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Datum: 08.04.2021

NEW PUBLICATION In a joint effort with the plant nutrition group of Xinping Chen from the College of Resources and Environmental Sciences of Southwest University in China and scientists from 16 universities and institutes, our recent work is now online in Nature Plants.

Peng Yu who recently established an independent Emmy Noether research group and his PhD student Xiaoming He are co-first authors of this publication.

The main findings are summarized below:

Beneficial interactions between plant roots and rhizosphere microorganisms

Beneficial interactions between plant roots and rhizosphere microorganisms are pivotal for plant fitness. Nevertheless, the molecular mechanisms controlling the feedback between root architecture and microbial community structure remain elusive in maize. Here, we demonstrate that transcriptomic gradients along the longitudinal root axis associate with specific shifts in rhizosphere microbial diversity. Moreover, we established that root-derived flavones predominantly promote the enrichment of bacteria of the taxa Oxalobacteraceae in the rhizosphere, which in turn promote maize growth and nitrogen acquisition. Genetic experiments demonstrate that LRT1-mediated lateral root development coordinates the interactions of the root system with flavone-dependent Oxalobacteraceae under nitrogen deprivation. In summary, these experiments reveal the genetic basis of the reciprocal interactions between root architecture and the composition and diversity of specific microbial taxa in the rhizosphere resulting in improved plant performance. These findings might open new avenues towards the breeding of high-yielding and nutrient-efficient crops by exploiting their interaction with beneficial soil microbes

Detailed information can be find below: