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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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Overcompensation or limitation to photosynthesis and root hydraulic conductance altered by Rehydration in seedlings of sorghum and maize

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The Crop Journal 2017年第4期5卷 337-344页

作者： Nan Wang Jing Gao Suiqi Zhang Shaanxi Collaborative Innovation Center of Chinese Medicinal Resources Industrialization Shaanxi University of Chinese Medicine Xianyang 712083 China College of Pharmacy Shaanxi University of Chinese Medicine Xianyang 712046 China Institute of Soil and Water Conservation Northwest A&F University Yangling 712100 China

In view of the prospect of irregular extremes of high and low rainfall due to climate change, the mechanisms underlying plant responses to periods of drought and re-watering need to be understood. Sorghum (Sorghum bicolor L.) and maize (Zea mays L.) were grown in pots of loess soil at three soil moisture levels to examine the effects of different levels of drought over 10 days and plant responses to re-watering (5 days of Rehydration). Photosynthesis-related traits recovered rapidly both in sorghum and maize on re-watering, suggesting that photosynthetic function was not severely damaged after a short drought period, although the values of these traits were dramatically reduced during drought per se. However, the two species differed in the extent to which they recovered from severe stress. In sorghum, net photosynthetic rate (P_n), stomatal conductance (G_s), and maximum photochemical efficiency of PSII (F_v/F_m) returned to control levels after re-watering. However, in maize, these parameters exceeded control levels after re-watering. Both overcompensation and pre-drought limitation were observed. Over a range of growth conditions, close relationships between G_s and root hydraulic conductance (K_r) were observed in pooled data sets. P_n, K_r, and their related characteristics were compared among species and treatments. Our results showed that the recovery of K_r is similar between sorghum and maize, at least after a short time of re-watering, although the two species differ in drought-tolerance capacity. Our results also suggest that sorghum can endure moderate drought by adjusting certain traits, but is still as vulnerable as maize under severe drought stress.

关键词： Adaptive mechanism Dehydration Recovery Hydraulic traits Rehydration

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Maintenance of mesophyll potassium and regulation of plasma membrane H^+-ATPase are associated with physiological responses of tea plants to drought and subsequent Rehydration

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The Crop Journal 2018年第6期6卷 611-620页

作者： Xianchen Zhang Honghong Wu Linmu Chen Linlin Liu Xiaochun Wan State Key Laboratory of Tea Plant Biology and Utilization Anhui Agricultural University Department of Botany and Plant Sciences University of California

Drought stress is one of the main factors limiting yield in tea plants. The plant cell's ability to preserve K^+homeostasis is an important strategy for coping with drought stress. Plasma membrane H^+-ATPase in the mesophyll cell is important for maintaining membrane potential to regulate K^+transmembrane transport. However, no research to date has investigated the possible relationship between plasma membrane H^+-ATPase and mesophyll K^+retention in tea plants under drought and subsequent Rehydration conditions. In our experiment, drought stress inhibited plasma membrane H^+-ATPase activities and induced net H^+influx, leading to membrane potential depolarization and inducing a massive K^+efflux in tea plant mesophyll cells. Subsequent Rehydration increased plasma membrane H^+-ATPase activity and induced net H^+efflux, leading to membrane potential hyperpolarization and thus lowering K^+loss. A first downregulated and then upregulated plasma membrane H^+-ATPase protein expression level was also observed under drought and subsequent Rehydration treatment, a finding in agreement with the change of measured plasma membrane H^+-ATPase activities. Taken together, our results suggest that maintenance of mesophyll K^+in tea plants under drought and Rehydration is associated with regulation of plasma membrane H^+-ATPase activity.

关键词： Drought stress H^+-ATPase Membrane potential Potassium Rehydration

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Investigation of mechanism in Response to Rehydration for Nostoc flagelliforme based on quantitative proteomics

Investigation of mechanism in Response to Rehydration for No...

