Isolation and characterization of a high-growth-rate strain in Pyropia yezoensis induced by ethyl methane sulfonate

Lee, Hak-Jyung; Choi, Jong‐il

doi:10.1007/s10811-018-1426-1

Cited by 23 publications

(14 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the case of mutation, identification of key proteins is the primary step for the production and/or isolation of stress-tolerant strains of laver. Experimental mutagenesis aims to produce cultivated laver strains capable of efficient growth with resistance to environmental stress factors and has been induced by chemical (ethyl methane sulfonate exposure) [181] or physical (gamma irradiation) treatments [182].…”

Section: Future Issues: Identifying the Health-promoting Properties Omentioning

confidence: 99%

“…P. yezoensis -Investigation on the pathogen-responsive proteins elucidating the mechanisms of responses against the infection [179] Identification of key functional protein P. yezoensis -Identification of major protein [Pyropia yezoensis aldehyde dehydognease (PyALDH)] which contributes to the resistance of laver against oxidative stress [180] Mutation of laver strain P. yezoensis -Induction of high-growth-rate mutation by the exposure to ethyl methane sulfonate -Comparative analysis for the proteome of mutated strain with wild-type strain with the perspective to the enhanced growth [181] P. yezoensis -Induction of thermo-tolerance mutation by the exposure to gamma-irradiation -Isolation of protein from thermo-tolerant mutant which contributes to the resistance against elevated temperature [182,191] P. dioica -Differences in composition of major lipid molecular species according to the life cycle stages between the blade and conchocelis [185] Metabolome Metabolomic variations P. haitanensis -Changes in the nutrient composition according to the harvest time [186] P. yezoensis -Changes in the nutrient composition which can determine the taste of laver by the food processing steps not only for seasoning but also washing, cutting, and roasting [187] Metabolite profile P. pseudolinearis -Distinctive characteristics of metabolites among species of edible seaweeds (brown, red, and green algae) and sorbitol as the major sugar metabolite in laver [188]…”

Section: Mechanism Of Infection Resistancementioning

confidence: 99%

See 1 more Smart Citation

Health Functionality and Quality Control of Laver (Porphyra, Pyropia): Current Issues and Future Perspectives as an Edible Seaweed

Cho

Rhee

2019

Marine Drugs

View full text Add to dashboard Cite

The growing interest in laver as a food product and as a source of substances beneficial to health has led to global consumer demand for laver produced in a limited area of northeastern Asia. Here we review research into the benefits of laver consumption and discuss future perspectives on the improvement of laver product quality. Variation in nutritional/functional values among product types (raw and processed (dried, roasted, or seasoned) laver) makes product-specific nutritional analysis a prerequisite for accurate prediction of health benefits. The effects of drying, roasting, and seasoning on the contents of both beneficial and harmful substances highlight the importance of managing laver processing conditions. Most research into health benefits has focused on substances present at high concentrations in laver (porphyran, Vitamin B 12 , taurine), with assessment of the expected effects of laver consumption. Mitigation of chemical/microbiological risks and the adoption of novel technologies to exploit under-reported biochemical characteristics of lavers are suggested as key strategies for the further improvement of laver product quality. Comprehensive analysis of the literature regarding laver as a food product and as a source of biomedical compounds highlights the possibilities and challenges for application of laver products.

show abstract

Section: Future Issues: Identifying the Health-promoting Properties Omentioning

confidence: 99%

Section: Mechanism Of Infection Resistancementioning

confidence: 99%

Health Functionality and Quality Control of Laver (Porphyra, Pyropia): Current Issues and Future Perspectives as an Edible Seaweed

Cho

Rhee

2019

Marine Drugs

View full text Add to dashboard Cite

show abstract

“…The goal of breeding Pyropia is to develop fast-growing, temperature-tolerant cultivars which are resistant to diseases and are also rich in highly desirable secondary metabolites (e.g., antioxidants, amino acids, vitamins, etc.). Three methods are used for Pyropia breeding; selection (Park and Hwang 2014), hybridization (Kim 2001), and mutation through mutagen induction (Lee and Choi 2018) or radiation treatment (Lee et al 2019). Park and Hwang (2014) isolated the P. yezoensis-AP1 variety, which was resistant to the pathogen, Pythium porphyrae that caused red rot disease in cultivation.…”

