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Porträttbild på Edith Hammer. Foto.

Edith Hammer

Universitetslektor

Porträttbild på Edith Hammer. Foto.

Fatty acid 16:1ω5 as a proxy for arbuscular mycorrhizal fungal biomass : current challenges and ways forward

Författare

  • Ylva Lekberg
  • Erland Bååth
  • Åsa Frostegård
  • Edith Hammer
  • Katarina Hedlund
  • Jan Jansa
  • Christina Kaiser
  • Philip W. Ramsey
  • Tomáš Řezanka
  • Johannes Rousk
  • Håkan Wallander
  • Monika Welc
  • Pål Axel Olsson
Visa allt

Summary, in English

Fatty acid biomarkers have emerged as a useful tool to quantify biomass of various microbial groups. Here we focus on the frequent use of the fatty acid 16:1ω5 as a biomarker for arbuscular mycorrhizal (AM) fungi in soils. We highlight some issues with current applications of this method and use several examples from the literature to show that the phospholipid fatty acid (PLFA) 16:1ω5 can occur in high concentrations in soils where actively growing AM fungi are absent. Unless the study includes a control where the contribution of other microbes can be estimated, we advocate for the use of the neutral lipid fatty acid (NLFA) 16:1ω5. This biomarker has higher specificity, is more responsive to shifts in AM fungal biomass, and quantification can be conducted along with PLFA analysis without doubling analytical efforts. We conclude by contrasting various methods used to measure AM fungal biomass in soil and highlight future research needs to optimize fatty acid analyses.

Avdelning/ar

  • Mikrobiologisk ekologi
  • MEMEG
  • BECC: Biodiversity and Ecosystem services in a Changing Climate
  • Centrum för miljö- och klimatvetenskap (CEC)
  • Markgruppen
  • Biodiversitet
  • Mikrobiell biogeokemi i Lund
  • Växtbiologi

Publiceringsår

2022-11

Språk

Engelska

Sidor

835-842

Publikation/Tidskrift/Serie

Biology and Fertility of Soils

Volym

58

Issue

8

Dokumenttyp

Artikel i tidskrift

Förlag

Springer

Ämne

  • Ecology

Nyckelord

  • Arbuscular mycorrhizal fungi
  • Biomass
  • Gram-negative bacteria
  • NLFA 16:1ω5
  • PLFA 16:1ω5

Status

Published

Forskningsgrupp

  • Microbial Ecology
  • Soil Ecology
  • Microbial Biogeochemistry in Lund
  • Plant Biology

ISBN/ISSN/Övrigt

  • ISSN: 0178-2762