Maullinia ectocarpii gen. et sp. nov. (Plasmodiophorea), an Intracellular Parasite in Ectocarpus siliculosus (Ectocarpales, Phaeophyceae) and other Filamentous Brown Algae

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2000
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Parodi, Elisa
Westermeier, Renato
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An obligate intracellular parasite infecting Ectocarpus spp. and other filamentous marine brown algae is described. The pathogen forms an unwalled multinucleate syncytium (plasmodium) within the host cell cytoplasm and causes hypertrophy. Cruciform nuclear divisions occur during early development. Mature plasmodia become transformed into single sporangia, filling the host cell completely, and then cleave into several hundred spores. The spores are motile with two unequal, whiplash-type flagella inserted subapically and also show amoeboid movement. Upon settlement, cysts with chitinous walls are formed. Infection of host cells is accomplished by means of an adhesorium and a stachel apparatus penetrating the host cell wall, and injection of the cyst content into the host cell cytoplasm. The parasite is characterized by features specific for the plasmodiophorids and is described as a new genus and species, Maullinia ectocarpii.

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ISO 690MAIER, Ingo, Elisa PARODI, Renato WESTERMEIER, Dieter G. MÜLLER, 2000. Maullinia ectocarpii gen. et sp. nov. (Plasmodiophorea), an Intracellular Parasite in Ectocarpus siliculosus (Ectocarpales, Phaeophyceae) and other Filamentous Brown Algae. In: Protist. 2000, 151(3), pp. 225-238. ISSN 1434-4610. eISSN 1618-0941. Available under: doi: 10.1078/1434-4610-00021
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@article{Maier2000-10Maull-32276,
  year={2000},
  doi={10.1078/1434-4610-00021},
  title={Maullinia ectocarpii gen. et sp. nov. (Plasmodiophorea), an Intracellular Parasite in Ectocarpus siliculosus (Ectocarpales, Phaeophyceae) and other Filamentous Brown Algae},
  number={3},
  volume={151},
  issn={1434-4610},
  journal={Protist},
  pages={225--238},
  author={Maier, Ingo and Parodi, Elisa and Westermeier, Renato and Müller, Dieter G.}
}
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