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WRKY72 Negatively Regulates Seed Germination Through Interfering Gibberellin Pathway in Rice

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Rice science 2021年第1期28卷 1-5页

作者： Wang Huimei Hou Yuxuan Wang Shuang tong xiaohong Tang Liqun Abolore Adijat Ajadi Zhang Jian Wang Yifeng State Key Lab of Rice Biology China National Rice Research InstituteHangzhou 311400China College of Life Science Yangtze UniversityJingzhou 434025China

Seed germination is associated with grain yield and quality in crop *** acid(GA)serves as a major phytohormone in the promotion of seed *** is synthesized in the embryos and transmitted to the aleurone layers,where GA triggers the synthesis and secretion of a set of hydrolases,especiallyα-***,the storage nutrients such as starch in the endosperm are digested by these hydrolases and absorbed by the embryo to sustain seed germination and early seedling establishment(Kaneko et al,2002).The detailed GA biosynthesis process has been well studied and thoroughly reviewed in several literatures(Sakamoto et al,2004;Reinecke et al,2013).Briefly,geranylgeranyl diphosphate(GGDP)is turned into ent-kaurene by two terpene synthases,ent-copalyl diphosphate synthase(CPS)and ent-kaurene synthase(KS).Subsequently,the conversion of GA precursor ent-kaurene to ent-kaurenoic acid is catalyzed by ent-kaurene oxidase(KO),and that from ent-kaurenoic acid to GA12 is catalyzed by ent-kaurenoic acid oxidase(KAO).Ultimately,GA12 is converted to various GA intermediates and bioactive GAs by GA20-oxidase(GA20ox)and GA3-oxidase(GA3ox),respectively.

关键词： catalyzed thoroughly converted

Protein Phosphorylation and Phosphoproteome:An Overview of Rice

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Rice science 2020年第3期27卷 184-200页

作者： Abolore Adijat AJADI Amara CISSE Shakeel AHMAD WANG Yifeng SHU Yazhou LI Shufan LIU Xixi Babatunde Kazeem BELLO Sani Muhammad TAJO tong xiaohong ZHANG Jian State Key Laboratory of Rice Biology/China National Center for Rice Improvement/Laboratory of Rice Stress Physiology and Regulation China National Rice Research InstituteHangzhou 310006China Biotechnology Unit National Cereals Research InstituteBadeggiNiger State 912101Nigeria Lianyungang Academy of Agricultural Sciences Lianyungang 222243China Bioresources Development Center National Biotechnology Development AgencyKano 700241Nigeria

Protein phosphorylation,one of the major post-translational modifications,plays a crucial role in cell signaling,DNA replication,gene expression and differentiation;and alters enzyme activity and other biological activities;and regulates cell proliferation and enlargement,phytohormone biosynthesis and signaling,plant disease resistance,and grain filling and quality during rice seed *** work on protein phosphorylation started in the 1950 s with the discovery of phosphorylase a and phosphorylase b which are phospho and dephospho forms of the same *** the last decade,rice proteomics has accomplished tremendous progress in setting up techniques to proteome nearly all tissues,organs and *** progress made in this field is evident in number of research ***,research on rice protein phosphorylation is still at its infancy and there are still many unanswered *** this review,the general description of protein phosphorylation,including history,structure,frequency of occurrence and function,are *** work also elucidates the different methods for identification,qualification and finally,the progress in rice phosphoproteome research and perspectives.

关键词： phosphoproteome protein phosphorylation post-translational modification rice

The OsNAC23-Tre6P-SnRK1 a feed-forward loop regulates sugar homeostasis and grain yield in rice

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Molecular Plant 2022年第4期15卷 706-722页

作者： Zhiyong Li Xiangjin Wei xiaohong tong Juan Zhao Xixi Liu Huimei Wang Liqun Tang Yazhou Shu Guanghao Li Yifeng Wang Jiezheng Ying Guiai Jiao Honghong Hu Peisong Hu Jian Zhang State Key Lab of Rice Biology China National Rice Research InstituteHangzhou 311400China College of Life Science and Technology Huazhong Agricultural UniversityWuhan 430070China

Tre6P(trehalose-6-phosphate)mediates sensing of carbon availability to maintain sugar homeostasis in plants,which underpins crop yield and ***,how Tre6P responds to fluctuations in sugar levels and regulates the utilization of sugars for growth remains to be ***,we report that the sugar-inducible rice NAC transcription factor OsNAC23 directly represses the transcription of the Tre6P phosphatase gene TPP1 to simultaneously elevate Tre6P and repress trehalose levels,thus facilitating carbon partitioning from source to sink ***,OsNAC23 and Tre6P suppress the transcription and enzyme activity of SnRK1a,a low-carbon sensor and antagonist of OsNAC23,to prevent the SnRK1a-mediated phosphorylation and degradation of ***,OsNAC23,Tre6P,and SnRK1a form a feed-forward loop to sense sugar and maintain sugar homeostasis by transporting sugars to sink ***,plants over-expressing OsNAC23 exhibited an elevated photosynthetic rate,sugar transport,and sink organ size,which consistently increased rice yields by 13%–17%in three elite-variety backgrounds and two locations,suggesting that manipulation of OsNAC23 expression has great potential for rice ***,these findings enhance our understanding of Tre6P-mediated sugar signaling and homeostasis,and provide a new strategy for genetic improvement of rice and possibly also other crops.

