Mechanisms of biocontrol of gray mold in postharvest pear fruits using the termite symbiont Streptomyces griseus H3950

Mechanisms of biocontrol of gray mold in postharvest pear fruits using the termite symbiont Streptomyces griseus H3950

Copyright © 2025 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 224(2025) vom: 12. Juli, Seite 109892
1. Verfasser: Yong, Daojing (VerfasserIn)
Weitere Verfasser: Yu, Yingying, Zhao, Shuai, Cui, Shoudong, Zhu, Shuai, Yang, Zonglin, Li, Yue, Zhang, Qijun, Gao, Shiqing, Ma, Junchi, Li, Aiying, Fu, Jun, Ni, Jinfeng, Zhang, Youming, Li, Ruijuan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2025
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Biocontrol Botrytis cinerea Gray mold Mechanism Pear fruits Streptomyces griseus H3950 Biological Control Agents
Beschreibung
Zusammenfassung:Copyright © 2025 Elsevier Masson SAS. All rights reserved.
Gray mold in pears, caused by Botrytis cinerea, leads to severe economic losses. We investigated the biocontrol of gray mold in postharvest pear fruits using the termite symbiont Streptomyces griseus H3950 and determined that S. griseus H3950 effectively controlled postharvest gray mold in pears. The control efficiency using a total fermentation broth culture or the cell culture (hyphae) of S. griseus H3950 was 78.38 % and 77.27 %, respectively, at 2 days post inoculation. Scanning electron microscopy indicated that S. griseus H3950 competed with B. cinerea for nutrition and space. Transcriptome analysis revealed that S. griseus H3950 could significantly induce the resistance of pear fruits to B. cinerea; the expression levels of seven defense-related genes (PR, WRKY22, WRKY29, CYP98A, POD, CHI, and GLU) of pears were highly increased in S. griseus H3950 treatment, with results verified by quantitative real-time polymerase chain reaction. Moreover, S. griseus H3950 treatment enhanced the lignin content of pear fruits. The results indicated that S. griseus H3950 exerted biocontrol against gray mold through competition and inducing resistance. Additionally, S. griseus H3950 was safe in a mouse model and could effectively colonize on pear fruits. Our findings suggest that S. griseus H3950 has great potential for controlling gray mold on postharvest fruits
Beschreibung:Date Completed 23.05.2025
Date Revised 23.05.2025
published: Print-Electronic
Citation Status MEDLINE
ISSN:1873-2690
DOI:10.1016/j.plaphy.2025.109892