Readings
General
Rhizobia-http://en.wikipedia.org/wiki/Rhizobia
Scientific Literature
Here are some papers from the scientific literature examining this system. We don't expect you to understand everything in these papers, but we would like you to see the diversity of approaches that moderm scientists are using to study this system.
Lifestyle alternatives for rhizobia: mutualism, parasitism,
and forgoing- symbiosis
http://people.umass.edu/lsadler/adlersite/kiers/Alternativelifestyles1.pdf
Host sanctions and the legume–rhizobium mutualism-
http://www.nature.com/nature/journal/v425/n6953/abs/nature01931.html (then click on "full text"
A mechanistic molecular test of the plant-sanction hypothesis in legume–rhizobia mutualism
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VR3-4WPS9PP-1&_user=2605799&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1100808123&_rerunOrigin=google&_acct=C000055350&_version=1&_urlVersion=0&_userid=2605799&md5=491bf0585068046d9ae2f49e3bb7a905
Powerpoint Presentation
Plant-Microbe Interactions: Rhizobia/Legumes
http://www.slideshare.net/secret/AZNj5BIH5bqGC8
Expected Learning Outcomes
By the end of this course a fully engaged student should be able to
- discuss how and why participants in an apparently mutualistic relationship should be "selfish"
- describe the pattern of nodule formation
- discuss the importance of nitrogenase and leghaemogolbin for nitrogen fixation
- discuss circumstances under which plants would like to limit nodulation or nitrogen fixation by rhizobia
- discuss "partner choice" and "santioning" in this system
- intepret data and draw conclusions in experiments examining rhizobia-legume interactions
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