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Molecular Plant 2016年第7期9卷 1078-1081页

作者： Li, Guotian chern, Mawsheng Jain, Rashmi Martin, Joel A. Schackwitz, Wendy S. Jiang, Liangrong Vega-Sanchez, Miguel E. Lipzen, Anna M. Barry, Kerrie W. Schmutz, Jeremy ronald, pamela c. Univ calif Davis Dept Plant Pathol Davis CA 95616 USA Univ calif Davis Genome Ctr Davis CA 95616 USA Lawrence Berkeley Natl Lab Feedstocks Div Joint BioEnergy Inst Berkeley CA 94720 USA US DOE Joint Genome Inst Walnut Creek CA 94598 USA Xiamen Univ Sch Life Sci Xiamen 361102 Peoples R China HudsonAlpha Inst Biotechnol Huntsville AL 35806 USA Monsanto co Chesterfield Village Campus Chesterfield MO 63017 USA

Fast-neutron （FN） irradiation has been used to create mutagen- ized collections of many plant species （Bolon et al., 2014）, FN- induced mutagenesis has clear advantages： it is an efficient means of saturating the genome, and it does not involve time- consuming plant transformation or tissue culture. In rice, most mutant collections, although highly valuable, were generated us- ing either T-DNA insertion or transposon tagging approaches that often induce mutations unlinked to the insertion and complicating analysis （Wang et al., 2013）. Another disadvantage of some of these collections is that they were created in rice varieties that are photoperiod-sensitive and often have long generation times.

关键词： mutagenesis genome valuable

Dissect the rice immune system using a whole-genome sequenced mutant population

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Dissect the rice immune system using a whole-genome sequence...

Strong Suppression of Systemic Acquired Resistance in Arabidopsis by NRR is Dependent on its Ability to Interact with NPRland its Putative Repression Domain

中国植物病理学会2019年学术年会

作者： Li Guotian Sha Gan Jain Rashmi Jenkins Jerry Shu Shengqiang chern Mawsheng copetti Dario Xing Feng Xie Weibo Wing Rod A Schmutz Jeremy ronald pamela c State Key Laboratory of Agricultural Microbiology and college of Plant Science and Technology Huazhong Agricultural University Department of Plant Pathology University of California Joint BioEnergy Institute Lawrence Berkeley National Laboratory U.S.Department of Energy Joint Genome Institute Arizona Genomics Institute School of Plant SciencesUniversity of Arizona National Key Laboratory of crop Genetic Improvement National Center of Plant Gene ResearchHuazhong Agricultural University HudsonAlpha Institute for Biotechnology

Rice provides food for more than half of the world’s population and also serves as a model for studies of other monocotyledonous ***,we report the de novo genome sequencing and analysis of an early flowering Geng/japonica variety KitaakeX,which completes its life cycle in 9 *** KitaakeX sequence assembly contains 377.6 Mb,consisting of 33 scaffolds（476 contigs） with a contig N50 of 1.4 *** the assembly are detailed gene annotations of 35 594 protein coding *** high-quality genome of the model rice plant KitaakeX will accelerate rice functional *** further facilitate rice research,we generated and sequenced a fast-neutron-induced mutant population in *** sequenced 1 504 mutant lines at 45-fold coverage and identified 91 513 mutations affecting 32 307 genes,i.e.,58% of all rice *** detected an average of 61 mutations per *** types include single-base substitutions,deletions,insertions,inversions,translocations,and tandem *** observed a high proportion of loss-of-function *** facilitate public access to this genetic resource,we established an open access database called KitBase that provides access to sequence data and seed *** have screened this mutant population for lines altered in plant immunity and identified multiple mutant *** on these mutants will be presented.

