Plant Communications
13 January 2025
Interspecific allelopathic interaction primes direct and indirect resistance in neighboring plants within agroforestry systems
Xing-Yu Ji1,2,6, Chen Ye2,6, Wenting Kang2, Wenjie Luan2, Yixiang Liu2,3, Xiahong He2,3, Min Yang2,3, Lifu Sun4, Wensong Sun5, Huichuan Huang2,3,*, Youyong Zhu1,2,3,* and Shusheng Zhu2,3,*
1 School of Agriculture, Yunnan University, Kunming 650504, China
2 State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
3 Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
4 Longbao Ginseng and Antler Co., Ltd, Benxi 117100, China
5 Institute of Medicinal Plant, Liaoning Academy of Agricultural Sciences, Shenyang 110161 China
6 These authors contributed equally to this article.
10.1016/j.xplc.2024.101173
Agroforestry practices are effective in enhancing resilience and reducing the vulnerability of farm systems to environmental disturbances. However, the mechanisms of interspecific allelopathic interactions for disease suppression in agroforestry systems remain largely unknown. In this issue, Ji et al. (2024) reveal that, in the agroforestry system of Panax ginseng (ginseng) cultivated under Pinus koraiensis (pine) forests, endo-borneol from pine needle leachates is a key allelochemical, which suppresses the occurrence of Alternaria leaf spot by activating defense-related pathways in ginseng plants while recruiting beneficial microbes to inhibit pathogen growth in the rhizosphere. The cover image depicts the interspecific allelopathic interactions in the ginseng-pine agroforestry system. Image by Shusheng Zhu and Xing-Yu Ji
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