湖北农业科学2025，Vol.64Issue(6)：21-27,58,8.DOI:10.14088/j.cnki.issn0439-8114.2025.06.005
高产花生品种开农80的耐盐性鉴定及机制解析
Identification and mechanism analysis of salt tolerance in high-yield peanut variety Kainong 80
摘要
Abstract
The salt tolerance and underlying molecular mechanisms of the hybrid peanut(Arachis hypogaea)cultivar Kainong 80 were systematically investigated.The results revealed that in regional yield trials,the pod yield of Kainong 80 was significantly higher than that of the control variety Yuhua 9327.Under 90 mmol/L NaCl stress during germination,the expression of AhNCED1 in Kainong 80 seeds was markedly down-regulated,while the expression of AhCYP707A1 and AhCYP707A2 was significantly up-regulated,re-sulting in a reduction in abscisic acid content.Additionally,the expression of AhGA2ox was sharply down-regulated,whereas the ex-pression of AhGA3ox was significantly up-regulated,leading to an increase in gibberellin content.Consequently,the germination vig-or,germination rate,and germination index of Kainong 80 under salt stress were significantly higher than those of the control variety Yuhua 9327.Under 200 mmol/L NaCl stress at the seedling stage,compared with the control variety Yuhua 9327,the activity of reac-tive oxygen species scavenging enzymes in Kainong 80 was significantly increased,and the contents of hydrogen peroxide and superox-ide anion were significantly decreased.Therefore,the number of roots of Kainong 80 seedlings was significantly increased,the con-tents of proline and chlorophyll were significantly increased,while the content of malondialdehyde was significantly decreased,and the survival rate was significantly increased.关键词
花生(Arachis hypogaea)/开农80/高产/耐盐性/赤霉素/脱落酸/基因表达/活性氧Key words
peanut(Arachis hypogaea)/Kainong 80/high yield/salt tolerance/gibberellin/abscisic acid/gene expression/reac-tive oxygen species分类
农业科技引用本文复制引用
王培云,赵文丽,马骥,邓丽,李阳,郭敏杰,申卫国,姚潜,任丽..高产花生品种开农80的耐盐性鉴定及机制解析[J].湖北农业科学,2025,64(6):21-27,58,8.基金项目
国家花生产业技术体系项目(CAR-13) （CAR-13）
