Tripartite mutualisms as models for understanding plant–microbial interactions

Michelle E. Afkhami, Brianna K. Almeida, Damian J. Hernandez, Kasey N. Kiesewetter, Daniel P. Revillini

Research output: Contribution to journalReview articlepeer-review

4 Scopus citations

Abstract

All plants host diverse microbial assemblages that shape plant health, productivity, and function. While some microbial effects are attributable to particular symbionts, interactions among plant-associated microbes can nonadditively affect plant fitness and traits in ways that cannot be predicted from pairwise interactions. Recent research into tripartite plant–microbe mutualisms has provided crucial insight into this nonadditivity and the mechanisms underlying plant interactions with multiple microbes. Here, we discuss how interactions among microbial mutualists affect plant performance, highlight consequences of biotic and abiotic context-dependency for nonadditive outcomes, and summarize burgeoning efforts to determine the molecular bases of how plants regulate establishment, resource exchange, and maintenance of tripartite interactions. We conclude with four goals for future tripartite studies that will advance our overall understanding of complex plant–microbial interactions.

Original languageEnglish (US)
Pages (from-to)28-36
Number of pages9
JournalCurrent Opinion in Plant Biology
Volume56
DOIs
StatePublished - Aug 2020

ASJC Scopus subject areas

  • Plant Science

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