A1 Journal article (refereed)
Idiosyncratic responses to simulated herbivory by root fungal symbionts in a subarctic meadow (2021)

Kytöviita, M.-M., & Olofsson, J. (2021). Idiosyncratic responses to simulated herbivory by root fungal symbionts in a subarctic meadow. Arctic, Antarctic and Alpine Research, 53(1), 80-92. https://doi.org/10.1080/15230430.2021.1878738

JYU authors or editors

Publication details

All authors or editors: Kytöviita, Minna-Maarit; Olofsson, Johan

Journal or series: Arctic, Antarctic and Alpine Research

ISSN: 1523-0430

eISSN: 1938-4246

Publication year: 2021

Publication date: 02/01/2021

Volume: 53

Issue number: 1

Pages range: 80-92

Publisher: Taylor & Francis

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1080/15230430.2021.1878738

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/74636

Abstract

Plant-associated fungi have elementary roles in ecosystem productivity. There is little information on the interactions between arbuscular mycorrhizal (AM) fungal symbiosis, fine endophytic (FE) and dark septate endophytic (DSE) fungi, and their host plants in cold climate systems. In particular, the environmental filters potentially driving the relative abundance of these root symbionts remain unknown. We investigated the interlinkage of plant and belowground fungal responses to simulated herbivory (clipping, fertilization, and trampling) in a subarctic meadow system. AM and FE frequency in the two target plant roots, Potentilla crantzii and Saussurea alpina, was unaffected by simulated herbivory, highlighting the importance and resilience of arbuscule forming mycorrhizas in a range of environmental conditions. Fertilization and trampling increased DSE colonization in P. crantzii roots although generally P. crantzii performance was reduced in these plots. The idiosyncratic responses by DSE fungal frequency in the two host plants in our experiment indicate that the host plant identity has a pivotal role in the DSE fungus–plant outcome. DSE fungal frequency did not respond to environmental manipulations in a manner similar to arbuscular mycorrhizas, suggesting that they have a different role in plant ecology.

Keywords: plant ecology; mycorrhiza; endophytes; grass fields; pasture rearing; subarctic zone

Free keywords: Arbuscular mycorrhiza; dark septate endophytes; fine endophytes; grazing

Contributing organizations

Ministry reporting: Yes

VIRTA submission year: 2021

JUFO rating: 1