Biotic and abiotic predictors of fungal colonization in grasses of the Colorado Rockies
Biotic and abiotic predictors of fungal colonization in grasses of the Colorado Rockies
复制标题
科罗拉多落基山脉草丛中真菌定殖的生物和非生物预测因子
DOI：
10.1111/ddi.12310
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发表时间：
2015
影响因子：
4.6
通讯作者：
Diez, Jeffrey
中科院分区：
文献类型：
--
作者：
Ranelli, Luciana B.;Hendricks, Will Q.;Lynn, Joshua S.;Kivlin, Stephanie N.;Rudgers, Jennifer A.;Diez, Jeffrey
AimFungal symbionts are ubiquitous in plants and can mitigate abiotic stressors associated with climate change. Predicting fungal symbiont distributions under future climates first requires knowledge of current distributions and their potential drivers.LocationWe documented colonization by fungal symbionts in perennial, cool‐season grasses along altitudinal gradients in the Rocky Mountains of Colorado, USA.MethodsAcross seven replicate altitudinal gradients, spanningc. 1400 vertical meters, we scored fungal colonization for 46 grass species. We documented altitudinal clines in colonization by both above‐ground and below‐ground fungal symbionts for the first time, including localized foliar endophytes (LFE) and systemic endophytes (epichloae) in leaves and arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE) in roots. For a subset of 16 well‐sampled grass species, we used model selection procedures to evaluate the relative importance of geography, edaphic factors and host plant identity. We also assessed the influence of host phylogenetic relatedness and colonization by co‐infecting fungi.ResultsLevels of fungal colonization varied strongly with host plant identity, but the effects of particular host species were not consistent across fungal groups. In addition to the influence of host identity, epichloae colonization declined with elevation and varied with geography (latitude/longitude) and edaphic factors. Geography and collection date were important predictors of LFE colonization, with higher colonization later in the growing season. Colonization estimates for the obligately plant‐associated fungi (epichloae, AMF) were phylogenetically conserved across the grass supertree. Positive correlations between AMF and DSE, which remained even after accounting for host plant relatedness, suggested possible synergisms between these fungal groups.Main conclusionsOur survey showed greater host specificity in patterns of fungal colonization than prior reports and revealed that different fungal symbiont groups do not share similar drivers. Conserving plant–fungal symbioses under future climates may require unique strategies for different plant species and fungal symbiont types.
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高山草类羊茅内生菌感染和遗传结构的共存模式：对生态恢复中种子采购的影响
影响因子：
2.2
作者：
H. Gonzalo;Philippe Barre;Anaïs Gibert;A. Grisard;C. West;Laurent Hazard
通讯作者：
Laurent Hazard
构建超级树：使用草科（禾本科）的实证评估。
影响因子：
6.5
作者：
N. Salamin;T. Hodkinson;V. Savolainen
通讯作者：
V. Savolainen
DOI：
10.1080/00103628309367431
发表时间：
1983-01-01
影响因子：
1.8
作者：
NELSON, DW
通讯作者：
NELSON, DW
DOI：
10.1111/j.1469-8137.2009.03097.x
发表时间：
2010-02
期刊：
The New phytologist
影响因子：
--
作者：
B. Wolfe;F. Richard;Hugh B. Cross;A. Pringle
通讯作者：
B. Wolfe;F. Richard;Hugh B. Cross;A. Pringle
影响因子：
6.5
作者：
Schardl, C. L.;Craven, K. D.;Yoshida, R.
通讯作者：
Yoshida, R.