Cu胁迫对小白菜保护酶系统及其他相关抗性指标的影响
y j vÐÐ1 SÐñ»36 »4 ùJournalofFujianAgricultureandForestryUniversityNaturalScienceEdition 2007 M7là ° ù2006-06-16 ©í ° ù2007-03-12Á[ “福建省科技厅资助项目2005NA04.Teº林义章1956-,男,副教授.研究方向蔬菜栽培生理与育种.Cu胁迫对小白菜保护酶系统及其他相关抗性指标的影响lc1,· Å2, 511.福建农林大学园艺学院,福建福州 350002;2.福建省农业厅种植业技术推广总站,福建福州 350003K1 £ ¡AÏFCuSO4,[ Z ]ô ¤2ñÈlâ ÖÕ¹ k,ùî Cu} çlâ ¹ ½“d ðM1 F·S¥Y.²TV üCu} çö åÊ ¹ ½“d,ÑÄþ Ä ½SOD、VÄ _ ½CAT/,VÄþ ½POD üA 6,] HÁ 3÷¥ «VÄÁþd MDA, Mi9F, ¥ åÊ,7SOD/MDAc ¥® ª ü ±é¸} ç1áØ« ï¥/;T¹ 1iØ«þÉ, ˳ Ö§¼ Öc Û¸Cu2c ¥ 6ÚA÷9F.1oMlâ;Cu} ç; ½“dÏms Ë|S634.3ÓDS M AÓcI|1671-5470200704-0369-04EffectsofcopperstressonBrassicachinensisL.resistantenzymesystemandotherresistantindsLINYi-zhang1, XULei2, LINBi-ying11.ColegeofHorticulture, FujianAgricultureandForestryUniversity, Fuzhou, Fujian350002, China;2.PlantingTechnologyExtensionStation, DepartmentofAgricultureofFujianProvince, Fuzhou, Fujian350003, ChinaAbstractThevarietiesShanghaiqingandWuyuemanwereplantedinhydroponicsolutionwithdiferentcontentsofcopper.There-sultsshowedthattheactivitiesofsuperoxidedismutaseSODandcatalaseCATwereinhibitedundercopperstress, onthecon-trarytheactivityofperoxidasePODandthecontentofmalondialdehydeMDAincreased.Celmembraneintegritywasspoiledandcelmembraneleakagewasenhanced.ThedeclineofthueofSODactivity/MDAcontentvalueaccountedforthedeclineofself-adjustmentoftheplantundercopperstress.Asanimportantosmoregulationmaterial, freeprolineinleavessignificantlyin-creasedwithcopperconcentrationofthesolution.KeywordsBrassicachinensisL.;copperstress;enzymesystemCu Ú©±þ 3ÉâVñÏA³¥BÕ1¥± í Í,и ½£ ½¥Fî;]H,CuT¹µr¥È08Ð s8,Ñ1®¥ b“« ;T¨¥È0.¾QÏ “1¥T¨[ 1-2] .V ¥CuöÁ±þ8¥Cuý],E¸±þ¥ 3É、®Á Ö¥É . “ -áSCu±þý] Ø¥ùî ¯¿¨ ,ö1[ JTþ¹ùî, vTþ¥ùî [ 3-4]. kÊ | ¡ ë v、Cuý] ¹ ùË¥lâT¹ k ,ùîCu} çlâ ¹ ½“d ð Fy0¥Y, kmXµùî¥ lâCuý]ÉÉB¥sùî,÷z¹£ UCuý]¥ Ø,¹áS s ä v 3Á、Cuê ¥Í Ø4 I.1 ÐZE1.1 k klâBrasicachinensisL. ÖÕ¹ Z ] ÊvÕ0µK ³ô ¤sÜ g ÕµK ³.1.2 ¡ZElâÕ0Ühý、 ªl¿ µ Cr FÉ¥â ì ,É4-5 Ë H,MDOI 10.13323/ki.j.fafunat.sci..2007.04.01550 cm100 cm¥ Ï, ı3é5é,ÉSA £ ¡[ 5].¨l b â ê8 ,Ä8 2Q.1.3 k Ø£ ¡ Ø7dª÷Ð ¡A, ¡ÏAFCuSO4 ·A.5ñ ØACu2¥É i¹0、1、5、10、15 mg·L-1, 0mg·L-1¹v,É i0ô 5 ùCu2c © kªÊç. k 3ñ¯, 7-20d©çò[·S.1.4 ©çZEÑÄþ Ä ½superoxidedismutase, SOD©ç¨ ¡ ¹NBT;ÄÎðE[ 6] ;VÄþ½peroxidase, POD©ç¨ß7 pÄE[ 7] ;VÄ _ ½catalase, CAT©ç¨Ã E[ 8] ;d malondiadehyde, MDAc ©ç¨ ;}Ø1 ÖTABE[ 9];³ Ö§¼ Öc ©ç¨Ü £ ÖE[ 10];M i¨,s;;E©ç.2 ²TÐs2.1 Cu} çlâSOD¥YV1A U Cu} çlâSOD¥Y.1 mg·L-1 Cu2 Ø¥ô ¤,SODA÷ 6Ú,ö1¿Ú©±þ8 SOD¥3Õ ËÏ,Cu·Zn-SOD] Kv¥1,¸Cu¥O/,Cu·Zn-SODî9 Ód©[11] ª¹,Cu} ç/,POD 9 ¼,Û,Zò .Ü g ur ö1Á í Í¥ê ßN[J].y j vÐÐ1 SÐñ, 2005, 343376-378.[ 5] õxâ.ír ¡ð ØÐ/ [M].ØÏS jC,f Fô.±þ F 3þÐ[M].ØÏS jÓd, äÅ §.CuÛ¼ ì 3ÉVÄ _ ½ Y ÖÄ ½¥Y[J].±þ 3 ØÐYß, 1985322-24.[ 12] lc, B, ê ü. £s} ç ÏÄí ù v t 3 Ø 3Ä·S¥Y[J].y jvÐÐ, 1996, 254438-441.[ 13] dë ¼, Z C,-ü. ¥¨í ÍÐpÄ ½、ÑÄþ Ä ½¥1“[J].ê vÐÐ, 2004,32672-73.[ 14]f 7 ü,Û Ê ,ðZ ,©.Cuê ¥±þý]、 F Ø ±þ©¯[J]. ÊÌâ S/, 2005, 1814-6.责任编辑施晓棠 372y j vÐÐ1 SÐñ»36