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Integrating microbes into pollination.

Nevin P Cullen1, Andrea M Fetters1, Tia-Lynn Ashman1

  • 1Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA.

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|November 28, 2020
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Summary
This summary is machine-generated.

Flower microbes, including fungi, bacteria, and viruses, impact pollination by influencing pollinator attraction and visit efficacy. Further research is needed to understand their effects on pollen performance and viability.

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Area of Science:

  • Ecology
  • Microbiology
  • Plant Sciences

Background:

  • Microbes inhabit flowers and are hypothesized to influence pollination.
  • Current research primarily focuses on nectar yeasts and bumblebees.

Purpose of the Study:

  • To evaluate the evidence for microbial impacts on pollination at each stage.
  • To identify knowledge gaps in microbial effects on pollination.

Main Methods:

  • Literature review and synthesis of existing studies on flower-associated microbes and pollination.
  • Analysis of evidence for microbial influence on pollinator attraction, visit efficacy, and pollen performance.

Main Results:

  • Convincing evidence supports microbial influence on pollinator attraction, particularly nectar yeasts in bumblebees.
  • The impact of microbes on pollinator visit efficacy is understudied, with variable outcomes suggesting effects on visit quality.
  • The role of pollen-transmitted microbes in pollen viability and tube growth remains largely unknown.

Conclusions:

  • Microbes significantly influence pollinator attraction and potentially visit efficacy.
  • Underappreciated microbial effects on pollen performance warrant further investigation.
  • Future research should expand taxonomic scope (microbes, pollinators, plants) and study processes comprehensively.