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Anammox bacterial abundance and biodiversity in greenhouse vegetable soil are influenced by high nitrate content

Pedosphere. 2020-06; 
Hongyi QIN;Huan DENG;Cheng HAN;Wenhui ZHONG
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摘要

The anaerobic ammonium oxidizing (anammox) process has been found to play an important role in terrestrial ecosystems in recent years. However, the diversity and abundance of anammox bacteria in nitrogen (N)-rich agricultural soils under high fertilizer greenhouse conditions are still unclear. Two greenhouse fields with different N fertilizer input levels were chosen, and their soil profiles were studied with molecular technologies, including quantitative polymerase chain reaction assay, a clone library, and phylogenetic analysis based on hzsB (encoding anammox hydrazine synthase β-subunit) gene. Molecular analyses suggested that anammox bacteria were at their highest density at 10–20 cm soil depth, and that... More

关键词

anammox pathway;community structure;fertilizer input level;greenhouse soil;hydrazine gene;nitrogen fertilizer;nitrogen pollution;soil degradation