外源ABA及NaN_3对美洲商陆(Phygolacca americana)吸收镉的影响
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摘要
采用水培法,比较了分布在污染区(吉首大田湾)和非污染区(怀化黄家山)两个美洲商陆种群对镉胁迫的响应,探讨了外源ABA和代谢抑制剂NaN3对美洲商陆(Phytolacca americana)吸收和积累镉。结果表明,镉处理显著抑制吉首和怀化两种群的生长,并且相同浓度镉处理下,两种群根、叶的干重没有显著差异。但吉首种群根的镉含量略低于怀化种群,而叶的镉含量稍微高于怀化种群。外源ABA和NaN3的加入,显著抑制了美洲商陆对镉的吸收。
引文
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[2]BROOKS R.R.Plants that hyperaccumulate trace metals.CAB International,Wallingford,1998,pp.380.
[3]KUPPER H,LOMBI E,ZHAO F J,etal.Celluar compartmentation of cadmium and zinc in relation to other elements in the hyperaccumulator Arabidopsis halleri[J].Planta,2000,212:75-84.
[4]BERT V,BONNIN I,SAUMITOU-LAPRADE P,etal.Do Arabidopsis halleri from nonmetallicolous populations accumulate zinc and cadmium more effectively than those from metallicolous populations?[J].New phytologist,2002,155:47-57.
[5]夏妍.海州香薷耐铜性和金属硫蛋白基因克隆及功能分析[D].南京:南京农业大学.2007:8-15
[6]HALL J L,WILLIAM A L E.Transition metal transporters in plants[J].Journal of experimental botany,2003,54:2601-2613.
[7]VAN DER VLIET L,PETERSON C,HALE B.Cd accumulation in roots and shoots of durum wheat:the roles of transpiration rate and apoplastic bypass[J].Journal of experimental botany,2007,58;2939-2947.
[8]GUERINOT M L The ZIP family of metal transporters[J].Biochemical and biophysical research communications Acta.,2000,1465:190-198.
[9]MASER P,THOMINE S,SCHROEDER J I.Phylogenetic relationships within cation transporter families of Arabidopsis[J].Plant physiology,2001,126:1646-1667.
[10]BOVERT L,EGGMANN T,MEYLAN-BETTEX,etaL Transcript levels of AtMRPS after Cadmium treatment;induction of AtMRP3[J].Plant cell and environment,2003,26;371-381.
[11]HIRSCHI K D,ZHEND R G,CUNNINGHAM K W.CAX1,an H+/Ca2+antiporter from Arabidopsis.Proceedings of the National Academy of Sciences,USA[J],19%,93:8782-8786.
[12]MILLS R F,KRUGER G C,BACCARINI P J.Functional expression of AtHMA4,a PI B-type ATPase in the Zn/Co/Cd/Pb subclass[J].The Plant Journal.2003,35:164-175.
[13]石苏利.超级累植物商陆响应重金属胁迫的比较蛋白质组学初探[M].郑州:河南农业大学.2013.8-13.
[14]高璐.美洲商陆(Phytolacca americana)对镉、锰积累和耐性生理机制的研究[D].南京:南京农业大学,2011,9-13.
[15]WHITE P J,WHITING S N,BAKER A J M.Does zinc move apoplastically to the xylem in roots of Thlaspi caerulescens?New phytologist,2002,153;199-211.
[16]SALT D E,PRINCE R C,PICKERING I J,etaL Mechanisms of cadmium mobility and accumulation in Indian Mustard[j].Plant physiology,1995,109:1427-1433.
[17]GAO L,PENG K.J,CHEN Y.H,WANG G.P,SHEN Z.G.Roles of apoplastic peroxidases laccases and lignification in the manganese tolerance of hyperaccumulator Phytolacca americana[J].Acta Physiologiae Plantarum.2012,34(1):151-159.
[18]SALAH,S.A.,BARRINGTON,S.F.Effect of soil fertility and transpiration rate on young wheat plants(Triticum aestivum)Cd/Zn uptake and yield[J].Agricultural water management,2006,82:177-192.
[19]VAN DER VLIET,L,PETERSON,C.,HALE,B.Cd accumulation in roots and shoots of durum wheat;the roles of transpiration rate and apoplastic bypass[J].Journal of experimental botany,2007,58;2939-2947.
[20]RANATHUNGE K,STEUDLE E,LAFITTE R.A new precipitation technique provides evidence for the permeability of Casparian bands to ions in young roots of corn(Zea mays L)and rice(Oryza sativa L)[J].Plant cell and environment,2005,28;1450-1462.
[21]铁柏清,袁敏,唐美珍.美洲商陆(PhytolaccaAmericanaL)——一种新的Mn积累植物[J].农业环境科学学报.2005,24(2):340-343.
[22]PENG K J,LUO C L,YOU W X,etal.Manganese uptake and interactions with cadmium in the hyperaccumulat or-Phytolacca americanaL[J].Journal of hazardous materials,2008,154;674-681.
[23]LIU X.Q,PENG K J,WANG A.G,etal.Cadmium accumulation and distribution in populations of Phytolacca americana L and the role of transpiration[J].Chemosphere,2010,78(2010)1136-1141.