Lycopene Accumulation Affects the Biosynthesis of Some Carotenoid-related Volatiles Independent of E

来源 :Journal of Integrative Plant Biology | 被引量 : 0次 | 上传用户:lai34965
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
For elucidating the regulatory mechanism of ethylene on carotenoid-related volatiles (open chain) compounds and the relationship between lycopene and carotenoid-related volatiles, transgenic tomato fruits in which ACC synthase was suppressed were used. The transgenic tomato fruit showed a significant reduction of lycopene and aroma volatiles with low ethylene production. 6-methyl-5-hepten-2-one, 6-methyl-5-hepten-2-ol and geranylacetone, which were suspected to be lycopene degradation products, were lower than those in wild type tomato fruits. In order to identify whether lycopene accumulation effects the biosynthesis of some carotenoid-related volatiles independent of ethylene in tomato or not, the capability of both wild type and transgenic tomato fruits discs to convert lycopene into carotenoid-related volatiles was evaluated. The data showed that external lycopene could convert into 6-methyl-5-hepten-2-one and 6-methyl-5-hepten-2-ol in vivo, indicating that the strong inhibition of ethylene production had no effect on enzymes in the biosynthesis pathway of some carotenoid-related volatiles. Therefore, in ACS-suppression transgenic tomato fruits, the low levels of 6-methyl-5-hepten-2-one, 6-methyl-5-hepten-2-ol was due to decreased lycopene accumulation, not ethylene production. Ethylene only affected the accumulation of lycopene, and then indirectly influenceed the level of lycopene-related volatiles. For elucidating the regulatory mechanism of ethylene on carotenoid-related volatiles (open chain) compounds and the relationship between lycopene and carotenoid-related volatiles, transgenic tomato fruits in which ACC synthase was suppressed were used. The transgenic tomato fruit showed a significant reduction of lycopene and aroma volatiles with low ethylene production. 6-methyl-5-hepten-2-one, 6-methyl-5-hepten-2-ol and geranylacetone, which were suspected to be lycopene degradation products, were lower than those in wild type tomato fruits. In order to identify whether lycopene accumulation effects the biosynthesis of some carotenoid-related volatiles independent of ethylene in tomato or not, the capability of both wild type and transgenic tomato fruits discs to convert lycopene into carotenoid-related volatiles was evaluated. data showed that external lycopene could convert into 6-methyl-5-hepten-2-one and 6-methyl-5-hepten-2-ol in vivo, indicating that the strong inhibition of ethylene production had no effect on enzymes in the biosynthesis pathway of some carotenoid-related volatiles. Thus, in ACS-suppression transgenic tomato fruits, the low levels of 6-methyl-5-hepten- heptene-2-ol was due to decreased lycopene accumulation, not ethylene production. Ethylene only affected the accumulation of lycopene, and then indirectly influenced the level of lycopene-related volatiles.
其他文献
当今的建筑学经过了近三十五年的飞速发展和技术积累,已经摆脱了曾经的理论贫乏的窘迫局面,转而进入了各种观点与形式百花争鸣的时代,不再缺乏各失的理论和复杂的形式,而是要回归
本文介绍了承钢钒微合金化抗震钢筋的研制过程,研制技术方案,包括化学成分设计和炼钢、轧钢生产工艺制定以及试验结果.
本文简述了混凝土结构对热轧钢筋的基本性能要求、以及影响钢筋性能的一些因素,指出了提高热轧钢筋性能的前景和工艺进行的必要性.
本文论述了汽车轻量化研究的最新进展和取得的成果,提出了为满足汽车轻量化的要求,汽车用钢的技术发展方向和需要解决的问题.
在建筑安装工程中,预留预埋阶段的施工对整个工程建设来说是十分重要的,建筑安装工程预留预埋阶段普遍存在漏留孔洞等问题,这些问题看似简单,对整个工程的安全却至关重要。因此我
现代炼钢的淬火工艺对于热轧及二次加热相关的淬透性的精确预测提出了新的要求.处理过程中,析出沉淀粒子的复杂成分以及微观组织的发展变化迫切需要我们建立一个精确的动态液
会议
评价具有导向性,期刊评价也不例外,而且期刊评价对于期刊本身的导向性影响可能还在其次,更突出的影响体现在以在相应期刊发表论文为主要任务的研究人员及其研究取向上面,而这
期刊
对人的形象的讨论是教育人类学的永恒话题.在传统的研究当中,人的形象往往以抽象的概念、不可见的形式得以表达.本文指出每个时代、每种文化都存在着关于人的形象的假设,并有
随着人们环境保护和交通安全观念的转变,道路工程的边坡防护设计与施工越来越引起人们的重视,要确保高速公路边坡的稳定、安全、搞好环境保护,必须加强高速公路边坡防护的综合研
利用Gleeble-1500热模拟试验机研究了不同控轧控冷工艺对贝氏体型非调质钢SBL组织性能的影响.试验结果表明,最佳控轧控冷工艺制度为:加热温度为1050~11000℃,终轧温度为850~900