Diversity and potential biogeochemical impacts of viruses in bulk and rhizosphere soils. (16th April 2020)

• Record Type: Journal Article
• Authors: Bi, Li; Yu, Dan‐Ting; Du, Shuai; Zhang, Li‐Mei; Zhang, Li‐Yu; Wu, Chuan‐Fa; Xiong, Chao; Han, Li‐Li; He, Ji‐Zheng
• Other Names: Liu Shuang‐Jiang guestEditor.; Wu Xiao‐Lei guestEditor.; Huang Wei guestEditor.; Zhang Yu‐Zhong guestEditor.; Wang Fengping guestEditor.
• Is Part Of: Environmental microbiology. Volume 23:Number 2(2021)
• Page Start: 588
• Page End: 599
• Publication Date: 2020-04-16
• Subjects: Microbial ecology -- Periodicals; Environmental Microbiology -- Periodicals; 579.17
• DOI: 10.1111/1462-2920.15010
• Languages: English
• ISSNs: 1462-2912

Abstract

Summary: Viruses can affect microbial dynamics, metabolism and biogeochemical cycles in aquatic ecosystems. However, viral diversity and functions in agricultural soils are poorly known, especially in the rhizosphere. We used virome analysis of eight rhizosphere and bulk soils to study viral diversity and potential biogeochemical impacts in an agro‐ecosystem. The order Caudovirales was the predominant viral type in agricultural soils, with Siphoviridae being the most abundant family. Phylogenetic analysis of the terminase large subunit of Caudovirales identified high viral diversity and three novel groups. Viral community composition differed significantly between bulk and rhizosphere soils. Soil pH was the main environmental driver of the viral community structure. Remarkably, abundant auxiliary carbohydrate‐active enzyme (CAZyme) genes were detected in viromes, including glycoside hydrolases, carbohydrate esterases and carbohydrate‐binding modules. These results demonstrate that virus‐encoded putative auxiliary metabolic genes or metabolic genes that may change bacterial metabolism and indirectly contribute to biogeochemical cycling, especially carbon cycling, in agricultural soil.