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Histone deacetylase OsHDA706 increases salt tolerance via H4K5/K8 deacetylation of OsPP2C49 in rice

Journal of Integrative Plant Biology 2023年第6期65卷 1394-1407页

作者： Kai Liu Jijin Chen Shang Sun Xu Chen Xinru Zhao Yingying Hu Guoxiao Qi Xiya Li Bo Xu Jun Miao Chao Xue Yong Zhou Zhiyun Gong Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology Agricultural College of Yangzhou UniversityYangzhou 225009China Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops Yangzhou UniversityYangzhou 225009China institute of lianyungang agricultural science of xuhuai area Lianyungang 222006China

High salt is a major environmental factor that threatens plant growth and *** evidence indicates that histone acetylation is involved in plant responses to various abiotic stress;however,the underlying epigenetic regulatory mechanisms remain poorly *** this study,we revealed that the histone deacetylase OsHDA706 epigenetically regulates the expression of salt stress response genes in rice(Oryza sativa L.).OsHDA706 localizes to the nucleus and cytoplasm and OsHDA706 expression is significantly induced under salt ***,oshda706 mutants showed a higher sensitivity to salt stress than the *** vivo and in vitro enzymatic activity assays demonstrated that OsHDA706 specifically regulates the deacetylation of lysines 5 and 8 on histone H4(H4K5and H4K8).By combining chromatin immunoprecipitation and mRNA sequencing,we identified the clade A protein phosphatase 2C gene,OsPP2C49,which is involved in the salt response as a direct target of H4K5 and H4K8 *** found that the expression of OsPP2C49 is induced in the oshda706 mutant under salt ***,the knockout of OsPP2C49 enhances plant tolerance to salt stress,while its overexpression has the opposite *** together,our results indicate that OsHDA706,a histone H4 deacetylase,participates in the salt stress response by regulating the expression of OsPP2C49 via H4K5 and H4K8 deacetylation.

关键词： histone deacetylase OsHDA706 OsPP2C49 rice salt stress

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Whole-genome resequencing identifies candidate genes and allelic variation in the MdNADP-ME promoter that regulate fruit malate and fructose contents in apple

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Plant Communications 2024年第9期5卷 168-183页

作者： Weihong Fu Lin Zhao Wanjun Qiu Xu Xu Meng Ding Liming Lan Shenchun Qu Sanhong Wang College of Horticulture Nanjing Agricultural UniversityNanjing 210095China Xuzhou institute of agricultural sciences in xuhuai Region of Jiangsu Xuzhou 221131China

Soluble sugar and organic acids are key determinants of fruit organoleptic quality and directly affect the commodity value and economic returns of fruit *** performed whole-genome sequencing of the apple varieties Gala and Xiahongrou,along with their F1 hybrids,to construct a high-density bin *** quantitative genetic analysis pinpointed 53 quantitative trait loci(QTLs)related to 11 sugar and acid *** identified a candidate gene,MdNADP-ME,responsible for malate degradation,in a stable QTL on linkage group *** analysis revealed an A/C SNP in the promoter region(MEp-799)that influences binding of the MdMYB2 transcription factor,thereby affecting MdNADP-ME *** our study of various apple genotypes,this SNP has been demonstrated to be linked to malate and fructose *** also developed a dCAPS marker associated with fruit fructose *** results substantiate the role of MdNADP-ME in maintaining the equilibrium between sugar and acid contents in apple fruits.

关键词： apple quantitative trait locus malate degradation sugar content promoter

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A telomere-to-telomere gap-free reference genome of watermelon and its mutation library provide important resources for gene discovery and breeding

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Molecular Plant 2022年第8期15卷 1268-1284页

作者： Yun Deng Shoucheng Liu Yilin Zhang Jingsheng Tan Xiaopeng Li Xiao Chu Binghua Xu Yao Tian Yudong Sun Bosheng Li YunbiXu Xing Wang Deng Hang He Xingping Zhang Peking University institute of Advanced agricultural sciences Shandong Laboratory of Advanced Agricultural Sciences at WeifangWeifangShandong 261000China School of Advanced agricultural sciences and School of Life sciences State Key Laboratory of Protein and Plant Gene ResearchPeking UniversityBeijing 100871China Jiangsu xuhuai area Huaiyin institute of agricultural science HuaianJiangsu 223300China

