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Molecular regulation of tomato male reproductive development

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aBIOTECH 2023年第1期4卷 72-82页

作者： Dandan Yang Zhao Wang xiaozhen huang Cao Xu State Key Laboratory of Plant Genomics National Center for Plant Gene Research(Beijing)Institute of Genetics and Developmental BiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesBeijing 100101China CAS-JIC Centre of Excellence for Plant and Microbial Science Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

The reproductive success of flowering plants,which directly affects crop yield,is sensitive to environmental changes.A thorough understanding of how crop reproductive development adapts to climate changes is vital for ensuring global food *** addition to being a high-value vegetable crop,tomato is also a model plant used for research on plant reproductive *** crops are cultivated under highly diverse climatic conditions *** crosses of hybrid varieties have resulted in increased yields and abiotic stress resistance;however,tomato reproduction,especially male reproductive development,is sensitive to temperature fluctuations,which can lead to aborted male gametophytes,with detrimental effects on fruit *** herein review the cytological features as well as genetic and molecular pathways influencing tomato male reproductive organ development and responses to abiotic *** also compare the shared features among the associated regulatory mechanisms of tomato and other ***,this review highlights the opportunities and challenges related to characterizing and exploiting genic male sterility in tomato hybrid breeding programs.

关键词： Tomato Climate change Male Reproductive development

氨磺必利与利培酮治疗男性精神分裂症的效果比较

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中国实用医刊 2024年第6期51卷 109-112页

作者：徐瑞华王幸黄小振驻马店市第二人民医院精神一科驻马店463000 驻马店市第二人民医院精神八科驻马店463000 驻马店市第二人民医院门诊部驻马店463000

目的对比分析氨磺必利与利培酮治疗男性精神分裂症的临床效果。方法队列研究。抽取2022年3月至2023年3月驻马店市第二人民医院收治的男性精神分裂症患者160例,按随机数字表法分为对照组(80例)和观察组(80例)。对照组采用利培酮治疗,观... 详细信息

目的对比分析氨磺必利与利培酮治疗男性精神分裂症的临床效果。方法队列研究。抽取2022年3月至2023年3月驻马店市第二人民医院收治的男性精神分裂症患者160例,按随机数字表法分为对照组(80例)和观察组(80例)。对照组采用利培酮治疗,观察组采用氨磺必利治疗。对比两组疗效,比较两组治疗前后阳性与阴性症状量表(PANSS)评分、内分泌指标[甲状腺素(TH)、三碘甲状腺原氨酸(T3)]、糖脂代谢指标[空腹血糖(FBG)、总胆固醇(TC)、三酰甘油(TG)]、生活质量综合评定问卷-74(GQOLI-74)评分、社会功能评定量表(SSFPI)评分,比较两组不良反应发生率。结果观察组总有效率(96.25%,77/80)高于对照组(77.50%,62/80),P<0.05。治疗后,观察组阳性症状、阴性症状评分低于对照组(P<0.05),TH、T3水平高于对照组(P<0.05),FBG、TC、TG水平低于对照组(P<0.05),GQOLI-74评分、SSFPI评分高于对照组(P<0.05)。观察组不良反应发生率(6.25%,5/80)低于对照组(16.25%,13/80),P<0.05。结论与利培酮相比,氨磺必利治疗男性精神分裂症效果更好,能明显改善患者阳性症状和阴性症状,提升其生活质量和社会功能,且治疗安全性良好,对内分泌系统和糖脂代谢的影响轻微。

关键词：精神分裂症男性氨磺必利利培酮安全性

Methane production from rice straw carbon in five different methanogenic rice soils:rates,quantities and microbial communities

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Acta Geochimica 2020年第2期39卷 181-191页

作者： Quan Yuan xiaozhen huang Junpeng Rui Shaojun Qiu Ralf Conrad State Key Laboratory of Environmental Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China Max Planck Institute for Terrestrial Microbiology 35043 Marburg.Germany Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Regions(Ministry of Education) Guizhou UniversityGuiyang 550025.China State Key Laboratory of Grassland Agro-Ecosystem.Institute of Innovation Ecology Lanzhou UniversityLanzhou 730000China National Engineering Laboratory for Improving Quality of Arable Land.Ministry of Agriculture Key Laboratory of Plant Nutrition and Fertilizers Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081China

The input of organic substances(e.g.,rice straw)in rice field soils usually stimulates the production and emission of the greenhouse gas methane(CH4).However,the amount of CH4 derived from the applied rice straw,as well as the response of bacterial and archaeal communities during the methanogenic phase,are poorly understood for different rice field *** this study,samples of five different rice soils were amended with 13^C-labeled rice straw(RS)under methanogenic *** after RS addition,the RS-derived CH4 production rates were higher in soils(Uruguay,Fuyang)that possessed a stronger inherent CH4 production potential compared with other soils with lower inherent potentials(Changsha,the Philippines,Vercelli).However,soils with higher inherent potential did not necessarily produce higher amounts of CH4 from the RS applied,or vice *** PCR showed copy numbers of both bacteria and methanogens increased in straw-amended ***-throughput sequencing of 16 S rRNA genes showed distinct bacterial communities among the unamended soil samples,which also changed differently in response to RS ***,RS addition generally resulted in all the rice field soils in a relative increase of primary fermenters belonging to Anaerolineaceae and ***,RS addition also generally resulted in a relative increase of Methanosarcinaceae and/or *** results suggest that after RS addition the total amounts of RSderived CH4 are distinct in different rice field soils under methanogenic ***,there are potential core bacterial populations that are often involved in primary fermentation of RS under methanogenic conditions.

