On two Metschnikowia yeast species producing hemocoelic infections in Daphnia magna and Artemia salina (Crustacea, Phyllopoda) from Romania

Codreanu, Radu; Codreanu-Bӑlcescu, Doina

doi:10.1016/0022-2011(81)90049-5

Cited by 32 publications

(19 citation statements)

References 11 publications

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“…To date, yeast infections in crustaceans have been described from the Copepoda (Metschnikoff 1884, Pixell-Goodrich 1928, Unestam 1973, Codreanu & Codreanu-Balcescu 1981, the Isopoda (Hyniewiecka-Szyfter & Babula 1996, 1997a,b, Hyniewiecka-Szyfter et al 1994) and prawns (Colorni & Diamant 1992, Chen et al 1994, Hsu & Liu 1994, Lu et al 1997, 1998, Chen et al 2001. The current study provides the first documented description of a yeast-like infection in crabs.…”

Section: Discussionmentioning

confidence: 58%

“…Previous studies have identified a number of yeasts that infect crustaceans, including Metschnikowia (Metschnikoff 1884, Unestam 1973, Codreanu & Codreanu-Balcescu 1981, Cryptococcus (Pixell-Goodrich 1928, Spencer et al 1964, Unestam 1973, Hyniewiecka-Szyfter et al 1994, HyniewieckaSzyfter & Babula 1996, 1997a; Candida, Pichia, Endomyces (Lu et al 1998) and Debaryomyces (Hsu & Liu 1994). Also, numerous species of yeast have been isolated from fresh raw seafood products.…”

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confidence: 99%

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Co-infection by a yeast-like organism in Hematodinium-infected European edible crabs Cancer pagurus and velvet swimming crabs Necora puber from the English Channel

Stentiford¹,

Evans²,

Bateman³

et al. 2003

Dis. Aquat. Org.

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During the winter months, edible crabs Cancer pagurus and velvet swimming crabs Necora puber from the English Channel can harbour infections by a Hematodinium sp. dinoflagellate. This parasite is responsible for a highly pathological condition known as 'Pink Crab Disease' (PCD) in the edible crab. In the current study, a high proportion (between 25 and 100%) of Hematodinium-infected edible and velvet swimming crabs captured from 2 sites in the English Channel also harboured a systemic infection by a yeast-like organism. This is the first report of such an infection in crabs. Budding yeast-like cells were observed intracellularly in circulating haemocytes and free in the host plasma. These cells stained positively with silver and periodic acid-Schiff (PAS) reactions. Despite an apparent haemocytopoenia in Hematodinium-infected crabs, haemocytic encapsulation of yeast-like cells was evident, while no such response was observed against Hematodinium sp. plasmodia. It is hypothesised that Hematodinium infection in these crabs may either increase the likelihood of secondary infections via an indirect suppression of the host immune system, or alternatively, decrease the likelihood of competitive growth inhibition by stimulating the host immune system to encapsulate and destroy secondary pathogens. Results are discussed with regard to the likely identity of the yeast-like organism, and the role of secondary pathogens in the eventual mortality of Hematodinium-infected hosts.KEY WORDS: Cancer pagurus · Haemocytes · Hematodinium · Immunosuppression · Necora puber · Secondary infection · YeastResale or republication not permitted without written consent of the publisher

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Section: Discussionmentioning

confidence: 58%

mentioning

confidence: 99%

Co-infection by a yeast-like organism in Hematodinium-infected European edible crabs Cancer pagurus and velvet swimming crabs Necora puber from the English Channel

Stentiford¹,

Evans²,

Bateman³

et al. 2003

Dis. Aquat. Org.

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“…Yeasts are common in aquatic habitats, but few have been demonstrated to be pathogenic. One pathogenic species, Metschnikowia bicuspidata, infects the cladoceran Daphnia magna (Codreanu & Codreanu-Balcescu 1981).…”

Section: Discussionmentioning

confidence: 99%

Metschnikowia bicuspidata dominates in Taiwanese cold-weather yeast infections of Macrobrachium rosenbergii

Chen¹,

Chen²,

Kwang³

et al. 2007

Dis. Aquat. Org.

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“…Infection takes place upon ingestion of spores by water‐filtering hosts. Mature, needle‐shaped spores pierce the gut wall before reaching the haemolymph (Codreanu & Codreanu‐Balcescu, ). Infection symptoms become clearly visible after 9–10 days, when the host's body cavity starts to fill with the ascus stage (Stewart Merrill & Cáceres, ).…”

Section: Methodsmentioning

confidence: 99%

Temperature and host diet jointly influence the outcome of infection in a Daphnia‐fungal parasite system

Manzi

Agha

et al. 2019

Freshwater Biology

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Climate change has the potential to shape the future of infectious diseases, both directly and indirectly. In aquatic systems, for example, elevated temperatures can modulate the infectivity of waterborne parasites and affect the immune response of zooplanktonic hosts. Moreover, lake warming causes shifts in the communities of primary producers towards cyanobacterial dominance, thus lowering the quality of zooplankton diet. This may further affect host fitness, resulting in suboptimal resources available for parasite growth. Previous experimental studies have demonstrated the respective effects of temperature and host diet on infection outcomes, using the zooplankter Daphnia and its microparasites as model systems. Although cyanobacteria blooms and heat waves are concurrent events in nature, few attempts have been made to combine both stressors in experimental settings. Here, we raised the zooplankter Daphnia (two genotypes) under a full factorial design with varying levels of temperature (the standard 19°C and elevated 23°C), food quality (Scenedesmus obliquus as high‐quality green algae, Microcystis aeruginosa and Planktothrix agardhii as low‐quality cyanobacteria) and exposed them to the parasitic yeast Metschnikowia bicuspidata. We recorded life history parameters of the host as well as parasite traits related to transmission. The combination of low‐quality cyanobacterial diets and elevated temperature resulted in additive detrimental effects on host fecundity. Low‐quality diets reduced parasite output, while temperature effects were context dependent. Overall, we argue that the combined effects of elevated water temperature and poor‐quality diets may decrease epidemics of a common fungal parasite under a climate change scenario.

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On two Metschnikowia yeast species producing hemocoelic infections in Daphnia magna and Artemia salina (Crustacea, Phyllopoda) from Romania

Cited by 32 publications

References 11 publications

Co-infection by a yeast-like organism in Hematodinium-infected European edible crabs Cancer pagurus and velvet swimming crabs Necora puber from the English Channel

Co-infection by a yeast-like organism in Hematodinium-infected European edible crabs Cancer pagurus and velvet swimming crabs Necora puber from the English Channel

Metschnikowia bicuspidata dominates in Taiwanese cold-weather yeast infections of Macrobrachium rosenbergii

Temperature and host diet jointly influence the outcome of infection in a Daphnia‐fungal parasite system

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