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学者姓名：徐通达
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Abstract ：
The versatile and pivotal roles of the phytohormone auxin in regulating plant growth and development are typically linked to its directional transport, relying on the polarized PIN-FORMED (PIN) auxin exporters at the plasma membrane (PM). For decades, auxin has been proposed to promote PIN polarization, generating self-regulatory feedback mediating much of plant development, but mechanistic insight into this regulation is lacking. Here, we uncover an auxin-induced protein complex at the PM, containing auxin co-receptors trans-membrane kinases (TMKs) and PIN1 auxin exporter, as the core machinery that underlies this feedback regulation. Auxin promotes PIN1 phosphorylation by TMKs, modulating PIN1 polarization and transport activity. We also provide evidence that PIN1-exported extracellular auxin is crucial for TMK activation and cell elongation, thus forming the simplest two-element self-regulatory feedback circuit. Thus, these findings offer direct mechanistic insights into a potential self-organizing circuit for auxin signaling and transport to ensure proper plant development in Arabidopsis.
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| GB/T 7714 | Huang Rongfeng , Wang Jiacheng , Chang Mingzeng et al. TMK-PIN1 drives a short self-organizing circuit for auxin export and signaling in Arabidopsis [J]. | DEVELOPMENTAL CELL , 2026 , 61 (1) . |
| MLA | Huang Rongfeng et al. "TMK-PIN1 drives a short self-organizing circuit for auxin export and signaling in Arabidopsis" . | DEVELOPMENTAL CELL 61 . 1 (2026) . |
| APA | Huang Rongfeng , Wang Jiacheng , Chang Mingzeng , Tang Wenxin , Yu Yongqiang , Zhang Yi et al. TMK-PIN1 drives a short self-organizing circuit for auxin export and signaling in Arabidopsis . | DEVELOPMENTAL CELL , 2026 , 61 (1) . |
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The impact of seasonal variations on the quality of oolong tea products remains a subject of ongoing exploration. This study delves into the intricate relationships between seasonality, metabolites, and sensory characteristics in finished oolong tea products. Metabolomic data from 266 Tieguanyin oolong tea products harvested in both spring and autumn, along with corresponding sensory evaluations, were acquired. Using OPLS-DA and PLS-DA models with UPLC-QToF/MS data, our findings showed that seasonal effects were notably more pronounced in light-scented Tieguanyin products (lightly-roasted) compared to strong-scented products (moderately-roasted). Furthermore, over half of the identified key seasonal discriminant metabolites happened to be crucial for determining the sensory grade. The study marks the first-time recognition of triterpene saponins as critical factors in determining both the harvest season and the sensory grade of oolong tea. These insights deepen our understanding of the interplays between seasonal variations, metabolites, and sensory attributes in oolong tea products.
Keyword ：
Harvest season Harvest season LCMS LCMS Sensory Sensory Tieguanyin tea Tieguanyin tea Untargeted metabolomics Untargeted metabolomics
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| GB/T 7714 | Zhou, Junling , Gao, Shuilian , Du, Zhenghua et al. Seasonal variations and sensory profiles of oolong tea: Insights from metabolic analysis of Tieguanyin cultivar [J]. | FOOD CHEMISTRY , 2025 , 462 . |
| MLA | Zhou, Junling et al. "Seasonal variations and sensory profiles of oolong tea: Insights from metabolic analysis of Tieguanyin cultivar" . | FOOD CHEMISTRY 462 (2025) . |
| APA | Zhou, Junling , Gao, Shuilian , Du, Zhenghua , Jin, Shan , Yang, Zhenbiao , Xu, Tongda et al. Seasonal variations and sensory profiles of oolong tea: Insights from metabolic analysis of Tieguanyin cultivar . | FOOD CHEMISTRY , 2025 , 462 . |
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Auxin regulates various aspects of plant growth and development by modulating the transcription of target genes through the degradation of auxin/indole-3-acetic acid (Aux/IAA) repressors via the 26S proteasome. Proteasome regulator 1 (PTRE1), a positive regulator of proteasome activity, has been implicated in auxin-mediated proteasome suppression; however, the mechanism by which auxin modulates PTRE1 function remains unclear. Here, we demonstrate that auxin promotes the interaction between germin-like protein 1 (GLP1) and PTRE1, facilitating PTRE1 retention at the plasma membrane. The relocation of PTRE1 results in reduced nuclear 26S proteasome activity, and thus the attenuated Aux/IAA degradation and altered Aux/IAA homeostasis, ultimately resulting in suppressed auxin-mediated transcriptional regulation. Our findings uncover a previously uncharacterized regulatory axis in auxin signaling that controls Aux/IAA protein stability, functioning alongside the TIR1-and TRANSMEMBRANE KINASE 1 (TMK1)-mediated pathways, and highlight the coordination of auxin signaling from the cell surface to the nucleus via auxin-induced PTRE1 relocation, which fine-tunes Aux/IAA protein homeostasis and auxin responses.
