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重金属Cr6+胁迫对茳芏生理生态特征的影响(PDF)

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2014年01期
页码:
89
栏目:
植物生理与分子生物学
出版日期:
2014-01-25

文章信息/Info

Title:
Physiological and ecological characteristics of Cyperus malaccensis to Cr6+ stress
作者:
韦江玲 潘良浩 陈元松 范航清
1. 广西红树林保护与利用重点实验室, 北海 536000; 2. 广西红树林研究中心, 北海 536000; 3. 广西山口红树林生态自然保护区管理处, 北海 536000
Author(s):
WEI Jiang-Ling123 PAN Liang-Hao12 CHEN Yuan-Song1 FAN Hang-Qing12*
1. Guangxi Key Lab of Mangrove Conservation and Utilization, Beihai 536000, China; 2. Guangxi Mangrove Research Center, Beihai 536000, China; 3. Shankou Mangrove Ecosystem Nature Reserve Administration, Beihai 536000, China
关键词:
Cr6+ 茳芏 胁迫 生理生态特征
Keywords:
Cr6+ Cyperus malaccensis stress physiological and biochemical characteristics
分类号:
Q945.78
DOI:
10.3969/j.issn.1000-3142.2014.01.017
文献标识码:
-
摘要:
采用盆栽模拟试验,研究了不同水平重金属Cr6+对茳芏生理生态的影响,探索了茳芏对重金属的抗性机理,充实有关盐沼植物的污染生态学研究。结果表明:(1)Cr6+胁迫对茳芏生物量具抑制作用;(2)叶绿素含量及叶绿素a/b比值显著降低,并对净光合速率(Pn)、胞间 CO2浓度(Ci)、蒸腾速率(Tr)及气孔导度(Gs)产生显著负面影响;(3)各浓度Cr6+胁迫对茳芏根系活力表现为抑制效应;(4)在Cr6+胁迫下,茳芏过氧化氢酶(CAT)活性均比对照低(除50mg/L外),超氧化歧化酶(SOD)活性随 Cr6+浓度增加呈降低趋势,而过氧化物酶(POD)活性则持续上升。丙二醛(MDA)、细胞膜透性和脯氨酸(Pro)随Cr6+浓度增加显著增加,表明Cr6+胁迫对茳芏细胞质膜系统及主要细胞器的结构与功能都具有较强的破坏作用。
Abstract:
This study adopted a simulated experiment method by the means of planting Cyperus malaccensis in pots in order to study the different concentrations of Cr6+ stress effects on the plant eco-physiological characteristics and its resistance to the stress,aiming to obtain the species’s toxicity mechanisms as well as its resistance to the metal,so as to provide reference to the pollution ecology of salt marsh plants. The results were as follows:(1)The biomass was inhibited drastically as the stress increased;(2)The contents of chlorophyll and the ratio of chlorophyll a and chlorophyll b reduced obviously,and there were obviously negative effects to net photosynthesis rate(Pn), intercellular CO2 concentration(Ci), transpiration rate(Tr)and stoma conductivity(Gs);(3)The root vigor was inhibited significantly under Cr6+ stress;(4)The activity of CAT under Cr6+ stress were lower than the control group(except the concentrations of 50 mg·L-1), the activity of SOD decreased, but the activity of POD increased all the time. The contents of MDA,proline and cytomembrane permeability increased obviously with the increasing of Cr6+concentrations. Therefore, it highlighted that the Cr6+stresses could mangle the cytomembrane system,the structures and functions of the major organelles of tea plant.

