Molecular Horticulture最新文献

Salicylic acid regulates biosynthesis of floral fragrance (E)-β-farnesene via NPR3-WRKY1 module in chrysanthemum. 水杨酸通过NPR3-WRKY1模块调控菊花花香(E)-β-法脂烯的生物合成。

IF 8.1

Molecular Horticulture Pub Date : 2025-09-05 DOI: 10.1186/s43897-025-00174-y

Zhiling Wang, Yixin Yuan, Rui Dong, Ruihong Zeng, Xin Zhao, Yanjie Xu, Junping Gao, Bo Hong, Zhaoyu Gu

{"title":"Salicylic acid regulates biosynthesis of floral fragrance (E)-β-farnesene via NPR3-WRKY1 module in chrysanthemum.","authors":"Zhiling Wang, Yixin Yuan, Rui Dong, Ruihong Zeng, Xin Zhao, Yanjie Xu, Junping Gao, Bo Hong, Zhaoyu Gu","doi":"10.1186/s43897-025-00174-y","DOIUrl":"10.1186/s43897-025-00174-y","url":null,"abstract":"Floral fragrance is essential for the attraction of pollinators and responses to biotic and abiotic stresses. It also enhances the quality and economic value of plants. Phytohormones, acting as key signaling molecules, are crucial roles in regulating plant growth and development. However, the molecular mechanisms underlying the biosynthesis of fragrance-related volatiles and their crosstalk with other endogenous signals within plants remain largely unknown. Here, we identified a sesquiterpene synthase gene, CmEβFS, in chrysanthemum, which encodes a catalytic enzyme responsible for synthesizing the key fragrance-related compound (E)-β-farnesene. We demonstrated that CmEβFS is negatively regulated by CmWRKY1, thereby inhibiting (E)-β-farnesene biosynthesis. Furthermore, CmWRKY1 interacts with the salicylic acid (SA) receptor CmNPR3 to regulate SA-mediated CmEβFS transcription. Our findings reveal that SA regulates (E)-β-farnesene biosynthesis by controlling CmEβFS expression via the CmWRKY1-CmNPR3 module during floral development. These findings enhanced our understanding of the mechanisms underlying SA-mediated regulation of volatile organic compounds (VOCs) biosynthesis and provided insights into improving floral fragrance.","PeriodicalId":29970,"journal":{"name":"Molecular Horticulture","volume":"5 1","pages":"52"},"PeriodicalIF":8.1,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12412252/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145001512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Convergent domestication of bitter apples and pears by selecting mutations of MYB transcription factors to reduce proanthocyanidin levels. 通过选择MYB转录因子突变降低原花青素水平的趋同驯化苦苹果和梨。

IF 8.1

Molecular Horticulture Pub Date : 2025-09-04 DOI: 10.1186/s43897-025-00173-z

Yarong Wang, Bin Xia, Qiong Lin, Huan Wang, Zhiyong Wu, Haiqing Zhang, Zhe Zhou, Zhenli Yan, Qiming Gao, Xiangzhan Zhang, Suke Wang, Zhenzhen Liu, Xiangpeng Meng, Yaru Zhang, Andrew P Gleave, Hengtao Zhang, Jia-Long Yao

{"title":"Convergent domestication of bitter apples and pears by selecting mutations of MYB transcription factors to reduce proanthocyanidin levels.","authors":"Yarong Wang, Bin Xia, Qiong Lin, Huan Wang, Zhiyong Wu, Haiqing Zhang, Zhe Zhou, Zhenli Yan, Qiming Gao, Xiangzhan Zhang, Suke Wang, Zhenzhen Liu, Xiangpeng Meng, Yaru Zhang, Andrew P Gleave, Hengtao Zhang, Jia-Long Yao","doi":"10.1186/s43897-025-00173-z","DOIUrl":"10.1186/s43897-025-00173-z","url":null,"abstract":"Fruit domestication has long aimed to reduce bitterness, yet the molecular mechanisms behind this trait remain only partially understood. Wild apples and pears naturally accumulate high levels of bitter proanthocyanidins (PAs), also known as condensed tannins. In this study, a convergent domestication process was identified in both fruits, involving the selection of weak alleles of MYB transcription factors that regulate PA biosynthesis. In apples, domestication targeted the MYB-Tannin-Tamer (MdMYBTT) gene. A 411-base pair transposable element inserted into the third exon of this gene in cultivated varieties produced a truncated, non-functional protein unable to activate the PA biosynthetic gene Anthocyanidin Reductase 1 (ANR1). The resulting mdmybtt allele led to reduced PA levels and was fixed in domesticated apples through positive selection. Likewise, in pears, a 57-base pair insertion in the promoter of the MYBPA1 gene suppressed its expression in cultivated varieties, limiting PA production. This insertion created the mybpa1 allele, which was similarly fixed during pear domestication. These findings highlight a shared evolutionary strategy to reduce fruit bitterness by selecting mutations that suppress PA synthesis. These findings offer valuable insights into the molecular basis of domestication and inform breeding efforts to optimize both flavor and nutritional quality.","PeriodicalId":29970,"journal":{"name":"Molecular Horticulture","volume":"5 1","pages":"51"},"PeriodicalIF":8.1,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12409940/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144993552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The ILR3-NRTs/NIA1/SWEET12 module regulates nitrogen uptake and utilization in apple. ilr3 - nrt /NIA1/SWEET12模块调控苹果氮素吸收和利用。