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| GB/T 7714 | Xu, Faqing , Yu, Yongqiang , Guan, Bin et al. Germin-like protein 1 interacts with proteasome regulator 1 to regulate auxin signaling by controlling Aux/IAA homeostasis [J]. | CELL REPORTS , 2025 , 44 (8) . |
| MLA | Xu, Faqing et al. "Germin-like protein 1 interacts with proteasome regulator 1 to regulate auxin signaling by controlling Aux/IAA homeostasis" . | CELL REPORTS 44 . 8 (2025) . |
| APA | Xu, Faqing , Yu, Yongqiang , Guan, Bin , Xu, Tongda , Xu, Zhihong , Xue, Hongwei . Germin-like protein 1 interacts with proteasome regulator 1 to regulate auxin signaling by controlling Aux/IAA homeostasis . | CELL REPORTS , 2025 , 44 (8) . |
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Transmembrane-receptor-mediated recognition is fundamental to sig-naling and nutrient transport in diverse biological systems. While traditional models involve direct ligand-receptor binding, emerging evidence supports a relay model, in which substrate-binding proteins transfer ligands to receptors or form cooperative receptor complexes. This mechanism enhances the specificity and versatility of the ligand-receptor network.
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| GB/T 7714 | Pei, Yong , Yin, Zhiyuan , Xu, Tongda et al. Relay model: bridging ligands and receptors in networks [J]. | TRENDS IN PLANT SCIENCE , 2025 , 30 (7) : 702-704 . |
| MLA | Pei, Yong et al. "Relay model: bridging ligands and receptors in networks" . | TRENDS IN PLANT SCIENCE 30 . 7 (2025) : 702-704 . |
| APA | Pei, Yong , Yin, Zhiyuan , Xu, Tongda , Dou, Daolong . Relay model: bridging ligands and receptors in networks . | TRENDS IN PLANT SCIENCE , 2025 , 30 (7) , 702-704 . |
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本发明公开了一套用于植物的LSR基因重组系统，属于生物技术领域。该重组系统包含Kp03大丝氨酸重组酶及其对应的attP和attB组成，无需额外提供辅因子就能在水稻和拟南芥细胞中实现高效的基因敲入编辑。本发明的基因编辑蛋白Kp03能够在水稻和拟南芥细胞中表现出高效的质粒水平基因敲入能力，最高可在attB靶位点插入27kb的大DNA片段，而且将attB序列截短到15bp仍能进行有效的基因敲入编辑，从而有利于扩展基因编辑的使用范围。此外还可将3.4kb的外源DNA片段成功插入到水稻基因组中，为植物大片段基因敲入提供了新的基因编辑器，具有重要的应用价值。
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| GB/T 7714 | 熊延 , 闫大琦 , 徐通达 et al. 一套用于植物的LSR基因重组系统 : CN202510086748.6[P]. | 2025-01-20 . |
| MLA | 熊延 et al. "一套用于植物的LSR基因重组系统" : CN202510086748.6. | 2025-01-20 . |
| APA | 熊延 , 闫大琦 , 徐通达 , 朱晓玥 , 孟彦彦 , 张楠 et al. 一套用于植物的LSR基因重组系统 : CN202510086748.6. | 2025-01-20 . |
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Heat stress inhibits photosynthesis efficiency, thereby suppressing plant growth and crop yield. However, the mechanism underlying this inhibition is not fully understood. Here, we report that the multiple organellar RNA-editing factor 8 (MORF8) forms condensates with solid-like properties in chloroplasts upon heat stress. In vitro data show that the MORF8 condensation is intrinsically heat-dependent and primarily determined by its IDR (intrinsically disordered region). Purification and characterization of MORF8 condensates show that numerous editing factors including PPR proteins and MORFs are partitioned. We provide both genetic and biochemical evidence that MORF8 condensation inhibits chloroplast RNA editing. In agreement, we find that both heat stress and MORF8 condensation lead to reduced editing of RNAs encoding NADH dehydrogenase-like (NDH) complex and impaired NDH activity and photosynthesis efficiency. These findings uncover MORF8 as a putative chloroplastic thermosensor that mediates photosynthesis inhibition by heat and highlight the functional significance of solid material properties of biomolecular condensates.
