Host plant utilization in insect attraction in the reproductive stage of rust fungi

锈菌繁殖阶段寄主植物的引虫利用

• 批准号: 23570021
• 负责人: MIYAKE Takashi
• 金额: $ 3.49万
• 依托单位: Gifu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23570021/
• 关键词: 進化生態; 生物間相互作用; 昆虫誘引; 蜜腺形成; 柄子蜜; 精子器; ナシ赤星病; CRABS CLAW; サビキン

Rust fungi are obligate parasites on plants. Little is known in detail about how they use their host plants. They attract insects by secreting nectar and use them as vectors of their gametes in reproduction, which is quite similar to the function of flowers. I investigated how rust fungi use their host plants in this stage using chemical ecological, genetic and morphological approaches. Our results suggested that volatiles emitted from spermatogonia of the investigated species are not important in insect attraction, that CRABS CLAW, the gene which is expressed in the nectary developmental stage in host plants, is expressed around spermatogonia during the nectary developmental stage, and that nectar precursors are found in fungus cells. These results imply the possibility that host plants function in nectar secretion in rust fungus reproduction on plants.

锈菌是植物上的专性寄生虫。 关于它们如何利用宿主植物的细节知之甚少。它们通过分泌花蜜来吸引昆虫，并在生殖过程中将其用作配子的载体，这与花的功能非常相似。我调查了锈菌如何利用他们的寄主植物在这一阶段使用化学生态学，遗传学和形态学的方法。我们的研究结果表明，所调查的物种的精原细胞发出的挥发物是不重要的昆虫吸引，蟹爪，在蜜腺发育阶段在寄主植物中表达的基因，在蜜腺发育阶段的精原细胞周围表达，花蜜前体被发现在真菌细胞。 这些结果暗示寄主植物在锈菌在植物上的繁殖过程中可能具有分泌花蜜的功能。

项目成果

サビキンの有性世代における媒介者誘引メカニズムについて

关于Sabikin有性世代中介导吸引机制

• 发表时间: 2013
• 作者: 本田薫;三宅崇
• 通讯作者: 三宅崇