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Attention,neighbors:Methyl salicylate mediates plant airborne defense

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plant Communications 2024年第1期5卷 1-3页

作者： Shan Liu Faisal Islam Jianping Chen Zongtao Sun Jian Chen International Genome Center Jiangsu UniversityZhenjiang 212013China State Key Laboratory for Managing Biotic and Chemical Threats to the quality and Safety of Agro-products Key Laboratory of Biotechnology in Plant Protection of Ministry of Agriculture and Zhejiang ProvinceInstitute of Plant VirologyNingbo UniversityNingboChina

plants have evolved to generate and release a wide array of volatile organic compounds(VOCs)when challenged by environmental stimuli such as biotic and abiotic stresses,which facilitate their reproduction,defense responses,and plant-plant communication(Karban,2021).Once emitted,some VOCs can elicit defense signaling in neighboring plants by interacting with specific receptor(s),a phenomenon referred to as airborne defense(AD)(Loreto and D’Auria,2022).

关键词： neighboring neighbor media

Cand2 inhibits CRL-mediated ubiquitination and suppresses autophagy to facilitate pathogenicity of phytopathogenic fungi

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plant Communications 2024年第2期5卷 106-121页

作者： Yunran Zhang Yunyun Wei Minghua Wu Mengyu Liu Shuang Liang Xueming Zhu Xiaohong Liu Fucheng Lin State Key Laboratory for Managing Biotic and Chemical Threats to the quality and Safety of Agro-products Institute of BiotechnologyZhejiang UniversityHangzhou 310058China Hainan Institute Zhejiang UniversitySanya 572025China State Key Laboratory for Managing Biotic and Chemical Threats to the quality and Safety of Agro-products Institute of Plant Protection and MicrobiologyZhejiang Academy of Agricultural SciencesHangzhou 310021China College of Biology and Environmental Engineering Zhejiang Shuren UniversityHangzhou 310015China

The ubiquitin–proteasome system and the autophagy system are the two primary mechanisms used by eukaryotes to maintain protein homeostasis,and both are closely related to the pathogenicity of the rice blast *** this research,we identified MoCand2 as an inhibitor of ubiquitination in Magnaporthe *** this role,MoCand2 participates in the regulation of autophagy and ***-cifically,we found that deletion of MoCand2 increased the ubiquitination level in ***,whereas overexpression of MoCand2 inhibited the accumulation of ubiquitinated *** analyses showed that MoCand2 is a subunit of Cullin-RING ligases(CRLs).It suppresses ubiquitination by blocking the assembly of CRLs and downregulating the expression of key CRL *** research indi-cated that MoCand2 regulates autophagy through ***2 knockout led to over-ubiquitination and over-degradation of MoTor,and we confirmed that MoTor content was negatively correlated with autophagy *** addition,MoCand2 knockout accelerated the K63 ubiquitination of MoAtg6 and strengthened the assembly and activity of the phosphatidylinositol-3-kinase class 3 complex,thus enhancing *** ubiquitination and autophagy in DMocand2 resulted in defects in growth,conidiation,stress resistance,and ***,sequence alignment and functional an-alyses in other phytopathogenic fungi confirmed the high conservation of fungal *** research thus reveals a novel mechanism by which ubiquitination regulates autophagy and pathogenicity in phyto-pathogenic fungi.

关键词： Magnaporthe oryzae autophagy ubiquitination pathogenicity regulation mechanism phytopatho-genic fungi

The OsBZR1-OsSPX1/2 module fine-tunes the growth-immunity trade-off in adaptation to phosphate availability in rice

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Molecular plant 2024年第2期17卷 258-276页

作者： Yuqing He Yao Zhao Jitao Hu Lanlan Wang Linying Li Xueying Zhang Zhongjing Zhou Lili Chen Hua Wangl Jiaoyu Wang Gaojie Hong State Key Laboratory for Managing Biotic and Chemical Threats to the quality and Safety of Agro-products Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang ProvinceInstitute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou 310021P.R.China Key Laboratory of Traceability for Agricultural Genetically Modified Organisms Ministry of Agriculture and Rural AffairsHangzhou 310021P.R.China College of Life Sciences Zhejiang Sci-Tech UniversityHangzhou 310018P.R.China State Key Laboratory for Managing Biotic and Chemical Threats to the Qualty and Safety of Agro-products Zhejang Academy of Agricultural SciencesHangzhou 310021P.R.China State Key Laboratory for Managing Biotic and Chemical Threats to the quality and Safety of Agro-products Key Labory of Biotechnology in Plant Protection of MOA of China and Zhejiang ProvinceInstitute of Plant Protection and MicrobiologyZhejiang Academy of Agricultural SciencesHangzhou 310021P.R.China

