Isolation and characterization of actinobacteria from Yalujiang coastal wetland, North China

Jicheng Yu, Liu Zhang, Qiu Liu, Xiaohui Qi, Ying Ji, Beom Seok Kim

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


Objective: To evaluate various types of samples from the different marine environments as sources of actinomycetes from the Yalujiang coastal wetland, North China, and to screen their antimicrobial properties. Further, the identified actinomycetes were characterized based on morphological, biochemical, and physiological characteristics. Methods: Eight different production media were used to isolate actinomycetes from different stations of marine soil sediments in Yalujiang coastal wetland and the genotypic positions were established by 16S rDNA. Results: A total of 172 actinomycetal isolates were obtained from 13 samples using five media. The most effective culture media in the isolation of actinobacteria were Gause's Synthetic agar and Starch-casein agar. Among 172 isolates, 46 isolates (26.74%) showed antibacterial activity, 70.93% belonged to the genus Streptomyces, others were Micromonospora spp. and Rhodococcus spp. Out of the 46 isolates, two cultures were further supported by morphological characterization analysis. Conclusions: This is the first report about actinomycetes isolated from Yalujiang coastal wetland and it seems that the promising isolates from the unusual/unexplored wetland may prove to be an important step in the development of microbial natural product research.

Original languageEnglish
Pages (from-to)555-560
Number of pages6
JournalAsian Pacific Journal of Tropical Biomedicine
Issue number7
Publication statusPublished - 2015

Bibliographical note

Funding Information:
This research was financially funded by the National Natural Science Foundation of China (No. 31270057, No. 21276047 and No. 31070005), joint research projects supported by the National Natural Science Foundation of China and Korea National Research Foundation (No. 31311140255 and No. 2013K2A2A2000535), the Fundamental Research Funds for the Central Universities (DC201501020201).

Publisher Copyright:
© 2015 Hainan Medical University.


  • 16S rRNA
  • Actinomycetes
  • Antimicrobial activity
  • Yalujiang coastal wetland

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology (miscellaneous)


Dive into the research topics of 'Isolation and characterization of actinobacteria from Yalujiang coastal wetland, North China'. Together they form a unique fingerprint.

Cite this