摘要
选择 8个耐热性不同的番茄品种种植在地处亚热带的日本最南部石垣市 ,测定夏季高温环境下花粉粒的败育率 ,并据此将其分成耐热型和热敏型品种 ,分析高温胁迫下花药中 4类小分子热激蛋白的转录。结果表明 ,番茄花药中含有组成性的细胞质小分子热激蛋白和线粒体小分子热激蛋白mRNA ;高温季节细胞质小分子热激蛋白和线粒体小分子热激蛋白基因转录明显 ;
Eight tomato cultivars with different heat tolerance were planted in the subtropical area.The ratios of pollen sterile were checked in the summer.According to pollen sterility,the tomato plants were classified into two types:heat tolerant type and heat sensitive type.Meanwhile,the transcription of four types of small heat shock protein genes in tomato anthers were analyzed.The constitutive mRNA of cytosolic and mitochondrial located small heat shock protein genes were detected in the anthers.The significant heat induced transcription of cytosolic and mitochondrial locted sHSP genes occurred in the summer.The temperature corresponding to the sHSP transcription peak in anthers of heat sensitive cultivars was lower than that of the heat tolerance cultivars.
出处
《园艺学报》
CAS
CSCD
北大核心
2001年第5期403-408,共6页
Acta Horticulturae Sinica
基金
国家自然科学基金资助项目 (39770 0 76 )
