Article(id=1309573257385304233, tenantId=1146029695717560320, journalId=1308397196074385509, issueId=1309573247344144835, articleNumber=null, orderNo=null, doi=10.11733/j.issn.1007-0435.2026.04.014, pmid=null, cstr=null, oa=null, hot=0, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1745424000000, receivedDateStr=2025-04-24, revisedDate=1753372800000, revisedDateStr=2025-07-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1790156195255, onlineDateStr=2026-09-23, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790156195255, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790156195255, creator=13701087609, updateTime=1790156195255, updator=13701087609, issue=Issue{id=1309573247344144835, tenantId=1146029695717560320, journalId=1308397196074385509, year='2026', volume='34', issue='4', pageStart='1137', pageEnd='1556', issueExtLink='null', onlineDate='null', pubDate='1776182400000', pubDateStr='2026-04-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790156192860, creator='13701087609', updateTime=1790156800047, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309575794117144683, tenantId=1146029695717560320, journalId=1308397196074385509, issueId=1309573247344144835, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309575794117144684, tenantId=1146029695717560320, journalId=1308397196074385509, issueId=1309573247344144835, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1288, endPage=1301, ext={EN=ArticleExt(id=1309573257704071339, articleId=1309573257385304233, tenantId=1146029695717560320, journalId=1308397196074385509, language=EN, title=Research on the Response of Root System Configuration, Physiology and Anatomical Structure of Seriphidium transiliense Seedlings under Drought Stress, columnId=null, journalTitle=Acta Agrestia Sinica, columnName=null, runingTitle=null, highlight=null, articleAbstract=In this study, we used S. transiliense seedlings as a research object and conducted a pot experiment with continuous drought stress to systematically investigate the dynamic changes in root system morphology, physiological response and anatomical structure. The results showed that with the increass of drought stress intensity, root system morphology changed significantly, with a decrease in topological index and fractal dimension, and a shift in root branching patterns towards a more efficient “dendritic” structure. At the physiological level, there was a significant accumulation of reactive oxygen species (ROS), increase in membrane lipid peroxidation and enhanced ability to regulate osmosis. Antioxidant enzyme activity showed a trend of increasing first and then decreasing. The anatomical structure analysis revealed that the root tip epidermal and endodermal cells thickened to enhance water-holding capacity, while the cortical parenchyma, vascular system and root tip diameter all showed a decreasing trend to optimize water transport efficiency. This study revealed the adaptive strategy of S. transiliense by integrating root system configuration plasticity, physiological regulation, and anatomical structure optimization, providing a scientific basis for studying the drought resistance mechanisms of desert plants and also offering an important reference for ecological restoration and breeding in arid areas., authors=ZHANG Hao-hao1, ZHANG Yong-qiang1, JIANG Ang-chen1, CHEN Ai-ping1, authorsList=ZHANG Hao-hao, ZHANG Yong-qiang, JIANG Ang-chen, CHEN Ai-ping, authorCompany=1 