Watermelon,Citrullus lanatus,is the world's third largest fruit *** genomes with gaps and a narrow genetic base hinder functional genomics and genetic improvement of ***,we report the assembly of a telomere-to-telomere gap-free genome of the elite watermelon inbred line G42 by incorporating high-coverage and accurate long-read sequencing data with multiple assembly *** 11 chromosomes have been assembled into single-contig pseudomolecules without gaps,representing the highest completeness and assembly quality to *** G42 reference genome is 369321829 bp in length and contains 24205 predicted protein-coding genes,with all 22 telomeres and 11 centromeres ***,we established a pollen-EMS mutagenesis protocol and obtained over 200000M1 seeds from *** a sampling pool,48 monogenic phenotypic mutations,selected from 223M1and 78 M2 mutants with morphological changes,were *** average mutation density was 1 SNP/1.69Mband1 indel/4.55 Mb per M1 plant and 1SNP/1.08Mb and 1 indel/6.25 Mb per M2 *** advantage of the gap-free G42 genome,8039 mutations from 32 plants sampled from M1 and M2 families were identified with 100%accuracy,whereas only 25% of the randomly selected mutations identified using the 97103v2 reference genome could be *** this library and the gap-free genome,two genes responsible for elongated fruit shape and male sterility(CiMs1)were identified,both caused by a single basechange from G to *** validated gap-free genome and its EMS mutation library provide invaluable resources for functional genomics and genetic improvement of watermelon.

关键词： watermelon gap-free genome EMS,mutation library gene discovery genome-wide sequencing genic male sterility

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Multiple Tin Compounds Modified Carbon Fibers to Construct Heterogeneous Interfaces for Corrosion Prevention and Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第1期17卷 507-527页

作者： Zhiqiang Guo Di Lan Zirui Jia Zhenguo Gao Xuetao Shi Mukun He Hua Guo Guanglei Wu Pengfei Yin College of science Sichuan Agricultural UniversityYa’an 625014People’s Republic of China School of Materials science and Engineering Hubei University of Automotive TechnologyShiyan 442002People’s Republic of China institute of Materials for Energy and Environment State Key Laboratory of Bio‑Fibers and Eco‑TextilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071People’s Republic of China Shaanxi Key Laboratory of Macromolecular science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’anShaanxi 710072People’s Republic of China

Currently,the demand for electromagnetic wave(EMW)absorbing materials with specific functions and capable of withstanding harsh environments is becoming increasingly ***-component interface engineering is considered an effective means to achieve high-efficiency EMW ***,interface modulation engineering has not been fully discussed and has great potential in the field of EMW *** this study,multi-component tin compound fiber composites based on carbon fiber(CF)substrate were prepared by electrospinning,hydrothermal synthesis,and high-temperature thermal *** utilizing the different properties of different substances,rich heterogeneous interfaces are *** effectively promotes charge transfer and enhances interfacial polarization and conduction *** prepared SnS/SnS_(2)/SnO_(2)/CF composites with abundant heterogeneous interfaces have and exhibit excellent EMW absorption properties at a loading of 50 wt%in epoxy *** minimum reflection loss(RL)is−46.74 dB and the maximum effective absorption bandwidth is 5.28 ***,SnS/SnS_(2)/SnO_(2)/CF epoxy composite coatings exhibited long-term corrosion resistance on Q235 steel ***,this study provides an effective strategy for the design of high-efficiency EMW absorbing materials in complex and harsh environments.

关键词： Electrostatic spinning Component regulation Heterogeneous interfaces Electromagnetic wave absorption Corrosion protection

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Involvement of triadimefon induced early ABA-dependent H2O2 accumulation in soybean against water stress

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Oil Crop science 2020年第1期5卷 41-47页

作者： [] Jiangsu xuhuai Regional institute of agricultural sciences XuzhouChina

The present study showed that pretreatment of triadimefon(TDM),a triazole compound,could improve tolerance of soybean seedlings to subsequent water *** pretreatment resulted in early and late rise in superoxide dismutase(SOD)and catalase(CAT)activities,and upregulation of ascorbate(As A)content in non-stressed and water-stressed seedlings,leading to late increase in net photosynthetic rate(Pn),late decrease in hydrogen peroxide(H2O2)and electrolyte leakage in stressed *** TDM-induced changes were blocked by application of abscisic acid(ABA)biosynthesis inhibitor tungstate,which inhibited early rise of ABA and H2O2contents in non-stressed and stressed ***,ABA pretreatment overcomed the effects of this *** of NADPH oxidase inhibitor diphenyleneiodonium(DPI),polyamine oxidase(PAO)inhibitor 2-hydroxyethylhydrazine(2-HEH)and H2O2scavenger dimethylthiourea(DMTU)prevented early TDM-induced rise of ***,2-HEH and DMTU also decreased SOD,CAT and As A levels,but did not affect ABA content during early and late phases in both seedlings pretreated with *** addition,these chemicals decreased Pn,and increased H2O2content and electrolyte leakage during late phase in TDM-pretreated stressed ***,these results indicated that TDM pretreatment alleviated adverse effects of water stress on soybean seedlings,which was at least in part,due to increase of antioxidant capacity and decrease of oxidative damage induced by early ABA-dependent H2O2generation.