关键词： 13^C-labeled rice straw Methane production Rice field soil Microbial community

DWARF and SMALL SEED1,a Novel Allele of OsDWARF,Controls Rice Plant Architecture,Seed Size,and Chlorophyll Biosynthesis

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Phyton-International Journal of Experimental Botany 2021年第1期90卷 111-127页

作者： Yan Li Renquan huang Jianrong Li xiaozhen huang Xiaofang Zeng Degang Zhao Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region Ministry of EducationInstitute of Agro-Bioengineering and College of Life SciencesGuizhou UniversityGuiyang550025China Guiyang Station for DUS Testing Center of New Plant Varieties of China in Guizhou Academy of Agricultural Sciences Guiyang550006China

Plant architecture is a vital agronomic trait to control yield in rice(Oryza sativa L.).A dwarf and small seed 1(dss1)mutant were obtained from the ethyl methanesulfonate(EMS)mutagenized progeny of a Guizhou glutinous landrace cultivar,*** dss1 mutant displayed phenotypes similar to those of brassinosteroid(BR)deficient mutants,such as dwarfing,dark green and rugose erect leaves,small seeds,and loner neck internode panicles with primary *** our previous study,the underlying DSS1 gene was isolated,a novel allele of OsDWARF(OsBR6ox)that encodes a cytochrome P450 protein involved in the BR biosynthetic pathway by MutMap *** this work,we confirmed that a Thr335Ile amino acid substitution residing in DSS1/OsDWARF was responsible for the dwarf,panicle architecture,and small seed phenotypes in the dss1 mutants by genetic transformation *** overexpression of OsDWARF in the dss1 mutant background could not only recover dss1 to the normal plant height and panicle architecture but also rescued normal leaf angles,seed size,and leaf ***,the specific mutation in DSS1/OsDWARF influenced plant architecture,seed size,and chlorophyll biosynthesis.

关键词： Brassinosteroid chlorophyll biosynthesis dss1 mutant OsDWARF gene panicle architecture

Cloning and Function Identification of a Phytoene Desaturase Gene from Eucommia ulmoides

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Phyton-International Journal of Experimental Botany 2023年第5期92卷 1377-1389页

作者： Jiali Wang Xiangmei Chen xiaozhen huang Yichen Zhao Degang Zhao The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region(Ministry of Education) College of Tea SciencesCollege of Life SciencesGuizhou UniversityGuiyang550000China Plant Conservation Technology Center Guizhou Key Laboratory of Agricultural BiotechnologyGuizhou Academy of Agricultural SciencesGuiyang550000China

The phytoene desaturase(PDS)encodes a crucial enzyme in the carotenoid biosynthesis *** or inhibiting PDS expression leads to the appearance of mottled,chlorosis,or albino *** this study,the CDS sequence of EuPDS(Eucommia ulmoides Phytoene Desaturase)was first cloned and then PDS was silenced in Nicotiana *** showed the expression level of EuPDS in leaves was higher than that in the roots and *** *** leaves,which were treated by Agrobacterium for 24 h,photo-bleaching was shown on the fresh leaves one week after injection and the transcript level of PDS was down-regulated during the period of *** suggested that EuPDS could silence PDS of ***,so as to cause the phenotype of leaf *** is the main reporter gene involved in virus-induced gene silencing(VIGS).This study offered molecular evidence for identifying PDS gene involved in Carotenoid’s biosynthesis pathway and the regulation networks in *** also laid a useful foundation for study on leaf discoloration mechanism of other woody plants.

关键词： Eucommia ulmoides EuPDS virus-induced gene silencing TRV relative expression

The Antagonistic Action of Abscisic Acid and Cytokinin Signaling Mediates Drought Stress Response in Arabidopsis

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Molecular Plant 2018年第7期11卷 970-982页

作者： xiaozhen huang Lingyan Hou Jingjing Meng Huiwen You Zhen Li Zhizhong Gong Shuhua Yang Yiting Shi State Key Laboratory of Plant Physiology and Biochemistry College of Biological Sciences China Agricultural University Beijing 100193 China School of Pharmaceutical Sciences Capital Medical University Beijing 100020 China

