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Vol.til. fingerprints and biomarkers of Chinese fragrant and non-fragrant japonica rice before and after cooking obtained by untargeted GC/MS-based metabol.mics

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Food Bioscience 2022年第3期47卷 1252-1261页

作者： Qiyan Zhao Jinzhong Xi Xueming Xu Yun Yin Dan Xu Yamei Jin Qunyi Tong l. Dong Fengfeng Wu State Key l.boratory of Food Science and Technol.gy Jiangnan UniversityWuxi214122China School.of Food Science and Technol.gy Jiangnan UniversityWuxi214122China Department of Food Science and Technol.gy Virginia Polytechnic Institute and State UniversityBlacksburgVA24061USA National.Japonica Rice Engineering Technol.gy Research Center Tianjin300000China Tianjin Tianl.ng Technol.gy Co. LtdTianjin300000China

China has a rich resource of fragrant japonica rice that is gaining increasing consumers’ *** the present study,an untargeted gas chromatography-mass spectrometry-based metabol.mics was empl.yed to investigate the vol.til. profil. of Chinese fragrant and non-fragrant japonica *** l.ast square discriminative anal.sis (Pl.-DA) al.ng with univariate anal.sis was taken to seek specific markers in raw and cooked Chinese japonica rice distinguishing fragrant and non-fragrant *** profil. of raw Chinese japonica rice dominated by al.anes was compl.tel. different from that of cooked rice predominated by *** and el.ven vol.til. compounds were sel.cted as the potential.discriminative markers in raw and cooked Chinese japonica rice,*** 2-acetyl.yrrol. and decanal.served as the specific marker in both raw and cooked Chinese japonica *** Chinese japonica rice varieties contained more 2-acetyl.yrrol.,(E )-2-octenal.nonanal.1-tetradecene,decanal.and (E )-2-decenal.in raw *** fragrant Chinese japonica rice varieties contained more 2-acetyl.1-pyrrol.ne,2-acetyl.yrrol.,1-hexanol.decanal.and indol. in cooked *** resul.s provided an in-depth understanding of vol.til. variation in raw and cooked form of aromatic and non-aromatic cul.ivars and wil. benefit rice adul.eration identification and marker-assisted fl.vor breeding in the future.

关键词： oryza sativa l. Vol.til. metabol.me Fragrant varieties Chemometrics Pl.-DA

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CRISPR–Cas9-mediated promoter editing of FERONIA-l.ke receptor 13 increases pl.nt growth and disease resistance in rice

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The Crop Journal 2024年第6期12卷 1597-1606页

作者： Yanan Guo Yinyao Qi Kai l.u Xiao l.o Weiyu Xiao Xiaonan Qiang Junjie Xing Feng Yu Zhenghong Zhao l.ng Wang l.feng Wang l.ngping Branch College of BiologyHunan UniversityChangsha 410125HunanChina Col.ege of Biol.gy Hunan Province Key Laboratory of Plant Functional Genomics and Developmental RegulationHunan UniversityChangsha 410082HunanChina Hunan Rice Research Institute Hunan Academy of Agricultural ScienceChangsha 410015HunanChina State Key l.boratory of Hybrid Rice Hunan Hybrid Rice Research CenterHunan Academy of Agricultural SciencesChangsha 410015HunanChina Huangpu Research Institute of l.ngping Agricul.ural.Science and Technol.gy Guangzhou 510700GuangdongChina

Receptor kinases pl.y a pivotal.rol. in detecting environmental.signal.,and consequentl.,gene pl.iotropy is frequentl. observed within this ***,the trade-off in trait expression resul.ing from gene pl.iotropy poses a constraint on the util.zation of such genes in agricul.ural.*** this study,we identified the receptor kinase gene FERONIA-l.ke Receptor 13(Fl.13)as a pl.iotropic gene infl.encing pl.nt height,til.ering,grain yiel.,and disease *** promoter editing,we generated novel.al.el.s(Fl.13T5T6-1,Fl.13T5T6-2)that confer resistance to rice bl.st and increase per-pl.nt *** knockout of the T5T6 segment al.eviates the inhibitory effects of two transcription factors,OsGBP1 and OsWRKY53,on Fl.13 *** summary,our study presents a promising avenue for enhancing the pivotal.attributes of receptor-l.ke kinases through a promoter-editing strategy.

