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两个玉米品种维管束鞘叶绿体的非光化学淬灭对干旱胁迫的响应
刘文娟1,常丽娟1,岳丽杰2,宋君1,张富丽1,王东1,吴佳蔚1,郭灵安1,雷绍荣1
Response of Non-Photochemical Quenching in Bundle Sheath Chloroplasts of Two Maize Hybrids to Drought Stress
LIU WenJuan1,CHANG LiJuan1,YUE LiJie2,SONG Jun1,ZHANG FuLi1,WANG Dong1,WU JiaWei1,GUO LingAn1,LEI ShaoRong1

图1. 干旱胁迫下玉米叶片水分状况和质膜透性
A：表型观察;B：相对含水量（RWC）;C：叶绿素a+b（Chl a+b）含量;D：超氧阴离子（O2-）含量;E：过氧化氢（H2O2）含量;F：相对电导率;G：丙二醛（MDA）含量。CK,充足浇水对照;MS,中度干旱胁迫;SS,重度干旱胁迫。误差线代表4次测量平均值的标准差。不同小写字母表示一个玉米品种在不同程度干旱胁迫下,P<0.05时有显著性差异。*和**分别表示2个玉米品种间在相同程度干旱胁迫下,P<0.05和P<0.01时有显著性差异。下同

Fig. 1. Leaf water status and lipid peroxidation in maize leaves under drought stress
A: Plant phenotypes observation; B: Relative water content (RWC); C: Chlorophyll a and b contents (Chl a+b); D: Superoxide anion radicals (O2-) content; E: Hydrogen peroxide (H2O2) content; F: Electrolyte leakage; G: Malondialdehyde (MDA) content. CK, well watered control; MS, moderate drought stress; SS, severe drought stress. Each point represents the mean±SD (n=4). Different letters indicate significant differences among one maize hybrid under progressive drought treatments at 0.05 level. One or two asterisks indicate significant differences between two maize hybrids under drought stress at P<0.05, and P<0.01, respectively. The same as below