文献类型： 外文期刊

作者： Ma, Haiyan ¹ ; Li, Junji ¹ ; Luo, Aihua ³ ; Lv, Heping ³ ; Ren, Zhitong ¹ ; Yang, Hongkun ¹ ; Fang, Xiaoting ¹ ; Shahzad, Muhammad Amir ¹ ; Qu, Huijuan ⁴ ; Zhang, Kaiqin ¹ ; Wang, Qiang ¹ ; Zheng, Shunlin ¹ ;

作者机构： 1.Sichuan Agr Univ, Coll Agron, State Key Lab Crop Gene Explorat & Utilizat Southw, Chengdu 611130, Sichuan, Peoples R China

2.Crop Ecophysiol & Cultivat Key Lab Sichuan Prov, Chengdu 611130, Sichuan, Peoples R China

3.Gansu Acad Agr Sci, Potato Res Inst, Lanzhou 730070, Gansu, Peoples R China

4.Sichuan Acad Agr Sci, Inst Biotechnol & Nucl Technol, Chengdu 610066, Sichuan, Peoples R China

5.Chengdu Joyson Agr Technol Co Ltd, Key Lab Tuber Crop Genet & Breeding, Minist Agr, Xindu 610500, Sichuan, Peoples R China

关键词： potato; continuous cropping obstacle; adventitiousroot; autotoxicity; vanillin; indole-3-aceticacid

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）

ISSN： 0021-8561

年卷期： 2023 年 71 卷 45 期

页码：

收录情况： SCI

摘要： Phenolic acids are known to reduce root biomass and hinder plant development, but it is unclear how they affect potato root traits. Over a 10 year field experiment, we found a negative correlation between the potato yield and continuous cropping years. The substantial reduction in adventitious root (AR) numbers was found to be primarily inhibited by soil vanillin accumulation. The study also found that vanillin had a more pronounced inhibitory effect on the potato yield than commonly reported ferulic acid and p-hydroxybenzoic acid. The decrease in yield was attributed to the reduction of root indole-3-acetic acid (IAA) content, which impeded the formation of AR. Exogenous IAA was found to increase the root IAA content and stimulate AR formation under vanillin stress, ultimately leading to an increase in the potato yield. This study provides valuable insights into potential strategies for the degradation of autotoxic substances and breeding of potato cultivars with enhanced resistance to autotoxicity.