IF 8.1

Molecular Horticulture Pub Date : 2025-09-03 DOI: 10.1186/s43897-025-00172-0

Hong-Liang Li, Ran-Xin Liu, Xiang Wu, Xin-Long Guo, Shan-Shan Li, Tian-Tian Wang, Yan-Yan Guo, Xiao-Fei Wang, Chun-Xiang You

{"title":"The ILR3-NRTs/NIA1/SWEET12 module regulates nitrogen uptake and utilization in apple.","authors":"Hong-Liang Li, Ran-Xin Liu, Xiang Wu, Xin-Long Guo, Shan-Shan Li, Tian-Tian Wang, Yan-Yan Guo, Xiao-Fei Wang, Chun-Xiang You","doi":"10.1186/s43897-025-00172-0","DOIUrl":"10.1186/s43897-025-00172-0","url":null,"abstract":"Nitrogen (N) is essential for the physiological metabolism, growth, and development of plants. Plants have evolved a complex regulatory network for the efficient regulation of N uptake and utilization to adapt to fluctuations in environmental N levels. However, the mechanisms underlying the regulation of N absorption and utilization in apple remain unclear. Here, we identified MdILR3 (IAA-LEUCINE RESISTANT3) as an upstream regulator of MdNRT2.4 through yeast one-hybrid (Y1H) screening. MdILR3 overexpression significantly up-regulated the expression of MdNRT2.3/2.4 and MdNIA1, resulting in an increase in nitrate content and nitrate reductase activity. Y1H and EMSA assays revealed that MdILR3 directly interacted with the promoters of MdNRT2.3/2.4 and MdNIA1. Furthermore, MdILR3 can directly bind to the promoter of MdSWEET12 and activate its expression, thereby regulating sucrose transport to provide energy for N uptake in roots. In summary, we provide physiological and molecular evidence suggesting that MdILR3 may positively regulate nitrate response by activating the expression of genes related to N uptake and sugar transport. Our findings suggest that genetic improvements in apple could enhance its ability to absorb and utilize N.","PeriodicalId":29970,"journal":{"name":"Molecular Horticulture","volume":"5 1","pages":"57"},"PeriodicalIF":8.1,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12406481/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144993507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ClPS1 gene-mediated manipulation of 2n pollen formation enables the creation of triploid seedless watermelon. ClPS1基因介导的2n花粉形成调控可以产生三倍体无籽西瓜。

IF 8.1

Molecular Horticulture Pub Date : 2025-09-02 DOI: 10.1186/s43897-025-00170-2

Wenyu Pang, Qiaran Wang, Chenxin Li, Wenbing He, Jiafa Wang, Shujuan Tian, Li Yuan

