Horticultural Plant Journal最新文献

Transcriptional profiles reveal the pivotal roles of RcHSFA2 and RcHSFA6b in mediating the heat stress response in Rosa chinensis RcHSFA2和RcHSFA6b转录谱揭示了RcHSFA2和RcHSFA6b在介导中国月果热应激反应中的关键作用

IF 5.7 1区农林科学

Horticultural Plant Journal Pub Date : 2026-04-20 DOI: 10.1016/j.hpj.2025.12.014

Yuxiao Shen, Yafen Kang, Lei Wang, Wanyu Dai, Liyun Shi, Tianxiao Sun, Wen Xing, Ping Luo, Wenqian Shang, Xueyuan Lou, Songlin He, Yonghua Li, Guogui Ning, Zheng Wang

{"title":"Transcriptional profiles reveal the pivotal roles of RcHSFA2 and RcHSFA6b in mediating the heat stress response in Rosa chinensis","authors":"Yuxiao Shen, Yafen Kang, Lei Wang, Wanyu Dai, Liyun Shi, Tianxiao Sun, Wen Xing, Ping Luo, Wenqian Shang, Xueyuan Lou, Songlin He, Yonghua Li, Guogui Ning, Zheng Wang","doi":"10.1016/j.hpj.2025.12.014","DOIUrl":"https://doi.org/10.1016/j.hpj.2025.12.014","url":null,"abstract":"Heat stress significantly constrains rose (<ce:italic>Rosa</ce:italic> spp.) growth and yield. Understanding the molecular mechanisms of heat stress response is essential for developing thermotolerant rose varieties. This study investigated the regulatory mechanisms underlying rose heat stress (42 °C) response by constructing gene regulatory networks (GRNs) based on temporal transcriptional patterns. Heat shock transcription factors (HSFs) showed significant enrichment across all heat treatment time points. Notably, <ce:italic>RcHSFA2</ce:italic> and <ce:italic>RcHSFA6b</ce:italic> maintained the highest expression levels throughout and emerged as hub HSFs in GRNs. The overexpression of <ce:italic>RcHSFA2</ce:italic> and <ce:italic>RcHSFA6b</ce:italic> in rose petals and tobacco reduced malondialdehyde and H<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">2</ce:inf> levels while enhancing antioxidant enzyme activities. RcHSFA2 and RcHSFA6b physically interact with RcHSFC1, and these RcHSFA–RcHSFC1 complexes contribute to the enhanced thermotolerance in rose petals compared with individual factors. In addition, RcHSFA6b activates <ce:italic>RcHSFA2</ce:italic> expression, and both RcHSFA2 and RcHSFA6b activate the expression of the small heat shock protein <ce:italic>RcHSP18.1a</ce:italic>. RcHSFC1 functions as a co-activator, enhancing the activation of the <ce:italic>RcHSP18.1a</ce:italic> promoter by RcHSFA2 and RcHSFA6b. Importantly, <ce:italic>RcHSP18.1a</ce:italic> overexpression enhances thermotolerance in rose petals. This study establishes a cascading regulatory network for heat stress response mediated by RcHSFA2 and RcHSFA6b, providing a molecular framework for targeted genetic improvement of thermotolerance in rose.","PeriodicalId":13178,"journal":{"name":"Horticultural Plant Journal","volume":"67 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2026-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147735921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The PbNAC56-PbMYB31 regulatory module mediates volatile ester biosynthesis in pear pbac56 - pbmyb31调控模块介导梨挥发性酯的生物合成

IF 5.7 1区农林科学

Horticultural Plant Journal Pub Date : 2026-04-08 DOI: 10.1016/j.hpj.2025.12.013

Fengli Zhou, Xue Wang, Yutong Wang, Zesheng Wang, Hongjuan Zhang, Caixia Zhang, Rui Zhai, Chengquan Yang, Zhigang Wang, Lingfei Xu

{"title":"The PbNAC56-PbMYB31 regulatory module mediates volatile ester biosynthesis in pear","authors":"Fengli Zhou, Xue Wang, Yutong Wang, Zesheng Wang, Hongjuan Zhang, Caixia Zhang, Rui Zhai, Chengquan Yang, Zhigang Wang, Lingfei Xu","doi":"10.1016/j.hpj.2025.12.013","DOIUrl":"https://doi.org/10.1016/j.hpj.2025.12.013","url":null,"abstract":"Volatile aroma compounds in fruits are key determinants of fruit quality and consumer acceptance. Research has increasingly clarified the pathways of biosynthesis of key volatile compounds, yet their transcriptional regulatory mechanisms remain poorly understood. In this study, ‘Wubu green pear’, a variety with a rich aroma, was used to investigate the molecular mechanism underlying ester synthesis, which is the main source of aroma in pear fruits. By integrating gas chromatography-mass spectrometry (GC–MS) metabolomics and RNA sequencing transcriptomics data during fruit development, it was found that the lipoxygenase gene <ce:italic>PbLOX2-1</ce:italic> is significantly associated with ester synthesis during post-harvest ripening. Functional verification confirmed that <ce:italic>PbLOX2-1</ce:italic> plays a key role in ester formation. Further analysis revealed that PbNAC56 is a major upstream activator of <ce:italic>PbLOX2-1</ce:italic>, validated by dual-luciferase reporter assay, yeast one-hybrid assay (Y1H), and electrophoretic mobility shift assay (EMSA). Notably, physical interactions between PbNAC56 and PbMYB31 were verified using yeast two-hybrid (Y2H), luciferase complementation assay (LCA), and GST pull-down assays, with the two forming a functional complex. Dual-luciferase and transient transformation assays demonstrated that the PbNAC56-PbMYB31 complex significantly enhanced <ce:italic>PbLOX2-1</ce:italic> promoter activity through synergistic transactivation. Our findings clarify a novel transcriptional regulatory module, PbNAC56-PbMYB31, which synergistically and significantly enhances the expression of <ce:italic>PbLOX2-1</ce:italic>, thereby affecting ester biosynthesis in pear. This work provides key molecular targets and a theoretical basis for understanding the regulatory network of fruit aroma biosynthesis and for molecular breeding aimed at improving the flavor quality of fruit crops.","PeriodicalId":13178,"journal":{"name":"Horticultural Plant Journal","volume":"36 8-12 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147681027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fifteen years of vegetable crop genome sequencing: achievements, challenges, and prospects 蔬菜作物基因组测序的十五年：成就、挑战与展望

