辽宁农业科学Issue(5)：7-12,6.
水分胁迫对玉米穗位叶叶肉细胞超微结构的影响
Effect of Water Stress on Chloroplast Ultrastructure of Maize
摘要
Abstract
The effects of different irrigation amount on chloroplast ultrastructure of maize were studied. The results showed that under water deficit condition, mesophyll cell shrinked, cell "garland-type" structure disappeared ; cell wall became narrow, appeared plasmolysis phenomenon; chloroplast shape changed and drifted from the cell periphery to the center, membrane disintegrated; Mitochondrial outer and inner membranes and ridge was fuzzy, outer membrane expanded or split; lamellar structure was chaos, stroma lamellae extruded to the chloroplast ends and split. With the increase of irrigation amount, mesophyll cell" garland-type" structure is clearly visible; the cell wall hierarchy and ultrastructure characteristics wad clear; chloroplast was gradually clear, with a long oval or spindle shape, close to the cell wall, membrane was clear; Mitochondrion was spherical or oval, double film structure was complete and inner ridge was clear; lamellar thicked, structure was gradually complete and regular arranged, grana and stroma lamellae were visible. Therefore, it was seen that there was influence of water stress at late growth stage in maize, premature senescence appeared and yield decreased significantly under water stress.关键词
玉米/水分胁迫/叶绿体/超微结构Key words
Maize/ Water stress/ Chloroplas/ Ultrastructure分类
农业科技引用本文复制引用
穆迎春,汪仁,孙文涛,宫亮,汪岐禹,李小婉..水分胁迫对玉米穗位叶叶肉细胞超微结构的影响[J].辽宁农业科学,2012,(5):7-12,6.基金项目
国家"科技支撑"项目(2011BAD16B12-01,2012BAD04B03) （2011BAD16B12-01,2012BAD04B03）
加拿大国际植物营养研究所(IPNI)项目 （IPNI）
辽宁省重大科技专项(2011201028). （2011201028）
