Molecular Plant最新文献_第10页

Primary carbohydrate metabolism genes participate in heat-stress memory at the shoot apical meristem of Arabidopsis thaliana. 初级碳水化合物代谢基因参与拟南芥嫩枝顶端分生组织的热应激记忆。

IF 27.5 1区生物学

Molecular Plant Pub Date : 2024-04-01 Epub Date: 2024-03-22 DOI: 10.1016/j.molp.2024.03.010

Justyna Jadwiga Olas, Federico Apelt, Maria Grazia Annunziata, Sheeba John, Sarah Isabel Richard, Saurabh Gupta, Friedrich Kragler, Salma Balazadeh, Bernd Mueller-Roeber

引用次数: 0

Macroalgal deep genomics illuminate multiple paths to aquatic, photosynthetic multicellularity. 大型藻类深度基因组学揭示了通往水生光合多细胞性的多种途径。

IF 27.5 1区生物学

Molecular Plant Pub Date : 2024-04-01 DOI: 10.1016/j.molp.2024.03.011

David R. Nelson, Alexandra Mystikou, Ashish Jaiswal, Cecilia Rad-Menéndez, Michael J. Preston, Frederik De Boever, Diana C. El Assal, Sarah Daakour, Michael W. Lomas, J. Twizere, David H. Green, W. Ratcliff, K. Salehi-Ashtiani

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A step forward in breeding for ratooning ability in rice. 在培育水稻成穗能力方面向前迈进了一步。

IF 27.5 1区生物学

Molecular Plant Pub Date : 2024-03-04 Epub Date: 2024-01-17 DOI: 10.1016/j.molp.2024.01.004

Amelia Henry

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Plant gene co-expression defines the biosynthetic pathway of neuroactive alkaloids. 植物基因共表达确定了神经活性生物碱的生物合成途径。

IF 27.5 1区生物学

Molecular Plant Pub Date : 2024-03-04 Epub Date: 2024-02-06 DOI: 10.1016/j.molp.2024.02.002

Fang Liu, Alisdair R Fernie, Youjun Zhang

引用次数: 0

Endomembrane-biased dimerization of ABCG16 and ABCG25 transporters determines their substrate selectivity in ABA-regulated plant growth and stress responses. ABCG16和ABCG25转运体的内膜偏向二聚化决定了它们在ABA调控的植物生长和胁迫反应中的底物选择性。

IF 27.5 1区生物学

Molecular Plant Pub Date : 2024-03-04 Epub Date: 2024-02-07 DOI: 10.1016/j.molp.2024.02.005

Yeling Zhou, Yuzhu Wang, Dong Zhang, Jiansheng Liang

{"title":"Endomembrane-biased dimerization of ABCG16 and ABCG25 transporters determines their substrate selectivity in ABA-regulated plant growth and stress responses.","authors":"Yeling Zhou, Yuzhu Wang, Dong Zhang, Jiansheng Liang","doi":"10.1016/j.molp.2024.02.005","DOIUrl":"10.1016/j.molp.2024.02.005","url":null,"abstract":"ATP-binding cassette (ABC) transporters are integral membrane proteins that have evolved diverse functions fulfilled via the transport of various substrates. In Arabidopsis, the G subfamily of ABC proteins is particularly abundant and participates in multiple signaling pathways during plant development and stress responses. In this study, we revealed that two Arabidopsis ABCG transporters, ABCG16 and ABCG25, engage in ABA-mediated stress responses and early plant growth through endomembrane-specific dimerization-coupled transport of ABA and ABA-glucosyl ester (ABA-GE), respectively. We first revealed that ABCG16 contributes to osmotic stress tolerance via ABA signaling. More specifically, ABCG16 induces cellular ABA efflux in both yeast and plant cells. Using FRET analysis, we showed that ABCG16 forms obligatory homodimers for ABA export activity and that the plasma membrane-resident ABCG16 homodimers specifically respond to ABA, undergoing notable conformational changes. Furthermore, we demonstrated that ABCG16 heterodimerizes with ABCG25 at the endoplasmic reticulum (ER) membrane and facilitates the ER entry of ABA-GE in both Arabidopsis and tobacco cells. The specific responsiveness of the ABCG16-ABCG25 heterodimer to ABA-GE and the superior growth of their double mutant support an inhibitory role of these two ABCGs in early seedling establishment via regulation of ABA-GE translocation across the ER membrane. Our endomembrane-specific analysis of the FRET signals derived from the homo- or heterodimerized ABCG complexes allowed us to link endomembrane-biased dimerization to the translocation of distinct substrates by ABCG transporters, providing a prototypic framework for understanding the omnipotence of ABCG transporters in plant development and stress responses.","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":null,"pages":null},"PeriodicalIF":27.5,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139702916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Expressing a human RNA demethylase as an assister improves gene-editing efficiency in plants. 将人类 RNA 去甲基化酶作为辅助剂表达可提高植物基因编辑的效率。

