Difference between revisions of "Biology of Bryophytes and Lichens"
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The final grade is calculated based on your lecture grade (60%; i.e., 5% assignment(s), 20% midterm and 35% - cumulative (I'll explain) - final) and lab (40%; i.e., 15% project and 25% final). No curves, but chances to make up points if needed! | The final grade is calculated based on your lecture grade (60%; i.e., 5% assignment(s), 20% midterm and 35% - cumulative (I'll explain) - final) and lab (40%; i.e., 15% project and 25% final). No curves, but chances to make up points if needed! | ||
+ | <h2> <span class="mw-headline">Links</span></h2> | ||
+ | *Watch This: [http://www.youtube.com/watch?v=ALGDLzWcvnU movie of bryophyte gametes]<br/> | ||
+ | "Whitish smoke in the movie are small droplets containing smreps (deliberate misspelling of word for male gametes). | ||
+ | The smreps in the droplets are still un-motile. When touch the | ||
+ | water, they begin to swim. In our experiments, misting with water is | ||
+ | trigger of the explosion. If antheridia were mature, the explosion | ||
+ | begin within few minutes. The event continued about for 10 min. | ||
+ | Intense light for video recording also seems to accelerate the | ||
+ | phenomenon. Each antheridia is deeply sunk in a cavity of | ||
+ | antheridiophore and there is a very small pore on the top of each | ||
+ | cavity. Swollen cells of surrounding tissue might cause the pressure | ||
+ | force. Cavers (1903) and Muggoch & Walton (1942) also discussed about the mechanism, but, I think no one examined about the detail mechanism of the phenomenon. | ||
+ | In Hiroshima, the season of mreps dispersal is Spring (April to May). | ||
+ | In our field observation, we detected many airborne smreps in the | ||
+ | sunny day after rain shower. | ||
+ | I do not have detail data about how many species of liverworts have | ||
+ | airborne mreps. At least, Asian species of <i>Conocephalum</i> (C. | ||
+ | japonicum) do in the same manner." M. Shimamura<br/><br/> | ||
+ | Shimamura, M., Yamaguchi, T. & Deguchi, H. 2008. | ||
+ | Airborne sperm of Conocephalum conicum (Conocephalaceae). J. Plant | ||
+ | Res. 121: 69-71. | ||
+ | http://www.springerlink.com/content/fl2105h6428366m3/ <br/> | ||
+ | <br/> | ||
<h2> <span class="mw-headline">Schedule</span></h2> | <h2> <span class="mw-headline">Schedule</span></h2> | ||
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The syllabus is subject to change. You will get papers assigned one lecture and maybe one week ahead. Check the site frequently. | The syllabus is subject to change. You will get papers assigned one lecture and maybe one week ahead. Check the site frequently. | ||
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<td> Th 30 Apr </td><td>27. Bryophyte and lichen conservation</td><td></td><td></td></tr> | <td> Th 30 Apr </td><td>27. Bryophyte and lichen conservation</td><td></td><td></td></tr> | ||
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[[Category:EEB_Courses]] | [[Category:EEB_Courses]] |
Revision as of 21:21, 27 January 2009
Biology of Bryophytes and Lichens EEB 3240-001 & 001L (4 credits)
Spring 2008 Lectures: T/TH 11.00 AM-12.15 PM Lab W 1-4PM
Lectures and laboratory in TLS115.
Contact Information
Bernard Goffinet Associate Professor
Department of Ecology and Evolutionary Biology
office: 300 Pharmacy/Biology Building
voice: +1 860-486-5290
email: bernard.goffinet@uconn.edu
home page: http://hydrodictyon.eeb.uconn.edu/people/goffinet/
Teaching Assistant
Juan Carlos Villarreal
Department of Ecology and Evolutionary Biology
office: 316 Pharmacy/Biology Building
voice: +1 860-486-6306
email: juan.villarreal@uconn.edu
home page: http://hydrodictyon.eeb.uconn.edu/eebedia/index.php/Juan_Carlos_Villarreal
Contents
Textbook and readings
There is no official text book. Instead, you will be assigned readings from the primary literature to go with the lectures. The reading is required, and the material covered in the paper is part of the lecture material, and hence subject to questions on the midterm and final.
Two books that are relevant and available in the library: Shaw & Goffinet (2000) Bryophyte Biology or its latest version Goffinet & Shaw (2008) and Nash (Lichen Biology). If you are interested, you can buy them. I can also order them at a discount (although it may come out close to what you get on line with major distributors).
Grade
The final grade is calculated based on your lecture grade (60%; i.e., 5% assignment(s), 20% midterm and 35% - cumulative (I'll explain) - final) and lab (40%; i.e., 15% project and 25% final). No curves, but chances to make up points if needed!
Links
- Watch This: movie of bryophyte gametes
"Whitish smoke in the movie are small droplets containing smreps (deliberate misspelling of word for male gametes).
The smreps in the droplets are still un-motile. When touch the
water, they begin to swim. In our experiments, misting with water is
trigger of the explosion. If antheridia were mature, the explosion
begin within few minutes. The event continued about for 10 min.
Intense light for video recording also seems to accelerate the
phenomenon. Each antheridia is deeply sunk in a cavity of
antheridiophore and there is a very small pore on the top of each
cavity. Swollen cells of surrounding tissue might cause the pressure
force. Cavers (1903) and Muggoch & Walton (1942) also discussed about the mechanism, but, I think no one examined about the detail mechanism of the phenomenon.
In Hiroshima, the season of mreps dispersal is Spring (April to May).
In our field observation, we detected many airborne smreps in the
sunny day after rain shower.
I do not have detail data about how many species of liverworts have
airborne mreps. At least, Asian species of Conocephalum (C.
japonicum) do in the same manner." M. Shimamura
Shimamura, M., Yamaguchi, T. & Deguchi, H. 2008.
Airborne sperm of Conocephalum conicum (Conocephalaceae). J. Plant
Res. 121: 69-71.
http://www.springerlink.com/content/fl2105h6428366m3/
Schedule
Notes:
downloads require password; best viewed in Adobe Reader (some problems with the MAC "Preview" program).
The syllabus is subject to change. You will get papers assigned one lecture and maybe one week ahead. Check the site frequently.