关键词： Tre6P sugar homeostasis carbon partitioning NAC transcription factor grain yield rice

A weak allele of TGW5 enables greater seed propagation and efficient size-based seed sorting for hybrid rice production

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Plant Communications 2024年第4期5卷 137-140页

作者： Jiezheng Ying Yaobing Qin Fengyong Zhang Liu Duan Peng Cheng Man Yin Yifeng Wang xiaohong tong Jie Huang Zhiyong Li Xianjun Song Jian Zhang State Key Lab of Rice Biology and Breeding China National Rice Research InstituteHangzhou 311400China State Key Laboratory of Biocatalysis and Enzyme Engineering School of Life SciencesHubei UniversityWuhan 430062China Key Laboratory of Plant Molecular Physiology Institute of Botanythe Chinese Academy of SciencesBeijing 100093China These authors contributed equally to this article

Dear Editors,Heterosis utilization is an effective way to improve crop *** rice typically out-yield inbred rice varieties by 10%and show better stress resistance,and they have been widely adopted in Asian countries since the 1980s(Cheng et al.,2007).To produce rice F1 hybrid seeds(HSDs),male sterile lines(MSLs)are grown side by side with restorer lines(RLs)in order to receive the RL *** seed production system faces challenges in maintaining the seed purity of the HSDs owing to the physical proximity of MSL and RL plants in the ***,MSLs and RLs are planted in alternate rows to enable physical separation of seeds during harvesting.

关键词： planted sterile enable

Multi-gene engineering boosts oil content in rice grains

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Plant Communications 2024年第2期5卷 15-18页

作者： Xixi Liu Zhiyong Li Jiezheng Ying Yazhou Shu Wanning Liu Guanghao Li Lijuan Chen Jinjin Luo Shiyi Wang Yifeng Wang xiaohong tong Jie Huang Hao Du Jian Zhang State Key Laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 311400China College of Agriculture and Biotechnology Zhejiang UniversityHangzhouChina

Dear Editor,Lipids are the essential building blocks of cellular membranes and act as signaling molecules to modulate various biological processes such as membrane remodeling and intracellular organelle *** addition,lipids serve as storage forms of carbon and energy for the human diet(Suh et al.,2022).Because global consumption of plant-derived oils is estimated to reach 249 million tons by 2031,improvements in the yield of vegetable oils are urgently needed(OECD,2022).

关键词： boost grains content

Changes in Antioxidant Activity of Alcalase-Hydrolyzed Soybean Hydrolysate under Simulated Gastrointestinal Digestion and Transepithelial Transport

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大豆科技 2019年第S1期 84-96页

作者： Zhang Qiaozhi tong xiaohong Qi Baokun Wang Zhongjiang Li Yang Sui Xiaonan Jiang Lianzhou 不详

Peptides from Alcalase-hydrolyzed soybean protein hydrolysate(SPH)may hold the potential as natural *** addition,the effect of human gastrointestinal(GI)tract on peptide bioavailability needs to be *** this study,the impact of simulated GI digestion and transepithelial transport on various antioxidant properties of SPH were *** displayed DPPH radical scavenging(IC50=4.22 mg/m L),ABTS·+radical scavenging(IC50=2.93 mg/m L),reducing power and metal ion-chelating activities(IC50=0.67 mg/m L).Furthermore,SPH significantly(P<0.05)inhibited the generation of intracellular reactive oxygen species(ROS)in Caco-2 *** simulated GI digestion,the antioxidant properties of SPH were enhanced,except for a decrease in ABTS·+radical scavenging *** transepithelial transport,the permeates maintained partial antioxidant activity and the LC-MS/MS data further identified the absorbed soybean *** results suggest that SPH contains the antioxidant peptides that are potentially bioavailable and can be regarded as a promising source of functional food ingredients.

