Extreme rainfall affects assembly of the root-associated fungal community.
Extreme rainfall affects assembly of the root-associated fungal community.
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DOI：
10.1111/nph.14990
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发表时间：
2018-12
期刊：
影响因子：
--
通讯作者：
Bending GD
中科院分区：
文献类型：
--
作者：
Barnes CJ;van der Gast CJ;McNamara NP;Rowe R;Bending GD
全球变暖导致极端天气的频率增加。根相关真菌在陆地生态地球化学循环过程中发挥重要作用，但它们受极端天气影响的方式尚不清楚。在这里，我们进行了长期的现场监测根相关真菌群落的短轮伐期矮林杨柳种植园，并比较社区动态之前和之后的一次在100年一遇的降雨事件发生在英国在2012年。通过对真菌内部转录间隔区（ITS）区域进行元巴编码，对根相关真菌进行了为期3年的监测。反复的土壤测试和持续的气候监测补充了群落数据，并确定了环境和时间变化对根相关真菌群落的相对影响。在2012年生长季节初期，极端降雨之后，记录了土壤饱和度和地表水。这与外生菌根真菌的丰富度和相对丰度的崩溃有关，每种真菌的数量都下降了50%以上。土壤微生物和病原体的丰度和相对丰度增加。我们的结论是，极端降雨事件可能是重要的，但被忽视的根相关真菌群落组装的决定因素。鉴于外生菌根真菌在地球化学循环中的不可或缺的作用，这些事件可能对陆地生态系统的功能产生相当大的影响。另见https://doi.org/10.1111/nph.15086对这篇文章的评论。
Global warming is resulting in increased frequency of weather extremes. Root‐associated fungi play important roles in terrestrial biogeochemical cycling processes, but the way in which they are affected by extreme weather is unclear. Here, we performed long‐term field monitoring of the root‐associated fungus community of a short rotation coppice willow plantation, and compared community dynamics before and after a once in 100 yr rainfall event that occurred in the UK in 2012. Monitoring of the root‐associated fungi was performed over a 3‐yr period by metabarcoding the fungal internal transcribed spacer (ITS) region. Repeated soil testing and continuous climatic monitoring supplemented community data, and the relative effects of environmental and temporal variation were determined on the root‐associated fungal community. Soil saturation and surface water were recorded throughout the early growing season of 2012, following extreme rainfall. This was associated with a crash in the richness and relative abundance of ectomycorrhizal fungi, with each declining by over 50%. Richness and relative abundance of saprophytes and pathogens increased. We conclude that extreme rainfall events may be important yet overlooked determinants of root‐associated fungal community assembly. Given the integral role of ectomycorrhizal fungi in biogeochemical cycles, these events may have considerable impacts upon the functioning of terrestrial ecosystems. See also the Commentary on this article by https://doi.org/10.1111/nph.15086.
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影响因子：
--
作者：
Camy, C;Dreyer, E;Marçais, B
通讯作者：
Marçais, B
影响因子：
1.5
作者：
CHAKRAVARTY, P;UNESTAM, T
通讯作者：
UNESTAM, T
影响因子：
9.4
作者：
DURALL, DM;JONES, MD;TINKER, PB
通讯作者：
TINKER, PB
DOI：
10.1139/x90-254
发表时间：
1990-12-01
期刊：
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE
影响因子：
--
作者：
COUTTS, MP;NICOLL, BC
通讯作者：
NICOLL, BC
DOI：
10.1111/j.2517-6161.1995.tb02031.x
发表时间：
1995-01-01
影响因子：
5.8
作者：
BENJAMINI, Y;HOCHBERG, Y
通讯作者：
HOCHBERG, Y