Plant Cell最新文献_第2页

Root tip regeneration: Yet another feather in FERONIA's cap. 根尖再生：FERONIA的另一项成就。

IF 1 1区生物学

Plant Cell Pub Date : 2025-07-01 DOI: 10.1093/plcell/koaf154

Leonard Blaschek

引用次数: 0

Small DNA elements can act as both insulators and silencers in plants. 在植物中，小的DNA元素既可以起到绝缘体的作用，也可以起到消音器的作用。

IF 1 1区生物学

Plant Cell Pub Date : 2025-06-04 DOI: 10.1093/plcell/koaf084

Tobias Jores, Nicholas A Mueth, Jackson Tonnies, Si Nian Char, Bo Liu, Valentina Grillo-Alvarado, Shane Abbitt, Ajith Anand, Stéphane Deschamps, Scott Diehn, Bill Gordon-Kamm, Shuping Jiao, Kathy Munkvold, Heather Snowgren, Nagesh Sardesai, Stanley Fields, Bing Yang, Josh T Cuperus, Christine Queitsch

{"title":"Small DNA elements can act as both insulators and silencers in plants.","authors":"Tobias Jores, Nicholas A Mueth, Jackson Tonnies, Si Nian Char, Bo Liu, Valentina Grillo-Alvarado, Shane Abbitt, Ajith Anand, Stéphane Deschamps, Scott Diehn, Bill Gordon-Kamm, Shuping Jiao, Kathy Munkvold, Heather Snowgren, Nagesh Sardesai, Stanley Fields, Bing Yang, Josh T Cuperus, Christine Queitsch","doi":"10.1093/plcell/koaf084","DOIUrl":"10.1093/plcell/koaf084","url":null,"abstract":"Insulators are cis-regulatory elements that separate transcriptional units, whereas silencers are elements that repress transcription regardless of their position. In plants, these elements remain largely uncharacterized. Here, we use the massively parallel reporter assay Plant STARR-seq with short fragments of 8 large insulators to identify more than 100 fragments that block enhancer activity. The short fragments can be combined to generate more powerful insulators that abolish the capacity of the strong viral 35S enhancer to activate the 35S minimal promoter. Unexpectedly, when tested upstream of weak enhancers, these fragments act as silencers and repress transcription. Thus, these elements are capable of insulating or repressing transcription, depending on the regulatory context. We validate our findings in stable transgenic Arabidopsis thaliana, maize (Zea mays), and rice (Oryza sativa) plants. The short elements identified here should be useful building blocks for plant biotechnology.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":" ","pages":""},"PeriodicalIF":10.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12164753/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144249183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Retraction of: "NAC Transcription Factor SPEEDY HYPONASTIC GROWTH Regulates Flooding-Induced Leaf Movement in Arabidopsis". 撤回：“NAC转录因子快速下阴生长调节洪水诱导的拟南芥叶片运动”。

IF 1 1区生物学

Plant Cell Pub Date : 2025-06-04 DOI: 10.1093/plcell/koaf114

引用次数: 0

Cracking the seed code: How nitrate directly breaks ABA signaling for germination. 破解种子密码：硝酸盐如何直接破坏ABA信号萌发。

IF 1 1区生物学

Plant Cell Pub Date : 2025-06-04 DOI: 10.1093/plcell/koaf072

Nitin Uttam Kamble

引用次数: 0

Correction to: The Balance between the MIR164A and CUC2 Genes Controls Leaf Margin Serration in Arabidopsis. 修正：MIR164A和CUC2基因之间的平衡控制拟南芥叶缘锯齿形。

IF 1 1区生物学

Plant Cell Pub Date : 2025-06-04 DOI: 10.1093/plcell/koaf123

引用次数: 0

Correction to: A single dominant GLOBOSA allele accounts for repeated origins of hose-in-hose flowers in Sinningia (Gesneriaceae). 更正：一个单一的显性GLOBOSA等位基因解释了Sinningia（苦苣苣科）中软管中的软管花的重复起源。

IF 1 1区生物学

Plant Cell Pub Date : 2025-06-04 DOI: 10.1093/plcell/koaf147

引用次数: 0

Correction to: A deficient CP24 allele defines variation for dynamic nonphotochemical quenching and photosystem II efficiency in maize. 修正：CP24等位基因缺陷决定了玉米动态非光化学猝灭和光系统II效率的变异。

IF 1 1区生物学

Plant Cell Pub Date : 2025-06-04 DOI: 10.1093/plcell/koaf158

引用次数: 0

Maize big embryo 6 reveals roles of plastidial and cytosolic prephenate aminotransferases in seed and plant development. 玉米大胚6揭示了质体和细胞质预苯酸氨基转移酶在种子和植株发育中的作用。

IF 1 1区生物学

Plant Cell Pub Date : 2025-06-04 DOI: 10.1093/plcell/koaf067

Hui Liu, Jorge El-Azaz, Abou Yobi, Ryo Yokoyama, Shan Wu, Alec D Chin-Quee, Zachary Gorman, Ruthie Angelovici, Anna K Block, Hiroshi A Maeda, Donald R McCarty, Masaharu Suzuki

