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Novel species of the oomycete Olpidiopsis potentially threaten European red algal cultivation


Badis, Y and Klochkova, TA and Strittmatter, M and Garvetto, A and Murua, P and Sanderson, JC and Kim, GH and Gachon, CMM, Novel species of the oomycete Olpidiopsis potentially threaten European red algal cultivation, Journal of Applied Phycology, 31, (2) pp. 1239-1250. ISSN 0921-8971 (2019) [Refereed Article]

Copyright Statement

Copyright Springer Nature B.V. 2018

DOI: doi:10.1007/s10811-018-1641-9


The rapid growth of marine macroalgal cultivation amplifies the potential impacts of seaweed diseases. Here, we combine microscopy and molecular analysis to describe two novel European species, Olpidiopsis palmariae and O. muelleri spp. nov., that infect the commercially important red algae Palmaria and Porphyra, respectively. A Scottish variety of Olpidiopsis porphyrae, a devastating pathogen of Pyropia previously thought to be restricted to Japanese seaweed farms, is also described as O. porphyrae var. scotiae. In the light of their destructiveness in Asian farms, together with the global expansion of algal cultivation and pertaining seed trade, Olpidiopsis pathogens should be treated as a serious threat to the sustainability of red algal aquaculture. Our findings call for the documentation of seaweed pathogens and the creation of an international biosecurity framework to limit their spread.

Item Details

Item Type:Refereed Article
Keywords:aquaculture, algal disease, algal parasite, barcoding, biosecurity, Olpidiopsis, oomycete, rhodophyte
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Fisheries sciences
Research Field:Aquaculture
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:Sanderson, JC (Dr Craig Sanderson)
ID Code:137672
Year Published:2019
Web of Science® Times Cited:7
Deposited By:Fisheries and Aquaculture
Deposited On:2020-02-26
Last Modified:2020-08-18

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