The growth-promoting hormones brassinosteroids(BRs)and their key signaling component BZR1 play a vital role in balancing normal growth and defense ***,we discovered that BRs and OsBZR1 up-regulated sakuranetin accumulation and conferred basal defense against Magnaporthe oryzae infection under normal *** shortages,including phosphate(Pi)deficiency,potentially disrupt this growth-defense ***1 and OsSPX2 have been reported to sense Pi concentration and interact with the Pi signal mediator OsPHR2,thus regulating Pi starvation *** this study,we discovered that OsSPX1/2 interacts with OsBZR1 in both Pi-sufficient and Pi-deficient conditions,inhibit-ing BR-responsive *** Pi is sufficient,OsSPX1/2 is captured by OsPHR2,enabling most of OsBzR1 to promote plant growth and maintain basal *** response to Pi starvation,more OsSPX1/2 is released from OsPHR2 to inhibit OsBZR1 activity,resulting in slower ***,our study reveals that the OsBZR1-SPX1/2 module balances the plant growth-immunity trade-off in *** Y.,Zhao Y.,Hu J.,Wang L.,Li L.,Zhang X.,Zhou Z.,Chen L.,Wang H.,Wang J.,and Hong G.(2024).The OsBZR1-OsSPX1/2 module fine-tunes the growth-immunity trade-off in adaptation to phosphate availability in esponse to Pi availability.

关键词： immunity maintain adaptation

WRKY33 negatively regulates anthocyanin biosynthesis and cooperates with PHR1 to mediate acclimation to phosphate starvation

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plant Communications 2024年第5期5卷 134-147页

作者： Han Tao Fei Gao Linying Li Yuqing He Xueying Zhang Mengyu Wang Jia Wei Yao Zhao Chi Zhang Qiaomei Wang Gaojie Hong State Key Laboratory for Managing Biotic and Chemical Threats to the quality and Safety of Agro-products Key Laboratory of Biotechnology in Plant Protection of the MOA of China and Zhejiang ProvinceInstitute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou 310021China State Key Laboratory of Subtropical Silviculture Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese MedicineZhejiang A&F UniversityHangzhou 311300China Department of Horticulture College of Agriculture and BiotechnologyZhejiang UniversityKey Laboratory of Horticultural Plant GrowthDevelopment and Quality ImprovementMinistry of AgricultureHangzhouZhejiangChina Institute of Sericulture and Tea Zhejiang Academy of Agricultural SciencesHangzhou 310000China

Anthocyanin accumulation is acknowledged as a phenotypic indicator of phosphate(Pi)***,negative regulators of this process and their molecular mechanisms remain largely *** this study,we demonstrate that WRKY33 acts as a negative regulator of phosphorus-status-dependent anthocyanin ***33 regulates the expression of the gene encoding dihydroﬂavonol 4-reductase(DFR),a rate-limiting enzyme in anthocyanin production,both directly and ***33 binds directly to the DFR promoter to repress its expression and also interferes with the MBW complex through interacting with PAP1 to indirectly inﬂuence DFR transcriptional ***�Pi conditions,PHR1 interacts with WRKY33,and the protein level of WRKY33 decreases;the repression of DFR expression by WRKY33 is thus attenuated,leading to anthocyanin accumulation in *** genetic and biochemical assays suggest that PHR1 is also involved in regulating factors that affect WRKY33 protein *** together,ourfindings reveal that Pi starvation represses WRKY33,a repressor of anthocyanin biosynthesis,tofinely tune anthocyanin ***‘‘double-negative logic’’regulation of phosphorus-status-dependent anthocyanin biosynthesis is required for the mainte-nance of plant metabolic homeostasis during acclimation to Pi starvation.

