Between a rock and a hard place: metal nutrition in Chlamydomonas

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• Professor Sabeeha Merchant - UCLA
• Thursday 12 March 2009, 16:00-17:00
• Department of Plant Sciences, Large Lecture Theatre.

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The first row transition metals like iron, copper and manganese are nutritionally essential because they are used in bioenergetic systems to catalyze redox reactions, which are the basis for life. The bioavailability of these elements has changed over the few billion years since the origin of life so that the growth potential of many organisms can be limited by mineral nutrition. Accordingly, organisms have devised mechanisms to survive transient and even sustained deficiency. The mechanisms involved in maintaining copper and iron homeostasis in Chlamydomonas will be presented. Use of state of the art RNA -Seq methodology to characterize the Chlamydomonas transcriptome will also be presented. The analyses indicate previously unknown modifications of the photosynthetic apparatus and the potential for modification of bioenergetic pathways.

http://www.chem.ucla.edu/dept/Faculty/merchant/

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