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| GB/T 7714 | Wu, Jie , Wang, Yue , Chen, Haodong et al. Solid-like condensation of MORF8 inhibits RNA editing under heat stress in Arabidopsis [J]. | NATURE COMMUNICATIONS , 2025 , 16 (1) . |
| MLA | Wu, Jie et al. "Solid-like condensation of MORF8 inhibits RNA editing under heat stress in Arabidopsis" . | NATURE COMMUNICATIONS 16 . 1 (2025) . |
| APA | Wu, Jie , Wang, Yue , Chen, Haodong , Xu, Tongda , Yang, Wenqiang , Fang, Xiaofeng . Solid-like condensation of MORF8 inhibits RNA editing under heat stress in Arabidopsis . | NATURE COMMUNICATIONS , 2025 , 16 (1) . |
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Microorganisms residing in different parts of tea plants play an important role in the growth and development, disease resistance, and stress tolerance of the plants; these microorganisms have certain potential for improving the quality of tea. This forum mainly summarizes and discusses the role of microorganisms in regulating tea plants and their prospects for improving the quality of tea.
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| GB/T 7714 | Tang, Wenxin , Xin, Wei , Xu, Tongda et al. Tea plant microorganisms in the improvement of tea quality [J]. | TRENDS IN MICROBIOLOGY , 2025 , 33 (1) : 11-14 . |
| MLA | Tang, Wenxin et al. "Tea plant microorganisms in the improvement of tea quality" . | TRENDS IN MICROBIOLOGY 33 . 1 (2025) : 11-14 . |
| APA | Tang, Wenxin , Xin, Wei , Xu, Tongda , Yang, Zhenbiao . Tea plant microorganisms in the improvement of tea quality . | TRENDS IN MICROBIOLOGY , 2025 , 33 (1) , 11-14 . |
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The phytohormone auxin exerts control over remarkable developmental processes in plants. It moves from cell to cell, resulting in the creation of both extracellular auxin and intracellular auxin, which are recognized by distinct auxin receptors. These two auxin signaling systems govern different auxin responses while working together to regulate plant development. In this review, we outline the latest research advancements in unraveling these auxin signaling pathways, encompassing auxin perception and signaling transductions. We emphasize the interaction between extracellular and intracellular auxin, which contributes to the intricate role of auxin in plant development. Copyright (c) 2024, The Authors. Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, and Genetics Society of China. Published by Elsevier Limited and Science Press. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Keyword ：
ABP1/ABLs ABP1/ABLs Extracellular auxin signaling Extracellular auxin signaling Intracellular auxin signaling Intracellular auxin signaling TIR1/AFBs TIR1/AFBs TMKs TMKs
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| GB/T 7714 | Tang, Wenxin , Yu, Yongqiang , Xu, Tongda . The interplay between extracellular and intracellular auxin signaling in plants [J]. | JOURNAL OF GENETICS AND GENOMICS , 2025 , 52 (1) : 14-23 . |
| MLA | Tang, Wenxin et al. "The interplay between extracellular and intracellular auxin signaling in plants" . | JOURNAL OF GENETICS AND GENOMICS 52 . 1 (2025) : 14-23 . |
| APA | Tang, Wenxin , Yu, Yongqiang , Xu, Tongda . The interplay between extracellular and intracellular auxin signaling in plants . | JOURNAL OF GENETICS AND GENOMICS , 2025 , 52 (1) , 14-23 . |
