What is it about?

In this paper, we bring the beta-rhizobia, the nitrogen-fixing and nodulating Burkholderiaceae species that establish symbiosis with legumes. We describe this from evolutionary, phylogenetic, biographical, and genetic perspectives.

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Why is it important?

Trying to understand how legumes developed the propensity to form nitrogen-fixing nodules with both beta-rhizobia and alpha-rhizobia may give us some hints as to whether or not this trait is common to all plants, particularly because of the closeness of the plant responses to the more ancient mycorrhizal symbioses. However, it has taken considerable evolutionary time to get to this endpoints.


Writing about possible events that happened millions of years ago is difficult. However, we hope that this article will stimulate others to think about some of the ideas presented in this paper.

Professor Ann M. Hirsch
University of California Los Angeles

Read the Original

This page is a summary of: Symbiotic Nitrogen Fixation in Legumes: Perspectives on the Diversity and Evolution of Nodulation byRhizobiumandBurkholderiaSpecies, July 2015, Wiley,
DOI: 10.1002/9781119053095.ch89.
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