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The roles of endomembrane trafficking in plant abiotic stress responses

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Journal of Integrative Plant Biology 2020年第1期62卷 55-69页

作者： Xiangfeng Wang Min Xu Caiji Gao Yonglun Zeng Yong Cui wenjin shen Liwen Jiang State Key Laboratory of Plant Physiology and Biochemistry Department of Plant SciencesCollege of Biological SciencesChina Agricultural UniversityBeijing 100193China Guangdong Provincial Key Laboratory of Biotechnology for Plant Development School of Life SciencesSouth China Normal University(SCNU)Guangzhou 510631China School of Life Sciences Centre for Cell&Developmental Biology and State Key Laboratory of AgrobiotechnologyThe Chinese University of Hong KongShatinHong KongChina

Endomembrane trafficking is a fundamental cellular process in all eukaryotic cells and its regulatory mechanisms have been extensively *** plants,the endomembrane trafficking system needs to be constantly adjusted to adapt to the ever-changing *** has accumulated supporting the idea that endomembrane trafficking is tightly linked to stress signaling pathways to meet the demands of rapid changes in cellular processes and to ensure the correct delivery of stress-related cargo ***,the underlying mechanisms remain *** this review,we summarize the recent findings on the functional roles of both secretory trafficking and endocytic trafficking in different types of abiotic *** also highlight and discuss the unique properties of specific regulatory molecules beyond their conventional functions in endosomal trafficking during plant growth under stress conditions.

关键词： stress traffic supporting

SINAT E3 ligases regulate the stability of the ESCRT component FREE1 in response to iron deficiency in plants

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Journal of Integrative Plant Biology 2020年第9期62卷 1399-1417页

作者： Zhidan Xiao Chao Yang Chuanliang Liu Lianming Yang Shuhong Yang Jun Zhou Faqiang Li Liwen Jiang Shi Xiao Caiji Gao wenjin shen Guangdong Provincial Key Laboratory of Biotechnology for Plant Development School of Life SciencesSouth China Normal UniversityGuangzhou510631China MOE Key Laboratory of Laser Life Science&Institute of Laser Life Science College of BiophotonicsSouth China Normal UniversityGuangzhou510631China College of Life Sciences South China Agricultural UniversityGuangzhou510642China School of Life Sciences Center for Cell&Developmental Biology and State Key Laboratory of AgrobiotechnologyThe Chinese University of Hong KongNew TerritoriesHong KongChina State Key Laboratory of Biocontrol Guangdong Provincial Key Laboratory of Plant ResourcesSchool of Life SciencesSun Yat-sen UniversityGuangzhou510275China

The endosomal sorting complex required for transport (ESCRT) machinery is an ancient, evolutionarily conserved membrane remodeling complex that is es-sential for multivesicular body (MVB) biogenesis in eu-karyotes. FYVE DOMAIN PROTEIN REQUIRED FOR EN-DOSOMAL SORTING 1 (FREE1), which was previously identified as a plant-specific ESCRT component, modu-lates MVB-mediated endosomal sorting and autophagic degradation. Although the basic cellular functions of FREE1 as an ESCRT component have been described, the regulators that control FREE1 turnover remain unknown. Here, we analyzed how FREE1 homeostasis is mediated by the RING-finger E3 ubiquitin ligases, SINA of Arabi-dopsis thaliana (SINATs), in response to iron deficiency. Under iron-deficient growth conditions, SINAT1-4 were induced and ubiquitinated FREE1, thereby promoting its degradation and relieving the repressive effect of FREE1 on iron absorption. By contrast, SINAT5, another SINAT member that lacks ubiquitin ligase activity due to the absence of the RING domain, functions as a protector protein which stabilizes FREE1. Collectively, our findings uncover a hitherto unknown mechanism of homeostatic regulation of FREE1, and demonstrate a unique regu-latory SINAT–FREE1 module that subtly regulates plant response to iron deficiency stress.

关键词： component sorting thereby

A positive feedback regulation of SnRK1 signaling by autophagy in plants

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Molecular Plant 2023年第7期16卷 1192-1211页

作者： Chao Yang Xibao Li Lianming Yang Shunquan Chen Jun Liao Kailin Li Jun Zhou wenjin shen Xiaohong Zhuang Mingyi Bai Diane CBassham Caiji Gao Guangdong Provincial Key Laboratory of Biotechnology for Plant Development Ministry of Education&Guangdong Provincial Key Laboratory of Laser Life ScienceSchool of Life SciencesSouth China Normal UniversityGuangzhou 510631China Guangdong Provincial Key Laboratory of Applied Botany&Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China Centre for Cell and Developmental Biology and State Key Laboratory of Agrobiotechnology School of Life SciencesThe Chinese University of Hong KongShatinNewTerritoriesHongKongChina The Key Laboratory of Plant Development and Environmental Adaptation Biology Ministry of EducationSchool of Life SciencesShandong UniversityQingdao 266237China Department of Genetics Development and Cell Biologylowa State UniversityAmesIAUSA

