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. 2020 Oct 30;11:580024. doi: 10.3389/fmicb.2020.580024

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Copyright © 2020 Kalam, Basu, Ahmad, Sayyed, El-Enshasy, Dailin and Suriani.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Ecological roles of Acidobacteria members in the soil. Acidobacteria members in the plant-soil ecosystem facilitate modulation of critical biogeochemical cycles viz., carbon, nitrogen, and sulfur cycles. Exopolysaccharides (produced by almost all cultured members) aid in soil matrix formation and contribute to plant growth promotion by facilitating water and nutrient uptake by plants. The representatives belonging to Granulicella and Acidocapsa genera exhibit in vitro plant growth promotion traits in the model plant Arabidopsis thaliana. These acidobacterial strains effectively produced the phytohormone indole-3-acetic acid (IAA) and siderophores, which significantly enhanced the plant growth parameters (shoot and root biomass). Figure designed using images from pinclipart.com.