Preliminary study on a gravity－insensitive rice mutant  

作　　者：金静 朱诚 张红心 孙宗修 

机构地区：[1]StateKeyLaboratoryofPlantPhysiology＆BiochemistryZhejiangUniversity,Hangzhou310029,China [2]StateKeyLaboratoryofRiceBiology,ChinaNationalRiceResearchInstitute,Hangzhou310006,China

出　　处：《Journal of Zhejiang University Science》2004年第2期144-148,共5页浙江大学学报（自然科学英文版）

摘　　要：A gravity-insensitive mutant was isolated from rice (Oryza sativa L. cv. Zhonghua 11) transformed by Agrobacterium tumefaciens. The mutant's shoot growth (prostrate growth) was insensitive to gravity; whereas root growth displayed a normal positive gravitropism. Histological observation of root caps and leaf sheaths indicated that there was no significant difference in the number and size of amyloplasts in cells of the mutant and cells of the wild type.A gravity-insensitive mutant was isolated from rice (Oryza sativa L. cv. Zhonghua 11) transformed by Agro-bacterium tumefaciens. The mutants shoot growth (prostrate growth) was insensitive to gravity; whereas root growth dis-played a normal positive gravitropism. Histological observation of root caps and leaf sheaths indicated that there was no significant difference in the number and size of amyloplasts in cells of the mutant and cells of the wild type.

关 键 词：Oryza sativa L. Gravity-insensitive mutant GRAVITROPISM AMYLOPLAST 

分 类 号：S511[农业科学—作物学]