 Lecture Photosynthesis III - C 3, C 4 & CAM Transport processes: Piñon pine - juniper case study Water transport: Xylem Ecophysiology of transpiration and stomatal conductance 8 Oct. 17/19/21 Carbohydrate translocation: Phloem Unique Plant presentations I Plant growth responses: Hormones and trophisms Hormone-induced parthenocarpy in Brassica rapa II: Data Collection 9 Oct. 24/26/28 Lecture Genetic control of development Research paper III: Nassar, N. and R. Ortiz Breeding cassava to feed the poor. Scientific American 302: Exam III Video: The Botany of Desire Section III: 10 Oct. 31/Nov. 2/4 Lecture Evolution and Diversity History of plant classification and naming Evolution and classification of plants and plant-like organisms Early evolution of land plants: algal origins Plant phylogeny construction I: Morphological Data 11 Nov. 7/9/11 Bryophyta, Hepatophyta, Anthocerophyta Seedless vascular plants I: Early Evolution Seedless vascular plants II: Lycophyta, Psilotophyta Plant phylogeny construction II: Chloroplast rbcl data 12 Nov. 14/16/18 Lecture Seedless vascular plants III: Sphenophyta, Pteridophyta Unique plant presentations II Exam IV Bryophytes and seedless vascular plants 13 Thanksgiving Break! 14 Nov. 28/30 Dec.2 Lecture Gymnosperms I: Cycadophyta, Ginkgophyta, Gnetophyta Gymnosperms II: Coniferophyta Video: First Flower Chap. 10 Chap. 10 Chap. 13 Chap. 16, 18 Chap. 20, 21 Chap. 21 Chap. 22, 23

6 Gymnosperms and Introduction to botanical keys 15 Dec. 5/7/9 Lecture Intro to Anthophyta, Carpel, Angiosperm life cycle revisited Embryological development; gametophytes Research paper IV: Scott A. Hodges, S. A. and M. L. Arnold Spurring Plant Diversification: Are Floral Nectar Spurs a Key Innovation? Proceedings of the Royal Society of London B: Biological Sciences 262: Angiosperms: Understanding floral and fruit diversity 16 Dec. 14 Final Exam 9:45 11:45 a.m. Chap. 23