罗汉果甜苷V合成生理规律的研究

【目的】探讨罗汉果甜苷V合成生理规律．【方法】通过不同品种以及遮阴、气调贮藏、低温贮藏比较试验，分析罗汉果苷类和糖类代谢的关系，以及光合作用、呼吸作用、温度对它们代谢的影响．【结果和结论】不同品种罗汉果和遮阴果实均在30d时只含罗汉果苷IIE、苷Ⅲ，蔗糖、葡萄糖含量较低，30～70d时罗汉果苷ⅡE、苷Ⅲ迅速减少、消失，蔗糖、葡萄糖含量持续升高，甜苷V出现并急剧积累接近最高含量，70—90d时仅含甜苷V，蔗糖含量继续升高，葡萄糖含量则明显下降；但是，光合速率高的品种果实葡萄糖和甜苷V含量也高；遮阴使叶片光合速率降低，果实葡萄糖和甜苷V含量却均升高；气调和低温贮藏均促进果实葡萄糖积累，而抑制甜苷V...

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Bibliographic Details
Published in华南农业大学学报 Vol. 35; no. 1; pp. 93 - 99
Main Author 莫长明 王海英 马小军 唐其 万凌云 翟勇进
Format Journal Article
LanguageChinese
Published 广西药用植物园广西药用资源保护与遗传改良重点实验室，广西南宁530023%中国医学科学院药用植物研究所，北京100193 2014
中国医学科学院药用植物研究所，北京100193%广西药用植物园广西药用资源保护与遗传改良重点实验室,广西南宁,530023%四川省中医药科学院,四川成都,610041
广西大学农学院，广西南宁530004
天津中医药大学中药学院，天津300193%广西大学农学院，广西南宁530004
Subjects
光合速率
甜苷V
罗汉果
葡萄糖
酶活性
罗汉果
葡萄糖
glucose
甜苷
photosynthetic rate
光合速率
enzymatic activity
mogroside
Siraitia grosvenorii
酶活性
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ISSN1001-411X

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Summary:【目的】探讨罗汉果甜苷V合成生理规律．【方法】通过不同品种以及遮阴、气调贮藏、低温贮藏比较试验，分析罗汉果苷类和糖类代谢的关系，以及光合作用、呼吸作用、温度对它们代谢的影响．【结果和结论】不同品种罗汉果和遮阴果实均在30d时只含罗汉果苷IIE、苷Ⅲ，蔗糖、葡萄糖含量较低，30～70d时罗汉果苷ⅡE、苷Ⅲ迅速减少、消失，蔗糖、葡萄糖含量持续升高，甜苷V出现并急剧积累接近最高含量，70—90d时仅含甜苷V，蔗糖含量继续升高，葡萄糖含量则明显下降；但是，光合速率高的品种果实葡萄糖和甜苷V含量也高；遮阴使叶片光合速率降低，果实葡萄糖和甜苷V含量却均升高；气调和低温贮藏均促进果实葡萄糖积累，而抑制甜苷V合成．这些结果表明，罗汉果甜苷V由低糖苷与葡萄糖逐渐结合转化而来，通过调控生育后期叶片光合速率与果实呼吸来增加葡萄糖量不能促进其合成积累，其合成积累所需葡萄糖量是充足的，主要限制因子可能是低糖苷量和合成关键酶活性．
Bibliography:[ Objective ] To discuss physiological regularities of Siraitia grosvenorii mogroside V biosynthe- sis. [ Method ] Comparative experiments of variety, shading, gas storing and low-temperature storing were carried out. Through these experiments, correlations between Siraitia grosvenorii mogrosides and saccha- rides metabolizing in fruits, effects of photosynthesis, respiration and temperature on them were analysed. [ Result and conclusion ] In 30 d fruits, mogrosides were mainly mogroside I1 E and m, sucrose and glu- cose content were low. During 30 - 70 d, mogroside 11 E and m content rapidly decreased ; sucrose and glucose content increased; mogroside V occrred, and its content sharply rose to near the peak value. During 70- 90 d, mogroside V was what only detected and found among rnogrosides; sucrose content continually increased; glucose content obviously decreased. The higher photosynthetic rates of the varie- ty, the higher its mogroside V and glucose content. In shading conditions, photosynthetic rate o
ISSN:1001-411X