热带作物学报2018，Vol.39Issue(2)：267-273,7.DOI:10.3969/j.issn.1000-2561.2018.02.009
水稻转绿型新叶黄化突变体ygr的表型特征与光合特性研究
Characteristics of Phenotype and Photosynthesis in a Rice Yellow-green Revertible New Leaf Mutant (ygr)
摘要
Abstract
In this study,the dynamic changes of leaf color phenotype of a rice leaf mutant yellow-green revertible (ygr)at different growth stages were observed,and a temperature sensitive test was carried out,and its photosynthetic and chlorophyll fluorescence kinetic parameters were measured.Results showed that each new leaf of the mutant ygr showed yellower significantly both at seedling and tillering stages,while it had no difference at booting stage,compared with the wild type.Temperature sensitivity tests under four different constant temperature conditions showed that the leaf mutant phenotype of the mutant ygr was appeared at low temperature.Values of Pn,Fv/Fm,Fv'/Fm',ΦPSⅡ and ETR in yellow leaves of the mutant ygr,which did not turn green,was 8.87±1.67,0.70±0.04,0.27±0.07,0.17±0.05 and 89.84±28.29,respectively,and showed significantly lower than those of the wild type.These results clearly identified the phenotypic and photosynthetic characteristics of the mutant ygr.The research aimed to provide a theoretical basis for studying the molecular regulation mechanism of the mutant ygr and promoting its application in rice breeding.关键词
水稻/叶色突变体/表型/光合速率/叶绿素荧光Key words
rice/leaf mutant/phenotype/photosynthesis rate/chlorophyll fluorescence分类
农业科技引用本文复制引用
林秋云,沈建凯,谢振宇,贺治洲,尹明,袁佳..水稻转绿型新叶黄化突变体ygr的表型特征与光合特性研究[J].热带作物学报,2018,39(2):267-273,7.基金项目
海南省财政科技计划资助(No.20163129) （No.20163129）
中国热带农业科学院基本科研业务费专项资金(No.1630032016026) （No.1630032016026）
中国热带农业科学院基本科研业务费专项资金(No.1630032016021). （No.1630032016021）