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Molecular Plant 2008年第3期1卷 552-559页

作者： Mawsheng chern Patrick E. canlas pamela c. ronald Department of Plant Pathology University of California Davis CA 95616 USA

Systemic Acquired Resistance （SAR） in plants confers lasting broad-spectrum resistance to pathogens and requires the phytohormone salicylic acid （SA）. Arabidopsis NPR1/NIM1 is a key regulator of the SAR response. Studies attempting to reveal the function of NPR1 and how it mediates SA signaling have led to isolation of two classes of proteins that interact with NPRI＂ the first class includes rice NRR, Arabidopsis NIMIN1, NIMIN2, and NIMIN3, and tobacco NIMIN2-1ike proteins; the second class belongs to TGA transcription factors. We have previously shown that overexpression of N RR in rice suppresses both basal and Xa21-mediated resistance. In order to test whether NRR affects SA-induced, NPRl-mediated SAR, we have transformed Arabidopsis with the rice NRR gene and tested its effects on the defense response. Expression of NRR in Arabidopsis results in suppression of PR gene induction by SAR inducer and resistance to pathogens. These phenotypes are even more severe than those of the nprl-1 mutant. The ability of NRR to suppress PR gene induction and disease resistance is correlated with its ability to bind to NPR1 because two point mutations in NRR, which reduce NPR1 binding, fail to suppress NPR1. In contrast, wild-type and a mutant NRR, which still binds to NPR1 strongly, retain the ability to suppress the SAR response. Replacing the c-terminal 79 amino acids of NRR with the VP16 activation domain turns the fusion protein into a transcriptional co-activator. These results indicate that NRR binds to NPR1 in vivo in a protein complex to inhibit transcriptional activation of PR genes and that NRR contains a transcription repression domain for active repression.

关键词： NRR NPR1 SA SAR disease resistance.

construction of a Rice Glycosyltransferase Phylogenomic Database and Identification of Rice-Diverged Glycosyltransferases

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Molecular Plant 2008年第5期1卷 858-877页

作者： Pei-Jian cao Laura E. Bartley Ki-Hong Jung pamela c. ronald Department of Plant Pathology University of California Davis CA 95616 and the Joint BioEnergy Institute Emeryville CA 94710 USA Institute of Bioinformatics Zhejiang University Hangzhou Zhejiang 310029 China

Glycosyltransferases （GTs; Ec 2.4.x.y） constitute a large group of enzymes that form glycosidic bonds through transfer of sugars from activated donor molecules to acceptor molecules. GTs are critical to the biosynthesis of plant cell walls, among other diverse functions. Based on the carbohydrate-Active enZymes （cAZy） database and sequence ***, we have identified 609 potential GT genes （loci） corresponding to 769 transcripts （gene models） in rice （Oryza sativa）, the reference monocotyledonous species. Using domain composition and sequence similarity, these rice GTs were classified into 40 cAZy families plus an additional unknown class. We found that two Pfam domains of unknown function, PF04577 and PF04646, are associated with GT families GT61 and GT31, respectively. To facilitate functional analysis of this important and large gene family, we created a phylogenomic Rice GT Database （http：//ricephylogenomics. ***/cellwalls/gtJ）. Through the database, several classes of functional genomic data, including mutant lines and gene expression data, can be displayed for each rice GT in the context of a phylogenetic tree, allowing for comparative analysis both within and between GT families. comprehensive digital expression analysis of public gene expression data revealed that most （-80%） rice GTs are expressed. Based on analysis with Inparanoid, we identified 282 ‘rice-diverged＇ GTs that lack orthologs in sequenced dicots （Arabidopsis thaliana, Populus tricocarpa, Medicago truncatula, and Ricinus communis）. combining these analyses, we identified 33 rice-diverged GT genes （45 gene models） that are highly expressed in above-ground, vegetative tissues. From the literature and this analysis, 21 of these loci are excellent targets for functional examination toward understanding and manipulating grass cell wall qualities. Study of the remainder may reveal aspects of hormone and protein metabolism that are critical for rice biology. This list of 33 genes a

关键词： glycosyltransferases GT phylogenetic tree orthologs expression pattern mutant lines phylogenomic database rice cell wall.

