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Desiccation tolerance in bryophytes： the rehydration proteomes of Bryum argenteum provide insights into the resuscitation mechanism

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Journal of Arid Land 2018年第1期10卷 152-167页

作者： GAO Bei zhang Daoyuan LI Xiaoshuang YANG Honglan LIANG Yuqing CHEN Moxian zhang yuanming zhang Jianhua Andrew WOOD Key Laboratory of Biogeography and Bioresource in Arid Land Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China School of Life Sciences and State Key Laboratory of Agrobiotechnology The Chinese University of Hong KongHong KongChina Department of Biology Faculty of ScienceHong Kong Baptist UniversityHong KongChina Department of Plant Biology Southern Illinois University-CarbondaleCarbondaleIL 62901-6509USA

Bryum argenteum Hedw. is a desiccation tolerant bryophyte and belongs to one of the most important components of the biological soil crusts （BSCs） found in the deserts of Central Asia. Limited information is available on rehydration-responsive proteins in desiccation tolerant plants. As a complement to our previous research analyzing the rehydration transcriptome, we present a parallel quantitative proteomic effort to study rehydration-responsive proteins. Bryophyte gametophores were desiccated （Dry） and rehydrated for 2 h （R2） and 24 h （R24）. Proteins from Dry, R2 and R24 gametophores were labeled by isobaric tags for relative and absolute quantitation （iTRAQ） to determine the relative abundance of rehydration-responsive proteins. A total of 5503 non-redundant protein sequences were identified and 4772 （86.7%） protein sequences were annotated using Gene Ontology （GO） terms and Pfam classifications. Upon rehydration 239 proteins were elevated and 461 proteins were reduced as compared to the desiccated protein sample. Differentially up-regulated proteins were classified into a number of categories including reactive oxygen species scavenging enzymes, detoxifying enzymes, Late Embryogenesis Abundant （LEA） proteins, heat shock proteins, proteasome components and proteases, and photosynthesis and translation related proteins. Furthermore, the results of the correlation between transcriptome and proteome revealed the discordant changes in the expression between protein and mRNA.

关键词： desiccation tolerance B*Tum Physcomitrellapatens proteome iTRAQ rehydration

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Selecting flagship species to solve a biodiversity conservation conundrum

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Plant Diversity 2020年第6期42卷 488-491页

作者： Jie Qian Huifu Zhuang Weikang Yang Yifeng Chen Shilong Chen Yanhua Qu yuanming zhang Yongping Yang Yuhua Wang Kunming Institute of Botany Chinese Academy of Sciences132 Lanhei RoadKunming650201YunnanChina Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences818 South Beijing RoadUrumqi830011XinjiangChina Northwest Institute of Plateau Biology Chinese Academy of Sciences23 Xinning RoadXining810008QinghaiChina Institute of Hydrobiology Chinese Academy of Sciences7 Donghu South RoadWuhan430072HubeiChina Institute of Zoology Chinese Academy of Sciences1 Beichen West RoadChaoyang DistrictBeijing100101China

The difficulty of effectively monitoring and managing the environment to conserve biodiversity is as yet an unsolved conundrum.A project of the Chinese Academy of Sciences has concluded that progress can be made through the use of flagship species selected using criteria drawn from conservation biology,ecosystem function,socio-economics,and cultural *** of the latter three criteria will help attract and maintain the commitment of the public to play full parts in carrying out any conservation measures needed.A system is proposed for scoring species to select those that are most suitable as *** method can be used regardless of the size of the area chosen for attention,whether it is a region,a country,or a particular protected area.