{"title":"ClPS1 gene-mediated manipulation of 2n pollen formation enables the creation of triploid seedless watermelon.","authors":"Wenyu Pang, Qiaran Wang, Chenxin Li, Wenbing He, Jiafa Wang, Shujuan Tian, Li Yuan","doi":"10.1186/s43897-025-00170-2","DOIUrl":"10.1186/s43897-025-00170-2","url":null,"abstract":"Seedless watermelons are increasingly dominating the consumer market due to their convenience and high quality. However, traditional triploid watermelon breeding faces challenges such as long breeding cycles and low survival rates of triploid F1 progeny, severely hindering both breeding and production. In this study, we identified the ClPS1 gene as being associated with the formation of 2n gametes in watermelon. Expression analysis revealed that ClPS1 is highly expressed during meiosis and microsporogenesis. Using CRISPR/Cas9, we generated ClPS1-targeted mutants, which disrupted chromosome segregation at metaphase II. This led to the production of diploid male spores and abnormal division of male spores, ultimately generating diploid pollen grains, while female meiosis remained unaffected. Moreover, self-fertilization or crosses using these mutants as paternal parents yielded triploid and aneuploid watermelons. Our findings demonstrate, for the first time, the molecular manipulation of 2n gametes to create triploid seedless watermelons, offering new insights into polyploid breeding and evolutionary studies in the Cucurbitaceae family and other species.","PeriodicalId":29970,"journal":{"name":"Molecular Horticulture","volume":"5 1","pages":"48"},"PeriodicalIF":8.1,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12403409/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144971951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Apyrase in horticultural crops: insights into growth, stress adaptation and quality regulation. 园艺作物中的Apyrase：对生长、胁迫适应和质量调控的见解。

IF 8.1

Molecular Horticulture Pub Date : 2025-09-01 DOI: 10.1186/s43897-025-00168-w

Ying Li, Youxia Shan, Shuting Zhang, Jun Zhang, Junxian He, Hongxia Qu, Xuewu Duan, Yueming Jiang

{"title":"Apyrase in horticultural crops: insights into growth, stress adaptation and quality regulation.","authors":"Ying Li, Youxia Shan, Shuting Zhang, Jun Zhang, Junxian He, Hongxia Qu, Xuewu Duan, Yueming Jiang","doi":"10.1186/s43897-025-00168-w","DOIUrl":"10.1186/s43897-025-00168-w","url":null,"abstract":"Apyrases are a kind of nucleoside triphosphate diphosphohydrolases that catalyze the removal of the terminal phosphate group from nucleoside triphosphate (NTP) or nucleoside diphosphate (NDP). They also function either intracellularly or extracellularly in mediating the NTP/NDP homeostasis critical for plant growth, development, senescence, stress response and adaptation. Initial studies elucidated the biochemistry, structure and function of plant apyrases, while the recent progresses include the crystallography, newly discovered interaction partners and downstream targets for diverse apyrases. Furthermore, these apyrases play diverse roles in horticultural crops with the new recognition of extracellular ATP (eATP) receptors. This review summarized the types, structures, biochemical and physiological functions of plant apyrases and highlighted their roles in plant growth, development, biotic/abiotic stress responses and adaptation. The physiological activities among the apyrases, eATP with its receptor and eATP/iATP homeostasis, were reviewed. In particular, the quality formation / deterioration of postharvest horticultural crops caused by apyrases was emphasized. This paper reviewed the recent advances in the multiple roles of apyrases in horticultural crops and provided insights into the regulation of physiological activities by the enzyme from molecular network perspectives.","PeriodicalId":29970,"journal":{"name":"Molecular Horticulture","volume":"5 1","pages":"40"},"PeriodicalIF":8.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12400707/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144972024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role, regulation and application of plant fruit trichomes. 植物果实毛状体的作用、调控及应用。

IF 8.1

Molecular Horticulture Pub Date : 2025-08-08 DOI: 10.1186/s43897-025-00167-x

Ying Fu, Meng Li, Wei Zhang, Xueting Liu, Li Huang, Sen Zhang, Xinyue Liang, Liuxin Zhang, Kexuan Tang, Jocelyn K C Rose, Qian Shen

