|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
不同干旱胁迫强度下白刺花幼苗叶片的生理生化反应
DOI: 10.3724/SP.J.1145.2008.00757, PP. 757-762
Keywords: 白刺花,干旱胁迫,抗氧化酶,生化伤害,田间持水量,fc
Abstract:
植物代谢产物和抗氧化酶活性与干旱胁迫强度的定量关系是评估植物适应干旱能力的重要科学问题.本文采用盆栽试验设计，设置土壤田间持水量(fc)80%、60%、40%、20%4个干旱胁迫处理，研究了不同强度的干旱胁迫梯度上2a生白刺花(sophoradavidii)幼苗叶片内丙二醛(mda)、脯氨酸(pro)、可溶性蛋白质、光合色素含量、超氧化物歧化酶(sod)、抗坏血酸过氧化物酶(apx)、过氧化氢酶(cat)和过氧化物酶(pod)活性的变化特点.发现：(1)mda与pro含量随着干旱胁迫强度的增加呈线性增加趋势.(2)蛋白质和光合色素含量在干旱胁迫梯度上呈“钟型”抛物线变化趋势，在60%~40%fc下含量最高.(3)4种抗氧化酶活性的变化趋势不尽相同.其中sod与apx的活性在干旱胁迫梯度上的反应均表现为多项式变化规律，即在中度干旱下的活性显著升高，而重度胁迫下降低；cat活性变化规律与sod和apx活性的变化正好相反；pod活性则表现为倒钟型趋势，60%fc下活性最低.综合分析表明，可溶性蛋白质和光合色素的含量、sod、apx、cat以及pod不仅能够较好地指示干旱胁迫对幼苗叶片的生理生化伤害程度，并且可反应叶片开始受胁迫伤害的土壤干旱水平，但是mda和pro含量则无法指示；60%fc左右的土壤含水量是白刺花2a生幼苗叶片生理生化代谢受到伤害的干旱强度的阈值.图3参26
| [1] | 6mittlerr.oxidativestress,antioxidantsandstresstolerance.trendsplantsci,2002,7(9):405~410
|
| [2] | 7yangss(杨淑慎),gaojf(高俊凤).influenceofactiveoxygenandfreeradicalsonplantsenescence.actabotbor-occidsin(西北植物学报),2001,21(2):215~220
|
| [3] | 8elsteref.oxygenactivationandoxygentoxicity．annurevplantphysiol,1992,43:73~96
|
| [4] | 9smirnoffn.theroleofactiveoxygenintheresponseofplantstowaterdeficitanddesiccation.newphytol,1993,125:27~58
|
| [5] | 10seloteds,khannacr.droughtacclimationconfersoxidativestresstolerancebyinducingcoordinatedantioxidantdefenseatcellularandsubcellularlevelinleavesofwheatseedlings.physiolplantarum,2006,127:494~506
|
| [6] | 11fazelif,ghorbanlim,niknamv.effectofdroughtonbiomass,proteincontent,lipidperoxidationandantioxidantenzymesintwosesamecultivars.biolplantarum,2007,51(1):98~103
|
| [7] | 13sunwh(孙卫红),wangwq(王伟青),mengqw(孟庆伟).functionalmechanismandenzymaticandmolecularcharacteristicofascorbateperoxidaseinplants.plantphysiolcommun(植物生理学通讯),2005,41(2):143~147
|
| [8] | 14chenjh(陈吉虎),yuxx(余新晓),sunmg(孙明高),youxl(有祥亮),zhangcd(张长达),xieg(谢港).relationbetweenactivityofantioxidantenzymesanddroughtresistanceofdifferenttreespeciesinnorthchina.agricresaridareas(干旱地区农业研究),2006,24(5):120~125
|
| [9] | 23asadak.assayofascorbate-specificperoxidase.methodsenzymol,1984,105:427~429
|
| [10] | 24yingcy(应朝阳),lülx(吕亮雪),liugd(刘国道),wengbq(翁伯琦),huangyb(黄毅斌).effectofsoildroughtstressonthegrowthandactiveoxygenmetabolismofarachisduranensis.chinjtropcrops(热带作物学报),2006,27(1):17~21
|
| [11] | 25ruancj(阮成江),xieql(谢庆良).effectofsoilmoistureonsurvivalrateofhippophaerhamnoidesl.anditsstress-resistancephysiologicalcharacteristics.chinjapplenvironbiol(应用与环境生物学报),2002,8(4):341~345
|