College of Grassland Science, Xinjiang Agricultural University, Key Laboratory for Western Arid Region Grassland Resources and Ecology, Ministry of Education, Xinjiang Key Laboratory of Grassland Resources and Ecology, Urumqi, Xinjiang 830000, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1309573257636962474, articleId=1309573257385304233, tenantId=1146029695717560320, journalId=1308397196074385509, language=CN, title=干旱胁迫下伊犁绢蒿幼苗根系的构型、生理与解剖结构响应研究, columnId=1309565024058835950, journalTitle=草地学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=本研究以伊犁绢蒿(Seriphidium transiliense)幼苗为研究对象,通过持续干旱胁迫盆栽实验,系统探究了根系形态构型、生理响应及解剖结构的动态变化规律。结果表明:随着干旱胁迫强度的增加,根系形态拓扑指数和分形维数逐渐降低,根系分支模式向更高效的叉状结构转变。随着干旱胁迫增强,生理代谢层面,活性氧积累、膜脂过氧化程度及渗透调节能力显著增强,抗氧化酶活性呈现先升高后降低的趋势。解剖结构分析显示,根尖的表皮和内皮层细胞增厚以增强保水能力,而皮层薄壁组织、维管系统及根尖直径均呈现减小趋势,以优化水分运输效率。本研究揭示了伊犁绢蒿通过整合根系构型可塑性、生理调控及解剖结构优化的适应策略,为荒漠植物抗旱机制研究提供了科学依据,同时为干旱区生态恢复及抗逆种质选育提供了重要参考。, authors=张浩浩1, 张永强1, 蒋昂辰1, 陈爱萍1, authorsList=张浩浩, 张永强, 蒋昂辰, 陈爱萍, authorCompany=1 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Effects of PEG simulated drought stress on root physiology of Seriphidium transiliense seedlings at different ages[J]. Pratacultural Science, 2025, 42(1): 129-139 张永强, 韩喆, 于爱萍, 等. PEG模拟干旱胁迫对不同苗龄伊犁绢蒿幼苗根系生理的影响[J]. 草业科学, 2025, 42(1): 129-139 WANG F L, CHAI C W, ZHAO P, et al. Photosynthetic and chlorophyll fluorescence responses of three desert species to drought stress and evaluation of drought resistance[J]. Acta Botanica Boreali-Occidentalia Sinica, 2021, 41(10): 1755-1765 王方琳, 柴成武, 赵鹏,等. 3种荒漠植物光合及叶绿素荧光对干旱胁迫的响应及抗旱性评价[J]. 西北植物学报, 2021, 41(10): 1755-1765 ZHOU G X,CHEN Y N,YAO J Q. Variations in precipitation and temperature in Xinjiang (Northwest China) and their connection to atmospheric circulation[J]. Frontiers in Environmental Science, 2023, 10: 1082713 CHEN X,LUO G P,XIA J,et al. Ecological response to the climate change on the northern slope of the Tianshan Mountains in Xinjiang[J]. Science in China Series D:Earth Sciences, 2005, 48(6): 765-777 SUN F,WANG Y,CHEN Y N,et al. Historic and simulated desert-oasis ecotone changes in the arid Tarim River Basin,China[J]. Remote Sensing, 2021, 13(4): 647 JIA R L,ZHAO Y,GAO Y H,et al. Antagonistic effects of drought and sand burial enable the survival of the biocrust moss Bryum argenteum in an arid sandy desert[J]. Biogeosciences, 2018, 15(4): 1161-1172 LATIFFEIKE N, HU J J, WANG H. Research progress on drought resistance of forage[J]. Journal of Grassland and Forage Science, 2021(5):1-10 努尤甫提·拉提非克, 胡金娇, 汪辉. 牧草抗旱性研究进展[J]. 草学, 2021(5): 1-10 GAO H J. Analysis of differentially expressed genes of Haloxylon ammodendron adapting tosimulated drought and functionalidentification of HaASR[D]. Lanzhou:Lanzhou University, 2019:1-2 高慧娟. 梭梭适应模拟干旱的差异表达基因分析及HaASR基因的功能鉴定[D]. 兰州: 兰州大学, 2019:1-2 AUGSTEIN F,CARLSBECKER A. Getting to the roots: a developmental genetic view of root anatomy and function from Arabidopsis to lycophytes[J]. Frontiers in Plant Science, 2018, 9: 1410 ZHANG X X,WHALLEY P A,ASHTON R W,et al. A comparison between water uptake and root length density in winter wheat: effects of root density and rhizosphere properties[J]. Plant and Soil, 2020, 451(1): 345-356 OROSA-PUENTE B, LEFTLEY N, WANGENHEIM V D, et al.Root branching toward water involves posttranslational modification of transcription factor ARF7[J]. Science, 362(6421) :1407-1410 GERMAN D A, CHEN W L, SMIRNOV S V, et al. Plant Genera and species new to China recently found in northwest Xinjiang[J]. Nordic Journal of Botany, 2012, 30(1): 61-69 HAN Z, ZHANG Y Q, ZHANG H H, et al. Effects of drought stress on growth and leaf anatomical structure of Seriphidium transiliense seedlings[J]. Acta Agrestia Sinica, 2024, 32(1): 105-112 韩喆, 张永强, 张浩浩, 等. 