A revaluation of algal diseases in Korean Pyropia (Porphyra) sea farms and their economic impact

Kim, Gwang Hoon; Moon, Kyoung-Hyoun; Kim, Je-Yoon; Shim, Junbo; Klochkova, Tatyana A.

doi:10.4490/algae.2014.29.4.249

Cited by 96 publications

(106 citation statements)

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“…Pyropia cultivation losses amount to over US $10 million annually from different diseases (Gachon et al 2010, Blouin et al 2011, Kim et al 2014. Diseases like greenspot disease and Olpidiopsis blight as well as red-rot disease, result in a great decrease in productivity, yield and crop value (Kawamura et al 2005, Klochkova et al 2012, 2016b, Kim et al 2014.…”

Section: Introductionmentioning

confidence: 99%

“…30 well investigated in aquacultural settings (e.g., Park et al 2000, Kawamura et al 2005, Kim et al 2014. A few studies have explored the host-range of Pythium in marine algae (e.g., Klochkova et al 2016a) and generally indicate that they can have wide host ranges.…”

Section: Introductionmentioning

confidence: 99%

“…Diseases like greenspot disease and Olpidiopsis blight as well as red-rot disease, result in a great decrease in productivity, yield and crop value (Kawamura et al 2005, Klochkova et al 2012, 2016b, Kim et al 2014. With increasing farming intensity and increasing temperatures, caused by global warming, disease severity and occurrence is also expected to increase (Ding andMa 2005, Gachon et al 2010).…”

Section: Introductionmentioning

confidence: 99%

“…The red alga Pyropia is the most consumed alga in the world, both for food and in the biomedical industry (e.g., porphyran, pycobilliproteins) (Gachon et al 2010). In 2013, Pyropia made up about 1.8 million tons which is about 8% of the total global seaweed production, with values of US $1.2 billion (FAO FishStat et al 2016).Pyropia cultivation losses amount to over US $10 million annually from different diseases (Gachon et al 2010, Blouin et al 2011, Kim et al 2014. Diseases like greenspot disease and Olpidiopsis blight as well as red-rot disease, result in a great decrease in productivity, yield and crop value (Kawamura et al 2005, Klochkova et al 2012, 2016b, Kim et al 2014.…”

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confidence: 99%

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Infection and cox2 sequence of Pythium chondricola (Oomycetes) causing red rot disease in Pyropia yezoensis (Rhodophyta) in Korea

Lee

Jee

Son

et al. 2017

ALGAE

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Geographic distributions of pathogens are affected by dynamic processes involving host susceptibility, availability and abundance. An oomycete, Pythium porphyrae, is the causative agent of red rot disease, which plagues Pyropia farms in Korea and Japan almost every year and causes serious economic damage. We isolated an oomycete pathogen infecting Pyropia plicata from a natural population in Wellington, New Zealand. The pathogen was identified as Pythium porphyrae using cytochrome oxidase subunit 1 and internal transcribed spacer of the rDNA cistron molecular markers. Susceptibility test showed that this Pythium from New Zealand was able to infect several different species and genera of Bangiales including Pyropia but is not able to infect their sporophytic (conchocelis) phases. The sequences of the isolated New Zealand strain were also identical to Pythium chondricola from Korea and the type strain from the Netherlands. Genetic species delimitation analyses found no support for separating P. porphyrae from P. chondricola, nor do we find morphological characters to distinguish them. We propose that Pythium chondricola be placed in synonymy with P. porphyrae. It appears that the pathogen of Pyropia, both in aquaculture in the northern hemisphere and in natural populations in the southern hemisphere is one species.Key Words: Bangia; Bangiales; DNA barcoding; host specificity; Porphyra; Pythium chondricola; Rhodophyta; species delimitation; synonymization; taxonomy INTRODUCTIONAquaculture of marine algae is an important industry, especially in Asia. The production of seaweeds more than doubled between 2000 and 2012 (Food and Agriculture Organization of the United Nations 2014). The red alga Pyropia is the most consumed alga in the world, both for food and in the biomedical industry (e.g., porphyran, pycobilliproteins) (Gachon et al. 2010). In 2013, Pyropia made up about 1.8 million tons which is about 8% of the total global seaweed production, with values of US $1.2 billion (FAO FishStat et al. 2016).Pyropia cultivation losses amount to over US $10 million annually from different diseases (Gachon et al. 2010, Blouin et al. 2011, Kim et al. 2014. Diseases like greenspot disease and Olpidiopsis blight as well as red-rot disease, result in a great decrease in productivity, yield and crop value (Kawamura et al. 2005, Klochkova et al. 2012, 2016b, Kim et al. 2014. With increasing farming intensity and increasing temperatures, caused by global warming, disease severity and occurrence is also expected to increase (Ding and Ma 2005, Gachon et al. 2010).Received January 17, 2017, Accepted February 25, 2017 *Corresponding Author E-mail: joe.zuccarello@vuw.ac.nz Tel: This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. 30 well investigated in aquacultural settings (e.g., Park ...

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Infection and cox2 sequence of Pythium chondricola (Oomycetes) causing red rot disease in Pyropia yezoensis (Rhodophyta) in Korea

Lee

Jee

Son

et al. 2017

ALGAE

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“…Ulva spp. ), while most Korean and Japanese farmers use the more efficient pH control method by spraying organic acids onto the nets (Pereira and Yarish 2010;Kim et al 2014b) which is, however, more costly. The uncontrolled fouling organisms reduce the quality of the product.…”

Section: Red Seaweedsmentioning

confidence: 99%

Offshore and Multi-Use Aquaculture with Extractive Species: Seaweeds and Bivalves

Buck

Nevejan

Wille

et al. 2017

Aquaculture Perspective of Multi-Use Sites in the Open Ocean

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Aquaculture of extractive species, such as bivalves and macroalgae, already supplies a large amount of the production consumed worldwide, and further production is steadily increasing. Moving aquaculture operations off the coast as well as combining various uses at one site, commonly called multi-use aquaculture, is still in its infancy. Various projects worldwide, pioneered in Germany and later accompanied by other European projects, such as in Belgium, The Netherlands, Norway, as well as other international projects in the Republic of Korea and the USA, to name a few, started to invest in robust technologies and to investigate in system design needed that species can be farmed to market size in high energy environments. There are a few running enterprises with extractive species offshore, however, multi-use scenarios as well as offshore IMTA concepts are still on project scale. This will change soon as the demand is dramatically increasing and space is limited.

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Occurrence and Distribution of Fungi in Saline Environments

Bunbury-Blanchette

Walker

2019

Soil Biology

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A revaluation of algal diseases in Korean Pyropia (Porphyra) sea farms and their economic impact

Cited by 96 publications

References 37 publications

Infection and cox2 sequence of Pythium chondricola (Oomycetes) causing red rot disease in Pyropia yezoensis (Rhodophyta) in Korea

Infection and cox2 sequence of Pythium chondricola (Oomycetes) causing red rot disease in Pyropia yezoensis (Rhodophyta) in Korea

Offshore and Multi-Use Aquaculture with Extractive Species: Seaweeds and Bivalves

Occurrence and Distribution of Fungi in Saline Environments

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