关键词： Triadimefon(TMD) Abscisic acid Hydrogen peroxide Antioxidant ability Water stress Soybean

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Satellite remote sensing reveals overwhelming recovery of forest from disturbances in Asia

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Atmospheric and Oceanic science Letters 2025年第1期18卷 46-51页

作者： Yiying Zhu Hesong Wang Anzhi Zhang School of Ecology and Nature Conservation Beijing Forestry UniversityBeijingChina Key Laboratory of Regional Climate and Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina College of Forestry and Landscape Architecture Xinjiang Agricultural UniversityUrumqiChina

Forest ecosystems play key roles in mitigating human-induced climate change through enhanced carbon uptake;however,frequently occurring climate extremes and human activities have considerably threatened the stability of *** the same time,detailed accounts of disturbances and forest responses are not yet well quantified in *** study employed the Breaks For Additive Seasonal and Trend method-an abrupt-change detection method-to analyze the Enhanced Vegetation Index time series in East Asia,South Asia,and Southeast *** approach allowed us to detect forest disturbance and quantify the resilience after *** showed that 20%of forests experienced disturbance with an increasing trend from 2000 to 2022,and Southeast Asian countries were more severely affected by ***,95%of forests had robust resilience and could recover from disturbance within a few *** resilience of forests suffering from greater magnitude of disturbance tended to be stronger than forests with lower disturbance *** summary,this study investigated the resilience of forests across the low and middle latitudes of Asia over the past two *** authors found that most forests exhibited good resilience after disturbance and about two-thirds had recovered to a better state in *** findings of this study underscore the complex relationship between disturbance and resilience,contributing to comprehension of forest resilience through satellite remote sensing.

关键词： Forest ecosystem Enhanced vegetation index Breaks for additive seasonal and trend method Disturbance Resilience

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Ipomoea batatas HKT1 transporter homolog mediates K^+ and Na^+ uptake in Saccharomyces cerevisiae

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Journal of Integrative Agriculture 2017年第10期16卷 2168-2176页

作者： PARK Sung-chul YU Yi-cheng KOU Meng YAN Hui TANG Wei WANG Xin LIU Ya-ju ZHANG Yun-gang KWAK Sang-soo MA Dai-fu SUN Jian LI Qiang Xuzhou institute of agricultural sciences in Jiangsu xuhuai District/Key Laboratory for Biology and Genetic Breeding of Sweet Potato Ministry of Agriculture/Sweet Potato Research InstituteChinese Academy of Agricultural Science institute of Integrative Plant Biology School of Life ScienceJiangsu Normal University Plant Systems Engineering Research Center Korea Research Institute of Bioscience and Biotechnology

Soil salinity causes the negative effects on the growth and yield of crops. In this study, two sweet potato （Ipomoea batatas L.） cultivars, Xushu 28 （X-28） and Okinawa 100 （O-100）, were examined under 50 and 100 mmol L-1 NaCI stress. X-28 cultivar is relatively high salt tolerant than O-100 cultivar. Interestingly, real-time quantitative polymerase chain reaction （RT-qPCR） results indicated that sweet potato high-affinity K^＋ transporter 1 （IbHKT1） gene expression was highly induced by 50 and 100 mmol L-1 NaCI stress in the stems of X-28 cultivar than in those of O-100 cultivar, but only slightly induced by these stresses in the leaves and fibrous roots in both cultivars. To characterize the function of IbHKT1 transporter, we performed ion-flux analysis in tobacco transient system and yeast complementation. Tobacco transient assay showed that IbHKT1 could uptake sodium （Na^＋）. Yeast complementation assay showed that IbHKT1 could take up K^＋ in 50 mmol L^-1 K^＋ medium without the presence of NaCI. Moreover, Na^＋ uptake significantly increased in yeast overexpressing IbHKTI. These results showed that IbHKT1 transporter could have K^＋-Na^＋ symport function in yeast. Therefore, the modes of action of IbHKT1 in transgenic yeast could differ from the mode of action of the other HKT1 transporters in class I. Potentially, IbHKT1 could be used to improve the salt tolerance nature in sweet potato.

