微生物 の 群れ の 移動 は,変化 し て いる 気候 に 対する 木 の 耐性 を 向上 さ せる
Cassandra M Allsup1, Isabelle George1, Richard A Lankau1
1Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI, USA.
まとめ
植物の微生物は 樹木が気候変動から 生き残るのを助けます 異なる気候の微生物で苗を接種することで 干ばつや暑さや寒さのストレスで 生存率が向上し 森林管理の新たな戦略が提供されました
科学分野:
- エコロジー
- 環境科学
- 微生物学
背景:
- 気候変動は 進化した環境の許容範囲を超えて 植物種に絶滅の危険性をもたらします
- 植物は共生的な微生物のコミュニティに依存し 特徴や適応力に影響を与えます
- 微生物の結合は 植物の気候への耐性を得るための 新しい経路を提供するかもしれません
研究 の 目的:
- 微生物のコミュニティが樹木の苗木に 気候耐性を与えるかどうかを調査する.
- 異なる気候のコミュニティからの微生物の予防接種が,ストレス下での苗木の生存に与える影響を決定する.
主な方法:
- 木の苗は様々な気候の微生物集団で 接種されました
- 種子生存率は,模擬の干ばつ,暑さ,寒さのストレス条件下で評価されました.
- 微生物群の構成,特に状菌類は,ストレス耐性に関連して分析された.
主要な成果:
- 乾燥,暖かい,または寒い場所からの微生物で接種された苗は,それぞれの干ばつ,熱,または寒いストレス下での生存を向上させました.
- 干ばつ耐性は,状菌類の多様性の増加と関連していた.
- 寒さ耐性は菌類の富の減少と相関しており,適応していない微生物を除外する利点を示唆しています.
結論:
- 微生物のコミュニティは 気候変動に対する植物の耐性を媒介する上で 重要な役割を果たします
- 気候に起因する微生物の免疫剤を活用することで 森林の生態系の適応力を高めることができます
- この微生物による影響を理解することは 気候変動下で森林の予測と管理に不可欠です
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