Results 161 to 170 of about 802 (185)
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Transactions of the British Mycological Society, 1984
Saprolegnia parasitica and Aphanomyces astaci are important Oomycete parasites of aquatic animals. The sensitivity of these two fungi to a range of fungicides was investigated and A. astaci was found to be significantly more susceptible to systemic anti-phycomycete agents.
D.J. Alderman, Jane L. Polglase
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Saprolegnia parasitica and Aphanomyces astaci are important Oomycete parasites of aquatic animals. The sensitivity of these two fungi to a range of fungicides was investigated and A. astaci was found to be significantly more susceptible to systemic anti-phycomycete agents.
D.J. Alderman, Jane L. Polglase
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Recent acute crayfish mortality reveals Aphanomyces astaci presence in Bosnia and Herzegovina
Journal of Invertebrate Pathology, 2017Although the introduction of the crayfish plague pathogen Aphanomyces astaci to Europe is responsible for substantial declines in native crayfish populations throughout the whole continent, its presence has never been officially confirmed in many European regions, including most of the Balkan Peninsula. We demonstrate that the recent crayfish mortality
Agata Mrugała +4 more
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Crayfish plague Aphanomyces astaci detected in redclaw crayfish, Cherax quadricarinatus in Taiwan
Journal of Invertebrate Pathology, 2016Between December 2013 and January 2014, five outbreaks of an unknown disease with moderate to high cumulative mortality were observed among the freshwater redclaw crayfish (Cherax quadricarinatus) populations at four crayfish farms in Miaoli and Changhua counties (northern Taiwan) and at one crayfish farm in Pingtung County (southern Taiwan ...
Chia-Yu, Hsieh +2 more
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Aphanomyces astaci pathogenicity under laboratory and field conditions
Journal of Fish Diseases, 1987Abstract. The high pathogenicity of Aphanomyces astaci to susceptible crayfish has often been mentioned but not well investigated in publications on crayfish plague. This paper presents a study of that pathogenicity and considers the relationships between size of zoospore challenge and challenge temperature, which results in the extremely complex ...
D. J. ALDERMAN +2 more
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Journal of Invertebrate Pathology, 1975
Abstract In the crayfish, Astacus astacus , susceptible to the crayfish plague fungus, penetration of the cuticle by the parasite occurred in the soft cuticle. The zoospore lysed the surface lipid layer, tore it away, and formed an infection peg (germ tube) that penetrated through the epicuticle. A septum was formed in the infection peg, and a hypha
Lars Nyhlén, Torgny Unestam
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Abstract In the crayfish, Astacus astacus , susceptible to the crayfish plague fungus, penetration of the cuticle by the parasite occurred in the soft cuticle. The zoospore lysed the surface lipid layer, tore it away, and formed an infection peg (germ tube) that penetrated through the epicuticle. A septum was formed in the infection peg, and a hypha
Lars Nyhlén, Torgny Unestam
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Studies on the Crayfish Plague Fungus Aphanomyces astaci
Physiologia Plantarum, 1966AbstractA mycelial suspension of the crayfish plague fungus, Aphanomyces astaci, was able to produce large numbers of zoospores, when transferred to redistilled water, at 20°C, even after storage for months at 2°C. Spore production was greater in redistilled water than in tap water and heavier under shake conditions than under stationary ones.
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Blood reactions in vitro in crayfish against a fungal parasite, Aphanomyces astaci
Journal of Invertebrate Pathology, 1972Abstract The immediate and subsequent reactions in crayfish blood upon making contact with hyphae of the crayfish plague fungus were observed in vitro. Blood cells agglomerated and clumped rapidly on the hyphae in streaming blood. Very brief contact by chance with a hypha, or with cell extensions from cells or a cell clump on the hypha, caused ...
Torgny Unestam, Jan-Erik Nylund
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Chemotaxis in Aphanomyces astaci, an arthropod-parasitic fungus
Journal of Invertebrate Pathology, 1984Lage Cerenius, Kenneth Söderhäll
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Prevalence of pathogen Aphanomyces astaci in freshwater crayfish populations in Croatia
2013Crayfish plague has been recently well studied throughout Europe. In Croatia crayfish plague has been sporadically mentioned in literature as a possible cause of crayfish mass mortalities, but none of the papers offer confident scientific proofs. Therefore, the aim of this study was to give the first official overview on Aphanomyces astaci prevalence ...
Maguire, Ivana +4 more
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The surveillance programme for Aphanomyces astaci in Norway 2017
2018Vrålstad, Trude +4 more
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