Journal of Microbiology and Biotechnology

  • 제34권10호
  • /
  • Pages.2132-2141
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  • 2024
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  • 1017-7825(pISSN)
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  • 1738-8872(eISSN)
한국미생물·생명공학회 (The Korean Society for Microbiology and Biotechnology)
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Characteristics of Recombinant Chlamydomonas reinhardtii Expressing Putative Germin-Like Protein from Neopyropia yezoensis

  • Jiae Kim (Department of Biotechnology and Bioengineering, Chonnam National University) ;
  • Jong-il Choi (Department of Biotechnology and Bioengineering, Chonnam National University)
  • 투고 : 2024.07.29
  • 심사 : 2024.08.05
  • 발행 : 2024.10.28
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초록

Since microalgae face various environmental stresses for the high production of biofuels, multiple studies have been performed to determine if microalgae are resistant to these various stresses. In this study, the viability of cells under various abiotic stresses was investigated by introducing a putative germin-like protein (GLP) from Neopyropia yezoensis, which was known to be related in the resistance to abiotic stresses. The expression of GLP in Chlamydomonas reinhardtii allowed cells to grow better in various abiotic stress environments. In nitrogen starvation conditions, recombinant cells accumulated the lipid droplet 1.46-fold more than wild-type cells and responded more rapidly to form palmelloid forms. Under high-temperature, hydrogen peroxide conditions and saline stress, the survival rate was increased 3.5 times, 2.19 times, and 3.19 times in recombinant C. reinhardtii with GLP, respectively. The expression level of genes related to pathways in response to various stresses increased 2-fold more under those conditions. This result will be useful for the development of microalgae that can grow better and produce more biofuels under different stress conditions.

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과제정보

The work was funded by the Chonnam Natinal University Supporting Program and was supported by "Regional Innovation Strategy (RIS)" through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (MOE) (2021RIS-002).

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