Recent Advances in Dissecting Stress-Regulatory crosstalk in Rice

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Molecular Plant 2013年第2期6卷 250-260页

作者： Rita Sharma David De Vleesschauwer Manoj K. Sharma pamela c. ronald Department of Plant Pathology and Genome center University of California Davis CA 95616 USA Joint BioEnergy Institute Emeryville CA 94710 USA Laboratory of Phytopathology Faculty of Bioscience Engineering Ghent University B-9000 Ghent Belgium Department of Plant Molecular Systems Biotechnology and crop Biotech Institute Kyung Hee University Yongin 446-701 Korea

Biotic and abiotic stresses impose a serious limitation on crop productivity worldwide. Prior or simultaneous exposure to one type of stress often affects the plant response to other stresses, indicating extensive overlap and cross-talk between stress-response signaling pathways. Systems biology approaches that integrate large genomic and prot-eomic data sets have facilitated identification of candidate genes that govern this stress-regulatory crosstalk. Recently, we constructed a yeast two-hybrid map around three rice proteins that control the response to biotic and abiotic stresses, namely the immune receptor XA21, which confers resistance to the Gram-negative bacterium, Xanthomonas oryzae pv. oryzae; NH1, the rice ortholog of NPR1, a key regulator of systemic acquired resistance; and the ethylene-responsive transcription factor, SUBIA, which confers tolerance to submergence stress. These studies coupled with transcriptional profiling and co-expression analyses identified a suite of proteins that are positioned at the interface of biotic and abiotic stress responses, including mitogen-activated protein kinase 5 （OsMPK5）, wall-associated kinase 25 （WAK25）, sucrose non-fermenting-l-related protein kinase-1 （SnRK1）, SUBIA binding protein 23 （SAB23）, and several WRKY family tran- scription factors. Emerging evidence suggests that these genes orchestrate crosstalk between biotic and abiotic stresses through a variety of mechanisms, including regulation of cellular energy homeostasis and modification of synergistic and/or antagonistic interactions between the stress hormones salicylic acid, ethylene, jasmonic acid, and abscisic acid.

关键词： abiotic biotic crosstalk defense response hormone systems biology stress.

Rice Protein Tagging Project:A call for International collaborations on Genome-wide In-Locus Tagging of Rice Proteins

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Molecular Plant 2020年第12期13卷 1663-1665页

作者： Yuming Lu pamela c.ronald Bin Han Jiayang Li Jian-Kang Zhu Shanghai center for Plant Stress Biology CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghaiChina Department of Plant Pathology and the Genome center University of CaliforniaDavisCAUSA National center for Gene Research CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghaiChina State Key Laboratory of Plant Genomics and National Center for Plant Gene Research(Beijing)Institute of Genetics and Developmental BiologyInnovation Academy for Seed DesignChinese Academy of SciencesBeijingChina Department of Horticulture and Landscape Architecture Purdue UniversityWest LafayetteINUSA

In September 1997,the International Rice Genome Sequencing Project was *** initiative pooled the resources of ten nations to obtain the first complete rice genome sequence,and promoted rice research and breeding into the post-genomics era(Li et al.,2018).In 2008,an internationally coordinated project named "RIcE2020" was proposed to systematically and fully characterize all rice genes,transcripts,and proteins(Zhang et al.,2008).While genes and their transcripts can be readily characterized by sequencing-and PcR-based methods,the characterization of protein dynamics including protein levels,subcellular localizations,post-transla-tional modifications,and interactions with macromolecules(e.g.,proteins,DNA,RNA,carbohydrates,and lipids)and small molecules(e.g.,metabolites and ligands)is much more challenging and usually requires antibodies that specifically recognize the protein of *** it is very difficult to systematically produce reliable antibodies for the specific recognition of individual plant proteins,a common practice is to transform a tag-fused open reading frame(ORF)of a gene to the corresponding loss-of-function mutant ***,such an ectopically expressed tagged protein may not fully reca-pitulate the properties of the endogenous protein due to the random insertion of the transgene,even when the transgene is expressed under the endogenous gene promoter.A preferred so-lution is to genetically label the coding sequence of the gene of interest,at its in vivo locus,with a sequence encoding a fluores-cent protein tag or an affinity tag such as FLAG or *** "in-locus" protein tagging,as we are naming it here,has been carried out genome-wide in yeast,caenorhabditis elegans,fly,and mammalian cultured cells,greatly facilitating the characterization of proteins in these organisms(Jiang et al.,2018).In 2017,a Genome Tagging Project was launched in mice,aiming to label every protein using a cRISPR/cas9-based "artificial spermatids"method(

关键词： breeding Genome endogenous

Effect of resistance training volume on body adiposity,metabolic risk,and inflammation in postmenopausal and older females:Systematic review and meta-analysis of randomized controlled trials

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Journal of Sport and Health Science 2024年第2期13卷 145-159页

