The influence of dissolved organic carbon on the microbial community associated with tetraselmis striata for bio-diesel production

Sae Hee Kim, Jin Ho Kim, Seung Ho Baek, Joo Hwan Kim, Penelope A. Ajani, Bum Soo Park, Myung Soo Han

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The green alga Tetraselmis striata is regarded as a suitable candidate microalga for bio-diesel production. Recently, T. striata was cultured near Yeonghueung Island, Korea, in a "marine culturing field"; however, its environmental impacts are not yet studied. We estimated the amount of dissolved organic carbon (DOC) released from T. striata cultivation in the marine culturing field, and we investigated the changes in bacterial composition. Then, we designed and installed a mesocosm for further understanding. From the mesocosm results, the DOC released from the cultivation of T. striata led to changes in bacterial communities, disturbance of the microbial food web structure, rapid depletion of nutrients, and a decrease in dissolved oxygen (DO) and pH. Our novel work demonstrates that large amounts of DOC secreted by large-scale microalgal cultures such as that of T. striata can potentially have a significant impact on the structure and function of the surrounding microbial ecosystem.

Original languageEnglish
Article number3601
JournalApplied Sciences (Switzerland)
Volume10
Issue number10
DOIs
StatePublished - 2020 May 1

Keywords

  • Bacterial community
  • DOC
  • Food web structure
  • Mesocosm
  • Microbial disturbance
  • Tetraselmis

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