文献类型： 外文期刊
作者： Zhang, Li 1 ; Du, Wei 1 ; Tu, Junfan 1 ; Zhu, Hongyan 1 ; Li, Xianming 1 ;
作者机构： 1.Hubei Acad Agr Sci, Inst Fruit & Tea, Hubei Key Lab Germplasm Innovat & Utilizat Fruit T, Wuhan, Peoples R China
关键词： light; pear; carotenoid; PSY; AGL8; LFY
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：4.8； 五年影响因子：5.7 ）
ISSN： 1664-462X
年卷期： 2025 年 16 卷
页码：
收录情况： SCI
摘要： Light is a key environmental factor that regulates fruit development and influences several important quality traits, including pericarp color. In pear fruits, carotenoids are the primary determinant of pericarp color. However, the molecular mechanisms underlying light-mediated carotenoid accumulation remain poorly understood. This study investigated the carotenoid contents in the peels of non-bagged (light-exposed) and bagged (shaded) pear fruits (Cuiguan, Pyrus pyrifolia) and revealed a significant differences in beta-carotene content between the two treatments. Transcriptome analysis revealed that the expression of phytoene synthase (PSY) was downregulated in bagged fruits, highlighting the regulatory role of PSY in carotenoid metabolism. To further validate this, we transiently overexpressed PSY, which resulted in a marked increase in beta-carotene levels at the injection site. Conversely, transient silencing of PSY led to a significant reduction in the beta-carotene content, confirming the pivotal role of PSY in regulating beta-carotene accumulation. Promoter analysis revealed that agamous-like 8 (AGL8) directly binds to the PSY promoter to activate its transcription. Protein-protein interaction assays demonstrated that AGL8 interacts with LEAFY (LFY), thereby increasing PSY expression. In conclusion, the AGL8-LFY complex coactivates PSY expression, regulating beta-carotene accumulation in pear fruit. This study provides new insights into the regulatory network governing fruit peel coloration, with potential applications for cultivation strategies to improve fruit quality.
- 相关文献
作者其他论文 更多>>
-
The miR156k-SQUAMOSA PROMOTER-BINDING PROTEIN-LIKE2 module regulates the abscisic acid receptor PYL2 during citrus fruit ripening
作者：Zhang, Li;Xu, Chenyu;Xu, Yanhui;Cai, Zhenmei;Zhao, Zhenmei;Cheng, Hanyuan;Yin, Minqiang;Yi, Hualin;Wu, Juxun;Zhang, Li;Li, Xianming;Yang, Haijian
关键词：
-
MiR-106a-5p by Targeting MAP3K2 Promotes Repair of Oxidative Stress Damage to the Intestinal Barrier in Prelaying Ducks
作者：Zhang, Li;Luo, Xiang;Tang, Rui;Wu, Yan;Liang, Zhenhua;Pi, Jinsong;Zhang, Hao;Zhang, Li;Luo, Xiang;Tang, Rui;Liu, Jingbo
关键词：apla-miR-106a-5p; intestinal barrier function; oxidative stress; prelaying ducks
-
Integrated transcriptome sequencing and iTRAQ quantitative proteomics analysis reveal the roles of PpJAZ1 and PpMYC2-2 in sand pear black spot disease resistance
作者：Yang, Xiaoping;Chen, Qiliang;Zhang, Jingguo;Fan, Jing;Du, Wei;Hu, Hongju;Zhao, Keke;Huang, Xiaosan;Hussain, Syed Bilal;Hu, Hongju
关键词：Pyrus pyrifolia; Alternaria alternata; iTRAQ quantitative proteomics; Black spot disease; PpJAZ1
-
Molecular characteristics and hypovirulence of different RNA viruses in Alternaria spp. strains, the pathogenic agent of pear black spot disease in China
作者：He, Ying;Wang, Qiong;Yang, Yuekun;Hong, Ni;Wang, Guoping;Wang, Liping;Li, Yanshen;Zhu, Hongyan;Wang, Liping
关键词：Pear black spot disease; Alternaria spp.; Mycovirus; High-throughput sequencing (HTS); Molecular diversity; Biological control
-
Cascading Effects of Boron Application Methods on Nutrient Distribution and Metabolite Profiles in Pear Trees
作者：Du, Wei;Fan, Jing;Chen, Qiliang;Zhang, Jingguo;Yang, Xiaoping;Hu, Hongju;Hussain, Syed Bilal;Hu, Hongju
关键词：Boron; Application method; Pear tree; Nutrient content; Metabolite profiles
-
Strigolactones Negatively Regulate Tobacco Mosaic Virus Resistance in Nicotiana benthamiana
作者：Huang, Renyan;Li, Shan;Zhang, Zhuo;Chen, Jianbin;Ning, Weimin;Peng, Jing;Zhang, Yu;Zhang, Songbai;Liu, Yong;Zhang, Deyong;Bie, Shuaijun;Liu, Yong;Zhang, Deyong;Yuan, Bin;Zhang, Li
关键词：strigolactones; tobacco mosaic virus; RNA sequencing; plant hormones; plant immunity
-
Transcriptomic and sugar metabolic analysis reveals molecular mechanisms of peach gummosis in response to Neofusicoccum parvum infection
作者：Zhang, Yang;Liu, Yong;Gan, Zhimeng;Du, Wei;Ai, Xiaoyan;Zhu, Wei;Wang, Huiliang;Wang, Furong;Gong, Linzhong;He, Huaping
关键词：peach; gummosis;
N. parvum ; transcriptome; sugar metabolome
