Soil bacterial networks are less stable under drought than fungal networks.
Soil bacterial networks are less stable under drought than fungal networks.
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DOI：
10.1038/s41467-018-05516-7
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发表时间：
2018-08-02
影响因子：
16.6
通讯作者：
Bardgett RD
中科院分区：
文献类型：
--
作者：
de Vries FT;Griffiths RI;Bailey M;Craig H;Girlanda M;Gweon HS;Hallin S;Kaisermann A;Keith AM;Kretzschmar M;Lemanceau P;Lumini E;Mason KE;Oliver A;Ostle N;Prosser JI;Thion C;Thomson B;Bardgett RD
土壤微生物群落在生态系统功能中起着至关重要的作用，但目前尚不清楚这些群落中的共生网络如何应对极端气候等干扰。这是一个重要的知识差距，因为微生物网络的变化可能会影响其功能和对未来干扰的脆弱性。在这里，我们表明，在草原生态系统中，干旱促进土壤细菌，但不是真菌，共生网络的不稳定性，细菌群落的变化更强烈地链接到恢复过程中的土壤功能比真菌群落的变化。此外，我们揭示了干旱对细菌群落及其共生网络的长期影响，通过植被组成的变化，从而减少土壤水分。我们的研究结果为干旱改变土壤微生物群落的机制提供了新的见解，这些机制具有潜在的长期后果，包括未来的植物群落组成以及地上和地下群落抵御未来干扰的能力。干旱条件可以改变土壤微生物群落的组成，但干旱对网络特性的影响尚未得到测试。在这里，de弗里斯和他的同事表明，细菌的共生网络在干旱下不稳定，但真菌没有。
Soil microbial communities play a crucial role in ecosystem functioning, but it is unknown how co-occurrence networks within these communities respond to disturbances such as climate extremes. This represents an important knowledge gap because changes in microbial networks could have implications for their functioning and vulnerability to future disturbances. Here, we show in grassland mesocosms that drought promotes destabilising properties in soil bacterial, but not fungal, co-occurrence networks, and that changes in bacterial communities link more strongly to soil functioning during recovery than do changes in fungal communities. Moreover, we reveal that drought has a prolonged effect on bacterial communities and their co-occurrence networks via changes in vegetation composition and resultant reductions in soil moisture. Our results provide new insight in the mechanisms through which drought alters soil microbial communities with potential long-term consequences, including future plant community composition and the ability of aboveground and belowground communities to withstand future disturbances. Drought conditions can alter the composition of soil microbial communities, but the effects of drought on network properties have not been tested. Here, de Vries and colleagues show that co-occurrence networks are destabilised under drought for bacteria but not fungi.
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影响因子：
9.7
作者：
Ballhausen, Max-Bernhard;de Boer, Wietse
通讯作者：
de Boer, Wietse
影响因子：
4.8
作者：
Hoover, David L.;Knapp, Alan K.;Smith, Melinda D.
通讯作者：
Smith, Melinda D.
DOI：
10.1111/nph.13832
发表时间：
2016-05
期刊：
The New phytologist
影响因子：
--
作者：
de Vries FT;Bardgett RD
通讯作者：
Bardgett RD
影响因子：
11
作者：
Barberan, Albert;Bates, Scott T.;Fierer, Noah
通讯作者：
Fierer, Noah
影响因子：
11
作者：
Barnard, Romain L.;Osborne, Catherine A.;Firestone, Mary K.
通讯作者：
Firestone, Mary K.