关键词： WRKY33 phosphate signaling PHR1 Arabidopsis thaliana anthocyanins

An integrated transcriptome and proteomic investigation of the stress responses of VBNC state Salmonella Enteritidis triggered by sodium hypochlorite

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Food Science and Human Wellness 2024年

作者： Wen Wang Wensi Wang Zhengkai Yi Jiele Ma Wenfu Hou Yingping Xiao Hua Yang Hongxun Wang Xingning Xiao State Key Laboratory for Managing Biotic and Chemical Threats to the quality and Safety of Agro-products， MOA Laboratory of quality & Safety Risk Assessment for Agro-products (Hangzhou)， Institute of Agro-Product Safety and Nutrition， Zhejiang Academy of Agricultural Sciences College of Food Science and Engineering， Wuhan Polytechnic University

Viable but non-culturable （VBNC） bacteria after chlorination disinfection pose a considerable threat to the public health and environment. The current work aimed to uncover the stress adaptation mechanisms of VBNC S. Enteritidis to sodium hypochlorite. In this study， we investigated the morphology， gene expressions and proteomic profile in VBNC S. Enteritidis. It demonstrated that 109cells mL-1of bacteria could transition into the VBNC state after exposure to 50 mg L-1chlorine for 2.5 h. The VBNC state cells exhibited cellular membrane impairment， decreased size， and intracellular ATP depletion compared to the culturable cells. In the VBNC state cells， there was a significant increase in intracellular reactive oxygen species （ROS） levels and NAD+/NADH ratios. This observation suggested an imbalance in the intracellular redox status of the VBNC bacteria. Transcriptome and proteomic analysis revealed significant upregulation of the resistance-nodulation-division （RND） efflux systems （arcA， tolC， ramA）， oxidative stress response genes （soxR， trxA， grxB）， DNA repair genes （lexA， radA， mutH， mutL）， and virulence factor genes （sseA， sseL， eutS， and eutN）. Our findings indicated that it is important to formulate disinfection protocols that are specifically designed for food processing plants and healthcare facilities， focusing on implementing a more thorough disinfection method to effectively eradicate VBNC cells.

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The processed C-terminus of AvrRps4 effector suppresses plant immunity via targeting multiple WRKYs

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Journal of Integrative plant Biology 2024年第8期66卷 1769-1787页

作者： Quang-Minh Nguyen Arya Bagus Boedi Iswanto Hobin Kang Jiyun Moon Kieu Anh Thi Phan Geon Hui Son Mi Chung Suh Eui-Hwan Chung Walter Gassmann Sang Hee Kim division of Applied Life Science(BK21 Four Program) Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinju 52828Korea Department of Life Science Sogang UniversitySeoul 04107Korea Department of plant Biotechnology Korea UniversitySeoul 02841Korea division of plant Science and Technology Christopher S.Bond Life Sciences Center and Interdisciplinary Plant GroupUniversity of MissouriColumbiaMissouri 65211USA division of Life Science and Research Institute of Molecular Alchemy Gyeongsang National UniversityJinju 52828Korea

Pathogens generate and secrete effector proteins to the host plant cells during pathogenesis to promote virulence and *** the plant carries resistance(R)proteins that recognize pathogen effectors,effector-triggered immunity(ETI)is activated,resulting in a robust immune response and hypersensitive response(HR).The bipartite effector AvrRps4 from Pseudomonas syringae *** has been well studied in terms of avirulence *** planta,AvrRps4 is processed into two *** Cterminal fragment of AvrRps4(AvrRps4^(C))induces HR in turnip and is recognized by the paired resistance proteins AtRRS1/AtRPS4 in ***,we show that AvrRps4^(C)targets a group of Arabidopsis WRKY,including WRKY46,WRKY53,WRKY54,and WRKY70,to induce its virulence ***,AvrRps4^(C)suppresses the general binding and transcriptional activities of immune-positive regulator WRKY54 and WRKY54-mediated ***4^(C)interferes with WRKY54's binding activity to target gene SARD1 in vitro,suggesting WRKY54 is sequestered from the SARD1 promoter by AvrRps4^(C).Through the interaction of Avr Rps4^(C)with four WRKYs,AvrRps4 enhances the formation of homo-/heterotypic complexes of four WRKYs and sequesters them in the cytoplasm,thus inhibiting their function in plant ***,our results provide a detailed virulence mechanism of AvrRps4 through its C-terminus.

关键词： AvrRps4 bacterial effector effector-triggered immunity immune response suppression transcription factor WRKY

维普期刊数据库

SPATULA as a Versatile Tool in plant:The Progress and Perspectives of SPATULA(SPT)Transcriptional Factor

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Phyton-International Journal of Experimental Botany 2024年第3期93卷 517-531页

作者： Lei Liang Xiangyang Hu Shanghai Key Laboratory of Bio-Energy Crops Research Center for Natural ProductsPlant Science CenterSchool of Life SciencesShanghai UniversityShanghai200444China

With the rapid development of modern molecular biology and bioinformatics,many studies have proved that transcription factors play an important role in regulating the growth and development of ***(SPT)belongs to the bHLH transcription family and participates in many processes of regulating plant growth and *** review systemically summarizes the multiple roles of SPT in plant growth,development,and stress response,including seed germination,ﬂowering,leaf size,carpel development,and root elongation,which is helpful for us to better understand the functions of SPT.