参考文献/References

王晶英. 2003. 植物生理生化实验技术与原理[M]. 哈尔滨:东北林业大学出版社:82-83
张治安,张美善,蔚荣海. 2004. 植物生理学实验指导[M]. 北京:中国农业科学技术出版社:65-67
林来官. 1994. 福建植物志(第六卷)[M]. 福建:科学技术出版社:316
侯福林. 2010. 植物生理学实验教程[M]. 北京:科学出版社,2:49-51
高俊凤. 2006. 植物生理学实验指导[M]. 北京:高等教育出版社
鲁如坤. 2000. 土壤农业化学分析方法[M]. 北京:中国农业科技出版社
熊庆娥. 2003. 植物生理学实验教程[M]. 成都:四川科学技术出版社
Biehler K,Migge A,Fock HP. 1996. The role of malate dehidrogenase in dissipating excess energy under water stress in two wheat species[J]. Photosynthetica,32(3):431-438
Bernal MP,McGrath SP. 1994. Effects of pH and heavy metal concentrations in solution culture on the proton release,growth and elemental composition of Alyssum murale and Raphanus sativus L[J]. Plant & Soil,116(1):83-92
Cai HX(蔡海霞),Wu FZ(吴福忠),Yang WQ(杨万勤). 2011. Effects of drought stress on the photosynthesis of Salix paraqplesia and Hippophae rhamnoides seedlings(干旱胁迫对高山柳和沙棘幼苗光合生理特征的影响)[J]. Acta Ecol Sin(生态学报),31(9):2 430-2 436
Chatterjee J,Chatterjee C. 2000. Phytotoxieity of cobalt chromium and copper in cauliflower[J]. Environ Poll,109:64-74
Dong ZC(董志成),Pao ZY(鲍征宇),Xie SY(谢淑云),et al. 2007. Resistance and toxic heavy metal uptake and accumulation by Phragmites australisin a wetland(湿地芦苇对有毒重金属元素的抗性及吸收和累积)[J]. Geol Sci Technol Inf(地质科技情报),39(2):279-285
He J(何洁),Gao YT(高钰婷),He X(贺鑫),et al. 2013. The effect of Zn and Cd on growth and antioxidant enzymes activity of Suaeda heteroptera Kitagawa(重金属 Zn和Cd 对翅碱蓬生长及抗氧化酶系统的影响)[J]. Acta Sci Circumst(环境科学学报),33(1):312-320
Hu GR(胡恭任),Yu RL(于瑞莲). 2008. The study on heavy metal contents and enrichment in Spartina anglicain Quanzhou bay(泉州湾互花米草中重金属富集程度分析)[J]. J Huaqiao Univ:Nat Sci Ed(华侨大学学报·自然科学版),9(2):250-255
Huff A. 1982. Peroxidase-catalysed oxidation of chlorophyll by hydrogen peroxide [J]. Phytoch-Emisty,21(2):261-265
Liu L(柳玲),Lü JY(吕金印),Zhang W(张微). 2010. Effects of cr6 +treatment on Cr accumulation and physiologyical characteristics of celery(Apium Graveolens)(不同浓度 Cr6 +处理下芹菜的铬累积量及生理特性)[J]. J Nucl Agric Sci(核农学报),24(3):639-644
Pan LH(潘良浩),Wei JL(韦江玲),Chen YS(陈元松),et al. 2012. Distribution characteristics and seasonal dynamics of organiccarbon,total nitrogen,total phosphorus of Cyperus malaccensis and sediments in Maoweihai bay(茅尾海茳芏及沉积物有机碳、全氮、全磷分布特征与季节动态)[J]. Weiland Sci(湿地科学),10(4):467-473
Pankovi CD,Plesnicar IM,Petrovic AM,et al. 2000. Effects of nitrogen nutrition on photosynthe-sis in Cd treated sunflowerplants[J]. Ann Bot,86:841-847
