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      Proteases from the marine bacteria in the genus Pseudoalteromonas: diversity, characteristics, ecological roles, and application potentials

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          Abstract

          Bacterial strains of the genus Pseudoalteromonas, which includes 48 species, are widely distributed in various ocean environments. Many strains are often abundant and the highest protease producer among marine culturable protease-secreting bacteria, suggesting their important role in marine organic nitrogen degradation and cycling. The extracellular proteases of Pseudoalteromonas are diverse, including serine proteases, metalloproteases, and cystine proteases. Pseudoalteromonas proteases have unique properties, such as cold adaptation, salt tolerance, distinct substrate specificity, and catalytic mechanism. They play important ecological roles in marine organic nitrogen degradation and in the interactions of Pseudoalteromonas with other organisms. Some Pseudoalteromonas proteases have shown promising application potentials in bioactive peptide preparation and meat processing. In this review, advances in our knowledge of Pseudoalteromonas proteases are introduced, with a focus on diversity, characters, ecological significance, and application potentials.

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          Author and article information

          Journal
          MLST
          Marine Life Science & Technology
          Springer (China )
          2096-6490
          2662-1746
          01 November 2020
          28 August 2020
          : 2
          : 4
          : 309-323
          Affiliations
          1State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China
          2College of Marine Life Sciences and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266003, China
          3Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266373, China
          Author notes
          *Corresponding authors: Peng Wang, E-mail: wangpeng3331@ 123456ouc.edu.cn ; Yu-Zhong Zhang, zhangyz@ 123456sdu.edu.cn
          Article
          s42995-020-00058-8
          10.1007/s42995-020-00058-8
          © 2020 Ocean University of China
          Product
          Self URI (journal-page): https://www.springer.com/journal/42995
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