关键词： Flagship species Selection criteria Biodiversity conservation Proposed program

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Hemin blocks TIGIT/PVR interaction and induces ferroptosis to elicit synergistic effects of cancer immunotherapy

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Science China(Life Sciences) 2024年第5期67卷 996-1009页

作者： Xiaowen Zhou Yang Li Xiangrui zhang Beibei Li Shengzhe Jin Menghan Wu Xiuman Zhou Qingyu Dong Jiangfeng Du Wenjie Zhai Yahong Wu Lu Qiu Guodong Li yuanming Qi Wenshan Zhao Yanfeng Gao School of Life Sciences Zhengzhou UniversityZhengzhou 450001China School of Pharmaceutical Sciences(Shenzhen) Shenzhen Campus of Sun Yat-sen UniversityShenzhen 518107China

The immune checkpoint TIGIT/PVR blockade exhibits significant antitumor effects through activation of NK and CD8^(+)T cell-mediated *** checkpoint blockade(ICB)could induce tumor ferroptosis through IFN-γreleased by immune cells,indicating the synergetic effects of ICB with ferroptosis in inhibiting tumor ***,the development of TIGIT/PVR inhibitors with ferroptosis-inducing effects has not been explored *** this study,the small molecule Hemin that could bind withTIGIT to block TIGIT/PVR interaction was screened by virtual molecular docking and cell-based blocking *** could effectively restore the IL-2 secretion from Jurkat-hTIGIT *** reinvigorated the function of CD8^(+)T cells to secrete IFN-γand the elevated IFN-γcould synergize with Hemin to induce ferroptosis in tumor *** inhibited tumor growth by boosting CD8^(+)T cell immune response and inducing ferroptosis in CT26 tumor *** importantly,Hemin in combination with PD-1/PD-L1 blockade exhibited more effective antitumor efficacy in anti-PD-1 resistant B16 tumor *** summary,our finding indicated that Hemin blocked TIGIT/PVR interaction and induced tumor cell ferroptosis,which provided a new therapeutic strategy to combine immunotherapy and ferroptosis for cancer treatment.

关键词： cancer immunotherapy TIGIT/PVR small molecule Hemin ferroptosis

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Quantitative classification and analysis on plant communities in the middle reaches of the Tarim River

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Journal of Geographical Sciences 2003年第2期13卷 225-232页

作者： zhang yuanming,CHEN Yaning,zhang Daoyuan(Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China) Xinjiang Institute of Ecology and Geography CAS Urumqi 830011

Plant communities were sampled in the lower reaches of the Tarim River, Xinjiang. The results showed that there are 23 species belonging to 21 genera in 11 families, most of which have low occurrence frequency in quadrats. The most common species is Tamarix ramosissima, which occurred in 17 sites accounting for 89.47% of the total 19 sites. Quantitative classification (TWINSPAN) and ordination (CCA) methods were used to study the distribution patterns of 23 plant species in 19 sites in this valley. TWINSPAN results showed that the plant communities in the middle reaches of the Tarim River could be divided into 3 groups and the sampling sites could be divided into 7 types in 3 groups. CCA results were consistent with TWINSPAN results, and showed species distribution patterns correlated with major environmental variables of groundwater level and soil moisture.

关键词： TWINSPAN CCA plant communities environmental factors the Tarim River CLC number:Q948.11

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Preparation of Kenaf Biochar and Its Adsorption Properties for Methylene Blue

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Journal of Renewable Materials 2023年第3期11卷 1352-1352页

作者： Xin Wan Zhigang Xia Xiaoli Yang Chengfeng Zhou yuanming zhang Haoxi Ben Guangting Han Wei Jiang Qingdao Univ Coll Text Qingdao 266000 Peoples R China Qingdao Univ State Key Lab Biofibers & Ecotext Qingdao 266071 Peoples R China Wuhan Text Univ State Key Lab New Text Mat & Adv Proc Technol Wuhan 430000 Peoples R China Wuhan Text Univ Minist Educ Key Lab Text Fiber & Prod Wuhan 430200 Peoples R China

The fourth author’s name in the original paper was incorrectly spelled as“Chenfeng Zhou”.The corrected spelling of the fourth author’s name is“Chengfeng Zhou”.The authors apologize for this error,which has now b... 详细信息

关键词： corrected Adsorption error

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琵琶柴和沙拐枣茎的木质部结构的差异性及空间变异特征

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干旱区研究 2023年第12期40卷 1996-2006页

