Identification of antimicrobial peptide biosynthetic genes of Bacillus pumilus in suppression of Phytophthora spp.
Volume 18 • Issue 2
Tran Quang Van, Pakina Elena N., Ha Cuong Viet
DOI: https://doi.org/10.22450/1999-6837-2024-18-2-80-88
Published on: 11.06.2024
Phytophthora species adversely impact citrus growth and health, leading to significant reductions in quality and yield in commercial orchards. Bacillus pumilus, a natural inhabitant of soil, shows potential as a biological control agent for managing Phytophthora. PCR analysis for antimicrobial peptide genes demonstrated that B. pumilus strains possessed up to four distinct antibiotic biosynthesis genes: BacA, BmyB, spaS, and ituC, which contributed to the production of antibiotics including bacilysin, bacillomycin, subtilin, and iturin. This study underscores Bacillus pumilus isolates as effective bacterial biocontrol agents against Phytophthora. Moreover, applying bacterial suspensions of B. pumilus strains shows promise in alleviating root rot in citrus seedlings, with observed plant survival rates of 100% and maximal growth promotion particularly notable in plants treated with B. pumilus (VN-K13).
Tran Q. V., Pakina E. N., Ha C. V. Identification of antimicrobial peptide biosynthetic genes of Bacillus pumilus in suppression of Phytophthora spp. Dal’nevostochnyj agrarnyj vestnik. 2024;18;2:80–88. (in Russ.). https://doi.org/10.22450/1999-6837-2024-18-2-80-88.
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