摘要
以番茄‘辽园多丽’品种为材料 ,比较花蕾期、开花期及幼果期的小花 (果 )柄对乙烯诱导脱落的敏感性。结果表明 ,开花期小花柄最易接受乙烯的诱导而脱落 ,2 0 μL·L-1 乙烯是最佳诱导浓度。该浓度处理的小花柄在脱落后期 ,各部位POD、CMC Na酶及Exo PG活性升高 ,但不同部位的POD、CMC Na酶、Exo
Pedicels of Lycopersicon esculentum Mill‘liaoyu an duoli'were harvested at three developmental stages,namely at the anthesis,bud stage and on the tenth day after flower.The abscission sensitivity of pedicels e xplants induced by ethylene was investigated.The results were showed as followin g:Anthesis was the stage most liable to shell of pedicels explants induced by e thylene and the optimum concentrate was 20μL·L -1 .There was a sig nificant increasement in the activity of POD and CMC-Na enzyme in abscission zo ne,distal side and proximal side of pedicels explants at the end of ethylene tr eatment in optimum concentrate.However,no clear relationship between the activi ty of these enzymes and the soluble protein content was observed.
出处
《园艺学报》
CAS
CSCD
北大核心
2003年第5期554-558,共5页
Acta Horticulturae Sinica
基金
国家"863"计划资助项目 (2 0 0 1AAZ470 3 1)
国家"十五"重点科技攻关项目 (2 0 0 1BA50 3B0 6)
