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A war on the cell wall

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Molecular Plant 2022年第2期15卷 219-221页

作者： Jian Chen Huan Chen fengquan liu Zheng Qing Fu International Genome Center Jiangsu UniversityZhenjiang 212013China Institute of Plant Protection Jiangsu Academy of Agricultural SciencesNanjingJiangsu 210014China Department of Biological Sciences University of South CarolinaColumbiaSC 29208USA

Plant diseases caused by a wide variety of pathogens have had tremendous negative impacts on human *** example,the oomycete pathogen Phytophthora infestans,which causes severe late blight disease on potatoes,triggered the infamous Irish Potato *** prevent such tragedies from happening again and to reduce crop losses,it is imperative to implement effective disease control and management strategies.A deeper and more comprehensive understanding of how plant pathogens cause disease is critical for developing novel and effective strate-gies for controlling plant diseases.

关键词： blight comprehensive controlling

Evaluation of suitable reference genes for normalization of quantitative real-time PCR analysis in rice plants under Xanthomonas oryzae ***--infection and melatonin supplementation

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Food Production, Processing and Nutrition 2020年第1期2卷 207-216页

作者： Xian Chen Pedro Laborda Yan Dong fengquan liu Institute of Plant Protection Jiangsu Key Laboratory for Food Quality and Safety–State Key Laboratory Cultivation Base of Ministry of Science and TechnologyJiangsu Academy of Agricultural SciencesNanjing 210014PR China State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Zhejiang Academy of Agricultural SciencesHangzhou 310021PR China School of Life Sciences Nantong UniversityNantong 226019PR China

Exogenous melatonin(MT)was found to be an interesting tool for enhancing the resistance of rice to ***(Xoo)-caused bacterial blight(BB).However,the accurate comparison of the expression levels across samples was a challenging *** this work,the stability of 10 common used housekeeping genes under Xoo-infection and MT supplementation in rice was analyzed using quantitative real-time PCR(qRT-PCR),and algorithms geNorm,NormFinder and *** results indicated that most reference genes remained stable in Xoo-infected rice plants,while a number of reference genes were affected by MT *** all studied genes,the transcript levels of 18S(18S ribosomal RNA)and UBC(Ubiquitin-conjugating enzyme E2)remained unaltered by Xoo infection,while UBC and UBQ5(Ubiquitin 5)were the most stable genes when examining simultaneous Xoo-infection and MT supplementation,demonstrating that UBC is a suitable reference gene for qRT-PCR data normalization in rice under Xoo-infection and MT supplementation.

关键词： Rice Xanthomonas oryzae pv.oryzae Melatonin qRT-PCR Reference genes

Distinct phosphorylation optimizes pathogen-induced PA and ROs bursts

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Molecular Plant 2024年第4期17卷 525-527页

作者： Kaihuai Lil Ruize Zhang Yong Wang fengquan liu Zheng Qing Fu Department of Plant Pathology College of AgricultureGuizhou UniversityGuiyang 550025China Department of Biological Sciences University of South CarolinaColumbiaSC29208USA Institute of Plant Protection Jiangsu Academy of Agricultural SciencesNanjingJiangsu 210014China

Phospholipids hold a multifaceted function in cellular *** primary function of phospholipids is to serve as essential building blocks of cell membranes,which gives cells crucial structural support and facilitates cellular *** that,phospholipids also act as key signaling molecules that coordinate vital cellular processes such as organismal development,homeostasis,and adaptation to environmental *** being the smallest and simplest phospholipid,phosphatidic acid(PA)plays a crucial role as a metabolic intermediate and second messenger.

