Zoosporic fungi in freshwater ecosystems

Voronin, L. V.

doi:10.1134/s1995082908040056

Cited by 18 publications

(8 citation statements)

References 21 publications

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“…We measured hourly water temperature at a 10 cm depth (the average depth of egg masses) in each pond in 2011 at the pond's maximum depth until egg hatching with loggers. Oomycete composition differs depending on wetland pH (Voronin ). We averaged pH at five points in each pond taken in April, May and June with a with pH probe.…”

Section: Methodsmentioning

confidence: 99%

Population of origin and environment interact to determine oomycete infections in spotted salamander populations

Urban

Lewis

Fučíková

et al. 2014

Oikos

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Spatial variation in disease risk in wild populations can depend both on environmental and genetic factors. Understanding the various contributions of each factor requires experimental manipulation of both the environment and genetic composition of populations under natural field conditions. We first examined natural patterns of oomycete composition and infection in the eggs of 13 populations of the spotted salamander Ambystoma maculatum. We then performed a fully factorial field transplant of the eggs of six populations to separate the contributions from population of origin and the environment on oomycete resistance in spotted salamanders. Among wild ponds, we found strong variation in oomycete infections in spotted salamander populations and differences in the composition of oomycete communities. In transplant experiments, salamander populations differed in their resistance to oomycete infections via a significant interaction between population of origin and environment. However, not all populations were locally adapted to local conditions. One population was significantly adapted to its home environment, and another one was significantly maladapted. These population effects could originate from differential adaptation of salamander populations to local oomycete communities or environmental conditions that mediate resistance, local adaptation and maladaptation of oomycetes to hosts, or from maternal transmission. Accounting for both environment and population of origin will often be necessary to understand disease dynamics in wild populations.

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Section: Methodsmentioning

confidence: 99%

Population of origin and environment interact to determine oomycete infections in spotted salamander populations

Urban

Lewis

Fučíková

et al. 2014

Oikos

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“…For example, fungal parasitism can have a significant effect on interspecies competition of algae due to the degree of specificity in the alga attacked (Sen 1988a,b). Quite often, the parasitic fungi cause epidemic infections in zooplankton, resulting in substantial disturbances in the trophic chain of aquatic cenoses (Voronin 2008).…”

Section: Introductionmentioning

confidence: 99%

Diversity and dynamics of the fungal community in Lake Ohrid

Comic¹,

Ranković²,

Novevska³

et al. 2010

Aquat. Biol.

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“…Este trabajo constituye el primer estudio sobre parásitos heterótrofos zoospóricos de zooplancton en el estado de Piauí; informando de la presencia de las siguientes especies: Myzocytiopsis vermicola (Zopf) intrOduçãO Os ambientes aquáticos são ecologicamente influenciados pela ação dos fungos, bactérias e organismos osmotróficos heterotróficos. Eles decompõem os substratos orgânicos disponíveis nos corpos d'água e são fontes de alimento para numerosos invertebrados (Voronin 2008), apresentam enzimas que mineralizam a matéria orgânica de origem animal ou vegetal, como fonte de carbono e de energia (Barron 2003). A composição dessas comunidades é afetada por fatores bióticos e abióticos e está em contínuas e dinâmicas mudanças, ocorrendo uma complexa interação de organismos intra e interespecífica (Glockling e Beakes 2000).…”

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O gênero Myzocytiopsis (Oomycota) no estado do Piauí: Novos registros para o Brasil

Rocha¹,

Rocha²,

Machado³

2017

G. Sci.

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Organismos que compõem o plâncton e o perifíton são potenciais hospedeiros de vários ecto e endoparasitas. O parasitismo é um tipo de relação ecológica comum nos diversos ambientes da natureza e particularmente importante nestas relações. Em algumas situações, um número significativo desses organismos pode atuar como parasitas, alterando a densidade, sobrevivência, fecundidade, vida útil dos hospedeiros e índice de crescimento das populações. Muitos desses patógenos pertencem ao filo Oomycota. Myzocytiopsis são oomicetos parasitas de nematoides, rotíferos e anfípodes. Observações de plâncton cultivado com substratos orgânicos (celulósicos, queratinosos e quitinosos) e água e de plâncton cultivado com substratos orgânicos e solo diluído de três municípios do Estado do Piauí, permitiram registrar espécimes de organismos zoospóricos heterotróficos parasitando dois tipos de hospedeiros, nematoides (Rhabditis sp) e rotíferos (Lecane sp). Este trabalho se constitue no primeiro estudo de parasitas zoospóricos heterotróficos de zooplâncton no Estado, relatando a ocorrência das seguintes espécies Myzocytiopsis vermicola (Zopf) M. W. Dick, M. papillata (G. L. Barron) M. W. Dick, M. humicola (G.L. Barron & Percy) M. W. Dick e Myzocytiopsis sp, observadas parasitando nematoides (Rhabditis sp), e de M. zoophthora (Sparrow) M. W. Dick, parasitando rotíferos (Lecane sp). Os relatos são novos registros de Myzocytiopsis para o Brasil.

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Zoosporic fungi in freshwater ecosystems

Cited by 18 publications

References 21 publications

Population of origin and environment interact to determine oomycete infections in spotted salamander populations

Population of origin and environment interact to determine oomycete infections in spotted salamander populations

Diversity and dynamics of the fungal community in Lake Ohrid

O gênero Myzocytiopsis (Oomycota) no estado do Piauí: Novos registros para o Brasil

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