Symbiosis between Frankia and actinorhizal plants: root nodules of non-legumes.
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2003-10-10
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Abstract
In actinorhizal symbioses, filamentous nitrogen-fixing soil bacteria of the genus Frankia induce the formation of nodules on the roots of a diverse group of dicotyledonous plants representing trees or woody shrubs, with one exception, Datisca glomerata. In the nodules, Frankia fixes nitrogen and exports the products to the plant cytoplasm, while being supplied with carbon sources by the host. Possibly due to the diversity of the host plants, actinorhizal nodules show considerable variability with regard to structure, oxygen protection mechanisms and physiology. Actinorhizal and legume-rhizobia symbioses are evolutionary related and share several features.
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Pawlowski K, Sirrenberg A. Symbiosis between Frankia and actinorhizal plants: root nodules of non-legumes. Indian Journal of Experimental Biology. 2003 Oct; 41(10): 1165-83