Why are most rhizobia beneficial to their plant hosts, rather than parasitic?

Multiple strains per plant and root-to-root (not seed-borne) transmission should favor rhizobia that invest in their own reproduction, rather than symbiotic N 2 fixation, as analogous factors may favor pathogen virulence. But legumes can select for greater mutualism, controlling nodule O 2 supply an...

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Veröffentlicht in:	Microbes and infection 2004-11, Vol.6 (13), p.1235-1239
Hauptverfasser:	Denison, R. Ford, Toby Kiers, E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Bacteriology Biological and medical sciences Bradyrhizobium - physiology Evolution Fabaceae Fundamental and applied biological sciences. Psychology Microbiology Miscellaneous Nitrogen Fixation Oxygen Oxygen - metabolism Plants - metabolism Plants - microbiology Rhizobium Rhizobium - physiology Sinorhizobium - physiology Symbiosis Virulence
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Beschreibung
Zusammenfassung:	Multiple strains per plant and root-to-root (not seed-borne) transmission should favor rhizobia that invest in their own reproduction, rather than symbiotic N 2 fixation, as analogous factors may favor pathogen virulence. But legumes can select for greater mutualism, controlling nodule O 2 supply and reducing reproduction of rhizobia that fix less N 2.
ISSN:	1286-4579 1769-714X
DOI:	10.1016/j.micinf.2004.08.005