Frontiers in Plant Science (Jun 2022)
Antimicrobial Terpenes Suppressed the Infection Process of Phytophthora in Fennel-Pepper Intercropping System
- Yuxin Yang,
- Yuxin Yang,
- Ying Li,
- Ying Li,
- Xinyue Mei,
- Xinyue Mei,
- Xinyue Mei,
- Min Yang,
- Min Yang,
- Min Yang,
- Huichuan Huang,
- Huichuan Huang,
- Huichuan Huang,
- Fei Du,
- Fei Du,
- Fei Du,
- Jiaqing Wu,
- Jiaqing Wu,
- Yiyi He,
- Yiyi He,
- Junwei Sun,
- Junwei Sun,
- Haining Wang,
- Haining Wang,
- Haining Wang,
- Xiahong He,
- Xiahong He,
- Xiahong He,
- Shusheng Zhu,
- Shusheng Zhu,
- Shusheng Zhu,
- Yingbin Li,
- Yingbin Li,
- Yingbin Li,
- Yixiang Liu,
- Yixiang Liu,
- Yixiang Liu
Affiliations
- Yuxin Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Yuxin Yang
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Ying Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Ying Li
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Xinyue Mei
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Xinyue Mei
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Xinyue Mei
- China France Plantomix Joint Laboratory, Yunnan Agricultural University, Kunming, China
- Min Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Min Yang
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Min Yang
- China France Plantomix Joint Laboratory, Yunnan Agricultural University, Kunming, China
- Huichuan Huang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Huichuan Huang
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Huichuan Huang
- China France Plantomix Joint Laboratory, Yunnan Agricultural University, Kunming, China
- Fei Du
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Fei Du
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Fei Du
- China France Plantomix Joint Laboratory, Yunnan Agricultural University, Kunming, China
- Jiaqing Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Jiaqing Wu
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Yiyi He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Yiyi He
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Junwei Sun
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Junwei Sun
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Haining Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Haining Wang
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Haining Wang
- China France Plantomix Joint Laboratory, Yunnan Agricultural University, Kunming, China
- Xiahong He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Xiahong He
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Xiahong He
- China France Plantomix Joint Laboratory, Yunnan Agricultural University, Kunming, China
- Shusheng Zhu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Shusheng Zhu
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Shusheng Zhu
- China France Plantomix Joint Laboratory, Yunnan Agricultural University, Kunming, China
- Yingbin Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Yingbin Li
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Yingbin Li
- China France Plantomix Joint Laboratory, Yunnan Agricultural University, Kunming, China
- Yixiang Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Yixiang Liu
- Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, College of Plant Protection, Yunnan Agricultural University, Kunming, China
- Yixiang Liu
- China France Plantomix Joint Laboratory, Yunnan Agricultural University, Kunming, China
- DOI
- https://doi.org/10.3389/fpls.2022.890534
- Journal volume & issue
-
Vol. 13
Abstract
The interactions between non-host roots and pathogens may be key to the inhibition of soilborne pathogens in intercropping systems. Fennel (Foeniculum vulgare) can be intercropped with a wide range of other plants to inhibit soilborne pathogens in biodiversity cultivation. However, the key compounds of fennel root exudates involved in the interactions between fennel roots and pathogens are still unknown. Here, a greenhouse experiment confirmed that intercropping with fennel suppressed pepper (Capsicum annuum) blight disease caused by Phytophthora capsici. Experimentally, the roots and root exudates of fennel can effectively interfere with the infection process of P. capsici at rhizosphere soil concentrations by attracting zoospores and inhibiting the motility of the zoospores and germination of the cystospores. Five terpene compounds (D-limonene, estragole, anethole, gamma-terpenes, and beta-myrcene) that were identified in the fennel rhizosphere soil and root exudates were found to interfere with P. capsica infection. D-limonene was associated with positive chemotaxis with zoospores, and a mixture of the five terpene compounds showed a strong synergistic effect on the infection process of P. capsici, especially for zoospore rupture. Furthermore, the five terpene compounds can induce the accumulation of reactive oxygen species (ROS), especially anethole, in hyphae. ROS accumulation may be one of the antimicrobial mechanisms of terpene compounds. Above all, we proposed that terpene compounds secreted from fennel root play a key role in Phytophthora disease suppression in this intercropping system.
Keywords
- synergistic antimicrobial ability
- intercropping
- Phytophthora capsici
- terpene compounds
- reactive oxygen species