The impact of OsASR5 on rice microbiome: Implications for nutrient cycling and stress response.
4 affiliations
- 1Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Departamento de Genética, Porto Alegre, RS, Brazil.
- 2Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia, Programa de Pós-Graduação em Biologia Celular e Molecular, Porto Alegre, RS, Brazil.
- 3Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Departamento de Botânica, Porto Alegre, RS, Brazil.
- 4Universidade Federal do Rio Grande do Sul, Departamento de Biofísica, Porto Alegre, RS, Brazil.
Abstract
Plant-microorganism interactions contribute to plant health by enhancing nutrient acquisition. The transcription factor OsASR5 regulates detoxification gene expression under aluminum stress in rice and is implicated as a positive regulator of responses to iron and phosphorus deficiency. Given its role in nutrient regulation, we investigated whether OsASR5 influences the assembly of the rice microbiome. In this study, we characterized the bacteria communities associated with the leaves and roots of OsASR5-RNAi rice plants compared to wild-type Oryza sativa cv. Nipponbare. Notably, OsASR5-RNAi plants showed altered bacterial beta diversity compared with wild type. The bacterial composition of OsASR5-RNAi plants differed in both organs, with decreased Desulfobacteriota and increased in Acidobacteria abundance in leaves. At the genus level, Methylobacterium, a known plant growth promoter, was less prevalent in leaves, while Magnetospirillum, associated with iron cycling, was less abundant in roots. Conversely, several bacteria were more abundant in OsASR5-RNAi plants, including Aneurinibacillus, Anaeromyxobacter, and Methylobacter, which are associated with nitrogen cycling and phosphorus solubilization. Additionally, Geobacter and Geothrix, both known for their role in metal reduction, particularly iron, were more abundant in OsASR5-RNAi plants. These suggest that OsASR5 affects plant-microbe interactions, potentially influencing nutrient cycling and plant stress responses through microbiome modulation.
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BibTeX
@article{sanchez2026impact,
title = {{The impact of OsASR5 on rice microbiome: Implications for nutrient cycling and stress response.}},
author = {Isabel Cristina Cadavid Sánchez and Marcia Margis-Pinheiro and Mateus Dias-Oliveira and Lucas Roani Ponte and Felipe Klein Ricachenevsky and Rogerio Margis},
journal = {Genetics and molecular biology},
year = {2026},
month = oct,
doi = {10.1590/1678-4685-gmb-2025-0064},
url = {https://europepmc.org/article/MED/42961031},
note = {CC BY},
}
RIS
TY - JOUR
TI - The impact of OsASR5 on rice microbiome: Implications for nutrient cycling and stress response.
AU - Isabel Cristina Cadavid Sánchez
AU - Marcia Margis-Pinheiro
AU - Mateus Dias-Oliveira
AU - Lucas Roani Ponte
AU - Felipe Klein Ricachenevsky
AU - Rogerio Margis
PY - 2026
DA - 2026/10/26
JO - Genetics and molecular biology
DO - 10.1590/1678-4685-gmb-2025-0064
UR - https://europepmc.org/article/MED/42961031
AB - Plant-microorganism interactions contribute to plant health by enhancing nutrient acquisition. The transcription factor OsASR5 regulates detoxification gene expression under aluminum stress in rice and is implicated as a positive regulator of responses to iron and phosphorus deficiency. Given its role in nutrient regulation, we investigated whether OsASR5 influences the assembly of the rice microbiome. In this study, we characterized the bacteria communities associated with the leaves and roots of OsASR5-RNAi rice plants compared to wild-type Oryza sativa cv. Nipponbare. Notably, OsASR5-RNAi plants showed altered bacterial beta diversity compared with wild type. The bacterial composition of OsASR5-RNAi plants differed in both organs, with decreased Desulfobacteriota and increased in Acidobacteria abundance in leaves. At the genus level, Methylobacterium, a known plant growth promoter, was less prevalent in leaves, while Magnetospirillum, associated with iron cycling, was less abundant in roots. Conversely, several bacteria were more abundant in OsASR5-RNAi plants, including Aneurinibacillus, Anaeromyxobacter, and Methylobacter, which are associated with nitrogen cycling and phosphorus solubilization. Additionally, Geobacter and Geothrix, both known for their role in metal reduction, particularly iron, were more abundant in OsASR5-RNAi plants. These suggest that OsASR5 affects plant-microbe interactions, potentially influencing nutrient cycling and plant stress responses through microbiome modulation.
SN - 1415-4757
SN - 1678-4685
ER -