关键词： homeostasis lipids smallest

H_(2)O_(2) sulfenylates CHE to activate systemic salicylic acid synthesis and ignite systemic acquired resistance

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Molecular Plant 2024年第12期17卷 1794-1796页

作者： Kaihuai Li Cheng Li Daowen Wang fengquan liu Zheng Qing Fu Department of Plant Pathology College of AgricultureGuizhou UniversityGuiyang 550025China State Key Laboratory of Wheat and Maize Crop Science College of Agronomy and Center for Crop Genome EngineeringHenan Agricultural UniversityLongzi Lake CampusZhengzhou 450046China Department of Biological Sciences University of South CarolinaColumbiaSC 29208USA

Reactive oxygen species(ROS),generated within plant cells during metabolic processes or in the plant apoplast when triggered by external microorganisms,comprise a group of unstable molecules that include superoxide anions,hydrogen peroxide(H_(2)O_(2)),hydroxyl radicals,and singlet oxygen and are highly reactive with other substances(Waszczak et al.,2018).In the realm of plant biology,H_(2)O_(2) stands out as a vital ROS,instrumental in overseeing numerous developmental processes and stress responses.

关键词： synthesis singlet unstable

The Xanthomonas typeⅢeffector Xop AP prevents stomatal closure by interfering with vacuolar acidification

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Journal of Integrative Plant Biology 2022年第10期64卷 1994-2008页

作者： Longyu liu Ying Li Zhengyin Xu Huan Chen Jingyi Zhang Brittany Manion fengquan liu Lifang Zou Zheng Qing Fu Gongyou Chen State Key Laboratory of Microbial Metabolism/Shanghai Collaborative Innovation Center of Agri‐Seeds School of Agriculture and BiologyShanghai Jiao Tong UniversityShanghai 200240China Department of Biological Sciences University of South CarolinaColumbia 29208USA Institute of Plant Protection Jiangsu Academy of Agricultural SciencesNanjing 210014China

Plant stomata close rapidly in response to a rise in the plant hormone abscisic acid(ABA)or salicylic acid(SA)and after recognition of pathogenassociated molecular patterns(PAMPs).Stomatal closure is the result of vacuolar convolution,ion efflux,and changes in turgor pressure in guard *** bacteria secrete typeⅢeffectors(T3Es)that interfere with plant defense mechanisms,causing severe plant disease ***,we show that the virulence and infection of Xanthomonas oryzae ***(Xoc),which is the causal agent of rice bacterial leaf streak disease,drastically increased in transgenic rice(Oryza sativa L.)plants overexpressing the Xoc T3E gene Xop AP,which encodes a protein annotated as a *** discovered that Xop AP binds to phosphatidylinositol 3,5-bisphosphate(Ptd Ins(3,5)P_(2)),a memb rane phospholipid that functions in p H control in lysosomes,membrane dynamics,and protein *** AP inhibited the acidification of vacuoles by competing with vacuolar H^(+)-pyrophosphatase(V-PPase)for binding to Ptd Ins(3,5)P_(2),leading to stomatal *** rice overexpressing Xop AP also showed inhibition of stomatal closure when challenged by Xoc infection and treatment with the PAMP ***,Xop AP suppressed flg22-induced gene expression,reactive oxygen species burst and callose deposition in host plants,demonstrating that Xop AP subverts PAMP-triggered immunity during Xoc *** together,these findings demonstrate that Xop AP overcomes stomatal immunity in plants by binding to lipids.

关键词： Ptd Ins(3 5)P2 stomatal closure typeⅢeffector vacuole acidification Xanthomonas Xop AP

Connecting the Dots:A New and Complete Salicylic Acid Biosynthesis Pathway

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Molecular Plant 2019年第12期12卷 1539-1541页

作者： Huan Chen Michael Clinton Guang Qi Daowen Wang fengquan liu Zheng Qing Fu Institute of Plant Protection Jiangsu Academy of Agricultural SciencesJiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and TechnologyNanjing 210014China Department of Biological Sciences University of South CarolinaColumbiaSC 29208USA State Key Laboratory of Wheat and Maize Crop Science and College of Agronomy Henan Agricultural UniversityZhengzhou 450002China

Salicylic acid(SA) or 2-hydroxybenzoic acid,better known as the active ingredient in aspirin,is a phenolic plant hormone that plays an essential role in plant defense against biotrophic and semi-biotrophic pathogens(F... 详细信息