{"title":"Maize big embryo 6 reveals roles of plastidial and cytosolic prephenate aminotransferases in seed and plant development.","authors":"Hui Liu, Jorge El-Azaz, Abou Yobi, Ryo Yokoyama, Shan Wu, Alec D Chin-Quee, Zachary Gorman, Ruthie Angelovici, Anna K Block, Hiroshi A Maeda, Donald R McCarty, Masaharu Suzuki","doi":"10.1093/plcell/koaf067","DOIUrl":"10.1093/plcell/koaf067","url":null,"abstract":"In plants, embryo size is determined via interactions between metabolic and developmental signals. Maize (Zea mays) big embryo 6 (bige6) enhances embryo size while sharply reducing plant growth. Here, we show that BigE6 encodes a plastidial prephenate aminotransferase (PPA-AT), a key enzyme in the arogenate pathway for L-phenylalanine (Phe) and L-tyrosine (Tyr) biosynthesis. The maize BigE6 paralog, BigE6Like, encodes a cytosol-localized PPA-AT, revealing Phe and Tyr biosynthesis via cytosolic arogenate as a potential alternative to the known cytosolic phenylpyruvate pathway. Moreover, the single PPA-AT gene of Arabidopsis (Arabidopsis thaliana) encodes plastidial and cytosolic enzymes by alternative splicing. Transgenic rescue of a ppa-at mutant in Arabidopsis demonstrates that the plastidial PPA-AT is indispensable for seed formation due, in part, to its essential role in the female gametophyte. Leaves of bige6 maize maintained overall homeostasis for aromatic amino acids and downstream metabolites, revealing a resilience of mechanisms that scale growth to a limiting supply of Phe and Tyr. In bige6 seeds, broad perturbation of amino acid homeostasis is associated with transcriptomic upregulation of growth processes in the embryo and endosperm, implicating amino acid signaling in the regulation of embryo size. Our findings reveal the complexity and developmental dependence of growth responses to limiting amino acid biosynthesis.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":"37 6","pages":""},"PeriodicalIF":10.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12142466/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144234741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Species-specific PHYTOCHROME-INTERACTING FACTOR utilization in the plant morphogenetic response to environmental stimuli. 植物形态发生过程中对环境刺激的反应中，物种特异性 PHYTOCHROME-INTERACTING FACTOR 的利用。

IF 1 1区生物学

Plant Cell Pub Date : 2025-05-09 DOI: 10.1093/plcell/koaf048

Srinivas Kunta, Yardena Dahan, Shai Torgeman, Joanne Chory, Yogev Burko

{"title":"Species-specific PHYTOCHROME-INTERACTING FACTOR utilization in the plant morphogenetic response to environmental stimuli.","authors":"Srinivas Kunta, Yardena Dahan, Shai Torgeman, Joanne Chory, Yogev Burko","doi":"10.1093/plcell/koaf048","DOIUrl":"10.1093/plcell/koaf048","url":null,"abstract":"PHYTOCHROME-INTERACTING FACTORs (PIFs) regulate growth-related gene expression in response to environmental conditions. Among their diverse functions in regulating signal responses, PIFs play an important role in thermomorphogenesis (the response to increased ambient temperature) and in the shade avoidance response. While numerous studies have examined the varied roles of PIFs in Arabidopsis (Arabidopsis thaliana), their roles in crop plants remain poorly investigated. This study delves into the conservation of PIFs activity among species by examining their functions in tomato (Solanum lycopersicum) and comparing them to known PIF functions in Arabidopsis using single and higher-order mutants of tomato PIF genes (SlPIFs). We demonstrate that, in contrast to Arabidopsis, PIFs are not required for thermomorphogenesis-induced stem elongation in tomato. In addition, whereas Arabidopsis PIF8 has a minor effect on plant growth, tomato SlPIF8a plays a key role in the low red/far-red (R/FR) response. In contrast, SlPIF4 and SlPIF7s play minor roles in this process. We also investigated the tissue-specific low R/FR response in tomato seedlings and demonstrate that the aboveground organs exhibit a conserved response to low R/FR, which is regulated by SlPIFs. Our findings provide insights into PIF-mediated responses in crop plants, which may guide future breeding strategies to enhance yield under high planting densities.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":" ","pages":""},"PeriodicalIF":10.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12070396/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143630850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Challenges of translating Arabidopsis insights into crops. 将拟南芥研究成果转化为农作物所面临的挑战。

IF 1 1区生物学

Plant Cell Pub Date : 2025-05-09 DOI: 10.1093/plcell/koaf059

Cristóbal Uauy, Hilde Nelissen, Raquel Lía Chan, Johnathan A Napier, David Seung, Linsan Liu, Sarah M McKim

{"title":"Challenges of translating Arabidopsis insights into crops.","authors":"Cristóbal Uauy, Hilde Nelissen, Raquel Lía Chan, Johnathan A Napier, David Seung, Linsan Liu, Sarah M McKim","doi":"10.1093/plcell/koaf059","DOIUrl":"10.1093/plcell/koaf059","url":null,"abstract":"The significance of research conducted on Arabidopsis thaliana cannot be overstated. This focus issue showcases how insights from Arabidopsis have opened new areas of biology and directly advanced our understanding of crops. Here, experts intimately involved in bridging between Arabidopsis and crops share their perspectives on the challenges and opportunities for translation. First, we examine the translatability of genetic modules from Arabidopsis into maize, emphasizing the need to publish well-executed translational experiments, regardless of outcome. Second, we highlight the landmark success of HB4, the first GM wheat cultivar on the market, whose abiotic tolerance is borne from direct translation and based on strategies first outlined in Arabidopsis. Third, we discuss the decades-long journey to engineer oilseed crops capable of producing omega-3 fish oils, with Arabidopsis serving as a critical intermediary. Fourth, we explore how direct translation of starch synthesizing proteins characterized in Arabidopsis helped uncover novel mechanisms and functions in crops, with potential valuable applications. Finally, we illustrate how shared molecular factors between Arabidopsis and barley exhibit distinct molecular wiring as exemplified in cuticular and stomatal development. Together, these vignettes underscore the pivotal role of Arabidopsis as a foundational model plant while highlighting the challenges of translating discoveries into field-ready, commercial cultivars with enhanced knowledge-based traits.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":" ","pages":""},"PeriodicalIF":10.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12079398/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143772969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0