Chemical Studies on Plant-Plant Interactions of Eucalyptus and Mentha Species

桉树和薄荷属植物间相互作用的化学研究

• 批准号: 60560124
• 负责人: NISHIMURA Hiroyuki
• 金额: $ 1.28万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60560124/
• 关键词: Allelopathy; Plant growth inhibitor; Terpenoid; Eucalyptus; Mentha; Structure-activity relationship

Chemical interferences by one plant with seed germination and seedling growth of another higher plant in nature are called as allelopathy. Since Molisch defined the term "allelopathy" in 1937, many scientists have been concerned with the exploration and exploitation of allelochemics. It is well known that some Eucalyptus species are surrounded by bare (grass-free) ground which are formed by the allelopathic effect in a plant ecosystem.The allelochemics of E. citriodora (lemon-scented gum) has been isolated from the leaves and identified as p-menthane-3,8-diols (cis and trans). Regio-isomers and ester derivatives of p-menthane-3,8-diols are prepared and bio-assayed on germination and growth inhibitions against several higher plants. As a results, it was elucidated that a distance between two oxygens of OH groups and a length of hydrophobic ester groups were very significant for the inhibitory activity. Furthermore, as the allelochemics of E. camaldulensis, E. delegatensis, E. pauciflora and E. viminalis, interesting terpenoids and aromatic compounds were identified.On the other hand, an allelochemics of a spearmint plant such as Mentha spicata was examined. (-)-Carvone which is a major component of spearmint oil exhibited very weak inhibition against germinating seeds and seeding of weeds. However, there is a possibility that the transformation products of (-)-carvone by microorganisms in soil may interfere with other plants. The conversion of (-)-carvone by Streptomyces species gave rise to a novel monoterpene named (+)-bottrospicatol which exhibited very strong inhibitory activity against several grasses. Studies on structure-activity relationships of allelochemics are in progress.

一种具有种子发芽和幼苗生长的植物的化学干扰在自然界中被称为Tellelopathy。由于Molisch在1937年定义了“ Tellelopathy”一词，因此许多科学家一直关注对化学化学的探索和剥削。众所周知，某些桉树物种被裸露的（无草）围绕，这些地面是由植物生态系统中的化相化效应形成的。柠檬肠球菌（柠檬味的口香糖）的化学作用已从叶子中分离出来，并被鉴定为P-EmentHane-3,3,8-二醇（CIS和Trans）。制备P-Ementhane-3,8-二醇的区域异构体和酯衍生物，并针对几个较高植物的发芽和生长抑制作用进行生物化。结果，阐明了两个OH组的氧气和一定长度的疏水酯基在抑制活性中非常重要。此外，由于研究了鉴定出有趣的萜类化合物和芳香族化合物的Camaldulensis，E。delegatensis，E。pauciflora和E. viminalis的化学化学作用。另一方面，研究了诸如Mentha Spicata等小刺激植物的化学化合物。 （ - ） - 是长矛油的主要组成部分的碳纤维表现出对发芽种子和杂草播种的抑制作用非常弱。但是，（ - ） - 土壤中微生物的转化产物可能会干扰其他植物。链霉菌物种的（ - ） - 碳纤维的转化产生了一种新颖的单苯乙烯（+） - 骨膜托托，该单酮对几种草表现出非常强的抑制活性。有关化学化学的结构活性关系的研究正在进行中。

项目成果

Hiroyuki NISHIMURA: "Studies on Highly Effective Cultivation and Integrated Utilization of Eucalyptus citriodora" Journal of the Society of Tropical Resources Technologists. 2. 1-11 (1987)

Hiroyuki NISHIMURA：“柠檬桉高效栽培与综合利用研究”热带资源技术学会杂志。

西村弘行(編): "未来の生物資源ユーカリ" 内田老鶴圃, 304 (1987)

Hiroyuki Nishimura（编辑）：“未来生物资源桉树”Uchida Rokakuba，304（1987）

Hiroyuki NISHIMURA: "Studies on Plant Flavor Chemistry and Biological Activity" Nippon Nogeikagaku Kaishi. 60. 19-29 (1986)

Hiroyuki NISHIMURA：“植物风味化学和生物活性的研究”Nippon Nogeikagaku Kaishi。

西村弘行: 日本農芸化学会誌. 60. 19-29 (1986)

Hiroyuki Nishimura：日本农业化学学会杂志 60. 19-29 (1986)

西村弘行: 南方資源利用技術研究会誌. 2. 1-11 (1986)

Hiroyuki Nishimura：南方资源利用技术研究组杂志。2. 1-11 (1986)。