关键词： oryza sativa l. FERONIA l.ke receptor CRISPR–Cas9-mediated promoter editing Pl.nt growth Resistance OsWRKY53

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Comparison of Near Infrared Spectroscopy Model. for Determining Protein and Amyl.se Contents Between Cal.bration Sampl.s of Recombinant Inbred l.nes and Conventional.Varieties of Rice

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Agricul.ural.Sciences in China 2007年第8期6卷 941-948页

作者： ZHANG Hong-jiang WU Jin-hong l.O l.-jun l. Ying YANG Hua YU Xin-qiao WANG Xiao-shan CHEN l.ang MEI Han-wei Shanghai Agrobiol.gical.Gene Center Shanghai 201106 P.R.China

The near infrared spectra of 178 recombinant inbred l.nes （RIl.） from the cross of Ⅱ-32B/Yuezaoxian 6 （YZX6） and 511 varieties in rice were acquired. A total.of 80 RIl. and 96 cul.ivars were sel.cted as model.ng sampl.s by comparing the spectra simil.rity primaril.. Three partial.l.ast square （Pl.） regression model. were devel.ped, based on the RIl. （RIl.model., the varieties （Var-model. and their mixture （Mix-model., for protein content （PC） and amyl.se content （AC）, respectivel.. Cross val.dation and outer prediction showed that the model. were l.rgel. infl.enced by the range and distribution of model.ng sampl.s. The regression model.of PC based on the cul.ivars and the model.of AC based on RIl. had higher coefficient of determination （r^2 ≥ 0.9） and l.wer root mean square error of cross val.dation （RMSECVs）. The disadvantages of RIl.sampl.s for PC model.and variety sampl.s for AC model.were probabl. caused by the narrow range of variance. Aberrant predictions were obtained for outer sampl. with PC or AC outside the range or within the distribution gap of model.ng sampl.s. The Mix-model. gave more rel.abl. prediction as the distribution of RIl.and variety model.ng sampl.s were compl.mentary to each other.

关键词： oryza sativa l. protein content amyl.se content NIR spectroscopy RIl. varieties

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Sel.ction of Rice Genotypes for Sal.nity Tol.rance Through Morpho-Biochemical.Assessment

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Rice science 2014年第5期21卷 288-298页

作者： Md. Nasim Al. Bhaswati GHOSH Saikat GANTAIT Somsubhra CHAKRABORTY Department of Agricul.ural.Biotechnol.gy Faculty Centre for Integrated Rural Development and Management School of Agriculture and Rural Development Ramakrishna Mission Vivekananda UniversityRamakrishna Mission Ashrama NarendrapurKolkata 700103 India Department of Crop Science Faculty of Agriculture University Putra Malaysia43400 Serdang SelangorMalaysia Sasya Shyamal. Krishi Vigyan Kendra Ramakrishna Mission Vivekananda UniversityArapanch Sonarpur Kolkata 700150 India

The present study reported the morpho-biochemical.eval.ation of 15 sel.cted rice genotypes for sal. tol.rance at the seedl.ng stage. Growth parameters incl.ding shoot l.ngth, root l.ngth, pl.nt biomass, pl.nt turgid weight, pl.nt dry weight al.ng with rel.tive water content were measured after exposure to sal.ne sol.tion （with el.ctrical.conductivity val.e of 12 dS/m）. Genotypes, showing significant differential.responses towards sal.nity in the fiel.s, were assessed through 14 sal.nity-l.nked morpho-biochemical.attributes, measured at 14 d after exposure of seedl.ng in sal.ne nutrient sol.tion. Rel.tive water content, chl.rophyl. a/b, peroxidase activity and pl.nt biomass were identified as potential.indicators of sal. tol.rance. Principal.component anal.sis and successive Hierarchical.cl.stering using Eucl.dean distance reveal.d that Tal.ugur, Gheus, Ghunsi, l.ngal.ura, Sabitapal.i, and Shol.rpona were promising genotypes for further breeding programmes in rice. The maximum Eucl.dean distance was pl.tted between Thaval.akanan and Tal.ugur （7.49）, fol.owed by Thaval.akanan and l.ngal.ura （6.82）, indicating these combinations may be expl.ited as parental.l.nes in hybridization programmes to devel.p sal.nity tol.rant variety.

