低温锻炼对冷胁迫下甜瓜幼苗抗氧化酶活性与质膜透性的影响.pdf

j,V7 P% =v 1,F A q9v6 。Vm1 VA,2 /, ) C( M q ( HW9F7 6,  T1T2)  CKM1 ,V =? 7 S,   ? A /M q 6, O2 3? =,T1T2) (CKAs(P <0.01),4?=CKAs(P <0.05)。V /,  C( M q 6 t ,  CKM1 ,   ?4C( s  HW2 ? 。 = s s7 。m1 VA,CKM1 ,   ? PC( = s c A。 ) , ) C( = s c ( 7/ t ,  ) ,C( = s c / y,V 4= s Z ,   ?4 C( /= s s,Q7F s t 。m1   /C( M q= s c YFig.1 Effect of cold-hardeningon electricalconductivityand the chlorophyll contentsof muskmelon seedlingunder low temperaturestress1691        y :   /C( F iYm2   /C( SODPODYFig.2 Effect of cold-hardeningonSOD and POD contentsof muskmelonseedlingunder low temperature stress2.2   /C( SODPODYSOD、POD V 8 。m2 V,CKM1 ,  V,C( (A9 <(P <0.01)。 2 /,  T1 、T2) v/ t ,SOD 、PODA  CK(P <0.01)。V C( V10 d   ?P8 = V1T,9 < a ? 。Vm V A,T2)  rTT1) 。m3   /C( d= c YFig.3 Effect of cold-hardening on MDA content ofmuskmelon seedlingunder lowtemperaturestress2.3   /C( MDAc YMDA VTK, “d s1S9 。m3 V A,CKM1 ,10 d   ? PC( = MDAc A 6(P <0.01), 2 Hq/,  C( = MDAc B 6 t ,A  CK(P <0.01)。V 10 d   C( = B V, ?9 < a ? 。3 结论与讨论V s V A,  C( = s T,Q7F s,P 2 /c A。 “ HW,C( SOD、PODc (/ t ,MDAc M q5 6t 。  CKM1 ,   ?A /C( s#MDAM q 6。= s s 3? v Y, ; ? /B。7 sMDAM q 65B h C( T。% i= s c 3 1 3 S,B% i,= s c5 3 <。V , I% i= s c ( 3?Z_?Z 6,7 。' 10 d   ?AC( % i 9v,  = s B T,yNV= s c Z ,  C( Y。   ?A4C( SOD、POD,C( = 170  j <                  16 MDA 3M q 6。7SOD、POD / FeT1,2,6 10 ,MDA V1, cM qQ“ 11 。yN,VtSM f A,   ?C( , P Fe4。 6,VPODM A,  C( Fe ?4,#7  FB。 ID:1   ,1,  ,. ; C(Q1 tc Y J . j<v(1 S),2005,36(1):67 69.2  ,  . C(Q F I 3 S J .Z,2006,(1):23 24.3  e 7, Si, ,. aR  4 I N F # 3 $ J .T, 2005,31(08):971 976.4   3. 3 3 L / M .:,2000.164 165,167 169,260 261,261 263. 5   m,R),Z ,. = s c ZE J .S jY,2005, (6):153 155. 6  , =,. R F 3 3Ss J . j< S,2006, (2):211 213. 7   ,S, . ; ;/ i( 0S J . j<, 2005, (S2):73 75. 8  , j. / V % M J ., 2005, 32(05):911 913.9  ?,fS, ,. ; F iY J .,2005, 25(12):2478 2483. 10   ;,:,R .,. (Q 1 Y J . j<v(1 S),2002,33(3):302 304. 11  Larc D A, Tottempudi K P, Cecil R S .Changes in isczyme profiles of catalase, peroxidase, and glutathione re-ductase during acclimation to chilling in mesocotylsof maizeseedling J .Plant Physiol, 1995, 109 :1247 1257.(上接第99页) ID:1  I L, ,.SPhC#_fyp J ._f,1996,10(1):233 236.2   2. $ oh # J .S_,1996,(2):31 34.3  ,u *, .BRT-PCT_ 2=hZEy J ._f, 2003,17(6):330 332. 4  Wetzel T, Wegener U, et al .Complete nucleotide sequenceof the RNA1 of a grapecine isolate of Arabis mosaic virus J .Arch Virol, 2004,149:989 995. 5  Wetzel T, Meunier L, Jaeger U, et al .Complete nucleotidesequence of the RNAS2 of German isolates of Grapevinefanleaf and Arabis mosaic nepovirues J .Virus Research ,2001,75:139 145.1711        y :   /C( F iY