Effects of Bacillus subtilis on Rose Growth Promotion and Rhizosphere Microbial Community Changes under Saline

Effects of Bacillus subtilis on Rose Growth Promotion and Rhizosphere Microbial Community Changes under Saline–Alkaline Stress

Published:2024-04-01 Issue:4 Volume:14 Page:730
ISSN:2073-4395
Container-title:Agronomy
language:en
Short-container-title:Agronomy

Author:

Zou Meng¹²³,Yu Kai¹²³,Liu Hao¹²³,Sheng Qianqian¹²³⁴,Zhang Yuanlan⁵

Affiliation:

1. College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China

2. Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China

3. Digital Innovation Design Research Center, Nanjing Forestry University, Nanjing 210037, China

4. Jinpu Research Institute, Nanjing Forestry University, Nanjing 210037, China

5. College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China

Abstract

This study investigated the impact of Bacillus subtilis on plant growth and the rhizosphere microbial community in rose cultivation under saline–alkaline stress. Saline–alkaline stress was simulated with varying salt and alkali levels. Bacillus subtilis was introduced, and 16S rRNA high-throughput sequencing was conducted to analyze the root microbial community. Introduction of Bacillus subtilis significantly promoted rose growth and mitigated saline–alkaline stress effects. Gene sequencing revealed increased abundance of microbial genera, such as Tessaracoccus, Intrasporangium, Glutamicibacter, Agrobacterium, Saccharibacteria, Falsochrobactrum, Mesorhizobium, Bacillus, Ensifer, and Ornithinicoccus, under normal and saline–alkaline conditions, while functional changes in colony abundance were observed under different environments through PICRUST2 analysis. Bacillus subtilis demonstrated potential in enhancing rose growth and stress resistance under saline–alkaline conditions, affecting the regulation of the root microbial community. This study provides insights for improving soil conditions and enhancing plant adaptability in saline–alkaline regions.

Funder

Young elite scientist sponsorship program by cast in China Association for Science and Technology

National Natural Science Foundation of China

Natural Science Foundation of Jiangsu Province of China

Natural Science Foundation of the Jiangsu Higher Education Institutions of China

Ministry of Education Humanities and Social Sciences Research “Study

Social Science Foundation Project of Jiangsu Province

Publisher

MDPI AG

Link

https://www.mdpi.com/2073-4395/14/4/730/pdf

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