作者： Paulo Ricardo Prado Nunes pamela castro-e-Souza Anselmo Alves de Oliveira Bruno de Freitas camilo Gislaine cristina-Souza Lucio Marques Vieira-Souza Marcelo Augusto da Silva carneiro Department of Body and Human Movement Minas Gerais State University(UEMG)37902-092 PassosMGBrazil University center of Planalto de Araxa(UNIARAXA) 38180-129 AraxaMGBrazil Physical Activity Health and Ageing Research Group(GPASE)Minas Gerais State University(UEMG)37902-092 PassosMGBrazil Exercise and Nutrition Research Group(GPEN) Minas Gerais State University(UEMG)37902-092 PassosMGBrazil Sport Sciences and Physical Exercise Study and Research Group(GEPcEEX) Minas Gerais State University(UEMG)37902-092 PassosMGBrazil Metabolism Nutrition and Exercise LaboratoryPhysical Education and Sport CenterLondrina State University(UEL)86050-070 LondrinaPRBrazil Postgraduate Program in Physical Education Federal University of Sergipe(UFS)49107-230 Sao CristovaoSEBrazil

Purpose:This meta-analytical study aimed to explore the effects of resistance training(RT) volume on body adiposity,metabolic risk,and inflammation in postmenopausal and older ***:A systematic search was performed for randomized controlled trials in PubMed,Scopus,Web of Science,and *** controlled trials with postmenopausal and older females that compared RT effects on body adiposity,metabolic risk,and inflammation with a control group(cG) were *** reviewers selected the studies,extracted the data,and performed the risk of bias and certainty of the evidence(Grading of Recommendations,Assessment,Development,and Evaluation(GRADE)) *** body and abdominal adiposity,blood lipids,glucose,and c-reactive protein were included for meta-analysis.A random-effects model,standardized mean difference(Hedges’ g),and 95% confidence interval(95%cI) were used for ***:Twenty randomized controlled trials(overall risk of bias:some concerns;GRADE:low to very low) with overweight/obese postmenopausal and older females were *** groups were divided into low-volume RT(LVRT,~44 sets/week) and high-volume RT(HVRT,~77 sets/week).Both RT groups presented improved body adiposity,metabolic risk,and inflammation when compared to ***,HVRT demonstrated higher effect sizes than LVRT for glucose(HVRT=-1.19;95%cI:-1.63 to-0.74;LVRT=-0.78;95%cI:-1.15 to-0.41) and c-reactive protein(HVRT=-1.00;95%cI:-1.32 to-0.67;LVRT=-0.34;95%cI,-0.63 to-0.04)) when compared to ***:compared to cG,HVRT protocols elicit greater improvements in metabolic risk and inflammation outcomes than LVRT in overweight/obese postmenopausal and older females.

关键词： c-reactive protein Fat mass Lipid profile Menopause Strength training

OsWRKY62 is a Negative Regulator of Basal and Xa21-Mediated Defense against Xanthomonas orvzae pv. orvzae in Rice

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Molecular Plant 2008年第3期1卷 446-458页

作者： Ying Peng Laura E. Bartley Xuewei chen christopher Dardick Mawsheng chern Randy Ruan Patrick E. canlas pamela c. ronald Department of Plant Pathology University of California Davis CA 95616 USA Present address: Monsanto corporation Davis CA 95616 USA Present address: USDA-ARS Appalachian Fruit Research Station Kearneysville WV 25430 USA

The rice Xa21 gene, which confers resistance to the bacterial pathogen Xanthomonas oryzae pv. oryzae （Xoo）, encodes a receptor-like kinase, Few components involved in transducing the Xa21-mediated defense response have yet been identified. Here, we report that XA21 binds to a WRKY transcription factor, called OsWRKY62. The OsWRKY62 gene encodes two splice variants （OsWRKY62.1 and OsWRKY62.2）. OsWRKY62.1：smGFP2 and OsWRKY62.2：smGFP2 fusion pro- teins partially localize to the nucleus. Transgenic plants overexpressing OsWRKY62.1 are compromised in basal defense and Xa21-mediated resistance to Xoo. Furthermore, overexpression of OsWRKY62.1 suppresses the activation of defenserelated genes. These results imply that OsWRKY62 functions as a negative regulator of innate immunity in rice, and serves as a critical mediator of both basal and race-specific defense responses.