IF 5.7 1区农林科学

Horticultural Plant Journal Pub Date : 2026-04-05 DOI: 10.1016/j.hpj.2025.09.019

Chenhao Zhang, Rui Cao, Tong Yu, Jinghua He, Lusheng Guo, Zipeng Meng, Xiao Ma, Di Guo, Xiaoming Song

引用次数: 0

Molecular Regulation Mechanism of Callus Proliferation of Paeonia ostii ‘Fengdan’ Flower Filament 凤丹牡丹花丝愈伤组织增殖的分子调控机制

IF 5.7 1区农林科学

Horticultural Plant Journal Pub Date : 2026-04-04 DOI: 10.1016/j.hpj.2025.12.012

Na Wang, Fei Wang, Liu Yang, Xiaoguang Wang, Ran Wang, Bixi Li, Yuying Li, Xiaogai Hou, Lili Guo

引用次数: 0

Changes of primary and secondary metabolite fruit composition in chilli pepper as affected by the cultivation management and heterotic effects 栽培管理和杂种优势对辣椒初级和次级代谢物果实组成的影响

IF 5.7 1区农林科学

Horticultural Plant Journal Pub Date : 2026-04-04 DOI: 10.1016/j.hpj.2025.10.017

Pasquale Tripodi, Giulia Bianchi, Carlo Di Cesare, Accursio Venezia, Andrea Pepe, Gabriele Campanelli, Nadia Ficcadenti, Roberto Lo Scalzo

引用次数: 0

The Capsicum Industry in China: Development and Impact 中国辣椒产业：发展与影响

IF 5.7 1区农林科学

Horticultural Plant Journal Pub Date : 2026-04-04 DOI: 10.1016/j.hpj.2026.02.002

Xuexiao Zou, Hao Xu, Fan Zhu, Sha Yang, Xiongze Dai, Fang Yuan

引用次数: 0

Promising strategy for eliminating chrysanthemum Chlorotic Mottle Viroid in chrysanthemum ‘Glory Pink’ 消灭菊花“荣耀粉”中菊花褪绿斑驳病毒的有前途的策略

IF 5.7 1区农林科学

Horticultural Plant Journal Pub Date : 2026-04-04 DOI: 10.1016/j.hpj.2025.09.018

Su Bin Cho, Aung Htay Naing, Trinh Ngoc Ai, Mi Young Chung, Chang Kil Kim

引用次数: 0

Genomic insights into the evolutionary history and adaptive capacity of the threatened ornamental Firmiana major in the Jinsha River Basin, China 金沙江流域濒危观赏植物Firmiana major的进化历史和适应能力的基因组分析

IF 5.7 1区农林科学

Horticultural Plant Journal Pub Date : 2026-04-03 DOI: 10.1016/j.hpj.2025.10.016

Yang Liu, Boqiang Wang, Congjia Li, Yuqian Ma, Jing Yang, Weibang Sun

引用次数: 0

Global DNA methylation shifts in a somatic hybrid introgression line underscore the critical role of epigenetic regulation in cauliflower curd development 体细胞杂交渗入系中DNA甲基化的整体变化强调了表观遗传调控在花椰菜凝乳发育中的关键作用

IF 5.7 1区农林科学

Horticultural Plant Journal Pub Date : 2026-04-02 DOI: 10.1016/j.hpj.2025.11.009

Liming Miao, Mengmeng Duan, Ning Guo, Xin Liu, Mei Zong, Guixiang Wang, Shuo Han, Fan Liu

引用次数: 0

Pan-genome-wide identification and co-expression analysis of rapeseed SBT genes reveals that BnaSBT1.4 negatively regulates the salt-stress response 油菜籽SBT基因的全基因组鉴定和共表达分析表明，BnaSBT1.4负调控盐胁迫反应

IF 5.7 1区农林科学

Horticultural Plant Journal Pub Date : 2026-03-24 DOI: 10.1016/j.hpj.2026.01.003

Shengting Li, Xiaodong Li, Boyu Meng, Daifei Song, Yuanyi Mao, Lin Liu, Wei Chang, Yonghai Fan, Mingchao Qian, Shahid Ullah Khan, Kun Lu

引用次数: 0