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在Metarhizium robertsii中DHN衍生的黑色素通路的分歧

Linan Xie¹, Yang Liu¹, Yujie Zhang²

¹Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun South Street, Beijing, 100081, People's Republic of China.

World journal of microbiology & biotechnology

|September 18, 2024

概括

双氨 (DHN) 黑色素增强了真菌的抗压能力. 这项研究揭示了Metarhizium真菌中的两个不同的色素通路,其中的中间体提供紫外线保护,有助于生物控制应用.

科学领域:

菌类学菌类学是指菌类学.
生物化学生物化学
遗传学遗传学是一个

背景情况:

二氨 (DHN) 黑色素对真菌的抗压力,发育和致病性至关重要.
DHN 黑色素有助于生物控制像 Metarhizium spp. 这样的真菌. 在环境生存和昆虫感染方面.
在Metarhizium spp.中DHN黑色素的精确生物合成起源. 由于路径分歧,仍然不清楚.

研究的目的:

为了阐明复杂的DHN黑色素生物合成途径在Metarhizium spp.
识别新型色素中间体及其特性.
评估这些颜料和中间体在抗应力方面的作用.

主要方法:

来自Metarhizium spp. 的生物合成酶的异质表达. 在Saccharomyces cerevisiae中.
颜料中间体及其结构的分析.
使用重组酵母菌株进行抗压力测试.

主要成果:

在Metarhizium roberstii中确认了DHN生物合成.
发现了一种新的纳夫托皮龙中间体 (化合物8),产生一种独特的色素.
确定了两条路径之间的多基基介质结构和修改步骤的差异.
证明DHN及其纳夫托皮龙对应物在聚合之前都能提供紫外线抗性.

结论:

这项研究阐明了复杂而多样化的真菌黑色素生物合成机制.
在Metarhizium spp.中确定了两个不同的色素通路.
颜料中间体,包括新型纳夫托皮龙,有助于抗UV压力.
这些发现在提高农业中生物控制真菌的有效性方面具有潜在的应用.

关键词:

甲地 spp. 甲地 spp. 在二氧化纳乙烯-(DHN) 黑色素.昆虫病原菌类的真菌.聚基化合成酶 (PKS) 是一种聚基化合成酶.抗压力抗压力抗压力

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