干旱胁迫对伊犁绢蒿幼苗生长及叶片解剖结构的影响[J]. 草地学报, 2024, 32(1): 105-112 BADEMUQIQIGE,SUN Z J,LI P Y,et al. The effect of harvest time on seed germination characteristics of Seriphidium transiliense in northern Xinjiang,China[J]. Seed Science and Technology, 2018, 46(1): 139-147 FENG Z P,KONG D L,KONG Y H,et al. Coordination of root growth with root morphology,physiology and defense functions in response to root pruning in Platycladus orientalis[J]. Journal of Advanced Research, 2022, 36: 187-199 LOU K E, QU W J, WANG L, et al. Root architecture characteristics of four dominant annual herbs in Tengger Desert, China[J]. Chinese Journal of Applied Ecology, 2024, 35(11): 3015-3022 楼科尔, 曲文杰, 王磊, 等. 腾格里沙漠地区4种优势一年生草本植物根构型特征[J]. 应用生态学报, 2024, 35(11): 3015-3022 LI H S. Plant physiologicalLI and biochemical experiment principle and technology[M]. Beijing: Higher Education Press, 2000:267-268 李合生. 植物生理生化实验原理和技术[M]. 北京:高等教育出版社,2000:267-268 ZHANG Z L. Plant physiology experiment instruction [M]. 2 Edition. Beijing: Higher Education Press, 1990:133-135 张志良. 植物生理学实验指导[M]. 第2版. 北京:高等教育出版社,1990:133-135 KONG X S, YI X F. Plant Physiology Experiment Technology[M].Beijing: China Agriculture Press, 2008:252-253 孔祥生, 易现峰. 植物生理学实验技术[M]. 北京:中国农业出版社,2008:252-253 ZOU Q. Plant Physiology Experiment Instruction[M]. Beijing: China Agriculture Press, 2000:252-253 邹琦. 植物生理学实验指导[M]. 北京:中国农业出版社,2000:252-253 GIANNOPOLITIS C N,RIES S K. Superoxide dismutases: I. occurrence in higher plants[J]. Plant Physiology, 1977, 59(2): 309-314 DE AZEVEDO NETO A D,PRISCO J T,ENÉAS-FILHO J,et al. Hydrogen peroxide pre-treatment induces salt-stress acclimation in maize plants[J]. Journal of Plant Physiology, 2005, 162(10): 1114-1122 BEERS R F,SIZER I W. A spectrophotometric method for measuring the breakdown of hydrogen peroxide by catalase[J]. Journal of Biological Chemistry, 1952, 195(1): 133-140 WILLEKENS H,CHAMNONGPOL S,DAVEY M,et al. Catalase is a sink for H2O2 and is indispensable for stress defence in C3 plants[J]. The EMBO Journal, 1997, 16(16): 4806-4816 LIU Y J,ZHAO Z G,SI J,et al. Brassinosteroids alleviate chilling-induced oxidative damage by enhancing antioxidant defense system in suspension cultured cells of Chorispora bungeana[J]. Plant Growth Regulation,2009, 59(3): 207-214 ELSTNER E F,HEUPEL A. Formation of hydrogen peroxide by isolated cell walls from horseradish (Armoracia lapathifolia Gilib.)[J]. Planta,1976, 130(2): 175-180 FITTER A H,STICKLAND T R. Architectural analysis of plant root systems 2. Influence of nutrient supply on architecture in contrasting plant species[J]. New Phytologist, 1991, 118(3): 383-389 SHAN L S,LI Y,REN W,et al. Root architecture of two desert plants in central Hexi Corridor of Northwest China[J]. Chinese Journal of Applied Ecology, 2013, 24(1): 25-31 单立山, 李毅, 任伟, 等. 河西走廊中部两种荒漠植物根系构型特征[J]. 应用生态学报, 2013, 24(1): 25-31 PADILLA F M,AARTS B H J,ROIJENDIJK Y O A,et al. Root plasticity maintains growth of temperate grassland species under pulsed water supply[J]. Plant and Soil, 2013, 369(1): 377-386 CHOAT B. Predicting thresholds of drought-induced mortality in woody plant species[J]. Tree Physiology, 2013, 33(7): 669-671 LI J X, ZHANG T C, REN X Y, et al. Responses of potato root architecture and physiological indexes to drought stress at different growth stages[J]. Acta Botanica Boreali-Occidentalia Sinica, 2024, 44(12): 1848-1855 李佳欣, 张天赐, 任晓月, 等. 