Atmospheric pollution, soil nutrients and climate effects on Mucoromycota arbuscular mycorrhizal fungi.
Atmospheric pollution, soil nutrients and climate effects on Mucoromycota arbuscular mycorrhizal fungi.
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大气污染，土壤养分和气候对粘膜菌根菌根真菌的影响。
DOI：
10.1111/1462-2920.16040
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发表时间：
2022-08
影响因子：
5.1
通讯作者：
Suz, L. M.
中科院分区：
文献类型：
--
作者：
Kowal, J.;Arrigoni, E.;Jarvis, S.;Zappala, S.;Forbes, E.;Bidartondo, M. I.;Suz, L. M.
内gonales中的细根内生菌根真菌（Mucoromycota arbuscular mycorrhizal fungi, M - AMF）在全球范围内至少与Glomeromycota AMF （G - AMF）一样重要，但对影响M - AMF多样性和定植的环境因素知之甚少，部分原因是它们通常只与G - AMF共同定植。野生淹没石松种群主要与M - AMF形成菌根，因此可以集中研究M - AMF的环境驱动因素。通过显微镜检查和DNA测序，我们测量了连续三个季节M - AMF的定植和多样性，并模拟了这些响应变量与环境数据之间的相互作用。研究发现，M - AMF定植与土壤S、P、C:N比、电导率和之前被忽视的微量元素Mn之间存在显著关系。估计N沉降与M - AMF定植呈负相关。在水草根中鉴定出39个内生性腺功能分类单元（Endogonales Operational Taxonomic Units, OTUs），其多样性高于以往的研究成果。该研究首次证明了M - AMF对与空气污染有关的土壤变量具有明显的生态偏好。未来的研究需要现场水平的大气污染监测来指导荒原和草原菌根真菌的临界负荷政策。
Fine root endophyte mycorrhizal fungi in the Endogonales (Mucoromycota arbuscular mycorrhizal fungi, M‐AMF) are now recognized as at least as important globally as Glomeromycota AMF (G‐AMF), yet little is known about the environmental factors which influence M‐AMF diversity and colonization, partly because they typically only co‐colonize plants with G‐AMF. Wild populations of Lycopodiella inundata predominantly form mycorrhizas with M‐AMF and therefore allow focussed study of M‐AMF environmental drivers. Using microscopic examination and DNA sequencing we measured M‐AMF colonization and diversity over three consecutive seasons and modelled interactions between these response variables and environmental data. Significant relationships were found between M‐AMF colonization and soil S, P, C:N ratio, electrical conductivity, and the previously overlooked micronutrient Mn. Estimated N deposition was negatively related to M‐AMF colonization. Thirty‐nine Endogonales Operational Taxonomic Units (OTUs) were identified in L. inundata roots, a greater diversity than previously recognized in this plant. Endogonales OTU richness correlated negatively with soil C:N while community composition was mostly influenced by soil P. This study provides first evidence that M‐AMF have distinct ecological preferences in response to edaphic variables also related to air pollution. Future studies require site‐level atmospheric pollution monitoring to guide critical load policy for mycorrhizal fungi in heathlands and grasslands.
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影响因子：
11
作者：
Dumbrell, Alex J.;Nelson, Michaela;Fitter, Alastair H.
通讯作者：
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影响因子：
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作者：
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通讯作者：
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