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Isolation of Viable Multicellular Glands from Tissue of the Carnivorous Plant, Nepenthes
Published on: December 22, 2013
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Linking the development and functioning of a carnivorous pitcher plant's microbial digestive community
1Department of Integrative Biology, University of California Berkeley, Berkeley, CA, USA.
The ISME Journal
|June 24, 2017
Summary
Microbial communities in pitcher plants show predictable succession, impacting plant nutrient uptake. This research links microbial community development to ecosystem functioning in a natural system.
Area of Science:
- Ecology
- Microbial Ecology
- Ecosystem Science
Background:
- Ecosystem development theory links community composition to ecosystem functioning.
- Testing this theory in natural systems is challenging due to a lack of tractable model systems.
- Carnivorous pitcher plants host complex microbial communities that can serve as a model system.
Purpose of the Study:
- To test hypotheses on how host age-driven microbial community development influences pitcher plant ecosystem functioning.
- To investigate the relationship between microbial succession and digestive processes in pitcher plants.
- To extend succession theory to host-associated microbial communities.
Main Methods:
- Monitoring yearlong microbial community development in independent digestive communities of pitcher plants.
- Analyzing bacterial diversity, composition, and metabolic substrate use over time.
- Quantifying prey decomposition rates and host leaf nitrogen uptake efficiency.
Main Results:
- Observed mid-successional peaks in bacterial diversity and metabolic substrate use.
- Detected predictable and parallel successional trajectories in microbial communities.
- Found that bacterial composition, biomass, and diversity positively influenced prey decomposition and nitrogen uptake.
Conclusions:
- Microbial community succession in pitcher plants mirrors theoretical predictions.
- Microbial community dynamics significantly impact ecosystem functioning, specifically prey decomposition and nutrient uptake.
- Succession theory can be extended to understand host-associated microbial communities and their ecological roles.
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