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诱导子介导的长春花悬浮细胞和芽培养物中异分支酸合酶的诱导和 2,3-二羟苯甲酸的积累。

Elicitor-mediated induction of isochorismate synthase and accumulation of 2,3-dihydroxy benzoic acid in Catharanthus roseus cell suspension and shoot cultures.

机构信息

Leiden/Amsterdam Centre for Drug Research, Division of Pharmacognosy, Gorlaeus Laboratoria, Leiden University, P.O. Box 9502, 2300, RA - Leiden, The Netherlands.

出版信息

Plant Cell Rep. 1994 Dec;14(2-3):188-91. doi: 10.1007/BF00233788.

Abstract

After elicitation, cell suspension cultures of Catharanthus roseus accumulate phenolic compounds. The major phenolic compound produced was isolated and identified as 2,3-dihydroxybenzoic acid (DHBA). The accumulation of this compound is a rapid response to the addition of elicitor; within 6 h after the addition of elicitor, DHBA concentration reached 6.3 mg/l cell suspension. DHBA was not detected in non-elicited cells. The formation of DHBA in elicited cells was correlated with the induction of the enzyme isochorismate synthase (ICS). Shoot cultures of C. roseus also presented a strong induction of ICS after elicitation. Due to its biological activity, DHBA could play a role in the defence mechanism of C. roseus.

摘要

长春花细胞悬浮培养物在激发后会积累酚类化合物。分离并鉴定出主要的酚类化合物为 2,3-二羟基苯甲酸(DHBA)。这种化合物的积累是对激发子添加的快速响应;在添加激发子后 6 小时内,DHBA 浓度达到细胞悬浮液 6.3 毫克/升。未受激发的细胞中未检测到 DHBA。在被激发的细胞中形成 DHBA 与诱导异分支酸合酶(ICS)有关。长春花的芽培养物在激发后 ICS 也强烈诱导。由于其生物活性,DHBA 可能在长春花的防御机制中发挥作用。

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