作者：沈辉张静彭兰陶冶臧永新张元明中国科学院新疆生态与地理研究所荒漠与绿洲生态国家重点实验室干旱区生态安全与可持续发展重点实验室新疆乌鲁木齐830011 中国科学院大学北京100093 中国科学院新疆生态与地理研究所新疆植物基因资源保护与利用重点实验室新疆乌鲁木齐830011 新疆大学生态与环境学院新疆乌鲁木齐830011

木质部结构性状是植物适应不同水分条件的基础,也是植物响应环境条件变化的核心属性之一。以西北荒漠区的典型灌木琵琶柴(Reaumuria soongarica)和沙拐枣(Calligonum mongolicum)为研究对象,对其木质部结构和水力功能性状进行对比分析,... 详细信息

木质部结构性状是植物适应不同水分条件的基础,也是植物响应环境条件变化的核心属性之一。以西北荒漠区的典型灌木琵琶柴(Reaumuria soongarica)和沙拐枣(Calligonum mongolicum)为研究对象,对其木质部结构和水力功能性状进行对比分析,以期了解同一生境中不同物种的差异性或相似性,以及同一物种在不同环境条件下的木质部结构性状的可塑性。结果表明:(1)琵琶柴和沙拐枣的木质部结构性状存在显著差异,沙拐枣平均导管直径、脆弱性指数显著高于琵琶柴,而导管密度、导管分组指数则相反。(2)琵琶柴和沙拐枣的木质部结构性状随气候变化的规律具有差异,随年均降水量和干旱指数的增加,沙拐枣的平均导管直径与导管厚跨比显著下降,而琵琶柴的平均导管直径与导管厚跨比与之无关,仅理论导水率与年均降水量和干旱指数呈显著正相关关系。(3)琵琶柴木质部导水系统存在效率与安全的权衡,而沙拐枣中没有表现出效率和安全的权衡关系。(4)性状网络分析结果表明,琵琶柴和沙拐枣的中心性状均为平均导管直径,平均导管直径的变化介导了性状网络的变化。琵琶柴和沙拐枣的木质部结构性状存在显著差异,相对于沙拐枣,琵琶柴水分利用策略更加保守。

关键词：优势灌木琵琶柴沙拐枣木质部结构植物性状网络气候因素生态适应策略

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饲粮中添加谷氨酰胺对安哥拉兔肠道微生物结构的影响

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动物营养学报 2023年第6期35卷 3902-3909页

作者：李玉娟张原铭张北育李福昌刘磊山东农业大学动物科技学院泰安271018 农业农村部非粮食饲料资源高效利用重点实验室(部省共建) 泰安271018 山东省动物生物技术与疾病预防控制重点实验室泰安271018

为探究谷氨酰胺对安哥拉兔肠道菌群结构和多样性的影响,本试验选取8月龄体重、产毛量相近的安哥拉兔12只,随机分为2组,每组6个重复,每个重复1只兔。对照组饲喂基础饲粮,谷氨酰胺组在基础饲粮中添加0.9%谷氨酰胺,饲喂1个剪毛周期后,采集... 详细信息

为探究谷氨酰胺对安哥拉兔肠道菌群结构和多样性的影响,本试验选取8月龄体重、产毛量相近的安哥拉兔12只,随机分为2组,每组6个重复,每个重复1只兔。对照组饲喂基础饲粮,谷氨酰胺组在基础饲粮中添加0.9%谷氨酰胺,饲喂1个剪毛周期后,采集各试验兔新鲜粪便样品,采用Illumina MiSeq测序平台进行肠道菌群16S RNA高通量测序分析。结果表明:与对照组相比,饲粮中添加0.9%谷氨酰胺后,安哥拉兔肠道菌的Chao指数、Shannon指数显著提高(P<0.05)。在门水平上,家兔肠道中优势菌门为厚壁菌门(Firmicutes)、拟杆菌门(Bacteroidetes)、髌骨细菌门(Patescibacteria)和放线菌门(Actinobacteria);与对照组相比,饲粮中添加谷氨酰胺能显著降低厚壁菌门的相对丰度(P<0.05)。在属水平上,家兔肠道内优势菌属为g_norank_f_Muribaculaceae、瘤胃球菌属(Ruminococcus)和瘤胃球菌科NK4A214群(Ruminococcaceae_NK4A214_group);与对照组相比,饲粮中添加谷氨酰胺显著降低瘤胃球菌属、梭菌属UCG-014(Clostridia_UCG-014)相对丰度(P<0.05),显著提高果胶降解菌属(Monoglobus)相对丰度(P<0.05)。由此可见,饲粮中添加谷氨酰胺可改善肠道微生物区系丰度,降低有害菌数量,提高了肠道的健康水平。

