| 杏果实发育过程中有机酸积累与相关代谢酶的关系 |
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| 引用本文： | 陈美霞,赵从凯,陈学森,郝会军,张宪省.杏果实发育过程中有机酸积累与相关代谢酶的关系[J].果树学报,2009,26(4). |
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| 作者姓名： | 陈美霞 赵从凯 陈学森 郝会军 张宪省 |
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| 作者单位： | 陈美霞,CHEN Mei-xia(潍坊职业学院园林工程系,山东潍坊,261031;山东农业大学作物生物学国家重点实验室,山东泰安,271018);赵从凯,郝会军,ZHAO Cong-kai,HAO Hui-jun(潍坊职业学院园林工程系,山东潍坊,261031);陈学森,张宪省,CHEN Xue-sen,ZHANG Xian-sheng(山东农业大学作物生物学国家重点实验室,山东泰安,271018) |
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| 基金项目： | 山东省优秀中青年科学家科研奖励基金 |
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| 摘 要： | 以新世纪杏为试材,测定了果实发育过程中有机酸质量分数及相关代谢酶—柠檬酸合成酶(CS)、磷酸烯醇式丙酮酸羧化酶(PEPC)、乌头酸酶(ACO)和苹果酸脱氢酶(MDH)的活性,并对果实中有机酸积累与酶活性的关系进行了分析。结果表明,杏果实有机酸主要有苹果酸和柠檬酸,成熟果实中苹果酸占总酸量的95%以上,在果实发育过程中,有机酸质量分数缓慢上升,花后51d达最大值,之后逐渐下降。相关分析表明,苹果酸质量分数与MDH活性呈正相关,与CS活性及ACO活性呈负相关。柠檬酸质量分数与CS活性呈正相关,与MDH活性呈显著负相关,相关系数为-0.8675*。研究认为,CS、MDH和ACO是杏果实有机酸积累的主要酶,PEPC的作用不大。
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| 关 键 词： | 杏 有机酸 有机酸代谢酶 |
Relationship between accumulation of organic acid and organic acid-me-tabolizing enzymes during apricot fruit development |
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| CHEN Mei-xia,ZHAO Cong-kai,CHEN Xue-sen,HAO Hui-jun,ZHANG Xian-sheng.Relationship between accumulation of organic acid and organic acid-me-tabolizing enzymes during apricot fruit development[J].Journal of Fruit Science,2009,26(4). |
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| Authors: | CHEN Mei-xia ZHAO Cong-kai CHEN Xue-sen HAO Hui-jun ZHANG Xian-sheng |
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| Institution: | CHEN Mei-xia1,2,ZHAO Cong-kai1,CHEN Xue-sen2,HAO Hui-jun1,ZHANG Xian-sheng2 |
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| Abstract: | The contents of organic acids and the activities of organic acid-metabolizing enzymes,including citrate synthase (CS), phosphoenolpyruvate carboxylase(PEPC), Aconitase(ACO), and malate dehydrogenase(MDH) were measured during the fruit development of Xinshiji apricot,and their correlations were analyzed. The results showed that there were malic acid and citric acid in fresh apricot fruit,and malic acid was the dominant (95%) in ripe fruit. Concentration of organic acid gradually increased during fruit develo... |
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| Keywords: | Apricot Organic acid Organic acid-metabolizing enzymes |
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