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Updated: May 21, 2026

08:16
Inoculation Strategies to Infect Plant Roots with Soil-Borne Microorganisms
Published on: March 1, 2022
エンドフィティックな昆虫寄生菌は,窒素を昆虫から植物に直接転移させます
S W Behie1, P M Zelisko, M J Bidochka
1Department of Biological Sciences, Brock University, St. Catharines, Ontario, Canada.
まとめ
メタヒジウム菌は,昆虫から派生した窒素を植物に移すことができる. この研究は,三者間の相互作用における植物による活性窒素獲得が,土壌の窒素循環に影響することを示しています.
科学分野:
- 菌類学 菌類学とは
- 植物科学 植物科学について
- 土壌生態学 土壌生態学
背景:
- 植物は主に共生細菌と分解によって窒素を吸収する.
- 血管系植物は,しばしば,エンドフィティックな真菌と共生関係を形成します.
- メタヒジウム (metarhizium) は,一般的な内分植物であり,また,昆虫の病原体であり,潜在的な窒素源である.
研究 の 目的:
- Metarhiziumが昆虫由来窒素を植物に積極的に転送できるかどうかを調査する.
- 三国間の相互作用の中で窒素獲得におけるメタヒジウムの役割を調査する.
主な方法:
- Metarhizium robertsii.を研究するために,土壌のマイクロコスモスを利用しました.
- 昆虫に注射された (15) N-ラベルの窒素.
- トラックされた (15) Nハニコット豆とスイッチグラスのアミノ酸への組み込み.
主要な成果:
- M. robertsii. を経由した昆虫由来窒素の植物への転移が実証されています.
- (15) Nは植物性アミノ酸にうまく組み込まれました.
- 植物・真菌・昆虫の相互作用における活性窒素移転の証拠.
結論:
- メタヒジウムは,植物が昆虫の餌から活性窒素を吸収することを促進する.
- この三者間の相互作用は,土壌の窒素循環において重要な役割を果たします.
- エンドフィティック菌は,植物への直接的な窒素管として機能することができます.
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