02 juin 2022 Praveen RAHI Institut Pasteur Biological Resource Center (Crbip)

The Key Drivers in Shaping the Phytomicrobiome

The microbial communities associated with plants plays a crucial role in both plant and ecosystem health. To harness the potential of phytomicrobiome, it is imperative to understand the key drivers involved in shaping it. Our study on the pea rhizosphere exhibited that the pea plants shape their rhizosphere microbiome, plausibly to meet its requirements for nutrient uptake and stress amelioration. A significant impact of elevation was observed on rhizosphere microbiome of Artemisia brevifolia in the Ladakh region, indicating the role of environmental factors in influencing the phytomicrobiome. A biogeographic pattern of distributions was recorded for the microbial communities of two tea growing regions, while the tea plant rhizosphere and root endophyte communities were more diverse then the bulk soils. This indicates the possible impact of farm management practices in shaping tea microbiome. Similarly, spatial distribution of rhizobia was recorded during several phylogeographic studies, including peas and fenugreek cultivated in India. Overall, these studies suggested that, several factors including, plant genotype, agriculture management practices and environment play important role in shaping the phytomicrobiome.

Publiée : 17/05/2022