沈阳农业大学学报2012，Vol.43Issue(6)：749-753,5.
杂草稻中胚轴伸长的细胞形态学观察
Observation of Mesocotyl Cell Morphology of Weed Rice
摘要
Abstract
For observing the cytomorphology of mesocotyl on the dark condition in artificial climate chamber, we used rice varieties WR04 -6 and Akihikari. The elongation growth of seedling mesocotyl could occur only at dark condition. The differences of height between varieties at seedling stage were caused by mesocotyl elongation. The mesocotyl cell morphology of WR04-6 and Akihikari observed with the paraffin method showed that the number of mesocotyl cell reached 80% of total and then cell division and proliferation ceased. The cell number of longitudinal and cell length of long mesocotyl material were 100% and 400% as those of short mesocotyl material respectively. The cell division and elongation promoted elongation growth of seedling mesocotyl together during early stage of that and then it depended cell longitudinal extending later. The added cell number and cell elongation promoted mesocotyl elongation together while cell longitudinal extending made a key effect on elongation growth of mesocotyl.关键词
杂草稻/中胚轴/细胞数目/细胞长度Key words
weedy rice/ mesocotyl/ cell number/ cell length分类
农业科技引用本文复制引用
李莉,马殿荣,孙健,梁茜,陈温福..杂草稻中胚轴伸长的细胞形态学观察[J].沈阳农业大学学报,2012,43(6):749-753,5.基金项目
辽宁省自然科学基金项目(20102192) （20102192）
水稻生物学国家重点实验室开放项目(090404) （090404）
沈阳农业大学国家自然科学基金启动基金项目(20082002) （20082002）
