Um caso de parasitismo por Rhabditis sp em criança natural de Goiânia, Goiás, Brasil

Campos, Dulcinéa Maria Barbosa; Araújo, José Luíz de Barros; Vieira, Maria Cristina M.; Damasceno, Fátima; Barbosa, Alverne Passos

doi:10.1590/s0037-86822002000500016

Cited by 17 publications

(16 citation statements)

References 4 publications

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“…These were the places that had the parcels with the largest amount of garbage and decomposing organic matter. Nematodes of the genus Rhabditis are free-living and may be naturally found in humid places with decaying organic matter (Campos et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

“…Rhabditis nematodes were found in the faeces of a child with abdominal disorders, in the state of Goiás, Brazil (Campos et al, 2002). The possibility of the presence of nematodes in humans can be considered when there is manipulation of the environment and subsequent contamination, once the species is free life and the mollusks can serve as carriers of these nematodes (Anderson et al, 1982).…”

Section: Discussionmentioning

confidence: 99%

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Achatina fulica (Gastropoda: Pulmonata): Occurrence, environmental aspects and presence of nematodes in Sergipe, Brazil

et al. 2020

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Abstract The objective of this study was to identify the occurrence of Achatina fulica in the Great Aracaju-SE Territory. This research was developed during the months of June 2016 to May 2017. The plots methodology was used for the monthly collections, following the collection time of 20 minutes per area. The mollusks were measured and soon afterwards the parasitological analysis of the mucus and faeces was performed. Molecular identification was performed to evaluate the possible presence of Angiostrongylus sp. We observed that the occurrence of A. fulica was more representative in urban areas, especially in vacant lots with the presence of litter and decomposing materials. In the specimens of A. fulica examined were male and female nematodes of the genus Rhabditis, in the research municipalities, except in Barra dos Coqueiros. No parasites of the genus Angiostrongylus were found in the mollusks examined. The influence of the presence of litter on the plots associated with the frequency of A. fulica was statistically significant. There was a correlation between the influence of rainfall and the frequency of A. fulica. A significant relationship between moisture and frequency and nematode positivity was identified. It was also observed that the larger the mollusk, the greater the chances of being infected by nematodes. Scientific knowledge about the biology of the A. fulica species associated with human intervention such as the maintenance of land and adequate sanitary measures may be important factors for a better control of this invasive mollusk.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Achatina fulica (Gastropoda: Pulmonata): Occurrence, environmental aspects and presence of nematodes in Sergipe, Brazil

et al. 2020

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“…Nestes locais foi observada muita matéria orgânica em decomposição, o que poderia favorecer um grande número de registro dos hospedeiros. A população de nematoides e de rotíferos e, consequentemente, de seus parasitas geralmente é alta em ambientes ricos em matéria orgânica (Neweu-Lemaire 1936, Campos et al 2002.…”

Section: Comentáriosunclassified

“…Neste estudo, houve maior número de observação de parasitismo em nematoide (Rhabditis sp), o que concorda com o esquema proposto por Dick (1995Dick ( , 2001b 1981, Mateus Júnior 1985, Campos et al 2002.…”

Section: Comentáriosunclassified

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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“…In terms of public health, A. fulica is a potential intermediate host of nematodes of medical importance, such as Angiostrongylus costaricensis Morera and Céspedes, 1971 and Angiostrongylus cantonensis (Chen, 1935), related to the abdominal and meningocerebral angiostrongyliasis (Thiengo et al, 2007;Maldonado Júnior et al, 2010). It can be also a potential both an intermediate and paratenic host of some parasites of wild animals species of Aelurostrongylus Cameron, 1927 (Thiengo et al, 2008;Oliveira et al, 2010) could parasite lung both domestic and wild cats (Ribeiro and Lima, 2001), Rhabditis Dujardin, 1845, that lodge in the external auditory canal of cattle, causing otitis (Martins Júnior, 1985;Campos et al, 2002;Thiengo, 2009;Barbosa et al, 2016) and Strongyluris Mueller, 1894, which are intestinal parasites mainly found in lizards (Kohn et al, 1973;Vicente et al, 1993;Rocha and Vrcibradic, 2003).…”

Section: Introductionmentioning

confidence: 99%

Distribution of cysts of Strongyluris sp. (Nematoda) in the pallial system of Achatina fulica Bowdich, 1822 from Vila Dois Rios and Vila do Abraão, Ilha Grande, Angra dos Reis, Rio de Janeiro

Oliveira

Santos

2019

Braz. J. Biol.

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This work aimed to assessing Strongyluris sp. cysts distribution pattern in the several inner organs from pallial system of Achatina fulica Bowdich, 1822. Also we verified if there is a relationship between the mollusk size and the number of specimens from parasites collected from two touristic villages in Ilha Grande (Angra dos Reis, Rio de Janeiro state): Vila Dois Rios (VDR) and Vila do Abraão (ABR). The samples were obtained through a field work conducted bimonthly during 2007, 2008, 2010, and 2011, at both locations. Height and width were measured from shells collected, and the all specimens were classified in different classes: class 1 - <4.0 cm, class 2 - 4.1-9.0 cm and class 3 - < 9.0 cm. After the specimens were dissected in order to find and count the number cysts in the pallial system. In specimens from both locations, the pulmonary and secondary veins showed a high number of cysts. No significance difference was found both in the abundance of cysts among the specimens in ABR (p=0.138) and VDR (p=0.181). Achatina fulica showed different intensities of cyst infection based on the size classes: the class-3 specimens, at both locations, showed the greatest cyst average (ABR Anova F= 3.8; p=0.02); (VDR T of Student T= -2.04; p=0.04). The results suggested that the highest number of cysts in the vascularized area in pallial system of A. fulica was a consequence of a greater hemolymph circulation in that area, delivering more nutrients for larvae development. We think that bigger individuals host a higher number of cysts, as they usually present a larger biomass and a larger area of the pallial system, allowing an efficient parasite colonization. Other possible explanation could be the long exposure of the molluscs of class 3 to the parasites, which allowed a longer time to the larvae to allocate themselves.

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Um caso de parasitismo por Rhabditis sp em criança natural de Goiânia, Goiás, Brasil

Cited by 17 publications

References 4 publications

Achatina fulica (Gastropoda: Pulmonata): Occurrence, environmental aspects and presence of nematodes in Sergipe, Brazil

Achatina fulica (Gastropoda: Pulmonata): Occurrence, environmental aspects and presence of nematodes in Sergipe, Brazil

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

Distribution of cysts of Strongyluris sp. (Nematoda) in the pallial system of Achatina fulica Bowdich, 1822 from Vila Dois Rios and Vila do Abraão, Ilha Grande, Angra dos Reis, Rio de Janeiro

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