Torrubiella s.lat. 的化学分类学：柱孢藻素作为 Conoideocrella 的标志物。

Chemical taxonomy of Torrubiella s. lat.: zeorin as a marker of Conoideocrella.

机构信息

National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phaholyothin Road, Klong Luang, Pathumthani 12120, Thailand.

出版信息

Fungal Biol. 2011 Apr-May;115(4-5):401-5. doi: 10.1016/j.funbio.2011.02.007. Epub 2011 Feb 17.

DOI:10.1016/j.funbio.2011.02.007

PMID:21530922

Abstract

The insect pathogens in the genus Torrubiella s. lat. were recently divided into new genera based on molecular phylogenetic characters. Isolates collected at various locations in Thailand, were tested for their productivity of a hopane-type triterpene, zeorin (6α,22-dihydroxyhopane), when cultured in potato dextrose broth under static conditions. Among the 49 strains of Torrubiella s. lat. species, Conoideocrella luteorostrata (ten strains) and C. tenuis (seven strains), all collected on scale insects (Hemiptera), produced zeorin, whereas another six strains of Orbiocrella petchii (which was recently removed from Torrubiella) failed in the detection of this secondary metabolite. All other Torrubiella s. lat. (26 strains), collected on other insect hosts including leafhoppers (eight strains), Lepidoptera (one strain), and spiders (17 strains), produced no detectable zeorin. Paecilomyces cinnamomeus (nine strains), the anamorph of C. luteorostrata, also produced zeorin. These results correspond with the recent taxonomic reclassification based on multigene phylogeny.

摘要

最近，根据分子系统发育特征，将属 Torrubiella s. lat. 中的昆虫病原体分为新属。从泰国各地收集的分离物在马铃薯葡萄糖肉汤中以静态条件培养时，测试了它们产生 hopane 型三萜类化合物 zeorin（6α,22-二羟基 hopane）的生产力。在 49 株 Torrubiella s. lat. 种中，Conoideocrella luteorostrata（10 株）和 C. tenuis（7 株），均从介壳虫（半翅目）上收集，产生了 zeorin，而最近从 Torrubiella 中分离出的另 6 株 Orbiocrella petchii 则未能检测到这种次生代谢物。所有其他 Torrubiella s. lat.（26 株），从其他昆虫宿主（包括叶蝉（8 株）、鳞翅目（1 株）和蜘蛛（17 株））上收集，未产生可检测到的 zeorin。C. luteorostrata 的无性型拟青霉属 Paecilomyces cinnamomeus（9 株）也产生了 zeorin。这些结果与最近基于多基因系统发育的分类学重新分类相对应。