关键词： SPT bHLH plant growth plant development Arabidopsis thaliana

Rapid characterization of non-volatile phenolic compounds reveals the reliable chemical markers for authentication of traditional Chinese medicine Xiang-ru among confusing Elsholtzia species

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Chinese Journal of Natural Medicines 2024年第4期22卷 375-384页

作者： ZENG Zhen ZHANG Chen HU Jiadong WANG Feiyan WU Ziding WANG Jing ZHANG Jun YANG Shuda CHEN Junfeng LI Mingming TONG Qi QIU Shi CHEN Wansheng The SATCM Key Laboratory for New Resources&quality Evaluation of Chinese Medicine Institute of Chinese Materia MedicaShanghai University of Traditional Chinese MedicineShanghai 201203China Department of Pharmacy Second Affiliated Hospital of Navy Medical UniversityShanghai 200003China Kunming plant Classification Biotechnology Co. Ltd.Kunming 650500China School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural products Kunming Medical UniversityKunming 650500China State Key Laboratory for quality Ensurance and Sustainable Use of Dao-di Herbs Beijing100700China

The aerial parts of Mosla chinensis *** Mosla chinensis cv.'Jiangxiangru'(MCJ)are widely utilized in traditional Chinese medicine(TCM),known collectively as ***,due to clinical effectiveness concerns and frequent misidentification,the original plants have increasingly been substituted by various species within the genera Elsholtzia and *** challenge in distinguishing between these genera arises from their similar morphological and metabolic *** address this issue,our study introduced a rapid method for metabolic characterization,employing high-resolution mass spectrometry-based *** detailed biosynthetic and chemometric analyses,we pinpointed five phenolic compounds—salviaflaside,cynaroside,scutellarein-7-O-D-glucoside,rutin,and vicenin-2—among 203 identified compounds,as reliable chemical markers for distinguishing Xiang-ru from closely related Elsholtzia *** methodology holds promise for broad application in the analysis of plant aerial parts,especially in verifying the authenticity of aromatic traditional medicinal *** findings underscore the importance of non-volatile compounds as dependable chemical markers in the authentication process of aromatic traditional medicinal plants.

关键词： Genus Elsholtzia Genus Mosla Traditional Chinese medicine Xiang-ru Non-volatile phenolic compounds Liquid chromatography-mass spectrometry

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Residue behaviors and dietary risk assessment of dinotefuran and its metabolites in Lycium barbarum from farm to fork

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Food Science and Human Wellness 2024年

作者： Ouli Xiao Minmin Li Jieyin Chen Ran Wang Xiaofeng Dai Zhiqiang Kong State Key Laboratory for Biology of plant Diseases and Insect Pests， Institute of plant Protection， Chinese Academy of Agricultural Sciences Western Agricultural Research Center， Chinese Academy of Agricultural Sciences Key Laboratory of Agro-products quality and Safety Control in Storage and Transport Process， Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology， Chinese Academy of Agricultural Sciences Institute of plant Protection， Beijing Academy of Agriculture and Forestry Sciences

Lycium barbarum， known as wolfberry or goji berry， is consumed by humans as a medicine and a food homology product. Conventionally grown wolfberry is often treated extensively with pesticides， which could pose a hazard to humans. Here， the degradation dynamics of dinotefuran and its two metabolites (UF and DN)， during wolfberry cultivation and processing was investigated. The half-life (T1/2) of dinotefuran was 11.36 d and 9.12 d， respectively， under the recommended dosage and double the recommended dosage. During the oven and sun drying processes， processing factors (PFs) of dinotefuran were 1.07 - 1.34， implying the enrichment of pesticide residues. Decoction process made the removal rate of dinotefuran reach 87.48%， which is higher than that of the brewing process (14.7%)， while dinotefuran remained in the wine with high ethanol content in the alcohol soaking process. The hazard quotient (HQ) of dinotefuran， as determined via dietary risk assessment combined with PFs， was gastric (5.45% - 86.72%) > oral (23.18%) via in vitro simulated digestive system. These findings provide scientific evidence for reasonable application and risk assessment of dinotefuran residues in wolfberry.

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