IF 27.5 1区生物学

Molecular Plant Pub Date : 2024-03-04 Epub Date: 2024-02-17 DOI: 10.1016/j.molp.2024.02.010

Mengyan Bai, Wenxin Lin, Chunyan Peng, Peizhe Song, Huaqin Kuang, Jieni Lin, Jieping Zhang, Jiyao Wang, Bo Chen, Huarong Li, Fanjiang Kong, Guifang Jia, Yuefeng Guan

引用次数: 0

Spatiotemporal oxygen dynamics in young leaves reveal cyclic hypoxia in plants. 幼叶中的时空氧动态揭示了植物的周期性缺氧。

IF 27.5 1区生物学

Molecular Plant Pub Date : 2024-03-04 Epub Date: 2024-01-19 DOI: 10.1016/j.molp.2024.01.006

Paolo M Triozzi, Luca Brunello, Giacomo Novi, Gianmarco Ferri, Francesco Cardarelli, Elena Loreti, Mariano Perales, Pierdomenico Perata

引用次数: 0

A new era for paclitaxel biosynthesis is coming. 紫杉醇生物合成的新时代即将到来。

IF 27.5 1区生物学

Molecular Plant Pub Date : 2024-03-04 Epub Date: 2024-01-18 DOI: 10.1016/j.molp.2024.01.005

Xiaonan Liu, Xiaoxi Zhu, Jian Cheng, Huifeng Jiang

引用次数: 0

BFP1: One of 700 Arabidopsis F-box proteins mediates degradation of JA oxidases to promote plant immunity. BFP1：拟南芥 700 个 F-box 蛋白之一，介导 JA 氧化酶的降解，促进植物免疫。

IF 27.5 1区生物学

Molecular Plant Pub Date : 2024-03-04 Epub Date: 2024-02-10 DOI: 10.1016/j.molp.2024.02.008

Claus Wasternack, Bettina Hause

引用次数: 0

Structures and ion transport mechanisms of plant high-affinity potassium transporters. 植物高亲和性钾转运体的结构和离子转运机制。

IF 27.5 1区生物学

Molecular Plant Pub Date : 2024-03-04 Epub Date: 2024-02-08 DOI: 10.1016/j.molp.2024.01.007

Jiangqin Wang, Yanping Luo, Fan Ye, Zhong Jie Ding, Shao Jian Zheng, Shuai Qiao, Yong Wang, Jiangtao Guo, Wei Yang, Nannan Su

{"title":"Structures and ion transport mechanisms of plant high-affinity potassium transporters.","authors":"Jiangqin Wang, Yanping Luo, Fan Ye, Zhong Jie Ding, Shao Jian Zheng, Shuai Qiao, Yong Wang, Jiangtao Guo, Wei Yang, Nannan Su","doi":"10.1016/j.molp.2024.01.007","DOIUrl":"10.1016/j.molp.2024.01.007","url":null,"abstract":"Plant high-affinity K+ transporters (HKTs) mediate Na+ and K+ uptake, maintain Na+/K+ homeostasis, and therefore play crucial roles in plant salt tolerance. In this study, we present cryoelectron microscopy structures of HKTs from two classes, class I HKT1;1 from Arabidopsis thaliana (AtHKT1;1) and class II HKT2;1 from Triticum aestivum (TaHKT2;1), in both Na+- and K+-bound states at 2.6- to 3.0-Å resolutions. Both AtHKT1;1 and TaHKT2;1 function as homodimers. Each HKT subunit consists of four tandem domain units (D1-D4) with a repeated K+-channel-like M-P-M topology. In each subunit, D1-D4 assemble into an ion conduction pore with a pseudo-four-fold symmetry. Although both TaHKT2;1 and AtHKT1;1 have only one putative Na+ ion bound in the selectivity filter with a similar coordination pattern, the two HKTs display different K+ binding modes in the filter. TaHKT2;1 has three K+ ions bound in the selectivity filter, but AtHKT1;1 has only two K+ ions bound in the filter, which has a narrowed external entrance due to the presence of a Ser residue in the first filter motif. These structures, along with computational, mutational, and electrophysiological analyses, enable us to pinpoint key residues that are critical for the ion selectivity of HKTs. The findings provide new insights into the ion selectivity and ion transport mechanisms of plant HKTs and improve our understanding about how HKTs mediate plant salt tolerance and enhance crop growth.","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":null,"pages":null},"PeriodicalIF":27.5,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139712598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0