Nitrogen availability and colonization by mycorrhizal fungi correlate with nitrogen isotope patterns in plants

EA Hobbie, JV Colpaert - New Phytologist, 2003 - Wiley Online Library
Nitrogen isotope (δ 15 N) patterns in plants may provide insight into plant N dynamics. Here,
two analytical models of N‐isotope cycling in plants and mycorrhizal fungi were tested, as …

Correlations between foliar δ15N and nitrogen concentrations may indicate plant-mycorrhizal interactions

EA Hobbie, SA Macko, M Williams - Oecologia, 2000 - Springer
Nitrogen isotope measurements may provide insights into changing interactions among
plants, mycorrhizal fungi, and soil processes across environmental gradients. Here, we …

Nitrogen isotopes link mycorrhizal fungi and plants to nitrogen dynamics

EA Hobbie, P Högberg - New phytologist, 2012 - Wiley Online Library
In this review, we synthesize field and culture studies of the 15N/14N (expressed as δ15 N)
of autotrophic plants, mycoheterotrophic plants, parasitic plants, soil, and mycorrhizal fungi …

Natural Abundance of 15N in Nitrogen-Limited Forests and Tundra Can Estimate Nitrogen Cycling Through Mycorrhizal Fungi: A Review

EA Hobbie, JE Hobbie - Ecosystems, 2008 - Springer
The hyphae of ectomycorrhizal and ericoid mycorrhizal fungi proliferate in nitrogen (N)-
limited forests and tundra where the availability of inorganic N is low; under these conditions …

Foliar and fungal 15 N:14 N ratios reflect development of mycorrhizae and nitrogen supply during primary succession: testing analytical models

EA Hobbie, A Jumpponen, J Trappe - Oecologia, 2005 - Springer
Abstract Nitrogen isotopes (15 N/14 N ratios, expressed as δ 15 N values) are useful
markers of the mycorrhizal role in plant nitrogen supply because discrimination against 15 N …

Nitrogen isotope fractionation during nitrogen uptake by ectomycorrhizal and non-mycorrhizal Pinus sylvestris

P Högberg, MN Högberg, ME Quist, ALF Ekblad… - The New …, 1999 - cambridge.org
An experiment was performed to find out whether ectomycorrhizal (ECM) fungi alter the
nitrogen (N) isotope composition, δ15N, of N during the transport of N from the soil through …

Global patterns of foliar nitrogen isotopes and their relationships with climate, mycorrhizal fungi, foliar nutrient concentrations, and nitrogen availability

JM Craine, AJ Elmore, MPM Aidar… - New …, 2009 - Wiley Online Library
Ratios of nitrogen (N) isotopes in leaves could elucidate underlying patterns of N cycling
across ecological gradients. To better understand global‐scale patterns of N cycling, we …

Insights into nitrogen and carbon dynamics of ectomycorrhizal and saprotrophic fungi from isotopic evidence

EA Hobbie, SA Macko, HH Shugart - Oecologia, 1999 - Springer
The successful use of natural abundances of carbon (C) and nitrogen (N) isotopes in the
study of ecosystem dynamics suggests that isotopic measurements could yield new insights …

Recovery of ectomycorrhiza after 'nitrogen saturation'of a conifer forest

P Högberg, C Johannisson, S Yarwood… - New …, 2011 - Wiley Online Library
Trees reduce their carbon (C) allocation to roots and mycorrhizal fungi in response to high
nitrogen (N) additions, which should reduce the N retention capacity of forests. The time …

Vascular plant 15N natural abundance in heath and forest tundra ecosystems is closely correlated with presence and type of mycorrhizal fungi in roots

A Michelsen, C Quarmby, D Sleep, S Jonasson - Oecologia, 1998 - Springer
In this study we show that the natural abundance of the nitrogen isotope 15, δ 15 N, of plants
in heath tundra and at the tundra-forest ecocline is closely correlated with the presence and …