Research Biotica, Volume 4, Issue 2 : 37-41. Doi : 10.54083/ResBio/4.2.2022/37-41
Review Article

Published on : 27-Apr-2022

Rice Root Exudation: Signalling and Behavior of Shaping the DNRA Microbiome

  • Megha Kaviraj
  • ICAR-National Rice Research Institute, Cuttack, Odisha (753 006), India & The University of Burdwan, Burdwan, West Bengal (713 104), India
  • Upendra Kumar
  • ICAR-National Rice Research Institute, Cuttack, Odisha (753 006), India
  • Soumendranath Chatterjee
  • The University of Burdwan, Burdwan, West Bengal (713 104), India

Abstract

In natural ecosystems, plant health is mainly dependent on interactions with diverse and dynamic soil microbial communities. The microbial communities particularly those associated with nitrogen (N) cycling pathway inhabiting in rice field ecosystem have been described previously. Although, little is known about the taxonomic microbial players involved with dissimilatory nitrate reduction to ammonium (DNRA), a short-circuit N retention pathway in terrestrial N cycle. Therefore, we have to focus on how rice plants shape DNRA bacteria and how they alter over the course of several rice growth stages. Besides, we also shed lights on rice root physiology and the role of root exudates to address plant physiological aspects that may influence plant-microbe interactions.

Keywords

Ammonium (DNRA) pathway, Dissimilatory nitrate reduction, Microbiome, Rice, Root exudates, Signalling

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