夜间低温胁迫下钙对番茄幼苗根系活力及活性氧代谢的调控作用
j4EGTA 0Y]4LaCl3I N ““ 、 V c 、 VROS} eT。TV,W} ,V7Y 3[17-18] 。“ sCa2 e,FB iCa2 VA4} /“ [ 5] 。 kTV ,W} 25 ℃/6 ℃,//I N “ A/, EGTALaCl3F“ Y;7Ca2A4“ ,V7 。 Ca2 h“],V7VC “ 。 3 Hq/, 3 b“ , ,7 I} ,V7 3V1, P 3 s ][19-20] 。V , MDA Vs1B, c s ]M1[21] 。 k,W I N “MDA 、H2O2c A 6, O2 - 3 q9Av, N H8 3b““dW , X s], 3 。 7Ca29I N “MDA 、H2O2c Am2、m3, O2- 3 q9 sA]m4。V ]} /I N “ V, ,V7 8 }。V s0hM , 3 T,V7 P s0 , i[22-23] , 。W} /I N“ V c A,Ca29A4} /I N “ V c 。 Ca2T } | 3 Q P, V[B 9 . 3 L/ [ M] . a S/ ,2001.[13] u W, ,B. 3 L[ M] .S j S/ ,2002.[ 14] ;, .| 01ZE[ J] . 2,2005,272211-216[ 15] y B,{o,u .T v 3 3 L[ M] .S ,2007.[16] 3. 3 3 L / [ M] .,1999.[ 17] ]Z, , ,. N0Q “} Y[ J] . 3 ,2006,173390-394.[ 18] X, . “ 3 Y[ J] . j S,2000417-19.[19] ,, 9,.Ca2V Fe2} / VY[ J] .T,2003, 293447-451.[ 20] 3.} /}Y[ D] . 2 2 jv,2007.[ 21] Roxas V P,Lodhi S A,Garrett D K, et al .Stress tolerancein transgenic tobacco seedlings that overexpress glutathi-one transferase and glutathione peroxidase [ J] .Plant andCell Physiology,2000,411229-1234.[ 22] 6,lo, ,. [} / F VY[ J] .S S,2007,214367-371.[ 23] Knight H, Trewavas A J,Knight M R.Calcium signallingin a rabidopsis thaliana responding to drought and salinity[ J] .The Plant,1997,121067-1078.[24] Pandey S, Tiwari S B, Upadhyaya K C, et al.Calcium sig-nalingLinking environmental signals to cellular functions[ J] .Critical Reviews in Plant Sciences,2000,19291-318.[ 25] o,L . F4 N0 F Y[ J] .\,2002,293243-246.132 j 20