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Chemical investigation of Opuntia species and Stenocereus thurberi, cacti native to North America: A search to identify essential oil compositions and to characterize cyclic siloxane compounds.

机译:北美产仙人掌的仙人掌物种和虎尾Stenocereus thurberi的化学研究:旨在鉴定精油成分和表征环状硅氧烷化合物的研究。

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摘要

This study investigates the essential oil compositions of certain cacti species native to southern Arizona and the California Channel Islands. The species studied are Opuntia littoralis (Engelm.) Cockerell., Opuntia ficus-indica L. (Mill), Opunita prolifera Engelm., Opuntia acanthocarpa var. major (Engelm. & J.M. Begelow) L.D. Benson, Opuntia phaeacantha var. discata, and Stenocereus thurberi Engelm. Drosophila mojavensis, a cactus fly, utilizes the necrotic rots of O. littoralis and S. thurberi, which have been shown to be toxic to fruit flies, Drosophila melanogaster. The oil compositions of both O. littoralis and S. thurberi was characterized at differing states of necrosis and compared to laboratory rot specimens. Toxicity analysis was performed on Drosophila melanogaster to ascertain toxicity to individual volatile compounds identified in the necrotic cactus rots. Specimens of O. littoralis, O. ficus-indica, and S. thurberi were examined for the presence of cyclic oligosiloxane compounds. These cyclic compounds were characterized by gas chromatography-mass spectrometry. Confocal microscopy was employed to identify the location of silica bodies in the cactus tissues.
机译:这项研究调查了亚利桑那州南部和加利福尼亚海峡群岛的某些仙人掌物种的精油成分。所研究的物种是立陶宛仙人掌(Enuntm littoralis),米尔库斯仙人掌(Munt),无花果树Opunita prolifera Encanm。少校(Engelm。&J.M. Begelow)L.D.本森,仙人掌phaeacantha var。迪卡塔(Datata)和斯氏小夜蛾Engelm。蝇果蝇(Drosophila mojavensis)是一种仙人掌蝇,利用了O. littoralis和S. thurberi的坏死腐烂,已证明对果蝇Drosophila melanogaster有毒。在不同的坏死状态下鉴定了O. littoralis和S. thurberi的油成分,并与实验室腐烂标本进行了比较。在果蝇上进行了毒性分析,以确定对坏死仙人掌腐烂中鉴定出的各个挥发性化合物的毒性。检查了O. littoralis,O.ficus-indica和S.thurberi的样品中是否存在环状低聚硅氧烷化合物。这些环状化合物通过气相色谱-质谱法表征。共聚焦显微镜被用来鉴定二氧化硅组织在仙人掌组织中的位置。

著录项

  • 作者

    Wright, Cynthia Rena.;

  • 作者单位

    The University of Alabama in Huntsville.;

  • 授予单位 The University of Alabama in Huntsville.;
  • 学科 Organic chemistry.
  • 学位 Ph.D.
  • 年度 2013
  • 页码 160 p.
  • 总页数 160
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TS97-4;
  • 关键词

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