ArticleAntonie van Leeuwenhoek2021
Diversity of protease-producing bacteria in the soils of the South Shetland Islands, Antarctica.
Article in Antonie van Leeuwenhoek, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 21 citations in OpenAlex.
- Mudflat halophilic microbiome: research progress in biotechnology and eco-environmental sustainability.World journal of microbiology & biotechnology · 2025Review
- Article
- Expression and characterization of Est2: a novel cold-adapted esterase from Antarctic bacterium defining the new esterase family XXII.Frontiers in microbiology · 2025Article
- Diversity of the protease-producing bacteria and their extracellular protease in the coastal mudflat of Jiaozhou Bay, China: in response to clam naturally growing and aquaculture.Frontiers in microbiology · 2023Article
- Spatial and temporal conversion of nitrogen usingFrontiers in microbiology · 2023Article
- Characterization of a Novel Esterase Est33 From an Antarctic Bacterium: A Representative of a New Esterase Family.Frontiers in microbiology · 2022Article
- Identification and Biochemical Characterization of a Novel Hormone-Sensitive Lipase Family Esterase Est19 from the Antarctic BacteriumBiomolecules · 2021Article
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Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
Abstract
Proteases secreted from bacteria into soil play a key role in the degradation of organic nitrogen, which is the first and, usually, the rate-limiting step of nitrogen cycling. However, the diversity of protease-producing bacteria and their excreted proteases in Antarctic soil have not yet been fully explored. Here we studied 20 soil samples from the South Shetland Islands, Antarctica and isolated 253 strains with protease activity. These protease-producing bacteria belonged to the phyla Bacteroidetes, Proteobacteria, Actinobacteria, Firmicutes, and Deinococcus-Thermus. Thhe predominant genera were Arthrobacter (14.9%), Chryseobacterium (14.5%), Flavobacterium (14.5%), and Pseudomonas (14.5%). Most of these bacteria secreted serine proteases and metalloproteases. There was quite a large distribution in activity as quantified by protease and inhibition assays. Only a few strains secreted aspartic and/or cysteine proteases. Together these data provided novel insight into the diversity and mechanism of organic nitrogen degradation in Antarctic soils by various proteases, which may have potential in new biotechnological applications.
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