BV01 Has Broad-Spectrum Biocontrol Potential and the Ability to Promote Plant Growth

Overview

Journal Microorganisms

Specialty Microbiology

Date 2023 Nov 25

PMID 38004639

Authors

Ting Huang

Yi Zhang

Zhihe Yu

Wenying Zhuang

Zhaoqing Zeng

Affiliations

Soon will be listed here.

Abstract

To evaluate the potential of a bacterial strain as a fungal disease control agent and plant growth promoter, its inhibitory effects on phytopathogens such as , , , , . , , , and were investigated. The results showed that the inhibitory rates in dual-culture and sterile filtrate assays against these eight phytopathogens ranged from 57% to 83% and from 36% to 92%. The strain was identified as based on morphological and physiological characterization as well as phylogenetic analyses of rRNA and the gyrase subunit A protein () regions. The results demonstrated that was able to produce fungal cell-wall-degrading enzymes, namely, protease, cellulase, and β-1,3-glucanase, and the growth-promotion substances indole-3-acetic acid (IAA) and siderophore. Furthermore, . BV01 had significant control effects on wheat root rot and pepper wilt in a greenhouse. Potted growth-promotion experiments displayed that BV01 significantly increased the height, stem diameter, and aboveground fresh and dry weights of wheat and pepper. The results imply that . BV01, a broad-spectrum biocontrol bacterium, is worth further investigation regarding its practical applications in agriculture.

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