关键词： Soybean protein hydrolysate Antioxidant activity Simulated gastrointestinal digestion Transepithelial transport Caco-2 cells

Antioxidant Activity and Protective Effects of Alcalase-Hydrolyzed Soybean Hydrolysate in Human Intestinal Epithelial Caco-2 Cells

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大豆科技 2019年第S1期 54-65,75页

作者： Zhang Qiaozhi tong xiaohong Sui Xiaonan Wang Zhongjiang Qi Baokun Li Yang Jiang Lianzhou 不详

Soybeans are known as a promising source of bioactive ***,knowledge on the antioxidant behaviors of soybean protein hydrolysate(SPH)in the human intestinal epithelium is *** this study,SPH was prepared with Alcalase and subsequently ultrafiltered into four peptide fractions as SPH-I(10 kDa).The antioxidant properties of SPH and membrane fractions were investigated using different chemical assays and their protective effects against oxidative stress were evaluated using H2 O2-stressed human intestinal Caco-2 *** showed that SPH-I exhibited the strongest 2,2-diphenyl-1-picrylhydrazyl(DPPH)radical scavenging activity(IC50=2.56 mg/m L)and reducing capacity while SPH-III had the best metal ion-chelating activity(IC50=0.29 mg/m L).Both SPH and the peptide fractions dose-dependently suppressed intracellular reactive oxygen species(ROS)accumulation induced by H2O2 in Caco-2 cells,but the strongest inhibitory effect was observed for *** acid(AA)results revealed that SPH-I was rich in hydrophobic and antioxidant AAs,which could contribute to its stronger antioxidant ***,SPH-I protected Caco-2 cells from H2O2-induced oxidative stress via inhibiting lipid peroxidation and stimulating antioxidant enzyme *** results suggest that SPH-I and constitutive peptides can be beneficial ingredients with antioxidant properties and protective effects against ROS-mediated intestinal injury.

关键词： Soybean protein hydrolysate Antioxidant activity Alcalase Oxidative stress Cytoprotective effect Caco-2 cells

基于动态多维博弈模型的物流企业经营策略研究

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物流技术 2013年第10期32卷 163-165页

作者：佟晓虹辽宁科技大学应用技术学院辽宁鞍山114000

以物流企业为例,运用多维度的动态博弈理论建立了两家物流企业在不完全信息条件下的销售和利润静态模型,分别对两家物流企业在物流硬件条件建设投入、服务质量策略和价格策略三方面进行了博弈分析,通过对目标函数求导的方法求解了权衡... 详细信息

以物流企业为例,运用多维度的动态博弈理论建立了两家物流企业在不完全信息条件下的销售和利润静态模型,分别对两家物流企业在物流硬件条件建设投入、服务质量策略和价格策略三方面进行了博弈分析,通过对目标函数求导的方法求解了权衡考虑物流硬件条件建设投入、服务质量策略和价格策略三方面时的最优经营策略。结果证明,企业只有在综合考虑多方面的情况下才能实现利润的最大化,特别是在服务质量方面的投入具有很重要的意义。

关键词：动态多维博弈物流企业服务质量物流价格最优策略向量

高压微射流对生物解离大豆膳食纤维特性的影响

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农业机械学报 2018年第8期49卷 346-352页

作者：王欢佟晓红刘龄李红胡淼江连洲东北农业大学食品学院哈尔滨150030

采用动态高压微射流(Dynamic high pressure microfluidization,DHPM)技术对生物解离大豆膳食纤维进行改性,探讨其对膳食纤维组成、理化及功能特性的影响。结果表明:生物解离和动态高压微射流技术均可有效提高大豆膳食纤维中可溶性膳食... 详细信息

采用动态高压微射流(Dynamic high pressure microfluidization,DHPM)技术对生物解离大豆膳食纤维进行改性,探讨其对膳食纤维组成、理化及功能特性的影响。结果表明:生物解离和动态高压微射流技术均可有效提高大豆膳食纤维中可溶性膳食纤维的含量,降低不可溶性膳食纤维的含量,使不可溶性膳食纤维与可溶性膳食纤维质量分数的比值达到1.87;通过对比不同处理压力的生物解离大豆膳食纤维中其余成分的含量可知,DHPM对生物解离膳食纤维中含水率影响不显著(P>0.05)。生物解离和动态高压微射流技术能明显改善膳食纤维的水化性质和持油力,但对阳离子交换能力的影响不显著;在pH值7条件下,不同压力处理膳食纤维的重金属离子吸附能力差异不显著,且膳食纤维在pH值7条件下对同种重金属离子的吸附效果优于pH值为2的情况。膳食纤维对葡萄糖吸收能力随处理压力的提高而依次增大,达到200 MPa时略有下降,且不同压力处理膳食纤维的葡萄糖吸收能力均随葡萄糖浓度的增加而提高;200 MPa处理压力下的生物解离膳食纤维的α-淀粉酶抑制能力最高,为18.42%,较0~150 MPa处理的膳食纤维样品分别提高了约36%、32%、28%和27%。随动态高压微射流技术处理压力的增加,膳食纤维结合胆汁酸的能力有所升高。因此,动态高压微射流技术可以作为提高膳食纤维生理功能的有效途径。

关键词：大豆膳食纤维可溶性膳食纤维理化性质功能特性生物解离动态高压微射流