脱落酸
脯氨酸
开枪
硒
龙葵
园艺
化学
过氧化物酶
植物
生物
酶
生物化学
氨基酸
有机化学
基因
作者
Zhiyu Li,Xiufen Li,Dai Zhang,Dilian Zhang,Xun Wang,Yi Tang,Lijin Lin
标识
DOI:10.1080/15226514.2023.2277800
摘要
Improvement of selenium (Se) uptake in fruit tree can improve the source of food Se for humans. In this study, the effect of various abscisic acid (ABA) concentrations on the Se uptake in Cyphomandra betacea Sendt. (Solanum betaceum Cav.) seedlings was studied under Se stress. Only the concentration of 20 μmol/L ABA promoted the growth of C. betacea seedlings by increasing the biomass and regulating the resistance physiology under Se stress. ABA also increased the Se content in C. betacea seedlings under Se stress. The concentration of ABA at 20 μmol/L got the maximum root Se and shoot Se contents, which increased by 76.64% and 55.83%, respectively, compared with the control. Correlation and grey relational analyses showed that the peroxidase activity and proline content had the first two closest relationship with the shoot Se content. This study shows that ABA can promote the Se uptake in C. betacea under Se stress, and the concentration of 20 μmol/L ABA is the optimum for Se uptake and growth of C. betacea.
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