中国水稻科学Issue(1)：97-102,6.DOI:10.3969/j.issn.1001-7216.2014.01.014
杂草稻中胚轴伸长动态及其与籽粒淀粉酶活性和可溶性糖含量的关系
Mesocotyl Elongation of Weedy Rice and Its Relationship with Grain Amylase Activities and Soluble Sugar Contents
摘要
Abstract
The dynamic process of mesocotyl elongation of weedy rice was observed in a germination test in a constant temperature incubator in darkness.The changes in amylase activities in embryos and soluble sugar contents in the process of mesocotyl elongation and their relationship were analyzed.The results showed that during the first three days after germination in darkness,the mesocotyl elongation rate was very slow and accelerated four and five days after germination.The mesocotyl elongation gradually stopped seven days after germination.The mesocotyl of the weedy rice was significantly longer than that of Liaojing 294.In the germination process of weedy rice,soluble sugar contents followed an increasing trend,together with α-amylase activity andβ-amylase activity.Mesocotyl elongation length was significantly correlated with the α-amylase activity,β-amylase activity and soluble sugar contents.The enhanced amylase activities in the beginning of weedy rice germination promoted starch degradation,supplying material and energy for mesocotyl elengation.关键词
杂草稻/中胚轴/淀粉酶活性/可溶性糖Key words
weedy rice/mesocotyl/amylase activity/soluble sugar分类
农业科技引用本文复制引用
马殿荣,孔德秀,刘晓亮,高齐,丁国华,赵明辉,唐亮,徐正进,陈温福..杂草稻中胚轴伸长动态及其与籽粒淀粉酶活性和可溶性糖含量的关系[J].中国水稻科学,2014,(1):97-102,6.基金项目
辽宁省自然科学基金资助项目(20102192) （20102192）
水稻生物学国家重点实验室开放课题资助项目(090404) （090404）
辽宁“百千万人才工程”培养经费资助项目(2012921028) （2012921028）
