Elucidating the Molecular Mechanisms of Physiological Fruit Abscission in Actinidia arguta Through Comparative Transcriptomics and Transient Genetic Transformation
文献类型： 外文期刊
第一作者： Yuan, Pengqiang
作者： Yuan, Pengqiang;Wang, Yanli;Sun, Yining;Liu, Guoliang;Qin, Hongyan;Fan, Shutian;Yan, Yiping;Sun, Bowei;Lu, Wenpeng
作者机构：
关键词：
期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）
ISSN： 2223-7747
年卷期： 2025 年 14 卷 11 期
页码：
收录情况： SCI
摘要： Actinidia arguta (A. arguta) is valued for its nutritional richness, but physiological fruit abscission severely limits production efficiency in elite cultivars. To unravel the molecular basis of this process, we compared two cultivars: abscission-prone 'KL' and abscission-resistant 'JL'. During fruit development, 'KL' exhibited an earlier decline in auxin (AUX) levels within the fruit abscission zone (FAZ), coupled with persistently higher ethylene (ETH) concentrations and polygalacturonase (PG) activity compared to 'JL'. Comparative transcriptomics identified abscission-related genes enriched in plant hormone signaling (AUX, ETH, ABA, JA, BR), starch/sucrose metabolism, and photosynthesis pathways. AUX signaling diverged predominantly during early development, while ETH, BR, and JA pathways varied across multiple stages. Exogenous applications of plant growth regulators (ethephon, 2,4-D, methyl jasmonate, and 2,4-epibrassinolide) and transient overexpression of key genes (AaETR1, AaERF035, AaPME68, AaPP2C27, AaMYC1, and AaPMEI10) validated their roles in modulating hormone crosstalk and cell wall remodeling. Overexpression of AaERF035 and AaPME68 likely accelerated abscission by enhancing ETH biosynthesis and pectin degradation, while AaPMEI10 and AaMYC1 potentially delayed abscission via suppression of cell wall-modifying enzymes. This study elucidates the hormonal and transcriptional networks governing fruit abscission in A. arguta, providing insights for targeted breeding and cultivation strategies to mitigate yield loss.
分类号：
- 相关文献
作者其他论文 更多>>
-
The nitrogen supply capacity and application methods of straw-chemical mixed fertilizer in the sweet corn variety 'Zhetian 19'
作者：Hou, Junfeng;Chen, Bin;Zhang, Ping;Tan, Heping;Han, Hailiang;Bao, Fei;Zhao, Fucheng;Wang, Yanli
关键词：SCMF; Sweet corn; Yield; Chlorophyll content; Dry matter; Soil nutrient
-
LG1 promotes preligule band formation through directly activating ZmPIN1 genes in maize
作者：Zhong, Zhuojun;Yao, Minhao;Cao, Yingying;Kong, Dexin;Shen, Rongxin;Wang, Haiyang;Liu, Qing;Wang, Baobao;Wang, Yanli
关键词：Maize (Zea mays L.); LG1; Leaf angle (LA); Preligule band; Auxin transport
-
Bacillus amyloliquefaciens strain Q1 inoculation enhances salt tolerance of barley seedlings by maintaining the photosynthetic capacity and intracellular Na+/K+ homeostasis
作者：Liu, Hongjiang;Amoanimaa-Dede, Hanna;Zhang, Yanli;Wu, Xiaojian;Deng, Fenglin;Qin, Yuan;Zeng, Fanrong;Qiu, Haiping;Wang, Yanli;Ouyang, Younan
关键词：
Bacillus amyloliquefaciens ; Soil salinization; Photosynthetic attributes; Ion homeostasis; Antioxidant capacity;Hordeum vulgare L. -
Electrochemical synthesis of mesoporous silica/graphene nanocomposite and its application in enhanced strategy for sensing of tannins
作者：Wang, Yanli;Liang, Jing;Yan, Feiyan;Li, Huiling;Xie, Liping;Tang, Li;Ning, Dejiao;Jiang, Cuiwen;Li, Tao;Huang, Xiaochuan;Ya, Yu;Huang, Ke-Jing
关键词：Graphene/mesoporous silica nanocomposites; One-step electrochemical synthesis; Tannins; Food analysis
-
Role of ultrasound and pectin in regulating the foaming properties and baking applications of liquid egg white
作者：Ali, Sadaqat;Jin, Haobo;Yang, Yaqin;Zhang, Yuanyuan;Wang, Yanli;Li, Erjiao;Fan, Xiang;Song, Yanbin;Sun, Yunxin;Cai, Zhaoxia;Sheng, Long;Ali, Sadaqat;Cai, Zhaoxia;Sheng, Long;Ali, Sadaqat;Cai, Zhaoxia;Sheng, Long
关键词：Liquid egg white; Pectin; Ultrasound
-
Evolutionary and Structural Analysis of the Aquaporin Gene Family in Rice
作者：Tong, Tao;Ye, Shuzhen;Ji, Zhijuan;Ouyang, Younan;Zeng, Fanrong;Wang, Yanli;Chen, Zhong-Hua;Chen, Zhong-Hua
关键词：aquaporin; rice; functional plasticity and evolution; stress adaptation mechanisms; transmembrane channel proteins; water and solute transport
-
Morphology-Based Evaluation of Pollen Fertility and Storage Characteristics in Male Actinidia arguta Germplasm
作者：Qin, Hongyan;Fan, Shutian;Xu, Peilei;Li, Jiaqi;Yang, Yiming;Wang, Yanli;Wang, Yue;Li, Changyu;Liu, Yingxue;Zhang, Baoxiang;Lu, Wenpeng;Zhao, Ying;Chen, Xiuling
关键词：hardy kiwiftuit (kiwiberry); pollen grains; germination capacity; pollen morphology