Section: Processing Industrymentioning

confidence: 99%

Seaweed cultivation and utilization of Korea

Hwang¹,

Park²

2020

ALGAE

View full text Add to dashboard Cite

Tribute to This paper is dedicated to the memory of Professor Chul Hyun Sohn (1943~2019) Mariculture is regarded as the only option to supply the increasing demands for seaweeds as human food, feeds, fodder, and phycolloids in a sustainable manner. Technologies for culturing a range of seaweed species have been developed successively in Korea since the 1970s. In 2017, Korean marine farms produced 1,761,526 t of seaweed. The key focus of the industry is on the production of Pyropia (523,648 t), Undaria (622,613 t), and Saccharina (542,285 t). Pyropia is economically the most important species in Korea, accounting for up to 68% of total production value. As the top exporter of Pyropia in the world, Korea exported up to US $525 million of Pyropia products to 110 countries in 2018. Other economically important genera include Sargassum, Ulva, Capsosiphon, Codium, and Gracilariopsis, all of which are used for food, and Gelidium, Pachymeniopsis, and Ecklonia which are used as raw material for phycocolloid extraction. Significant work has gone into developing more productive strains of key seaweed species, and in 2012 the Korean government began to certify seaweed varieties. To date, 19 seaweed cultivars have been registered including 13 Pyropia, 5 Undaria, and 1 Saccharina. The industry is now seeking not only to increase productivity but also to add value through processing. Convenience foods and snacks have been developed that target health-conscious consumers and utilize the nutritional properties of seaweeds. The industry is also seeking to promote the sustainability of seaweed farming. One seaweed company in Korea obtained the world's first ASC-MSC (Aquaculture Stewardship Council-Marine Stewardship Council) certification in 2019 and more are expected to follow their lead. With continued research support, the Korean seaweed industry plans to continue to expand to meet new market demands at a sustainable pace.

show abstract

“…There are three basic methods: selection, hybridisation and mutation. Examples of the success of these methods include a selected cultivar that is hypersensitive against pathogens (Park & Hwang 2014), hybrid cultivars derived from crossing P. dentata (Kim 2001), and mutated cultivars obtained by either mutagen induction (Lee & Choi 2018) or by radiation treatment . The precondition for all three methods is the establishment of pure cell lines.…”

Section: Introductionmentioning

confidence: 99%

Seaweed breeding programs and progress in eastern Asian countries

et al. 2019

View full text Add to dashboard Cite

The use of seaweeds as human food in eastern Asian countries has a long history, stretching back over a thousand years. However, it was not until the late 1940s that cultivation of seaweeds in near-shore coastal areas began. Due to their location, the Korean peninsula, the Japanese islands and the Chinese coasts share a similar seaweed flora in their coastal waters, and it is not surprising that seaweed species chosen for cultivation, methods of farming and post-harvest processing in these countries have a lot in common. In 2016, the total seaweed production in these three countries reached 16,218,406 t, approximately 53.8% of global seaweed production (FAO). In the course of seaweed farming development in eastern Asia, the development and use of seaweed cultivars have contributed significantly to the seaweed farming industry in terms of improving both the biomass yield and the quality of the food products produced. In this article, the recent development of cultivar-related research and applications practised in Korea, Japan and China are reviewed with particular reference to the key commercial species: Saccharina japonica, Pyropia spp., Undaria spp., Cladosiphon okamurarus, and Nemacystus decipiens. In the past 21 years, 47 certified seaweed cultivars have been used in commercial cultivation in these countries. While much of the development effort has focused on increasing yields, a current emphasis in cultivar breeding programs is to increase the quality of farmed seaweed products. More recently, molecular analyses have been integrated into these programs and have become indispensable tools in the breeding process.

show abstract

Isolation and characterization of a high-growth-rate strain in Pyropia yezoensis induced by ethyl methane sulfonate

Cited by 23 publications

References 44 publications

Health Functionality and Quality Control of Laver (Porphyra, Pyropia): Current Issues and Future Perspectives as an Edible Seaweed

Health Functionality and Quality Control of Laver (Porphyra, Pyropia): Current Issues and Future Perspectives as an Edible Seaweed

Seaweed cultivation and utilization of Korea

Seaweed breeding programs and progress in eastern Asian countries

Contact Info

Product

Resources

About