关键词：谷氨酰胺安哥拉兔肠道菌群

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Numerical Analysis for Temperature Characteristics of Open Boundary Crushed-rock Embankment on Qinghai-Tibet Railway

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工程科学（英文版） 2006年第2期4卷 134-142页

作者： Lai yuanming zhang Mingyi Liu Zhiqing Yu Wenbing State Key Laboratory of Frozen Soil Engineering Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000

At present, in order to protect the stability of permafrost beneath emban kment, the crushed-rock emban kment, as a new type of emban kment structure, has widely been used in the construction of Qinghai-Tibet Railway. Its crushed-rock layer is almost open in tow bilateral boundaries and closed at top and bottom, and air can flow into/out of the ballast layer and crushed-rock layer. Therefore, the convection and transfer heat patterns are very complicated in the ballast layer and crushed-rock layer of the emban kment, which are regarded as porous media. In this paper, based on the wind, temperature and geology conditions of Qinghai-Tibet Plateau, a numerical approach of the unsteady two-dimensional continuity, momentum (non-Darcy flow) and energy equations of heat convection for incompressible fluid in porous media is provide to analyse the velocity and temperature characteristics of the crushed-rock emban kment with different emban kment heights under open boundary condition for the coming 50 years. The calculated results indicate that, due to the influence of the external wind, the convective heat transfer mainly relies on the forced convection in the open crushed-rock emban kment. Even if the air temperature will be warmed up by 2.6℃ in the coming 50 years, it still has a better cooling effect on the underlying soils and a low temperature frozen-soil core is formed in the permafrost below it if the emban kment is constructed in the regions whose present mean annual air temperature is -4.0℃. Furthermore, the cooling effect of high crushed-rock emban kment is better than that of low emban kment. This results from the fact that the wider bottom of high emban kment has a more influence dimension on the underlying frozen soil. However, cardinal winds on Qinghai-Tibet Plateau disturb its convection pattern, so that an asymmetric temperature distribution occurs under high emban kment and it is possible to induce a transverse uneven deformation of emban kment, but no simi

关键词：青藏铁路开放边界碎石堤防温度特性数值分析

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降水对古尔班通古特沙漠细菌群落多样性和构建过程的影响

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生物多样性 2023年第2期31卷 137-150页

作者：杜芳荣晓莹徐鹏尹本丰张元明中国科学院新疆生态与地理研究所荒漠与绿洲生态国家重点实验室乌鲁木齐830011 中国科学院大学北京100049

明确荒漠降水对细菌群落多样性和群落构建过程的影响,有助于进一步认识荒漠土壤细菌群落结构和功能对降水变化的响应及反馈机制。基于古尔班通古特沙漠区域降水梯度上的土壤细菌群落高通量测序数据,比较分析了降水差异对总细菌、高丰度... 详细信息

