Chitooligosaccharides and Arbuscular Mycorrhizal fungi alleviate the damage by Phytophthora nicotianae to tobacco seedlings by inducing changes in rhizosphere microecology

Copyright © 2024 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 215(2024) vom: 06. Sept., Seite 108986
1. Verfasser: Ma, Junqing (VerfasserIn)
Weitere Verfasser: Li, Yang, Zhou, Heng, Qi, Lixin, Zhang, Zhifan, Zheng, Yanfen, Yu, Zheyan, Muhammad, Zeeshan, Yang, Xia, Xie, Yi, Chen, Qianru, Zou, Ping, Ma, Siqi, Li, Yiqiang, Jing, Changliang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Bacillus Black shank Caprylic acid Phytophthora nicotianae Rhizosphere microecology Root exudates Oligosaccharides oligochitosan Chitosan mehr... 9012-76-4 Chitin 1398-61-4
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245 1 0 |a Chitooligosaccharides and Arbuscular Mycorrhizal fungi alleviate the damage by Phytophthora nicotianae to tobacco seedlings by inducing changes in rhizosphere microecology 
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500 |a Date Completed 14.09.2024 
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520 |a Copyright © 2024 Elsevier Masson SAS. All rights reserved. 
520 |a Arbuscular mycorrhizal fungi (AMF) and Chitooligosaccharide (COS) can increase the resistance of plants to disease. COS can also promote the symbiosis between AMF and plants. However, the effects of AMF & COS combined application on the rhizosphere soil microbial community of tobacco and the improvement of tobacco's resistance to black shank disease are poorly understood.·We treated tobacco with AMF, COS, and combined application of AMF & COS (AC), respectively. Then studied the incidence, physio-biochemical changes, root exudates, and soil microbial diversity of tobacco seedling that was inoculated with Phytophthora nicotianae. The antioxidant enzyme activity and root vigor of tobacco showed a regular of AC > AMF > COS > CK, while the severity of tobacco disease showed the opposite regular. AMF and COS enhance the resistance to black shank disease by enhancing root vigor, and antioxidant capacity, and inducing changes in the rhizosphere microecology of tobacco. We have identified key root exudates and critical soil microorganisms that can inhibit the growth of P. nicotianae. The presence of caprylic acid in root exudates and Bacillus (WdhR-2) in rhizosphere soil microorganisms is the key factor that inhibits P. nicotianae growth. AC can significantly increase the content of caprylic acid in tobacco root exudates compared to AMF and COS. Both AMF and COS can significantly increase the abundance of Bacillus in tobacco rhizosphere soil, but the abundance of Bacillus in AC is significantly higher than that in AMF and COS. This indicates that the combined application of AMF and COS is more effective than their individual use. These findings suggest that exogenous stimuli can induce changes in plant root exudates, regulate plant rhizosphere microbial community, and then inhibit the growth of pathogens, thereby improving plant resistance to diseases 
650 4 |a Journal Article 
650 4 |a Bacillus 
650 4 |a Black shank 
650 4 |a Caprylic acid 
650 4 |a Phytophthora nicotianae 
650 4 |a Rhizosphere microecology 
650 4 |a Root exudates 
650 7 |a Oligosaccharides  |2 NLM 
650 7 |a oligochitosan  |2 NLM 
650 7 |a Chitosan  |2 NLM 
650 7 |a 9012-76-4  |2 NLM 
650 7 |a Chitin  |2 NLM 
650 7 |a 1398-61-4  |2 NLM 
700 1 |a Li, Yang  |e verfasserin  |4 aut 
700 1 |a Zhou, Heng  |e verfasserin  |4 aut 
700 1 |a Qi, Lixin  |e verfasserin  |4 aut 
700 1 |a Zhang, Zhifan  |e verfasserin  |4 aut 
700 1 |a Zheng, Yanfen  |e verfasserin  |4 aut 
700 1 |a Yu, Zheyan  |e verfasserin  |4 aut 
700 1 |a Muhammad, Zeeshan  |e verfasserin  |4 aut 
700 1 |a Yang, Xia  |e verfasserin  |4 aut 
700 1 |a Xie, Yi  |e verfasserin  |4 aut 
700 1 |a Chen, Qianru  |e verfasserin  |4 aut 
700 1 |a Zou, Ping  |e verfasserin  |4 aut 
700 1 |a Ma, Siqi  |e verfasserin  |4 aut 
700 1 |a Li, Yiqiang  |e verfasserin  |4 aut 
700 1 |a Jing, Changliang  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Plant physiology and biochemistry : PPB  |d 1991  |g 215(2024) vom: 06. Sept., Seite 108986  |w (DE-627)NLM098178261  |x 1873-2690  |7 nnns 
773 1 8 |g volume:215  |g year:2024  |g day:06  |g month:09  |g pages:108986 
856 4 0 |u http://dx.doi.org/10.1016/j.plaphy.2024.108986  |3 Volltext 
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