{"title":"The role, regulation and application of plant fruit trichomes.","authors":"Ying Fu, Meng Li, Wei Zhang, Xueting Liu, Li Huang, Sen Zhang, Xinyue Liang, Liuxin Zhang, Kexuan Tang, Jocelyn K C Rose, Qian Shen","doi":"10.1186/s43897-025-00167-x","DOIUrl":"10.1186/s43897-025-00167-x","url":null,"abstract":"Trichomes, hair-like specialized epidermal structures on the surface of most plant organs, play key roles in plant defense against herbivores, reducing water loss, and shielding plants from UV radiation, among other functions. Controlling trichome development and the biosynthesis of trichome-derived specialized metabolites is a common defensive strategy adopted by plants to protect themselves from environmental stresses. However, trichomes exhibit distinctive functions in different plant tissues. Fruits, being the most economically valuable organs of many horticultural plants, often have trichomes on their surface. Nevertheless, there is a notable lack of research on the regulation and function of fruit trichomes, in comparison to the extensive studies conducted on trichomes in other plant tissues. Further investigation is needed to elucidate the specific functions of fruit trichomes. The regulation of plant trichome development and the multiple roles of trichomes represent a dynamic area of plant biology with significant implications for agriculture and biotechnology. This review aims to enhance the understanding of the functions, regulatory mechanisms, and applications of fruit trichomes, emphasizing their importance in advancing agricultural sustainability and productivity.","PeriodicalId":29970,"journal":{"name":"Molecular Horticulture","volume":"5 1","pages":"41"},"PeriodicalIF":8.1,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12333248/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144800432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanism mediating the biosynthesis of the anti-insect volatile (Z)-3-hexenyl acetate in Acacia confusa Merr., an intercropping plant in tea plantations. 刺槐抗虫挥发物(Z)-3-己烯酯乙酸酯生物合成的调控机制。茶园的间作植物。

IF 8.1

Molecular Horticulture Pub Date : 2025-08-07 DOI: 10.1186/s43897-025-00165-z

Guotai Jian, Jianlong Li, Yong Wu, Chengshun Liu, Ronghua Li, Jiajia Qian, Yongxia Jia, Hanxiang Li, Jinchi Tang, Lanting Zeng

{"title":"Mechanism mediating the biosynthesis of the anti-insect volatile (Z)-3-hexenyl acetate in Acacia confusa Merr., an intercropping plant in tea plantations.","authors":"Guotai Jian, Jianlong Li, Yong Wu, Chengshun Liu, Ronghua Li, Jiajia Qian, Yongxia Jia, Hanxiang Li, Jinchi Tang, Lanting Zeng","doi":"10.1186/s43897-025-00165-z","DOIUrl":"10.1186/s43897-025-00165-z","url":null,"abstract":"Intercropping tea plants with Acacia confusa Merr. offers an environmentally sustainable approach to insect population control in tea plantations. However, the primary compounds in A. confusa responsible for this effect and their biosynthetic mechanisms remain undetermined. This study identified (Z)-3-hexenyl acetate, (Z)-3-hexenol, and 1-hexanol as the major volatiles in A. confusa. Field experiments demonstrated that all three compounds affected the tea leafhopper, a significant pest. (Z)-3-Hexenyl acetate repelled leafhoppers, while the other two compounds attracted them. Leafhopper feeding on tea leaves significantly decreased after fumigation with (Z)-3-hexenyl acetate, potentially altering the metabolism of defensive substances in tea leaves. These findings suggest (Z)-3-hexenyl acetate as a crucial component for pest control in tea plantations intercropped with A. confusa. Furthermore, the study identified the nucleus- and cytoplasm-localized AcAAT4 in A. confusa as responsible for (Z)-3-hexenyl acetate biosynthesis. Notably, AcAAT4 expression and the production of the upstream transcription factor AcMYC2b corresponded to the (Z)-3-hexenyl acetate emission pattern. The research also elucidated the positive regulatory effects of nucleus-localized AcMYC2b on AcAAT4 expression. These findings elucidate the molecular basis of (Z)-3-hexenyl acetate emission from A. confusa and provide a theoretical foundation for enhancing intercropping practices in tea plantations.","PeriodicalId":29970,"journal":{"name":"Molecular Horticulture","volume":"5 1","pages":"47"},"PeriodicalIF":8.1,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12330005/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144795688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chloroplast acetyltransferase GNAT2 acts as a redox-regulated switch for state transitions in tomato. 番茄叶绿体乙酰转移酶GNAT2是氧化还原调控的状态转换开关。

IF 8.1

Molecular Horticulture Pub Date : 2025-08-06 DOI: 10.1186/s43897-025-00164-0

Xiaoyun Wang, Jianghao Wu, Hongxin Li, Ying Liu, Dexian Han, Danhui Dong, Jialong Zhang, Lixin Zhang, Na Zhang, Yang-Dong Guo

