期刊
FUNGAL ECOLOGY
卷 36, 期 -, 页码 63-74出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.funeco.2018.07.009
关键词
Arbuscular mycorrhizal fungi; Dark septate endophytes; Phosphorus; Nitrogen; Alpine plants; Plant density; Snowpack
资金
- National Science Foundation [DEB -1457827]
- Niwot Ridge LTER program [NSF DEB - 1637686]
Arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE) are two fungal groups that colonize plant roots and can benefit plant growth, but little is known about their landscape distributions. We performed sequencing and microscopy on a variety of plants across a high-elevation landscape featuring plant density, snowpack, and nutrient gradients. Percent colonization by both AMF and DSE varied significantly among plant species, and DSE colonized forbs and grasses more than sedges. AMF were more abundant in roots at lower elevation areas with lower snowpack and lower phosphorus and nitrogen content, suggesting increased hyphal recruitment by plants to aid in nutrient uptake. DSE colonization was highest in areas with less snowpack and higher inorganic nitrogen levels, suggesting an important role for these fungi in mineralizing organic nitrogen. Both of these groups of fungi are likely to be important for plant fitness and establishment in areas limited by phosphorus and nitrogen. (C) 2018 Elsevier Ltd and British Mycological Society. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据