‘金煌’杧胚正常与胚败育果实内源多胺的变化  

The Change of Endogenous polyamines in ‘Jinhuang' Mango Fruit with Normal and Aborted Embryo

作　　者：贺军虎[1] 陈业渊[1] 赵小青[1] 陈华蕊[1] 

机构地区：[1]中国热带农业科学院热带作物品种资源研究所,海南儋州571737

出　　处：《热带作物学报》2013年第10期1972-1976,共5页Chinese Journal of Tropical Crops

基　　金：农业部公益性行业科技项目(No.201203092)

摘　　要：通过对果实中自由态多胺(PAs)含量与胚胎败育关系研究发现:腐胺(Put)是杧果PAs的主要组成部分。败育胚胎的腐胺、亚精胺(Spd)、精胺(Spm)的含量以及(Spd+Spm)/Put、Spm/PAs的比值均小于胚胎发育正常果实,且差异显著。在胚胎败育的关键时期,胚胎正常果肉中Put、Spd的含量升高的幅度大于胚胎败育的,但是(Spd+Spm)/Put、Spm/PAs与胚胎败育果实果肉相比下降,这些因素与胚胎败育有关;果肉中Put含量维持在高水平的时间较长,Spm含量及其Spm/PAs比值在40 d后急剧升高为胚胎正常发育的果实在体积上超过败育的起到重要的作用。The relationship between the polyamines and embryo was studied by analyzing the free polyamine content in mango fruit.The result showed that putrescine was the predominant polyamine in the three fractions,Put,Spd,Spm and （Spd＋Spm） /Put were lower in embryo aborted than those in normal,and showed significant difference between them.During the critical period of embryo development,Put and Spd contents increased to higher values in pulp than those in aborted one,but the ratios of （Spd＋Spm） /Put and Spm/PAs were lower than those in seedless fruit,all of the factors involved in the embryo aborting.Put contents in pulp was maintained at higher level for a relatively long time,Spm contents and Spm/PAs raised sharply after 40 days fruit set played an important roles in the development period of the embryo normal fruit exceed than seedless fruit in size.

关 键 词：杧果 胚胎败育 多胺 

分 类 号：S661.2[农业科学—果树学]