{"title":"Chloroplast acetyltransferase GNAT2 acts as a redox-regulated switch for state transitions in tomato.","authors":"Xiaoyun Wang, Jianghao Wu, Hongxin Li, Ying Liu, Dexian Han, Danhui Dong, Jialong Zhang, Lixin Zhang, Na Zhang, Yang-Dong Guo","doi":"10.1186/s43897-025-00164-0","DOIUrl":"10.1186/s43897-025-00164-0","url":null,"abstract":"State transition is a dynamic process to balance the amount of light energy received by photosystem I (PSI) and photosystem II (PSII) so as to maintain an optimal photosynthetic yield and to minimize photo-damage in a fluctuating light environment. Recent studies show that chloroplast acetyltransferase participates in the acetylation of photosynthetic proteins and state transitions. However, the exact molecular mechanisms are poorly understood. In this study, we characterized a chloroplast acetyltransferase in Solanum lycopersicum, SlGNAT2, and found that mutants lacking this enzyme are deficient in state transitions and retarded in growth under fluctuating light. Acetyltransferase activity assays and fluorescence measurements suggest that 6Lys of mature SlLhcb2 protein is a target of SlGNAT2 and might be involved in state transitions. In addition, 131Cys-related redox changes of SlGNAT2 affect its acetylation activity on SlLhcb2 and influence the assembly of the PSI-LHCI-LHCII supercomplex. Therefore, we propose that the chloroplast redox state may regulate the activity of SlGNAT2 which in turn acetylates SlLhcb2 and mediates state transitions in higher plants.","PeriodicalId":29970,"journal":{"name":"Molecular Horticulture","volume":"5 1","pages":"39"},"PeriodicalIF":8.1,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12326663/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144790146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrative metabolome and genome-wide transcriptome analyses reveal the regulatory network for bioactive compound biosynthesis in lettuce upon UV-A radiation. 综合代谢组和全基因组转录组分析揭示了UV-A辐射下生菜生物活性化合物生物合成的调控网络。

IF 8.1

Molecular Horticulture Pub Date : 2025-08-05 DOI: 10.1186/s43897-025-00163-1

Lingyan Zha, Shiwei Wei, Xiao Yang, Qingliang Niu, Danfeng Huang, Jingjin Zhang

{"title":"Integrative metabolome and genome-wide transcriptome analyses reveal the regulatory network for bioactive compound biosynthesis in lettuce upon UV-A radiation.","authors":"Lingyan Zha, Shiwei Wei, Xiao Yang, Qingliang Niu, Danfeng Huang, Jingjin Zhang","doi":"10.1186/s43897-025-00163-1","DOIUrl":"10.1186/s43897-025-00163-1","url":null,"abstract":"Ultraviolet A (UV-A) radiation possesses great potential for enhancing the bioactive properties of vegetables and also has promising application prospects in controlled-environment agriculture. Lettuce is a widely cultivated model vegetable in controlled-environment agriculture with abundant health-beneficial bioactive compounds. However, the comprehensive regulatory effectiveness and mechanism of UV-A on bioactive compounds in lettuce remain largely unclear. To address this issue, we performed transcriptomic and metabolomic analyses of UV-A-treated lettuce to construct a global map of metabolic features and transcriptional regulatory networks for all major bioactive compounds. Our study revealed that UV-A promotes the accumulation of most phenylpropanoids and vitamins (provitamin A and vitamin E/K1/B6) but represses the biosynthesis of sesquiterpenoids. MYB transcription factors (TFs) are key activators of bioactive compound biosynthesis promoted by UV-A, whereas WRKY TFs primarily inhibit the production of sesquiterpenoids. Moreover, light signaling plays a crucial and direct regulatory function in stimulating the biosynthesis of phenylpropanoids and vitamins but not in that of sesquiterpenoids. In comparison, hormone signaling dominates a more decisive regulatory role in repressing sesquiterpenoid biosynthesis through working directly and interacting with WRKY TFs. This study paves the way toward an understanding of the bioactive compound regulation and genetic improvement of lettuce bioactivity value.","PeriodicalId":29970,"journal":{"name":"Molecular Horticulture","volume":"5 1","pages":"45"},"PeriodicalIF":8.1,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12323076/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144785496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two gap-free genomes of Argentina provide insights into their genetic relationships. 阿根廷的两个无间隙基因组提供了对它们的遗传关系的见解。

IF 8.1

Molecular Horticulture Pub Date : 2025-08-04 DOI: 10.1186/s43897-025-00160-4

Xien Wu, Qin Qiao, Qiang Cao, Zhongqiong Tian, La Qiong, Ticao Zhang

引用次数: 0