SnRK1,an evolutionarily conserved heterotrimeric kinase complex that acts as a key metabolic sensor in maintaining energy homeostasis in plants,is an important upstream activator of autophagy that serves as a cellular degradation mechanism for the healthy growth of ***,whether and how the autophagy pathway is involved in regulating SnRK1 activity remains *** this study,we identified a clade of plant-specific and mitochondria-localized Fcs-like zinc finger(FLZ)proteins as currently unknown ATG8-interacting partners that actively inhibit SnRK1 signaling by repressing the T-loop phosphorylation of the catalyticαsubunits of SnRK1,thereby negatively modulating autophagy and plant tolerance to energy deprivation caused by long-term carbon ***,these AtFLZs are transcriptionally repressed by low-energy stress,and AtFLZ proteins undergo a selective autophagy-dependent pathway to be delivered to the vacuole for degradation,thereby constituting a positive feedback regulation to relieve their repression of SnRK1 *** analyses show that the ATG8-FLZ-SnRK1 regulatory axis first appears in gymnosperms and seems to be highly conserved during the evolution of seed *** with this,depletion of ATG8-interacting ZmFLZ14 confers enhanced tolerance,whereas overexpression of ZmFLZ14 leads to reduced tolerance to energy deprivation in ***,our study reveals a previously unknown mechanism by which autophagy contributes to the positive feedback regulation of SnRK1 signaling,thereby enabling plants to better adapt to stressful environments.

关键词： snrk1 autophagy ATG8 FLZ carbon starvation

HY5-HDA9 Module Transcriptionally Regulates Plant Autophagy in Response to Light-to-Dark Conversion and Nitrogen Starvation

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Molecular Plant 2020年第3期13卷 515-531页

作者： Chao Yang wenjin shen Lianming Yang Yun Sun Xibao Li Minyi Lai Juan Wei Chaojun Wang Yingchao Xu Faqiang Li Shan Liang Chengwei Yang Shangwei Zhong Ming Luo Caiji Gao Guangdong Provincial Key Laboratory of Biotechnology for Plant Development School of Life SciencesSouth China Normal UniversityGuangzhou 510631China Guangdong Provincial Key Laboratory of Applied Botany Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic ImprovementSouth China Botanical GardenCore Botanical GardensChinese Academy of SciencesGuangzhou 510650China College of Life Sciences Leshan Normal UniversityLeshan 614004China College of Life Sciences South China Agricultural UniversityGuangzhou 510642China School of Advanced Agricultural Sciences and School of Life Sciences Peking University100871 BeijingChina Center of Economic Botany Core Botanical GardensChinese Academy of SciencesGuangzhou 510650China These authors contributed equally to this article

Light is arguably one of the most important environmental factors that determines virtually all aspects of plant growth and development,but the molecular link between light signaling and the autophagy pathway has not been elucidated in *** this study,we demonstrate that autophagy is activated during light-to-dark conversion though transcriptional upregulation of autophagy-related genes(ATGs).We showed that depletion of the ELONGATED HYPOCOTYL 5(HY5),a key component of light signaling,leads to enhanced autophagy activity and resistance to extended darkness and nitrogen starvation treatments,contributing to higher expression ***5 interacts with and recruits HISTONE DEACETYLASE 9(HDA9)to ATG5 and ATG8e loci to repress their expression by deacetylation of the Lys9 and Lys27 of histone ***,we found that both darkness and nitrogen depletion induce the degradation of HY5 via 26S proteasome and the concomitant disassociation of HDA9 from ATG5 and ATG8e loci,leading to their depression and thereby activated *** analysis further confirmed that HY5 and HDA9 act synergistically and function upstream of the autophagy ***,our study unveils a previously unknown transcriptional and epigenetic network that regulates autophagy in response to light-to-dark conversion and nitrogen starvation in plants.

关键词： autophagy histone acetylation HY5 HDA9 light-to-dark shift nitrogen starvation

HY5-HDA9 Module Transcriptionally Regulates Plant Autophagy in Response to Light-to-Dark Conversion and Nitrogen Starvation

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Molecular Plant 2022年第10期15卷 1632-1634页

作者： Chao Yang wenjin shen Lianming Yang Yun Sun Xibao Li Minyi Lai Juan Wei Chaojun Wang Yingchao Xu Faqiang Li Shan Liang Chengwei Yang Shangwei Zhong Ming Luo Caiji Gao 不详

(Molecular Plant 13,515-531;March 2020)After publication of our original manuscript,we became aware of errors in Figure *** the preparation of Figure 4C in this article as originally published,we inadvertently duplicated the image of hda9-1(MS-N)as that of the hda9-1-C(MS+N).Also,in Figure 4H,the image of pUBQ10:GFP-ATG8a/hda9-1(MS+L)was mistakenly a duplicate of pUBQ10:GFP-ATG8a/WT(MS+L)shown in Figure S7C.A corrected version of Figure 4 is shown *** scientific conclusions of this article have not been affected by this *** authors apologize for not detecting this error prior to publication and for any inconvenience that may have been caused.

