Microbial community succession in steam-sterilized greenhouses infected with Fusarium oxysporum.
Microbial community succession in steam-sterilized greenhouses infected with Fusarium oxysporum.
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DOI：
10.1111/1758-2229.13072
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发表时间：
2022-08
影响因子：
3.3
通讯作者：
中科院分区：
文献类型：
--
作者：
镰刀菌是一种经济上重要的作物病原体，但其生命周期的大部分时间都在与不同土壤微生物群落相互作用的土壤环境中度过。常驻微生物群落和镰刀菌之间的拮抗相互作用（例如竞争）可以限制土壤中镰刀菌的生长，这可能因此减缓或阻止镰刀菌的建立。我们在花卉温室中追踪了尖孢镰刀菌，其中土壤已被蒸汽灭菌以去除镰刀菌。数据表明，在灭菌后的前90天内，土壤细菌和真菌的复苏，随后在随后的几周内迅速下降，这与F的增加有关。在灭菌后148天的尖孢菌丰度。这些随时间的变化与细菌而不是真菌群落的连续变化有关。结果表明，虽然土壤蒸汽在短期内清除了镰刀菌，但它可能会加剧重新出现，因为居民社区不断被蒸汽过程耗尽，而镰刀菌则受益于蒸汽释放的营养物质。观察结果表明，将蒸汽与微生物接种相结合可以帮助减少镰刀菌的恢复，从而在第一时间减少真菌负荷，并通过为其有害的竞争对手提供领先优势来防止随后的积累。
Fusarium is an economically important crop pathogen but spends a large part of its life cycle in bulk soil environments where it interacts with a diverse community of soil microbes. Antagonistic interactions (e.g. competition) between the resident microbial community and Fusarium could constrain the growth of Fusarium in soil, which might therefore slow or prevent Fusarium establishment. We tracked Fusarium oxysporum in floriculture greenhouses where the soil had been steam‐sterilized to remove Fusarium. The data indicated a resurgence of soil bacteria and fungi during the first 90 days post‐sterilization, followed by a rapid decline in subsequent weeks, which was associated with an increase in F. oxysporum abundance at 148 days post sterilization. These changes over time were associated with successional changes in the bacterial but not the fungal communities. The results illustrate that, although soil steaming clears Fusarium in the short term, it may exacerbate re‐emergence as the resident community is continually depleted by the steaming process while Fusarium benefits from nutrients released by steaming. Observations suggest combining steaming with microbial inoculations could help reduce the recovery of Fusarium reducing the fungal load in the first instance and preventing subsequent build‐up by giving a head start to its saprophytic competitors.
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影响因子：
48
作者：
Callahan BJ;McMurdie PJ;Rosen MJ;Han AW;Johnson AJ;Holmes SP
通讯作者：
Holmes SP
影响因子：
5.2
作者：
Schulz-Bohm K;Martín-Sánchez L;Garbeva P
通讯作者：
Garbeva P
DOI：
10.1071/fp09304
发表时间：
2010-05-20
期刊：
Functional plant biology : FPB
影响因子：
--
作者：
Anderson JP;Gleason CA;Foley RC;Thrall PH;Burdon JB;Singh KB
通讯作者：
Singh KB
影响因子：
5.2
作者：
Eisenhauer, Nico;Schulz, Wiebke;Jousset, Alexandre
通讯作者：
Jousset, Alexandre
影响因子：
6.6
作者：
Brussaard, Lijbert;de Ruiter, Peter C.;Brown, George G.
通讯作者：
Brown, George G.