The Role of Wheat Germ Agglutinin in Plant–Bacteria Interactions: A Hypothesis and the Evidence in Its Support

The Role of Wheat Germ Agglutinin in Plant–Bacteria Interactions: A Hypothesis and the Evidence... Wheat plants are known to develop the associative symbiosis with the rhizobacterium Azospirillum brasilense.We studied the interaction of a lectin, wheat germ agglutinin (WGA), which is also found in wheat roots, with A. brasilense, strain sp245. When added to the azospirillum culture to the final concentration of 10–8to 10–9M, WGA enhanced IAA production, dinitrogen fixation, and ammonium excretion by bacterial cells. WGA also promoted the synthesis of proteins, both new and those already present in bacterial cells. The hypothesis that WGA is a signal molecule rerouting the bacterial metabolism in the direction favorable for the growth and development of the host plant has been put forward. It is suggested that signal properties of WGA are the basis for one of the functions of this lectin and essential for the effective associative symbiosis. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

The Role of Wheat Germ Agglutinin in Plant–Bacteria Interactions: A Hypothesis and the Evidence in Its Support

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1023/A:1016622618524
Publisher site
See Article on Publisher Site

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