한국수산과학회

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  • 0374-8111
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  • 2287-8815

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kfas, vol. 54, no. 6, pp.982-988, December, 2021
DOI. https://doi.org/10.5657/KFAS.2021.0982

Development of Pyropia yezoensis Mutant with Improved Amino Acid
Content Using Gamma Rays
방사선 돌연변이 육종기술을 통한 고 아미노산 함유 김(Pyropia yezoensis)
돌연변이 개발

이학증*
국립수산과학원 수산종자육종연구소

Gamma irradiation is one of the simple methods used to induce mutagenesis. Therefore, it is widely used for the development
of breeding lineages of plants and algae. In this study, it was developed a new variety of Pyropia yezoensis
using gamma irradiation. It was applied a dose of 1 kGy and named the developed mutant Py1k. The blade with width
of the mutant was narrower and the blade length was longer than those of the wild type. To further investigate the
mutant, it was analyzed the nutrient composition and antioxidant activity. In comparison to those in the wild type, it
was found a higher amino acid composition and marginally increased antioxidant activity in Py1k. Based on these
results, it was suggests that our protocol can be utilized to develop Pyropia species with improved nutritional quality
through gamma irradiation.

Keyword : Pyropia yezoensis, Irradiation, Mutant, Amino acid, Antioxidant

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