不同生育期马铃薯根系构型及生理指标对干旱胁迫的响应[J]. 西北植物学报, 2024, 44(12): 1848-1855 AHANGER M A,SIDDIQUE K H M,AHMAD P. Understanding drought tolerance in plants[J]. Physiologia Plantarum, 2021, 172(2): 286-288 LIU F C, MA H L, LIU B H, et al. Effects of PGPR on the antioxidant system in the leaves of Juglans regia seedlings under continuous drought stress[J]. Journal of Northwest Forestry University, 2023, 38(5): 73-78 刘方春, 马海林, 刘丙花, 等. 持续干旱下接种PGPR对核桃苗抗氧化系统的影响[J]. 西北林学院学报, 2023, 38(5): 73-78 ZHANG X, ZHOU C Y, LI J K, et al. Advances in the study of structure and histochemical differentiation and physiological function of root cortex[J]. Jiangsu Agricultural Sciences, 2021, 49(14): 33-39 张霞, 周存宇, 李俊凯, 等. 根皮层结构和组织化学分化及生理功能研究进展[J]. 江苏农业科学, 2021, 49(14): 33-39 ZHANG J J, TIAN Q, GUO Y Y, et al. Physiological mechanism of root system response of Lycium ruthenicum to drought stress[J]. Journal of Gansu Agricultural University, 2023, 58(4): 183-191 张金菊, 田青, 郭有燕, 等. 黑果枸杞根系对干旱胁迫响应的生理机制[J]. 甘肃农业大学学报, 2023, 58(4): 183-191 DONG W K, ZHANG Y J, MA F Q, et al. Physiological characteristics of low temperature tolerance in Poa pratensis seedling stage[J]. Chinese Journal of Grassland, 2024, 46(5): 33-43 董文科, 张玉娟, 马福钦, 等. 草地早熟禾苗期耐低温的生理特性研究[J]. 中国草地学报, 2024, 46(5): 33-43 LI S. The study on root morphology architecture and physiological response of Alfalfa root under water deficit[D]. Beijing: Chinese Academy of Agricultural Sciences, 2021:75-100 李硕. 水分亏缺下紫花苜蓿根系形态构型及其生理响应研究[D]. 北京: 中国农业科学院, 2021:75-100 LI Y,WANG Q,LIU G Y,et al. 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1 College of Grassland Science, Xinjiang Agricultural University, Key Laboratory for Western Arid Region Grassland Resources and Ecology, Ministry of Education, Xinjiang Key Laboratory of Grassland Resources and Ecology, Urumqi, Xinjiang 830000, China
In this study, we used S. transiliense seedlings as a research object and conducted a pot experiment with continuous drought stress to systematically investigate the dynamic changes in root system morphology, physiological response and anatomical structure. The results showed that with the increass of drought stress intensity, root system morphology changed significantly, with a decrease in topological index and fractal dimension, and a shift in root branching patterns towards a more efficient “dendritic” structure. At the physiological level, there was a significant accumulation of reactive oxygen species (ROS), increase in membrane lipid peroxidation and enhanced ability to regulate osmosis. Antioxidant enzyme activity showed a trend of increasing first and then decreasing. The anatomical structure analysis revealed that the root tip epidermal and endodermal cells thickened to enhance water-holding capacity, while the cortical parenchyma, vascular system and root tip diameter all showed a decreasing trend to optimize water transport efficiency. This study revealed the adaptive strategy of S. transiliense by integrating root system configuration plasticity, physiological regulation, and anatomical structure optimization, providing a scientific basis for studying the drought resistance mechanisms of desert plants and also offering an important reference for ecological restoration and breeding in arid areas.
