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Archaeal communities perform an important role in maintaining microbial stability under long term continuous cropping
Zhuxiu Liu1, Junjie Liu2, Zhenhua Yu2
1Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China; University of Chinese Academy of Sciences, Beijing 100049, China.
The Science of the Total Environment
|June 6, 2022
Summary
Long-term soybean cropping enhances soil archaeal abundance and resistance, boosting yields. This study reveals archaea
Area of Science:
- Soil microbiology
- Agricultural science
- Archaea research
Background:
- Continuous soybean cropping can induce disease-suppressive soils.
- The role of archaea in soil sickness and crop yield under continuous cropping is unclear.
Purpose of the Study:
- Investigate changes in soil archaeal communities under different soybean cropping systems.
- Determine the contribution of archaea to soil resistance and soybean yield.
Main Methods:
- Real-time PCR and high-throughput sequencing to analyze archaeal communities.
- Microbial co-occurrence network analysis.
- Correlation and structural equation modeling (SEM) to assess relationships.
Main Results:
- Long-term continuous cropping (CC13) and crop rotation (CR5) increased archaeal abundance and altered community structure.
- CC13 exhibited a more resistant microbial community with lower pathogen abundance.
- Archaea significantly contributed to microbial resistance, which correlated positively with soybean yield.
Conclusions:
- A resistant microbial community, influenced by archaea, improves soybean yield by managing pathogens and soil nutrients.
- Managing soil microbial taxa is crucial for agricultural productivity in continuous soybean systems.
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