关键词： IbHKT1 Na^+/K^+transporter salt stress sweet potato

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Toxicity of Lanthanum to Pathogenic Fungi and Its Morphological Characteristics

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Journal of Rare Earths 2006年第5期24卷 607-612页

作者：慕康国赵秀琴胡林张福锁张文吉崔建宇 College of Resourse and Environmental science China Agricultural University institute of Crop science Chinese Academy of Agricultural Science College of science China Agricultural University

The inhibitory effects of La on the mycelial growth of several soil-borne pathogenic fungi including Rhizoctonia solani , Pythium sp., Fusarium solani , Selerotinia sclerotiorum , and Fusarium oxyspoxum were studied in vitro. The results show that the mycelial growth was inhibited strongly by the La, with EC50 of 130 - 320 mg·L^-1 and EC95 of about 550- 40007 mg·L^-1 respectively. In addition, the morphological toxicity of La was studied by using the scanning electronic microscope. Treated by La, the mycelial growth of pathogenic fungi was significantly restrained, and the morphological characteristics were found to be abnormal, such as increased ramification, malformation, partial swelling and shrinking, and irregularly entangled mycelial block or rhizomorph.

关键词： pathogenic fungi inhibition lanthanum toxicity scanning electronic microscope morphological toxicity rare earths

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OsbZIP72 Is Involved in Transcriptional Gene-Regulation Pathway of Abscisic Acid Signal Transduction by Activating Rice High-Affinity Potassium Transporter OsHKT1;1

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Rice science 2021年第3期28卷 257-267页

作者： WANG Baoxiang LIU Yan WANG Yifeng LI Jingfang SUN Zhiguang CHI Ming XING Yungao XU Bo YANG Bo LI Jian LIU Jinbo CHEN Tingmu FANG Zhaowei LU Baiguan XU Dayong Babatunde Kazeem BELLO lianyungang institute of agricultural sciences Collaborative Innovation Center for Modern Crop ProductionLianyungang 222006China State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhou 311400China

We created CRISPR-Cas9 knock-out and overexpressing OsbZIP72 transgenic rice plants to gain a better understanding of the role and molecular mechanism of OsbZIP72 gene in stress tolerance,which has remained largely ***72 was expressed and integrated into rice transgenic plant genomes,and the OsbZIP72 transcript in overexpression lines was elicited by salinity,abscisic acid(ABA)and drought ***72 overexpressing plants showed higher tolerance to drought and salinity stresses,while knock-out transgenic lines showed higher sensitivity to these *** differentially expressed genes(DEGs)from RNA-sequencing data encompassed several abiotic stress genes,and the functional classification of these DEGs demonstrated the robust transcriptome diversity in *** one-hybrid,along with luciferase assay,indicated that OsbZIP72 acted as a transcriptional ***,electrophoresis mobility assay revealed that OsbZIP72 bound directly to the ABAresponsive element in the OsHKT1;1 promoter region and activated its ***,our findings revealed that OsbZIP72 can act as a transcriptional modulator with the ability to induce the expression of OsHKT1;1 in response to environmental stress through an ABA-dependent regulatory pathway,indicating that OsbZIP72 can play a crucial role in the ABA-mediated salt and drought tolerance pathway in rice.

关键词： abscisic acid basic leucine zipper drought stress high-affinity potassium transporter rice salinity stress transgenic plant

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Synergistic Effect of Adjuvant Green Orange Peel Oil on Different Herbicides

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Plant Diseases and Pests 2021年第3期12卷 17-19,24页

作者： Ru Li Zhanzhi Xiong Xiangqun Ni Kai Zhang Huaiyin institute of agricultural sciences in xuhuai area Huai'an 223001China

[Objective] The paper was to explore the synergistic effect of a novel adjuvant green orange peel oil on different herbicides in direct sowing paddy field. [Method] The synergistic test of green orange peel oil on 10% cyanoflurate SC and 10% metamifop EC was conducted in 2019.[Result] The control effect of green orange peel oil 150 mL/hm^(2)+ 10% cyanoflurate SC 1 275 mL/hm^(2) on Echinochloa crusgalli and Leptochloa chinensis were significantly superior to that of 10% cyanoflurate SC 1 500 mL/hm^(2). The control effects of green orange peel oil 150 m L/hm^(2)+10%cyanoflurate SC 1 200 m L/hm^(2) on E. crusgalli and L. chinensis was equivalent to that of 10% cyanoflurate SC 1 500 mL/hm^(2). The control effect of green orange peel oil 150 mL/hm^(2)+ 10% metamifop EC 1 275 mL/hm^(2) on E. crusgalli and L. chinensis was equivalent to that of 10% metamifop EC 1 500 m L/hm^(2). [Conclusion] The green orange peel oil had certain synergistic effect on cyanoflurate and metamifop.

关键词： Adjuvant Green peel orange oil Herbicide Cyanoflurate Metamifop Echinochloa crusgalli Leptochloa chinensis Plant control effect Fresh weight control effect Synergism effect

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