Associations between arbuscular mycorrhizal fungi and Sporobolus wrightii in riparian habitats in arid South-western North America

Linda J. Kennedy, Ronald L. Tiller, Jean C. Stutz

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

Seasonal dynamics of arbuscular mycorrhizal (AM) colonization of Sporobolus wrightii and AM fungal communities were assessed at four riparian sites in south-east Arizona which represented upper terrace or lower floodplain habitats and perennial or intermittent river reaches. Colonization was coordinated with growth/reproductive stages of plants at three sites with higher levels from February to May when plants were primarily vegetative and lower levels in September and December during seed set and onset of dormancy. Fifteen species of AM fungi were associated with S. wrightii, including Glomus, Acaulospora, Paraglomus and Archaeospora species. Species richness ranged from 9 to 13 AM fungal species per site.

Original languageEnglish (US)
Pages (from-to)459-475
Number of pages17
JournalJournal of Arid Environments
Volume50
Issue number3
DOIs
StatePublished - Mar 2002

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Keywords

  • Arbuscular mycorrhizae
  • Big sacaton
  • Grasses
  • Phenology
  • Riparian ecosystems
  • Semi-arid grasslands

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Earth-Surface Processes

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