| [12] | 26zhaoj(赵瑾),baij(白金),panqh(潘青华),jinh(金洪).studyonchangesregularityofchlorophyllcontentsindifferentsabinachinensis(l.)varieties(lines)duringdroughtstress.chinagricsciencebull(中国农学通报),2007,23(3):236~239
|
| [13] | 1yujh(于景华),wanglj(王丽娟),tangzh(唐中华),zhangxj(张信娟),zuyg(祖元刚).physiologicalandmolecularresponseofplanttodroughtstress.modernagric(现代化农业),2006,12:1~4
|
| [14] | 2yangf(杨帆),miaolf(苗灵凤),xux(胥晓),licy(李春阳).progressinresearchofplantresponsestodroughtstress.chinjapplenvironbiol(应用与环境生物学报),2007,13(4):586~59
|
| [15] | 3lup(鲁萍),sangwg(桑卫国),makp(马克平).activityofantioxidantenzymesintheinvasiveplanteupatoriumodoratumundervariousenvironmentalstresses.actaecolsin(生态学报),2006,26(11):3578~3585
|
| [16] | 4lifl(李芳兰).responseandacclimationofthreeleguminousshrubspeciestodroughtstress:[doctor’sdegreethesis].beijing(北京):graduateuniversityofchineseacadmyofsciences(中国科学院研究生院),2007
|
| [17] | 5zhaoly(赵丽英),dengxp(邓西平),shanl(山仑).theresponsemechanismofactiveoxygenspeciesremovingsystemtodroughtstress.actabotbor-occidsin(西北植物学报),2005,25(2):413~418
|
| [18] | 12maxj(马旭俊),zhudh(朱大海).functionalrolesoftheplantsuperoxidedismutase.hereditas(遗传),2003,25(2):225~231
|
| [19] | 15lifl(李芳兰),baowk(包维楷),liujh(刘俊华),wun(吴宁).eco-anatomicalcharacteristicsofsophoradavidiileavesalonganelevationgradientinupperminjiangriverdryvalley.chinjapplecol(应用生态学报),2006,17(1):5~10
|
| [20] | 16chenq(陈强),wangdm(王达明),lipr(李品荣),changef(常恩福),huangcl(黄春良),liaowh(廖文辉).seedlingraisingtechniquesandafforestationmethodsanddevelopmentforsophoradavidii.chinwildplantresour(中国野生植物资源),2002,21(6):20~21
|
| [21] | 17wanghz(王海珍),liangzs(梁宗锁),haowf(郝文芳),hanl(韩路).physiologicalmechanismofsophoraviciifoliatoadapttosoildrought.agricresaridareas(干旱地区农业研究),2005,23(1):106~110
|
| [22] | 18mohsenzadehs,malboobima,razavik,farrahi-aschtianiets.physiologicalandmolecularresponsesofaeluropuslagopoides(poaceae)towaterdeficit.environ&experbot,2006,56:314~322
|
| [23] | 19adrianos,bartolomeod,cristosx,andream.effectsofdifferentirradiancelevelsonsomeantioxidantenzymesandonmalondialdehydecontentduringrewateringinolivetree.plantsci,2004,166:293~302
|
| [24] | 20李合生.植物生理生化实验原理和技术.北京:高等教育出版社,2000
|
| [25] | 21amalok,chengx,asadek.separateassaysspecificforascorbateperoxidaseandguaiacalperoxidaseandforthechloroplasticandcytosolicisozymesofascorbateperoxidaseimplants.plantcellphysiol,1994,35:497~504
|
| [26] | 22aebih.catalaseinvitro.methodenzymol,1984,105:121~126
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
