Nodulation Pathway

Scientists reveal long-standing mystery of ENOD40, a pioneering gene in legume nodulation research that marks nodule identity

A long-standing mystery of ENOD40, a pioneering gene in legume nodulation research, has been solved. ENOD40 acts as a natural microRNA sponge to regulate the legume nodulation pathway, enabling nitrogen-fixing nodule formation. The discovery sheds light on a new layer of control in plant-microbe symbiotic relationships.

Next generation biosensor reveals gibberellin’s critical role in legume nitrogen-fixation – paving the way for more productive legume crops and self-fertilizing cereals

Researchers at the University of Cambridge have discovered that the plant hormone gibberellin is essential for legume nitrogen-fixing root nodule formation and maturation. The study used a highly sensitive next-generation biosensor to visualize GA accumulation in specific zones of the root, revealing its critical role in nodulation.

Researchers uncover a key link in legume plant-bacteria symbiosis

Legume plants have a unique ability to interact with nitrogen-fixing bacteria, allowing them to thrive without external nitrogen. Researchers identified four essential phosphorylation sites on the SYMRK kinase that mediate this symbiotic relationship.

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Salt stress alters legume responses to symbiotic rhizobacteria by modulating gene expression

Salt stress alters legume responses to symbiotic rhizobacteria by modulating gene expression. Several genes with well-characterized functions in nodulation are highly induced under salt stress, making the plant hypersensitive to bacterial signals.