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2018年中国质谱学术大会（CMSC2018）

作者： Bing Wang Jingjing Yang Cuihong Wan Hubei Key Lab of Genetic Regulation & Integrative Biology School of Life SciencesCentral ChinaNormal University

To adapt to xeric environments, microorganisms have evolved with the capability of the superior desiccation tolerance and rapid resuscitation after Rehydration. N. flagelliforme, a representative terrestrial cyanobacterium that is distributed in west and west-northern parts of China, serves as an ideal model for gaining insight in the physiological recovery mechanism. In this study, LC-MS/MS combined with isobaric chemical labeling technique(i TRAQ) was used to quantify dynamic changes of proteins in N. flagelliforme during the Rehydration processes. Approximately 113 proteins were identified to be di□erentially expressed, with function mainly related to photosynthesis, defense response, biosynthesis, antioxidant system, and energy and carbohydrate metabolism. Among them, protective proteins including high light inducible proteins and antioxidants showed a down regulation trend during the Rehydration process, while proteins involved in photosynthesis, biosynthesis and signaling pathways and regulation of gene expression tend to be up-regulated. Signaling through Ser/Thr/Tyr phosphorylation has emerged as an important regulatory mechanism in cyanobacteria to sense environmental signals and implement adaptive changes. Furthermore, dynamic changes in transcription and protein levels have been studied, but what takes place in the extracellular environment to cope with changing environmental conditions and survive in various harsh environments remains largely unknown. Therefore, quantitative and qualitative analysis of the phosphorylated proteome and extracellular proteome were also performed. These results might shed light on molecular mechanism for the N.flagelliforme response to hydration.

关键词： Nostoc flagelliforme Rehydration iTRAQ phosphorylation extracelluar protein desiccation tolerance

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Potassium and post-exercise Rehydration

Potassium and post-exercise rehydration

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2008奥林匹克科学大会

作者： Shirreffs,Susan Georgalla,Florentia Irwin,Deborah Loughborough University

Introduction It is well established that for effective and efficient post-exercise Rehydration,an appropriate water volume must be consumed(ShirrefFs et al,1996) and the sodium lost in the sweat mu

ISBN: (纸本)9787500934936

Introduction It is well established that for effective and efficient post-exercise Rehydration,an appropriate water volume must be consumed(ShirrefFs et al,1996) and the sodium lost in the sweat mu

关键词： Potassium Rehydration Intracellular Space volume of water Extracellular Space Sweating Sodium electrolytes

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Effects of metered vs.bolus water consumption on urine production and Rehydration

Effects of metered vs.bolus water consumption on urine produ...

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2008奥林匹克科学大会

作者： Bishop,Phillip Jones,Eric Green,James University of Alabama USA Stephen F.Austin State University USA

Introduction Hypohydration before,during,and after exercise can greatly hinder performance as well as threaten the health of athletes.Successful Rehydration is a function of the volume of fluid con

ISBN: (纸本)9787500934936

Introduction Hypohydration before,during,and after exercise can greatly hinder performance as well as threaten the health of athletes.Successful Rehydration is a function of the volume of fluid con

关键词： Rehydration water consumption LOSS OF FLUIDS Fluid Water utilization Urine Volume Beverages

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The interplay between leaf water potential and osmotic adjustment on photosynthetic and growth parameters of tropical dry forest trees

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Journal of Forestry Research 2023年第1期34卷 177-186页

作者： Tiago de Sousa Leite Romulo Magno Oliveira de Freitas Nildo da Silva Dias Jeferson Luiz Dallabona Dombroski Narjara Walessa Nogueira Federal University of Mato Grosso CuiabáMTBrazil Federal Institute of Education Science and Technology of Rio Grande do NortePau dos FerrosRNBrazil Federal Rural University of the Semi-Arid Region MossoróRNBrazil

Mimosa tenuiflora and Piptadenia stipulacea are commonly accepted as drought-tolerant species but little is known about their response to drought followed by Rehydration.Therefore,the interplay between leaf water potential and osmotic adjustment on photo synthetic and growth parameters of these species was examined.A greenhouse study was conducted in a split-plot design with two water conditions in the main plots(control;drought followed by Rehydration),and eight sampling times in the subplots(1,4and 7 days of drought,and 1,3,6,12,and 17 days of Rehydration).Plant water status and biochemical changes were assessed as well as leaf gas exchange and subsequent growth.Under drought stress,both species maintained a low leaf water potential throughout the day by accumulating compatible solutes,thus allowing a rapid and full recovery of water status when rehydrated.Although these plants minimized water loss by closing their stomata,neither showed stomatal limitations to photosynthesis.The inhibition of this process during drought was possibly related to mesophyll limitations as well as to a reversible downregulation of photo systems,along with adjustments of their stoichiometry.Water deficits also triggered morphological adaptations at the whole plant level,leading to reduced growth,mainly of the shoots in M.tenuiflora and the roots in P.stipulacea.