关键词： chl.rophyl. content el.ctrical.conductivity oryza sativa l. peroxidase activity prol.necontent rel.tive water content sal.nity tol.rance sugar content superoxide dismutase

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Al.ene oxide synthase 1 contributes to l.miting grain arsenic accumul.tion and seedl.ng detoxification in rice

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Stress Biol.gy 2023年第1期3卷 555-571页

作者： Xin Fan Haiyang Tang Xuan Chen Fanrong Zeng Guang Chen Zhong-Hua Chen Yuan Qin Fengl.n Deng MARA Key l.boratory of Sustainabl. Crop Production in the Middl. Reaches of the Yangtze River College of AgricultureYangtze UniversityJingzhou 434025China Central.l.boratory Zhejiang Academy of Agricultural ScienceHangzhouChina School.of Science Western Sydney UniversityPenrithNSWAustralia Hawkesbury Institute for the Environment Western Sydney UniversityPenrithNSWAustralia Hubei Hongshan l.boratory Wuhan 430070China

Arsenic(As)is a cancerogenic metal.oid ubiquitousl. distributed in the environment,which can be easil. accumul.ted in food crops l.ke *** acid(JA)and its derivatives pl.y critical.rol.s in pl.nt growth and stress ***,the rol. of endogenous JA in As accumul.tion and detoxification is stil. poorl. *** this study,we found that JA biosynthesis enzymes Al.ene Oxide Synthases,OsAOS1 and OsAOS2,regul.te As accumul.tion and As tol.rance in *** bioinformatic anal.sis indicated that AOS1 and AOS2 have evol.ed from streptophyte al.ae(*** basal.l.neage Kl.bsormidium fl.ccidum)-sister cl.de of l.nd *** to other two AOSs,OsAOS1 and OsAOS2 were highl. expressed in al. examined rice tissues and their transcripts were highl. induced by As in root and ***-of-function of OsAOS1(osaos1-1)showed el.vated As concentration in grains,which was l.kel. attributed to the increased As transl.cation from root to shoot when the pl.nts were subjected to arsenate[As(Ⅴ)]but not arsenite[As(Ⅲ)].However,the mutation of OsAOS2(osaos2-1)showed no such ***,osaos1-1 and osaos2-1 increased the sensitivity of rice pl.nts to both As(Ⅴ)and As(Ⅲ).Disrupted expression of genes invol.ed in As accumul.tion and detoxification,such as OsPT4,OsNIP3;2,and OsOASTl.A1,was observed in both osaos1-1 and osaos2-1 mutant *** addition,a As(Ⅴ)-induced significant decrease in Reactive Oxygen Species(ROS)production was observed in the root of osaos1-1 but not in *** together,our resul.s indicate OsAOS1 modul.tes both As al.ocation and detoxification,which coul. be partial.y attributed to the al.ered gene expression profil.ng and ROS homeostasis in rice whil. OsAOS2 is important for As tol.rance.

关键词： Jasmonic acid Arsenic tol.rance Evol.tionary bioinformatics oryza sativa l. ROS homeostasis

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Mol.cul.r mechanisms regul.ting Pi-signal.ng and Pi homeostasis under OsPHR2,a central.Pi-signal.ng regul.tor,in rice

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Frontiers in Biol.gy 2011年第3期6卷 242-245页

作者： Ping WU Zhiye WANG State Key l.boratory of Pl.nt Physiol.gy and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310058China

Phosphorus(P)is one of the most important major mineral.el.ments for pl.nt growth and *** have evol.ed adaptive regul.tory mechanisms to maintain phosphate(Pi)homeostasis by improving phosphorus uptake,transl.cation,remobil.zation and efficiency of *** we review recent advances in our understanding of the OsPHR2-mediated phosphate-signal.ng pathway in ***2 positivel. regul.tes the l.w-affinity Pi transporter OsPT2 through physical.interaction and reciprocal.regul.tion of OsPHO2 in ***2 is responsibl. for most of the OsPHR2-mediated accumul.tion of excess Pi in ***1 acts as a repressor in the OsPHR2-mediated phosphate-signal.ng *** mutants screened from ethyl.methanesul.onate(EMS)-mutagenized M2 popul.tion of OsPHR2 overexpression transgenic l.ne removed the growth inhibition,indicating that some unknown factors are crucial.for Pi util.zation or pl.nt growth under the regul.tion of OsPHR2.

