Self-alleviation of continuous-cropping obstacles in potato via root-exudate-driven recruitment of growth-promoting bacteria

• DOI: 10.1016/j.xplc.2025.101372
• Publication Date: 2025-05-12T06:09:40Z
• Authors: Haiyan Ma; Zhitong Ren; Aihua Luo; Xiaoting Fang; Ruilin Liu; Chao Wu; Xinxin Shi; Junji Li; Heping Lv; Xiaohua Sun; Kaiqin Zhang; Shunlin Zheng
• Keywords: Exudate

Continuous cropping (CC) obstacles are among the primary factors limiting development of global agriculture. Although most plants negatively affected by barriers that develop with CC, they may also overcome altering soil biological and chemical environment to favor plant growth. In this study, we investigated mechanism which recruit beneficial microorganisms using root exudates alleviate in a 10- year CC potato system. On day 20 after emergence system, promoted an increase adventitious (AR) numbers increasing indole-3-acetic acid (IAA) content rhizosphere soil. Analysis bacterial communities 16S rRNA sequencing revealed altered community structure, increased abundance Pantoea sp. MCC16. Irrigation from significantly AR MCC16 abundance. According untargeted metabolomic analysis, nobiletin was identified as promoting colonization rhizosphere. Last, application or yield potatoes. Thus, can actively secrete unique metabolites MCC16, high IAA producer, help recover functional traits mitigate obstacles.