关键词： Drought stress Rehydration Gas exchange Plant biomass

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Rehydration and Phase Transformation of Aluminas

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石油学报（石油加工） 1997年第S1期13卷 108-112页

作者： Zhang Minghai, Li Guanghui, Ye Gang (Research Institute of Petroleum Processing, Beijing 100083)

ＲｅｈｙｄｒａｔｉｏｎａｎｄＰｈａｓｅＴｒａｎｓｆｏｒｍａｔｉｏｎｏｆＡｌｕｍｉｎａｓＺｈａｎｇＭｉｎｇｈａｉ，ＬｉＧｕａｎｇｈｕｉ，ＹｅＧａｎｇ（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｏｆＰｅｔｒｏｌｅｕｍＰｒｏｃｅｓ... 详细信息

ＲｅｈｙｄｒａｔｉｏｎａｎｄＰｈａｓｅＴｒａｎｓｆｏｒｍａｔｉｏｎｏｆＡｌｕｍｉｎａｓＺｈａｎｇＭｉｎｇｈａｉ，ＬｉＧｕａｎｇｈｕｉ，ＹｅＧａｎｇ（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｏｆＰｅｔｒｏｌｅｕｍＰｒｏｃｅｓｉｎｇ，Ｂｅｉｊｉｎｇ１０００８３...

关键词： alumina Rehydration phase transformation boehmite corundum

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Safety and Feasibility of Oral Rehydration Solution Prior to Endoscopic Retrograde Cholangiopancreatography

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Surgical Science 2015年第3期6卷 91-99页

作者： Takamitsu Sasaki Daisuke Kato Ryohei Sakamoto Satoshi Shinya Hironari Shiwaku Kanefumi Yamashita Ryo Nakashima Yuichi Yamashita Department of Gastroenterological Surgery Fukuoka University School of Medicine Fukuoka Japan

Purpose: The safety of oral Rehydration therapy before endoscopic screening with respect to vital signs and complications after the screening procedure was assessed in patients undergoing endoscopic retrograde cholangiopancreatography (ERCP). Methods: A total of 107 patients scheduled for ERCP were assigned to either the intravenous drip injection (DIV) group during fasting (56 patients) or ORS group given oral Rehydration solution (51 patients) prior to endoscopy. Vital signs after ERCP, including blood pressure and temperature, blood biochemical data and the incidence of post-ERCP complications were compared between the groups. Results: No cases of aspiration pneumonia were detected in either groups. Moreover, there were no statistically significant differences between the DIV group and ORS group in terms of the biochemical data and vital signs after ERCP. The intergroup difference in the development of pancreatitis after ERCP was 2.3% [95% CI: ?5.7, 10.3], which was not statistically significant. Conclusions: The safety of oral Rehydration therapy was found to be equivalent to that of the customary practice of infusion as a method for managing hydration and replenishing electrolytes in patients receiving ERCP. Oral Rehydration therapy may be easily utilized as Rehydration therapy prior to endoscopic screening for ERCP and other procedures.

关键词： Endoscopic Retrograde Cholangiopancreatography Oral Rehydration Therapy Oral Rehydration Solution Post-ERCP Pancreatitis Complication

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Correspondence: Newer oral Rehydration solution OS-1 for emesis gravidarum

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Health 2012年第5期4卷 277-278页

作者： Atsushi Imai Kazutoshi Matsunami Hiroshi Takagi Satoshi Ichigo Department of Obstetrics and Gynecology Matsunami General Hospital Gifu Japan

Though nausea and vomiting are quite common in pregnancy, hyperemesis is found in only 1 - 2 patients per 100. Appropriate oral fluid and electrolyte replacement is the initial treatment regimen for patients with mild to moderate emesis to avoid hyperemesis gravidarum defined as dehydration, electrolyte unbalance and ketosis. A newer oral Rehydration solution OS-1 therapy may be safe and feasible in the mild to moderate emesis gravidarum population. Physicians are encouraged to use this practice to maintain the amount of water in the body and electrolytes and to improve the patient’s comfort.

关键词： Hyperemesis Gravidarum Nausea and Vomiting During Pregnancy Oral Rehydration Solution OS-1

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