Chinese Black Truffle-Associated Bacterial Communities of Tuber indicum from Different Geographical Regions with Nitrogen Fixing Bioactivity
- Author: mycolabadmin
- 2019-11-05
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Summary
This research examined the bacterial communities living inside Chinese black truffles from different regions of China. The study revealed that specific bacteria consistently live within truffles regardless of location, suggesting they play important roles in truffle development. Some of these bacteria can fix nitrogen and make nutrients available to the truffle.
Impacts on everyday life:
– Helps understand how to better cultivate truffles for food production
– Provides insights into sustainable agriculture through beneficial plant-microbe relationships
– Could lead to improved truffle farming techniques and increased availability of truffles
– Demonstrates the importance of beneficial bacteria in food production
– May help develop new ways to grow truffles in different geographical regions
Background
Tuber indicum, known as Chinese black truffle, is endemic to Eastern Asia and mainly distributed in China. The microbial communities associated with truffle fruiting bodies play important roles during the truffle lifecycle, but the bacterial communities of T. indicum from different geographical regions have not been systematically studied.
Objective
To compare the bacterial communities of T. indicum from nine different geographical regions, describe the bacterial community structure of ectomycorrhizae, fruiting bodies and soil in the same region using high-throughput sequencing, and isolate cultural bacteria from fruiting bodies to identify potential bacterial partners with biological activity.
Results
Bradyrhizobium was identified as the dominant genus in fruiting bodies across all regions (2.66-47.66%). The bacterial communities varied significantly by geographical location and were influenced by soil characteristics. Different compartments (soil, ectomycorrhizae, fruiting bodies) showed distinct bacterial compositions. 60 bacterial colonies representing 26 strains were isolated, with 13 strains showing potential nitrogen-fixing activities.
Conclusion
The study provides comprehensive data on bacterial communities associated with T. indicum across different regions of China. Core bacteria like Bradyrhizobium appear to have co-evolved with truffles. The bacterial composition varies by geography and tissue compartment, with some isolated strains showing beneficial activities that may support truffle development.
- Published in:Frontiers in Microbiology,
- Study Type:Observational Study,
- Source: 10.3389/fmicb.2019.02515