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欧亚松树皮甲虫通过高度表达的专业气味受体检测兰尼龙,这种受体存在于几个功能性感觉类型中

Jothi Kumar Yuvaraj¹, Dineshkumar Kandasamy^2,3,4, Rebecca E Roberts²

¹Department of Biology, Lund University, Sölvegatan 37, 223 62, Lund, Sweden. jothi_kumar.yuvaraj@biol.lu.se.

|November 20, 2024

概括

这项研究确定了lanierone作为一个关键的气味剂,由皮甲虫Ips typographus中高度表达的气味受体ItypOR36检测到. 拉尼龙会影响甲虫对激素陷的吸引力,产生性别特异性和上下文依赖的行为反应.

科学领域:

昆虫学昆虫学是一门学科.
化学生态化学生态学
神经科学是一个神经科学.

背景情况:

昆虫在嗅觉神经元 (OSN) 上使用嗅觉受体 (OR) 来检测气味.
高表达的OR对于检测生态重要化合物至关重要,但它们在甲虫中的功能在很大程度上仍未被描述.
这项研究侧重于松树皮甲虫Ips typographus中最高度表达的OR.

研究的目的:

在Ips typographus中功能性地表征高度表达的ItypOR36.
为了识别由ItypOR36.6检测到的气味连接体.
为了研究对Ips typographus.中确定的连接体的行为反应.

主要方法:

在HEK293细胞中ItypOR36的功能表达和对64种生态相关的气味剂的选.
单传感录制 (SSR) 用于识别和描述OSN响应.
在现场杂交以确定OSN分布.
实地和实验室生物测试,以评估对已识别的配体的行为反应.

主要成果:

这种类型的OR36仅对单烯衍生基兰尼龙有敏感的反应.
一个新的,丰富的 lanierone-responsive OSN 类被确定,与其他 OSN 类共定位.
较低的lanierone释放率抑制了对聚合费洛蒙陷的吸引力,特别是在男性中.
在实验室行走生物试验中,雌性甲虫对兰尼龙有吸引力.

结论:

这项研究使用了"逆化学生态"方法来识别Ips typographus的新半化学物质.
兰尼龙OSN类的共同定位表明,与其他昆虫类相比,甲虫的外周嗅觉组织是独特的.
拉尼龙会引起性别特异性和上下文依赖的行为反应 (行走与飞行).
需要进一步的研究来确定Ips typographus的自然来源.

关键词:

这就是Ips typographus的意思.在本地化,在本地化.功能性表征的功能性表征在HEK293细胞中.嗅觉感官神经元是一种嗅觉感官神经元.费洛蒙是一种激素.

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