明确荒漠降水对细菌群落多样性和群落构建过程的影响,有助于进一步认识荒漠土壤细菌群落结构和功能对降水变化的响应及反馈机制。基于古尔班通古特沙漠区域降水梯度上的土壤细菌群落高通量测序数据,比较分析了降水差异对总细菌、高丰度及低丰度细菌类群多样性和群落组成的影响,使用零模型(null model)方法分析确定性过程和随机性过程对细菌群落构建的相对重要性。结果表明:绿弯菌门是高丰度与低丰度细菌类群优势细菌门。沿降水梯度总细菌和高丰度细菌类群的丰富度及Shannon多样性指数无显著差异,随降水减少,低丰度细菌类群的丰富度和Shannon多样性显著降低(P<0.05);降水差异显著影响不同丰度细菌类群的群落组成,且沿降水梯度,低丰度细菌的群落变异与物种空间周转大于高丰度与总细菌类群,表明荒漠不同丰度细菌类群差异响应区域小范围降水梯度,低丰度细菌类群对区域降水变化具有强敏感性,而总细菌和高丰度细菌类群对降水变化具有较强的抵抗力;零模型分析显示,扩散限制主导古尔班通古特沙漠不同降水样点细菌的群落构建过程,而荒漠低丰度细菌类群同时还受到强的异质选择作用(43.0%),表明荒漠降水差异增强了低丰度细菌的环境选择作用或者生物间的竞争作用。另外,空间地理距离决定了不同降水梯度总细菌群落的构建过程,而年均降水量对平衡低丰度细菌类群的确定性过程与随机性过程的相对重要性具有重要作用。综上所述,古尔班通古特沙漠小尺度的降水差异显著改变了荒漠表层土壤的细菌群落组成,低丰度细菌敏感响应小尺度范围的降水差异,有助于减缓荒漠细菌对环境变化响应的滞后性;扩散限制对总细菌和高丰度细菌β多样性的决定作用比对低丰度细菌强,显示空间地理距离对荒漠总细菌和高丰度细菌的物种周转解释率高于低丰度细菌,而荒漠低丰度细菌的多样性分布和生态位偏好除受到空间地理尺度的影响外,还具有更强的降水依赖性。

关键词：温带荒漠年均降水量高丰度细菌低丰度细菌群落构建

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氮添加对新疆野苹果幼苗枝叶大小的影响

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干旱区研究 2022年第1期39卷 210-219页

作者：华兆晖陶冶闫景明周晓兵张静张元明中国科学院新疆生态与地理研究所荒漠与绿洲生态国家重点实验室新疆乌鲁木齐830011 石河子大学生命科学学院新疆石河子832003 安庆师范大学生命科学学院/皖西南生物多样性研究与生态保护安徽省重点实验室安徽安庆246133

新疆野苹果(Malus sieversii)是全世界栽培苹果的祖先之一,也是我国重要的战略性植物种质资源,但目前其种群退化严重,对新疆野苹果进行保育需要了解其对氮添加的响应。对不同水平氮添加处理的新疆野苹果幼苗小枝的枝叶大小性状进行单因... 详细信息

新疆野苹果(Malus sieversii)是全世界栽培苹果的祖先之一,也是我国重要的战略性植物种质资源,但目前其种群退化严重,对新疆野苹果进行保育需要了解其对氮添加的响应。对不同水平氮添加处理的新疆野苹果幼苗小枝的枝叶大小性状进行单因素方差分析以及异速生长分析,以探明新疆野苹果对氮添加处理的响应,为种群恢复提供理论基础。结果表明:(1)中氮处理对小枝茎的伸长有显著促进作用,且显著降低了野苹果叶面积比率以及叶茎质量比;高氮处理显著降低了野苹果的出叶强度。(2)氮添加对新疆野苹果枝叶之间的增速以及分配格局的影响不是体现在生物量上,而是体现在枝叶形态上,枝长-总叶面积和枝长-叶片数量性状对低中氮处理曲线的增速显著性增长。低、中氮处理组更偏向生长更多叶面积较小而轻的叶片,而高氮处理下的变化趋势不同于低、中氮处理。(3)适当添加氮肥可改善枝叶生长状况和枝叶功能性状相互关系,建议在开展野苹果幼苗原生境移植过程中,考虑生境之间的养分差异并进行针对性氮肥添加。

关键词：新疆野苹果氮添加枝叶关系异速生长关系功能性状

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