Key words
Seriphidium transiliense
/
Drought stress
/
Root system configuration
/
Physiological traits
/
Root tip anatomical structure
ZHANG Hao-hao, ZHANG Yong-qiang, JIANG Ang-chen, CHEN Ai-ping.
Research on the Response of Root System Configuration, Physiology and Anatomical Structure of Seriphidium transiliense Seedlings under Drought Stress[J].
Acta Agrestia Sinica,
2026
, 34
(4)
: 1288
-1301
.
DOI: 10.11733/j.issn.1007-0435.2026.04.014
基金
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伊犁绢蒿苗期干旱胁迫应答机制研究及抗旱基因的筛选与功能验证 (32160341)
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ZHANG Y Q, HAN Z, YU A P, et al. Effects of PEG simulated drought stress on root physiology of Seriphidium transiliense seedlings at different ages[J]. Pratacultural Science, 2025, 42(1): 129-139 张永强, 韩喆, 于爱萍, 等. PEG模拟干旱胁迫对不同苗龄伊犁绢蒿幼苗根系生理的影响[J]. 草业科学, 2025, 42(1): 129-139 WANG F L, CHAI C W, ZHAO P, et al. Photosynthetic and chlorophyll fluorescence responses of three desert species to drought stress and evaluation of drought resistance[J]. Acta Botanica Boreali-Occidentalia Sinica, 2021, 41(10): 1755-1765 王方琳, 柴成武, 赵鹏,等. 3种荒漠植物光合及叶绿素荧光对干旱胁迫的响应及抗旱性评价[J]. 西北植物学报, 2021, 41(10): 1755-1765 ZHOU G X,CHEN Y N,YAO J Q. Variations in precipitation and temperature in Xinjiang (Northwest China) and their connection to atmospheric circulation[J]. Frontiers in Environmental Science, 2023, 10: 1082713 CHEN X,LUO G P,XIA J,et al. Ecological response to the climate change on the northern slope of the Tianshan Mountains in Xinjiang[J]. Science in China Series D:Earth Sciences, 2005, 48(6): 765-777 SUN F,WANG Y,CHEN Y N,et al. Historic and simulated desert-oasis ecotone changes in the arid Tarim River Basin,China[J]. Remote Sensing, 2021, 13(4): 647 JIA R L,ZHAO Y,GAO Y H,et al. Antagonistic effects of drought and sand burial enable the survival of the biocrust moss Bryum argenteum in an arid sandy desert[J]. Biogeosciences, 2018, 15(4): 1161-1172 LATIFFEIKE N, HU J J, WANG H. Research progress on drought resistance of forage[J]. Journal of Grassland and Forage Science, 2021(5):1-10 努尤甫提·拉提非克, 胡金娇, 汪辉. 牧草抗旱性研究进展[J]. 草学, 2021(5): 1-10 GAO H J. Analysis of differentially expressed genes of Haloxylon ammodendron adapting tosimulated drought and functionalidentification of HaASR[D]. Lanzhou:Lanzhou University, 2019:1-2 高慧娟. 梭梭适应模拟干旱的差异表达基因分析及HaASR基因的功能鉴定[D]. 兰州: 兰州大学, 2019:1-2 AUGSTEIN F,CARLSBECKER A. Getting to the roots: a developmental genetic view of root anatomy and function from Arabidopsis to lycophytes[J]. Frontiers in Plant Science, 2018, 9: 1410 ZHANG X X,WHALLEY P A,ASHTON R W,et al. A comparison between water uptake and root length density in winter wheat: effects of root density and rhizosphere properties[J]. Plant and Soil, 2020, 451(1): 345-356 OROSA-PUENTE B, LEFTLEY N, WANGENHEIM V D, et al.Root branching toward water involves posttranslational modification of transcription factor ARF7[J]. Science, 362(6421) :1407-1410 GERMAN D A, CHEN W L, SMIRNOV S V, et al. Plant Genera and species new to China recently found in northwest Xinjiang[J]. Nordic Journal of Botany, 2012, 30(1): 61-69 HAN Z, ZHANG Y Q, ZHANG H H, et al. Effects of drought stress on growth and leaf anatomical structure of Seriphidium transiliense seedlings[J]. Acta Agrestia Sinica, 2024, 32(1): 105-112 韩喆, 张永强, 张浩浩, 等. 