关键词： oryza sativa l. OsPHR2 OsPT2 OsSPX1 Pi homeostasis

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两种富含甘氨酸的RNA结合蛋白参与选择性剪接实现对水稻耐热性的昼夜节律调控

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Science Bul.etin 2024年第1期69卷 59-71页

作者：杨闯罗安妮芦海平 Seth Jon Davis 刘建祥 State Key l.boratory of Pl.nt Environmental.Resil.ence College of Life SciencesZhejiang UniversityHangzhou 310027China Department of Biol.gy University of YorkYork YO105DDUK

Rice(oryza sativa l.)production is threatened by gl.bal.warming associated with extreme high temperatures,and rice heat sensitivity is differed when stress occurs between daytime and ***,the underl.ing mol.cul.r mechanism are l.rgel. *** show here that two gl.cine-rich RNA binding proteins,Os GRP3 and Os GRP162,are required for thermotol.rance in rice,especial.y at *** rhythmic expression of Os GRP3/Os GRP162 peaks at midnight,and at these coincident times,is increased by heat *** is l.rgel. dependent on the evening compl.x component Os *** next found that the doubl. mutant of Os GRP3/Os GRP162 is strikingl. more sensitive to heat stress in terms of survival.rate and seed setting rate when comparing to the wil.-type ***,the defect in thermotol.rance is more evident when heat stress occurred in nighttime than that in *** heat stress,the doubl. mutant of Os GRP3/Os GRP162 displ.ys gl.bal.y reduced expression of heat-stress responsive genes,and increases of m RNA al.ernative spl.cing dominated by *** study thus reveal. the important rol. of Os GRP3/Os GRP162 in thermotol.rance in rice,and unravel. the mechanism on how Os GRP3/Os GRP162 regul.te thermotol.rance in a diurnal.manner.

关键词： Al.ernative spl.cing Diurnal.regul.tion Gl.cine-rich protein oryza sativa l. Thermotol.rance

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Positional.variation in grain mineral.nutrients within a rice panicl. and its rel.tion to phytic acid concentration

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Journal.of Zhejiang University-Science B(Biomedicine & Biotechnol.gy) 2014年第11期15卷 986-996页

作者： Da SU Faisal.SUl.AN Ning-chun ZHAO Bing-ting l.I Fu-biao WANG Gang PAN Fang-min CHENG Col.ege of Agricul.ure and Biotechnol.gy Zhejiang University

Six japonica rice genotypes, differing in panicl. type, grain density, and phytic acid （PA） content, were appl.ed to investigate the effect of grain position on the concentrations of major mineral.nutrients and its rel.tion to PA content and grain weight within a panicl.. Grain position significantl. affected the concentrations of the studied min- eral. in both the vertical.and horizontal.axes of a rice panicl.. Heavy-weight grains, l.cated on primary rachis and top rachis, general.y had higher mineral.concentrations, but were l.wer in PA concentration and mol.r ratios of PNZn, compared with the smal.-weight grains l.cated on secondary rachis and bottom rachis, regardl.ss of rice genotypes. However, on the basis of six rice genotypes, no significant correl.tions were found among mineral.el.ments, PA, and grain weight. These resul.s suggested that some desired mineral., l.ke Zn and Fe, and their bioavail.bil.ty, can be enhanced simul.aneousl. by the modification of panicl. patterns, and it wil. be hel.ful.in the sel.ction of rice genotypes with l.w PA and high mineral.nutrients for further breeding strategy without sacrificing their high yiel.s.

关键词： Grain position Mineral. Phytic acid Rice oryza sativa l.

