Life stages and tentative life cycle ofPsorospermium haeckeli, a species of the novel DRIPs clade from the animal-fungal dichotomy

Vogt, Günter; Rug, Melanie

doi:10.1002/(sici)1097-010x(19990101)283:1<31::aid-jez5>3.0.co;2-q

Cited by 21 publications

(25 citation statements)

References 39 publications

(2 reference statements)

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“…Cerenius et al 2003;Oidtmann et al, 2008;Dunn et al, 2009;Hochwimmer et al, 2009;Kozubikova et al, 2009;Vrålstad et al, 2009), or protists such as Psorospermium haeckeli (e.g. Rug & Vogt, 1994;Gydemo, 1996;Vogt, 1998;Vogt & Rug, 1999;Bangyeekhun et al, 2001), there are other more poorly studied groups. This is the case of Ostracoda belonging to the family Entocytheridae.…”

Section: Introductionsupporting

confidence: 90%

An invaded invader: high prevalence of entocytherid ostracods on the red swamp crayfish Procambarus clarkii (Girard, 1852) in the Eastern Iberian Peninsula

et al. 2011

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The American red swamp crayfish Procambarus clarkii (Girard, 1852) was introduced in 1973 into the Iberian Peninsula for commercial purposes. As a result of both the expansion from the Iberian Peninsula and, probably, further introductions in other European countries, now it is widely distributed throughout much of Europe. The ecological impacts of this invading crayfish have received increasing attention, but nothing is known about its symbiotic entocytherid ostracods outside the American continent. The present survey has examined more than 200 crayfishes from 12 localities distributed over a wide area of Eastern Spain. Entocytherid ostracods were extracted from individual crayfishes and they were identified, counted, assigned to developmental instars and sexed. In all the study locations but one, we found at least one crayfish individual infected by entocytherid ostracods and the species determined was the same in all cases: Ankylocythere sinuosa (Rioja, 1942). The number of ostracods on individual P. clarkii varied notably in relation to crayfish size and also differed significantly among sampling sites. The crayfish size effects on ostracod densities might be related to the amount of resources and to the crayfish age and moulting frequency affecting ostracod distribution and population structure. In addition, the spatial variation in ostracod densities could also be related to site-specific habitat traits and the variability of crayfish population dynamics. Our study represents the first citation of an alien entocytherid species in Europe and demonstrates its wide distribution in the Iberian Peninsula. Further research is needed to know the potential effects of this ostracod species on the ecology of P. clarkii and of native species, with implications on the management of this aquatic invader.

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Section: Introductionsupporting

confidence: 90%

An invaded invader: high prevalence of entocytherid ostracods on the red swamp crayfish Procambarus clarkii (Girard, 1852) in the Eastern Iberian Peninsula

et al. 2011

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“…Though most sphaeroformine Choanofila have a naked amoeboid dispersal phase, these are only filose with tapering pointed pseudopodia in Psorospermis (formerly Psorospermium; see Table 7) (Vogt and Rug 1999). In other genera, they are blunt ended and thus more lobose in character: Creolimax pseudopodia are clearly lobose (Marshall et al 2008); Pirum is mostly nonamoeboid and does not use its rare finger-like lobose pseudopodia for locomotion, and the numerous knoblike pseudopods of Abeoforma though called filose (Marshall and Berbee 2011) are not really so, as they resemble the short finger-like pseudopodia of the mayorellian morphotype of lobose Amoebozoa (Smirnov et al 2011) more than they do any filose amoeba.…”

Section: Revision Of Choanozoa the Ancestral Opisthokont Phylummentioning

confidence: 99%

Early evolution of eukaryote feeding modes, cell structural diversity, and classification of the protozoan phyla Loukozoa, Sulcozoa, and Choanozoa

Cavalier‐Smith

2013

European Journal of Protistology

172

194

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“…The life cycle for Psorospermium haeckeli and similar species has not been fully elucidated but studies suggest a diphasic life cycle (Vogt and Rug, 1999). Several different life stages of the Psorospermium parasite have been described (Grabda, 1934;Vogt, 1994, 1995;Evans and Jussila, 1997) comprising early "amoeboid" forms and a resting "cyst" or "spore" form.…”

Section: Life Cycle/life Historymentioning

confidence: 99%

Synopsis of freshwater crayfish diseases and commensal organisms

et al. 2002

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Disease agents and pests associated with freshwater crayfish fall into six main categories-viruses, bacteria, rickettsia-like organisms (RLOs), fungi, protists, and metazoans. Data and information on specific disease agents and pests from each of these categories are presented in this synopsis. Each agent or group of agents is considered under the following headings-condition, causative agent(s), life cycle/life history, epizootiology, pathology, pathogen viability. Information for the synopsis was obtained from the published literature and from personal contact with internationally recognized experts in freshwater crayfish aquaculture, biology, and disease. Data of relevance for import risk analysis are summarized.Import risk analysis is the process by which the risks associated with importation of animals and plants, and products derived from animals and plants, are assessed and managed. Hazard identification is essential and is the first component of an import risk analysis. In 1996, the Australian Quarantine and Inspection Service (AQIS) commenced a review of policy relating to the importation of nonviable freshwater crayfish products, along with a suite of other aquatic animal products. AQIS2 commissioned a synopsis of freshwater crayfish pests and pathogens for use as a resource document for hazard identification in the formal IRA process.

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Life stages and tentative life cycle ofPsorospermium haeckeli, a species of the novel DRIPs clade from the animal-fungal dichotomy

Cited by 21 publications

References 39 publications

An invaded invader: high prevalence of entocytherid ostracods on the red swamp crayfish Procambarus clarkii (Girard, 1852) in the Eastern Iberian Peninsula

An invaded invader: high prevalence of entocytherid ostracods on the red swamp crayfish Procambarus clarkii (Girard, 1852) in the Eastern Iberian Peninsula

Early evolution of eukaryote feeding modes, cell structural diversity, and classification of the protozoan phyla Loukozoa, Sulcozoa, and Choanozoa

Synopsis of freshwater crayfish diseases and commensal organisms

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