干旱胁迫对伊犁绢蒿幼苗生长及叶片解剖结构的影响[J]. 草地学报, 2024, 32(1): 105-112 BADEMUQIQIGE,SUN Z J,LI P Y,et al. The effect of harvest time on seed germination characteristics of Seriphidium transiliense in northern Xinjiang,China[J]. Seed Science and Technology, 2018, 46(1): 139-147 FENG Z P,KONG D L,KONG Y H,et al. Coordination of root growth with root morphology,physiology and defense functions in response to root pruning in Platycladus orientalis[J]. Journal of Advanced Research, 2022, 36: 187-199 LOU K E, QU W J, WANG L, et al. Root architecture characteristics of four dominant annual herbs in Tengger Desert, China[J]. Chinese Journal of Applied Ecology, 2024, 35(11): 3015-3022 楼科尔, 曲文杰, 王磊, 等. 腾格里沙漠地区4种优势一年生草本植物根构型特征[J]. 应用生态学报, 2024, 35(11): 3015-3022 LI H S. Plant physiologicalLI and biochemical experiment principle and technology[M]. Beijing: Higher Education Press, 2000:267-268 李合生. 植物生理生化实验原理和技术[M]. 北京:高等教育出版社,2000:267-268 ZHANG Z L. Plant physiology experiment instruction [M]. 2 Edition. Beijing: Higher Education Press, 1990:133-135 张志良. 植物生理学实验指导[M]. 第2版. 北京:高等教育出版社,1990:133-135 KONG X S, YI X F. Plant Physiology Experiment Technology[M].Beijing: China Agriculture Press, 2008:252-253 孔祥生, 易现峰. 植物生理学实验技术[M]. 北京:中国农业出版社,2008:252-253 ZOU Q. Plant Physiology Experiment Instruction[M]. Beijing: China Agriculture Press, 2000:252-253 邹琦. 植物生理学实验指导[M]. 北京:中国农业出版社,2000:252-253 GIANNOPOLITIS C N,RIES S K. Superoxide dismutases: I. occurrence in higher plants[J]. Plant Physiology, 1977, 59(2): 309-314 DE AZEVEDO NETO A D,PRISCO J T,ENÉAS-FILHO J,et al. Hydrogen peroxide pre-treatment induces salt-stress acclimation in maize plants[J]. Journal of Plant Physiology, 2005, 162(10): 1114-1122 BEERS R F,SIZER I W. A spectrophotometric method for measuring the breakdown of hydrogen peroxide by catalase[J]. Journal of Biological Chemistry, 1952, 195(1): 133-140 WILLEKENS H,CHAMNONGPOL S,DAVEY M,et al. Catalase is a sink for H2O2 and is indispensable for stress defence in C3 plants[J]. The EMBO Journal, 1997, 16(16): 4806-4816 LIU Y J,ZHAO Z G,SI J,et al. Brassinosteroids alleviate chilling-induced oxidative damage by enhancing antioxidant defense system in suspension cultured cells of Chorispora bungeana[J]. Plant Growth Regulation,2009, 59(3): 207-214 ELSTNER E F,HEUPEL A. Formation of hydrogen peroxide by isolated cell walls from horseradish (Armoracia lapathifolia Gilib.)[J]. Planta,1976, 130(2): 175-180 FITTER A H,STICKLAND T R. Architectural analysis of plant root systems 2. Influence of nutrient supply on architecture in contrasting plant species[J]. New Phytologist, 1991, 118(3): 383-389 SHAN L S,LI Y,REN W,et al. Root architecture of two desert plants in central Hexi Corridor of Northwest China[J]. Chinese Journal of Applied Ecology, 2013, 24(1): 25-31 单立山, 李毅, 任伟, 等. 河西走廊中部两种荒漠植物根系构型特征[J]. 应用生态学报, 2013, 24(1): 25-31 PADILLA F M,AARTS B H J,ROIJENDIJK Y O A,et al. Root plasticity maintains growth of temperate grassland species under pulsed water supply[J]. 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