江西农业大学学报Issue(3)：435-440,6.DOI:10.13836/j.jjau.2015067
STS处理对富贵竹切叶保鲜效果的影响
Effects of STS Treatment on Preservation of Cutting Dracaena sanderiana ‘Virens’
摘要
Abstract
In this study,the effects of 0,5,10,15 mmol/L STS treatments on the active oxygen metabolism and the preservation of cutting Dracaena sanderiana‘Virens’ were studied aiming at the leaf yellowing prob-lem in the storage and transportation.The results showed that:( 1) SOD and CAT enzymes played a major role in scavenging oxygen free radicals of Dracaena sanderiana ‘Virens’ in the early post-harvest storage.POD played a vital role in promoting the senescence of Dracaena sanderiana‘Virens’ ,with involving in a large for-mation of H2 O2( r=0.843 4**) and the degradation of chlorophyll ( r=-0.822 2**) during the postharvest storage.(2) 10 mmol/L STS treatment significantly suppressed the increase of POD activity and the accumula-tion of H2O2 content of Dracaena sanderiana ‘Virens’ leaves during the storage,and significantly improved SOD activity within 7 days after harvest.It reduced CAT activity and O2-· content and inhibited the increase of MDA.In addition,10 mmol/L STS treatment also significantly inhibited the decrease of total soluble sugar con-tent of Dracaena sanderiana ‘Virens’ leaves,delayed the degradation of chlorophyll for 6 d,postponed the time of leaf yellowing,and well maintained the leaf water content ( water content essentially unchanged) .关键词
富贵竹/叶绿素/活性氧/保鲜Key words
Dracaena sanderiana ‘Virens’/chlorophyll/active oxygen metabolism/preservation分类
农业科技引用本文复制引用
王俊宁,刘振强,刘付东标,李润唐..STS处理对富贵竹切叶保鲜效果的影响[J].江西农业大学学报,2015,(3):435-440,6.基金项目
国家级大学生校外实践教学基地资助项目（ GDOU2013040301）、广东省高等学校本科特色专业资助项目（2010189）、综合改革试点专业资助项目（ GDOU2013040402）和广东省湛江市2012年度第二批非资助科技攻关计划项目（2012C3102005）。 （）