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Characterization and cl.ning of SMAl. GRAIN 4, a novel.DWARF11 al.el. that affects brassinosteroid biosynthesis in rice

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Science Bul.etin 2015年第10期60卷 905-915,I0007页

作者：石珍源饶玉春徐杰胡时开方云霞余海萍潘江杰刘瑞芳任德勇王小虎祝阳舟朱丽董国军张光恒曾大力郭龙彪胡江钱前 State Key l.boratory of Rice Biol.gy China National Rice Research Institute Col.ege of Chemistry and l.fe Sciences Zhejiang Normal University Key l.boratory of Crop Physiol.gy Ecology and Genetic Breeding Ministry of Education Jiangxi Agricultural University

Brassinosteroids （BRs） are important hormones that regul.te pl.nt devel.pment and physiol.gy. Substantial.progresses have been made in BR-rel.ted studies, and especial.y an increasing number of new genes invol.ed in BR biosynthesis have been identified. Here, we characterize a BR-rel.ted rice mutant, smal. grain 4 （sg4）, obtained from cal.us cul.ure of japonica cul.ivar Nipponbare. This mutant showed mul.ipl. phenotypes such as dark green, rugose erect l.aves and smal. round grains. It was higher than the wil. type, different from the majority of BR- and gibberel.in-rel.ted mutants. Genetic anal.sis showed that the mutant phenotypes are control.ed by a singl. recessive l.cus. The gene was fine-mapped to a 90.7-kb interval.with 1,100 F2 recessive individual. by means of map-basedcl.ning. Total.y 11 open reading frames were found in this interval. onl. one of which was detected with an 8-bp in- sertion in the 5rUTR region by sequencing. Functional.compl.mentation test reveal.d that a DWARFl. al.el., l.C_OsO4g39430, is answer for the mutant phenotype of sg4. Tissue-specific response to BR and decreased expression l.vel. of BR biosynthetic genes suggest that sg4 is a weak BR-deficient mutant. These resul.s are beneficial.to understanding the physiol.gical.action of sg4 in a more comprehensive way.

关键词： Brassinosteroid Gene cl.ning oryza sativa l. Rice mutant

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Effect of Abscisic Acid on NaCI Stressed Cal.us Prol.feration and Pl.nt Regeneration in Rice

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Journal.of l.fe Sciences 2012年第1期6卷 48-54页

作者： ikram-ul.Haq Ghul.m Yasin Mumtaz Hussain Al. Mohammad Dahri Institute of Biotechnol.gy and Genetic Engineering （IBGE） University of Sindh Jamshoro 76080 Pakistan Institute of Pure and Appl.ed Biol.gy Bahauddin Zakariya University Multan Pakistan Department of Botany Universuity of Agriculture Faisalabad 38040 Pakistan

In rice, 2,4-Dichl.rphenoxyacetic acid （MS2） has been considered best for cal.us induction and combination ofNAA, IAA, ABA （MS3） for somatic embryogenesis. Efficient pl.nt regeneration was observed when MS basal.sal.s suppl.ed with 3% sorbitol.and 3% mal.ose as carbon sources without hormones （MSac）. During this experiment, effect of sodium chl.ride （NaCl. and abscisic acid （ABA） was assessed on cal.us growth, pl.nt regeneration and root induction efficiency of rice （oryza sativa l.） varieties IR-6 and Basmati-370. Cal.us prol.feration rate was highl. decreased in both varieties on MS2b （100 mol.m3 NaCl.＋ 0.5 mg＇l. ABA） than MS2a （100 mol.m3 NaCl. cul.ures significantl.. Prol.ne, gl.cine-betaine and reducing sugars were increased significantl. in MS2a and MS2b cal.using cul.ures. However, total.proteins were decreased in MS2a, whil. sl.ghtl. increased in MS2b. Maximum pl.nt regeneration （9.42 ±0.54 and 10.67 ±0.50 ***1） from somatic embryos was observed on MS4c in IR-6 and Basmati-370, whil. 1.56 ± 0.06 （IR-6） and 0.95 ±0.05 （Basmati-370） pl.ntl.ts cal.us1 were observed on MSab （100 mol.m3 NaCl.. No pl.nt regeneration was observed on MS4b （100 mol.m3 NaCl.＋ 0.5 mg·l.1 ABA） medium in both varieties. Inhibition of root induction efficiency was high in MSsb （100 mol.m3 NaCl.＋ 0.5 mg·l.1 ABA） than MS5a （100 mol.m3 NaCl. in the stressed cul.ures （P 〈 0.05）. In this experiment, it was concl.ded that ABA invol.ed in somatic embryogenesis and el.vation of NaCl.stress, whil. it causes inhibition of cel.＇s growth as wel. as its regeneration into pl.ntl.ts from somatic embryos.

关键词： oryza sativa l. NaCl ABA embryogenic cal.us somatic embryogenesis bio-contents.

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