Shi GY(石贵玉),Chen MM(陈明媚),2005. Effects of Cr6+and Se on the growth and physiology of rice seedling(铬、硒对水稻幼苗生长和生理的影响)[J]. Guihaia(广西植物),25(3):281-284
Tan WN(谭万能),Li ZA(李志安),Zou B(邹碧). 2006. Molecular mechanisms of plant tolerance to heavy metals(植物对重金属耐性的分子生态机理)[J]. J Plant Ecol(植物生态学报),30(4):703-712
Wang XS,Qin Y. 2006. Removal of Ni(II),Zn(II)and Cr(VI)from aqueous solution by Alternan-thera philoxeroides biomass[J]. J Hazard Mat,138:582-588
Xie XY(谢翔宇),Weng BS(翁铂森),Zhao SZ(赵素贞). 2013. Effects of arbuscular mycorrhizal inoculation and Cd stress on the growth andantioxidant enayme system of Kandelia obovata(Cd胁迫下接种丛枝菌根真菌对秋茄幼苗生长与抗氧化酶系统的影响)[J]. J Xiamen Univ:Nat Sci Edi(厦门大学学报·自然科学版),52(2):244-252
Zhang LL(张乐乐),Shi GX(施国新),Wang J(王娟),et al. 2011. Toxic of chromium(Cr6+)on the callus of Alternanthera philoxeroides(铬对水花生愈伤组织的毒害效应)[J]. Guihaia(广西植物),31(3):377-382
Zhu MH(朱鸣鹤),Ding YS(丁永生),Ding DW(丁德文). 2006. Seasonal variation about accumulation distribution and transference of heavy metals in Suaeda heteroptera(翅碱蓬体内重金属在不同生长期的分布与迁移)[J]. Chin Environ Sci,(中国环境学),26(Suppl):110-113
Zhao SJ(赵世杰),Xu CC(许长成),Zou Q(邹琦),et al. 1994. Improvements of method for measu-rement of malondialdehvde in plant tissues(植物组织中丙二醛测定方法的改进)[J]. Plant Physiol Comm(植物生理学通讯),26(4):62-65
Zhou HW(周红卫),Shi GX(施国新),Xu QS(徐勤松),et al. 2002. Effects of Cr6+and Cr3+on biochemical and physiological characters of A. philoxeroides(Cr6+和 Cr3+对水花生几种生理生化指标的影响比较[J]. Rural Eco-Environ(农村生态环境),18(4):35-40
Zheng AZ(郑爱珍). 2007. Effects of heavy metal cr6+pollution on physiological and biochemical characteristics of pepper(Capsicum annuum)seedlings(重金属 Cr6+污染对辣椒幼苗生理生化特性的影响)[J]. J Agro-Environ Sci(农业环境科学学报),26(4):1 343-1 346
Zhang XX(张呈祥),Chen WF(陈为峰). 2013. Physiological-ecological responses of Iris germanica to Cd stress and its accumulation of Cd(德国鸢尾对Cd 胁迫的生理生态响应及积累特性)[J]. Acta Ecol Sin(生态学报),33(7):2 165-2 172
Zhang JB(张金彪),Huang WN(黄维南). 2007. Effects of cadmium stress on photosynthetic functiongs of strawberry(镉胁迫对草莓光合的影响)[J]. Chin J Appl Ecol(应用生态学报),18(7):1 673-1 676
Zhao FG(赵福庚),Liu YL(刘友良),Zhang WH(章文华). 2002. Proline metabolism in the leaves of barley seedlings andits relation to salt tolerance(大麦幼苗叶片脯氨酸代谢及其与耐盐性的关系)[J]. J Nanjing Agric Univ(南京农业大学学报),25(2):7-10

备注/Memo

备注/Memo:
收稿日期: 2013-07-14 修回日期: 2013-11-12
基金项目: 广西红树林保护与利用重点实验室基金(GKLMC-201207); 广西科学院基本业务费(12YJ25HS15,13YJ22HS10)。
作者简介: 韦江玲(1983-),女,壮族,广西柳州人,硕士研究生,主要从事滨海湿地保护与研究,(E-mail)ppweijl@163.cn。
*通讯作者: 范航清,研究员,首席科学家,从事滨海湿地生态学研究,(E-mail)fanhq666@126.com。
更新日期/Last Update: 2014-03-10