关键词： Sal phenolic semi

Pandemonium Breaks Out:Disruption of Salicylic Acid-Mediated Defense by Plant Pathogens

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Molecular Plant 2018年第12期11卷 1427-1439页

作者： Guang Qi Jian Chen Ming Chang Huan Chen Katherine Hall John Korin fengquan liu Daowen Wang Zheng Qing Fu State Key Laboratory of Wheat and Maize Crop Science and College of Agronomy Henan Agricultural University Zhengzhou 450002 China lnstitute of Plant Protection Jiangsu Academy of Agricultural Sciences Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology Nanjing 210014 China Department of Biological Sciences University of South Carolina Columbia SC 29208USA These authors contributed equally to this article

Salicylic acid (SA) or 2-hydroxybenoic acid is a phenolic plant hormone that plays an essential role in plant defense against biotrophic and semi-biotrophic pathogens. In Arabidopsis, SA is synthesized from chorismate in the chloroplast through the ICS1 (isochorismate synthase I) pathway during pathogen infectioru The transcription co-activator NPR1 (Non-Expresser of Pathogenesis-Related Gene 1), as the master regulator of SA signaling, interacts with transcription factors to induce the expression of anti-microbial PR (Pathogenesis-Related) genes. To establish successful in fections, plant bacterial, oomycete, fun gal, and viral pathogens have evolved at least three major strategies to disrupt SA-mediated defense? The first strategy is to reduce SA accumulation directly by converting SA into its inactive derivatives. The second strategy is to interrupt SA biosynthesis by targeting the ICS1 pathway. In the third major strategy, plant pathogens deploy different mechanisms to interfere with SA downstream signaling. The wide array of strategies deployed by plant pathogens highlights the crucial role of disruption of SA-mediated plant defense in plant pathogenesis. A deeper understanding of this topic will greatly expand our knowledge of how plant pathogens cause diseases and consequently pave the way for the development of more effective ways to corn trol these diseases.

关键词： salicylic acid NPR1 PR proteins effectors toxin VIGS

ESR Study of the Reaction Between Cp_2Ti(CO)_2 and Cp_2TiBr_2

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Chemical Research in Chinese Universities 1991年第1期7卷 47-50页

作者： Wang Jitao, liu fengquan Bai Lingjun (Department of Chemistry, Nankai University, Tianjin)

Introduction Floriani and Fachinetti have proposed that （Cp;TiCl）;can be prepared by the reaction between Cp;TiCl;and Cp;Ti（CO）;. We extended the method to the preparation of （Cp;TiBr）;and characterized an activ... 详细信息

关键词： ESR Simulate Hyperfine structure

Oomycete Nudix effectors display WY-Nudix conformation and mRNA decapping activity

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Journal of Integrative Plant Biology 2024年第8期66卷 1548-1552页

作者： Baodian Guo Qinli Hu Bangwei Wang Deqiang Yao Haonan Wang Guanghui Kong Chenyang Han Suomeng Dong fengquan liu Weiman Xing Yuanchao Wang Department of Plant Pathology Nanjing Agricultural UniversityNanjing 210095China Institute of Plant Protection Jiangsu Academy of Agricultural SciencesNanjing 210014China Department of Molecular Genetics University of Texas Southwestern Medical CenterDallasTexas 75390USA Institute of Aging&Tissue Regeneration Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200127China College of Horticulture Nanjing Agricultural UniversityNanjing 210095China College of Agriculture Guizhou UniversityGuiyang 550025China College of Life Sciences Shanghai Normal UniversityShanghai 200234China

Phytopathogens secrete effectors to promote colonization of their host *** effectors modulate host immune responses by interfering with various pathways,but little is known about their biochemical *** recent reports indicate that some phytopathogen effectors have Nudix hydrolase activity,including Avr3b from Phytophthora sojae(Dong et al.,2011),AvrM14 from Melampsora lini (McCombe et al.,2023),and RipN from Ralstonia solanacearum (Sun et al.,2019).

关键词： plants Phytophthora biochemical