关键词： Figure Plant Conversion

农村职教教师服务乡村振兴实践能力的形成机理与发展路径

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教育与职业 2023年第22期1046卷 85-92页

作者：申文缙胡彦重庆师范大学职教师资学院重庆401331 重庆市教育科学研究院职业教育与成人教育研究所重庆400015

农村职教教师服务乡村振兴的实践能力由专业教学与培训能力、参与企业生产经营与技术革新能力、传承与创新乡土文化能力、宣传与维护绿色生态能力、协同管理与优化乡村基层党群组织能力等要素构成,其成因涉及教师生存需要、关系需要及... 详细信息

农村职教教师服务乡村振兴的实践能力由专业教学与培训能力、参与企业生产经营与技术革新能力、传承与创新乡土文化能力、宣传与维护绿色生态能力、协同管理与优化乡村基层党群组织能力等要素构成,其成因涉及教师生存需要、关系需要及成长需要,其发展逻辑是生成而非预成的、是多元而非单一的、是共生而非独生的。由于学校对职教教师实践能力的发展目标定位不清晰、教师赴企业实践的机制不健全、实践能力培养体系不完善、相应的制度性保障缺乏、职教教师参与社会实践的支撑条件不足等原因,教师实践能力发展受阻。鉴于此,应确立以服务乡村振兴为宗旨的职教教师实践能力发展目标,建立基于产教融合的职教教师企业实践机制,构建专业性、职业性、师范性“三性融合”的职教教师培养体系,健全职教教师实践能力发展的保障制度及激励机制,打造多元主体协同推动职教教师实践能力发展的社会平台。

关键词：职业教育职教教师乡村振兴实践能力

世界一流学徒制标准探析及启示——基于七国学徒制发展经验的分析

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职教论坛 2020年第7期36卷 168-176页

作者：郭达申文缙天津职业技术师范大学世界技能大赛中国研究中心重庆师范大学

当前,欧洲各国的学徒制发展趋势已经逐步由扩大规模向提高质量转变,均致力于打造高质量乃至世界一流的学徒制。已有150多年发展历史的全球知名教育集团皮尔森国际和英国著名的德比大学国际指导研究中心联合发布的《世界一流学徒制标准:... 详细信息

当前,欧洲各国的学徒制发展趋势已经逐步由扩大规模向提高质量转变,均致力于打造高质量乃至世界一流的学徒制。已有150多年发展历史的全球知名教育集团皮尔森国际和英国著名的德比大学国际指导研究中心联合发布的《世界一流学徒制标准:报告和建议》提出了世界一流学徒制的标准及指标。在我国大力推进学徒制试点建设的关键时期,结合我国学徒制发展的实际,充分参考与借鉴世界一流学徒制标准,高起点、高标准、高质量开展学徒制试点工作,对于我国打造具有中国特色、世界水平的现代学徒制体系具有重要的作用与意义。

关键词：学徒制世界一流标准启示

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德国职业教育质量指标体系及启示

外国教育研究 2015年第6期42卷 109-118页

作者：申文缙周志刚天津大学教育学院天津300072

职业教育质量指标体系是监测职业教育运行状况和评价教育质量的重要参照标准和操作依据,是对职业教育进行科学管理的有效手段。德国职业教育质量指标体系是依据全面的、过程性和以人为本的教育质量观,由宏观、中观及微观三个层级,输入... 详细信息

职业教育质量指标体系是监测职业教育运行状况和评价教育质量的重要参照标准和操作依据,是对职业教育进行科学管理的有效手段。德国职业教育质量指标体系是依据全面的、过程性和以人为本的教育质量观,由宏观、中观及微观三个层级,输入、过程、输出与长效质量四个节点构成的标准系统。借助该体系能够全方位、多角度地控制和改进职业教育质量,有效促进学生能力发展,为国际职业教育质量保障树立了典范。

关键词：职业教育质量观质量指标体系

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德国职教师资合作培养模式探究

现代教育管理 2017年第11期 102-106页

作者：高松申文缙重庆师范大学重庆401331

德国职教师资培养形式多样,除单一机构培养还有合作培养模式,主要包括师范学院(PH)和应用科技大学(FH)合作培养、综合型大学(Uni)和应用科技大学(FH)合作培养两种模式。职教师资合作培养模式具有分工协作、资源共享的特点,对我国职教师... 详细信息

德国职教师资培养形式多样,除单一机构培养还有合作培养模式,主要包括师范学院(PH)和应用科技大学(FH)合作培养、综合型大学(Uni)和应用科技大学(FH)合作培养两种模式。职教师资合作培养模式具有分工协作、资源共享的特点,对我国职教师资培养模式的改革具有借鉴价值。

关键词：德国职教师资合作培养