| 粤西1号芒果成熟阶段的蔗糖代谢 |
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| 引用本文： | 魏长宾,武红霞,马蔚红,王松标,孙光明. 粤西1号芒果成熟阶段的蔗糖代谢[J]. 热带作物学报, 2009, 30(6): 735-739 |
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| 作者姓名： | 魏长宾 武红霞 马蔚红 王松标 孙光明 |
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| 作者单位： | 中国热带农业科学院南亚热带作物研究所,广东湛江,524091 |
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| 基金项目： | 国家科技基础条件平台项目，农业科技成果转化项目，农业部"948"项目(No.2006-G33):林业科技支撑计划，公益性行业(农业)科研专项 |
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| 摘 要： | 以粤西1号为试材研究了芒果果实成熟阶段淀粉、葡萄糖、果糖和蔗糖的含量以及蔗糖代谢相关酶-酸性转化酶(AI)、中性转化酶(NI)、蔗糖合成酶(SS)和蔗糖磷酸合成酶(SPS)的活性变化.结果表明:采收前淀粉含量逐渐减少,采收后快速减少;葡萄糖含量采收后呈先增后减的趋势,果糖含量采收前缓慢增加,采收后开始迅速增加,蔗糖变化与果糖变化趋势一致,完熟时含量最多的糖为蔗糖(62.55 mg,g),果糖次之(44.45 mg/g),葡萄糖最少(2.87mg/g).AI、NI、SS、SPS在采收前活性差别不大,在后熟阶段,AI、SS、SPS活性显著增加,且SPS活性达到最高值.粤西1号糖代谢以积累蔗糖为主,2种酶SPS和SS起关键作用.
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| 关 键 词： | 芒果 糖积累 转化酶 蔗糖合成酶 蔗糖磷酸合成酶 |
Sucrose Metabolism in Fruits of Mango Cultivar Yuexi No.1(Mangifera indica L.)at the Mature Stage |
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| Wei Changbin,Wu Hongxi,Ma Weihong,Wang Songbiao and Sun Guangming. Sucrose Metabolism in Fruits of Mango Cultivar Yuexi No.1(Mangifera indica L.)at the Mature Stage[J]. Chinese Journal of Tropical Crops, 2009, 30(6): 735-739 |
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| Authors: | Wei Changbin Wu Hongxi Ma Weihong Wang Songbiao Sun Guangming |
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| Affiliation: | Wei Changbin,Wu Hongxia,Ma Weihong,Wang Songbiao,Sun Guangming South Subtropical Crops Research Institute,CATAS,Zhanjiang,Guangdong 524091 |
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| Abstract: | Fruits of mango cultivar Yuexi No.1 (Mangifera indica L.) at the mature stage were collected and detected in terms of starch, glucose, fructose and sucrose, as well as acid invertase (AI), neutral invertase (NI), sucrose synthase (SS) and sucrose phosphate synthase (SPS). The starch content in the fruits decreased slightly before harvest but sharply after harvest; the glucose content increased initially but decreased later after harvest; the fructose content increased slightly before harvest and sharply aft... |
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| Keywords: | mango sucrose accumulation invertase sucrose synthase sucrose phosphate synthase |
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