关键词： rice OsWRKY62 Xa21 defense response.

Modeling the Drying Kinetics of Pigeon Pea [cajanus cajan (L.) Millspaugh]

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Open Journal of Applied Sciences 2024年第6期14卷 1425-1436页

作者： Nadia pamela Gladys Pambou-Tobi Arnaud Wenceslas Geoffroy Tamba Sompila Michel Elenga Reyes Herdenn Gampoula Gloire Horiane Louya Banzouzi Sylvia Petronille Ntsossani National Institute for Research in Engineering Sciences Innovation and Technology Brazzaville Congo National Polytechnic School Marien Ngouabi University Brazzaville Congo Pole of Excellence in Food and Nutrition Faculty of Science and Technology Marien Ngouabi University Brazzaville Congo

We set out to model the oven-drying kinetics of a legume known as pigeon pea, harvested in the Bouenza department in the south-west of the Republic of congo. The drying kinetics of pigeon peas was carried out in an oven under experimental conditions using temperatures of: 50°c, 60°c and 70°c. Seven mathematical models were used to describe pigeon pea drying. During drying, water loss was faster and shorter at 70°c [10.446 g/25 g wet weight (wwb) for 320 min (5.3 h)] compared to 50°c [10.996 g/25 g wet weight (wwb) for 520 min (8.6 h)] and 60°c [10.616 g/25 g wet weight (wwb) for 420 min (7.0 h)] where it was slower and longer. With regard to modeling, and based on the principle of choosing the right model focusing on the high value of R2 and low values of χ2 and RMSE, two models were selected, the Midili model for temperatures of 50°c and 60°c and the Henderson and Pabis model modified for temperature of 70°c showed better results. The R2, χ2 and RMSE values calculated for pigeon pea are 0.99985, 3.93404E-5 and 0.00627;0.9997, 9.245E-5 and 0.00962;0.99996, 1.56332E-5 and 0.00395 respectively at 50°c, 60°c and 70°c.

关键词： cajanus cajan Legume Kinetic Models Drying

OsSERK1 regulates rice development but not immunity to Xanthomonas oryzae pv. oryzae or Magnaporthe oryzae

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Journal of Integrative Plant Biology 2014年第12期56卷 1179-1192页

作者： Shimin Zuo Xiaogang Zhou Mawsheng chen Shilu Zhang Benjamin Schwessinger Deling Ruan can Yuan Jing Wang Xuewei chen pamela c.ronald Department of Plant Pathology and the Genome center University of California Joint Bioenergy Institute Emeryville California 94710 USA Key Laboratory of crop Genetics and Physiology of Jiangsu Province College of Agriculture Yangzhou University Key Laboratory of Plant Functional Genomics of the Ministry of Education College of Agriculture Yangzhou University Rice Research Institute Sichuan Agricultural University at Wenjiang

Somatic embryogenesis receptor kinase（SERK）proteins play pivotal roles in regulation of plant development and immunity. The rice genome contains two SERK genes,OsSerk1 and OsSerk2. We previously demonstrated that OsSerk2 is required for rice Xa21-mediated resistance to Xanthomonas oryzae pv. oryzae（Xoo） and for normal development. Here we report the molecular characterization of OsSerk1. Overexpression of OsSerk1 results in a semi-dwarf phenotype whereas silencing of OsSerk1 results in a reduced angle of the lamina joint. OsSerk1 is not required for rice resistance to Xoo or Magnaporthe oryzae. Overexpression of Os Serk1 in OsSerk2-silenced lines complements phenotypes associated with brassinosteroid（BR） signaling defects, but not the disease resistance phenotype mediated by Xa21. In yeast, OsSERK1 interacts with itself forming homodimers, and also interacts with the kinase domains of OsSERK2 and BRI1, ***1 is a functional protein kinase capable of auto-phosphorylation in vitro. We conclude that, whereas OsSERK2 regulates both rice development and immunity, OsSERK1 functions in rice development but not immunity to Xoo and M. oryzae.

关键词： Oryza sativa OsSERK1 somatic embryogenesis receptor kinase Xanthomonas oryzae pv.Oryzae Magnaporthe oryzae