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Environmental stressors, including pathogens, substantially affect the growth of host plants. However, how non-adapted bacteria influence nonhost plants has not been reported. Here, we reveal that infection of Arabidopsis flowers by Xanthomonas oryzae pv. oryzae PXO99A, a bacterial pathogen causing rice blight disease, suppresses ovule initiation and reduces seed number without causing visible disease symptoms. TleB, secreted by the type VI secretion system (T6SS), interacts with plant E3 ligase PUB14 and disrupts the function of the PUB14-BZR1 module, leading to decreased ovule initiation and seed yield. On the other site, PUB14 concurrently promotes TleB's degradation. Our findings indicate that bacterial infections in nonhost plants directly repress offspring production. The regulatory mechanism by effectors PUB14-BZR1 is widely present, suggesting that plants may balance reproduction and defense and produce fewer offspring to conserve resources, thus enabling them to remain in a standby mode prepared for enhanced resistance.
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| GB/T 7714 | Yang, Jing-Ting , Tan, Zhi-Min , Jiang, Yu-Tong et al. Non-adapted bacterial infection suppresses plant reproduction [J]. | SCIENCE ADVANCES , 2025 , 11 (2) . |
| MLA | Yang, Jing-Ting et al. "Non-adapted bacterial infection suppresses plant reproduction" . | SCIENCE ADVANCES 11 . 2 (2025) . |
| APA | Yang, Jing-Ting , Tan, Zhi-Min , Jiang, Yu-Tong , Bai, Yu-Xuan , Zhang, Yan-Jie , Xue, Hong-Wei et al. Non-adapted bacterial infection suppresses plant reproduction . | SCIENCE ADVANCES , 2025 , 11 (2) . |
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Plant stem cells, residing in the shoot and root apical meristems, are fundamental for continuous growth and organ formation throughout the plant life cycle. Their regulation is driven by the convergence of endogenous developmental cues and exogenous environmental signals, making them pivotal to overall plant growth and development. Auxin, a key phytohormone, serves as a major internal signal, orchestrating stem cell initiation, maintenance, differentiation, and environmental adaptation through intricate biosynthesis, transport, and signaling networks. This review summarizes recent progress in understanding the cellular and molecular mechanisms by which auxin guides stem cell functions in both the shoot and root apical meristems. Through these insights, we explore how plants utilize auxin-driven pathways to optimize growth in ever-changing environments.
Keyword ：
auxin auxin environmental cues environmental cues root apical meristem root apical meristem shoot apical meristem shoot apical meristem stem cell initiation stem cell initiation stem cell maintenance stem cell maintenance
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| GB/T 7714 | Ma, Jun , Wang, Yanan , Chen, Suye et al. The Central Role of Auxin in Orchestrating Apical Stem Cells in Plants [J]. | PLANT CELL AND ENVIRONMENT , 2025 , 48 (7) : 5053-5072 . |
| MLA | Ma, Jun et al. "The Central Role of Auxin in Orchestrating Apical Stem Cells in Plants" . | PLANT CELL AND ENVIRONMENT 48 . 7 (2025) : 5053-5072 . |
| APA | Ma, Jun , Wang, Yanan , Chen, Suye , Xu, Tongda . The Central Role of Auxin in Orchestrating Apical Stem Cells in Plants . | PLANT CELL AND ENVIRONMENT , 2025 , 48 (7) , 5053-5072 . |
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