As sessile organisms, plants encounter a variety of environmental stresses and must optimize their growth for survival. Abscisic acid （ABA） and cytokinin antagonistically regulate many developmental processes and environmental stress responses in plants. However, the molecular mechanism underlying this antag- onism remains poorly defined. In this study, we demonstrated that Sucrose nonfermentingl-related kinases SnRK2.2, SnRK2.3, and SnRK2.6, the key kinases of the ABA signaling pathway, directly interact with and phosphorylate type-A response regulator 5 （ARR5）, a negative regulator of cytokinin signaling. The phosphorylation of ARR5 Ser residues by SnRK2s enhanced ARR5 protein stability. Accord- ingly, plants overexpressing ARR5 showed ABA hypersensitivity and drought tolerance, and these pheno- types could not be recapitulated by overexpressing a non-phosphorylated ARR5 mimic. Moreover, the type-B ARRs, ARR1, ARR11 and ARR12, physically interacted with SnRK2s and repressed the kinase activ- ity of SnRK2.6. The arrl, 11,12 triple mutant exhibited hypersensitivity to ABA. Genetic analysis demon- strated that SnRK2s act upstream of ARR5 but downstream of ARR1, ARR11 and ARR12 in mediating ABA response and drought tolerance. Taken together, this study unravels the antagonistic actions of several molecular components of the ABA and cytokinin signaling pathways in mediates drought stress response, providing significant insights into how plants coordinate growth and drought stress response by integrating multiple hormone pathways.

关键词： SnRK2s type-A ARR5 type-B ARRs drought stress Arabidopsis

Identification and Characterization of a Novel Yellow Leaf Mutant yl1 in Rice

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Phyton-International Journal of Experimental Botany 2022年第11期91卷 2419-2437页

作者： Xiaofang Zeng Guangzheng Li Nu’an Liu Yan Li Jianrong Li xiaozhen huang Degang Zhao Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region Ministry of EducationInstitute of Agro-Bioengineering and College of Life SciencesGuizhou UniversityGuiyang550025China Guizhou Plant Conservation Technology Center Guizhou Key Laboratory of Agricultural BiotechnologyGuizhou Academy of Agricultural SciencesGuiyang550006China

Leaf-color mutants play an important role in the study of chlorophyll metabolism,chloroplast development,and photosynthesis *** this study,the yellow leaf 1(yl1)rice mutant was identified from the ethyl methane sulfonate-treated mutant progeny of Lailong,a glutinous japonica rice landrace cultivated in Guizhou Province,*** showed that yl1 exhibited yellow leaves with decreased chlorophyll content throughout the growth *** development in the yl1 mutant was disrupted,and the grana lamellae was loosely packed and *** sequencing and real-time quantitative polymerase chain reaction(qRT-PCR)analysis revealed that the chlorophyll synthesis-related genes OsCHLH,OsCHLM,OsCHLG,PORB,and YGL8,as well as the chloroplast development-related genes FtsZ,OsRpoTp,and RbcL,were down-regulated in the yl1 *** analysis revealed that the yellow leaf phenotype of yl1 was controlled by recessive nuclear *** employing the MutMap method,the mutation responsible for the phenotype was mapped to a 6.17 Mb region between 17.34 and 23.51 Mb on chromosome *** non-synonymous single-nucleotide polymorphisms(SNPs)located in the gene locus LOC_Os03g31210 and LOC_Os03g36760 were detected in this *** two SNPs were further confirmed by PCR and Sanger *** expression patterns of the two candidate genes indicated that LOC_Os03g36760 showed greater potential for functional *** protein localization revealed that the encoded product of LOC_Os03g36760 was localized in the nucleus,cytoplasm,and plasma *** results will be useful for further characterization and cloning of the yl1 gene,and for research on the molecular mechanisms controlling biogenesis and chloroplast biochemical processes.

关键词： Rice yl1 chlorophyll biosynthesis map-based cloning

Control of flowering and inflorescence architecture in tomato bysynergistic interactions between ALOG transcription factors

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Journal of Genetics and Genomics 2018年第10期45卷 557-560页

作者： xiaozhen huang Lingli Tang Yuan Yu Justin Dalrymple Zachary B.Lippman Cao Xu State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyChinese Academy of Sciencesand National Center for Plant Gene ResearchBeijing 100101China CAS-JIC Centre of Excellence for Plant and Microbial Science(CEPAMS) Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Graduate School of University of Chinese Academy of Sciences Beijing 100049China Cold Spring Harbor Laboratory Cold Spring Harbor11724USA

Inflorescences are flower-bearing shoots that originate from pools of stem cells in shoot apical meristems (SAM).Inflorescence architecture is determined by a process of meristem maturation,during which stem cell fate switches from a vegetative to a reproductive growth program.A major factor in plant reproductive success in nature and yield in agriculture is the number of branches and flowers on inflorescences (Kobayashi and Weigel,2007;

关键词： Control of flowering and inflorescence architecture in tomato by synergistic interactions between ALOG transcription factors

Overexpression of a Hydroxyproline-rich Glycoprotein(HRGP)in Arabidopsis Affects Plant Development and Defense Responses

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Overexpression of a Hydroxyproline-rich Glycoprotein(HRGP)in...