Vanillin, a Newly Discovered Autotoxic Substance in Long-Term Potato Continuous Cropping Soil, Inhibits Plant Growth by Decreasing the Root Auxin Content and Reducing Adventitious Root Numbers

被引：3

作者：

Ma, Haiyan ^{[1
,2
]}

Li, Junji ^{[1
,2
]}

Luo, Aihua ^{[3
]}

Lv, Heping ^{[3
]}

Ren, Zhitong ^{[1
,2
]}

Yang, Hongkun ^{[1
,2
]}

Fang, Xiaoting ^{[1
,2
]}

Shahzad, Muhammad Amir ^{[1
,2
]}

Qu, Huijuan ^{[4
]}

Zhang, Kaiqin ^{[1
,2
]}

Wang, Qiang ^{[1
,2
]}

Zheng, Shunlin ^{[1
,2
,5
]}

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

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2023年 / 71卷 / 45期

关键词：

potato; continuous cropping obstacle; adventitiousroot; autotoxicity; vanillin; indole-3-aceticacid; ALLELOCHEMICALS; YIELD; ACID;

D O I：

10.1021/acs.jafc.3c05027

中图分类号：

S [农业科学];

学科分类号：

09 ;

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.

引用

页码：16993 / 17004

页数：12