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Professor Ton Bisseling, Wageningen University
Thursday 15 March 2007, 16:00-17:00
The legume toolbox for the Rhizobium root nodule symbiosis
- đ¤ Speaker: Professor Ton Bisseling, Wageningen University
- đ Date & Time: Thursday 15 March 2007, 16:00 - 17:00
- đ Venue: Department of Plant Sciences, Large Lecture Theatre
Abstract
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.
Series This talk is part of the Plant Sciences Departmental Seminars series.
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