University of Cambridge > Talks.cam > Plant Sciences Departmental Seminars > The legume toolbox for the Rhizobium root nodule symbiosis

The legume toolbox for the Rhizobium root nodule symbiosis

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Prof Bisseling and his group have been at the cutting edge of research into the Rhizobium symbiosis for 2 decades, producing many high-impact papers. Abstract Legumes have the unique ability to establish a symbiosis with Rhizobium bacteria. This interaction results in the formation of root nodules. There the bacteria are hosted like transient organelles and they are able to reduce atmospheric nitrogen into ammonia.

Nodule formation is set in motion by so-called Nod factors which are specific lipochito-oligosaccharides secreted by the bacteria. About 10 legume genes have been identified that are essential for Nod factor signaling. Among these are 2 Nod factor receptors. In Medicago, one of these functions as signaling receptor involved in initiating early responses whereas the second is involved in root hair curling and start of infection process. The evolution of legume Nod factor signaling genes will be discussed.

http://www.mscwu.nl/tbisseling.htm

This talk is part of the Plant Sciences Departmental Seminars series.

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