The influence of gut microorganisms on zinc uptake in Helix aspersa

Simkiss, K.; Watkins, Barbara

doi:10.1016/0269-7491(90)90006-x

Cited by 34 publications

(18 citation statements)

References 15 publications

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“…To our knowledge, this is the first analysis of bacterial strains found in the gut of H. pomatia. C. aspersum was already investigated by Simkiss and Watkins (1990), by Lesel et al, (1990). Citrobacter, Klebsiella, Enterobacter, Staphylococcus, Streptococcus and Vibrio were facultative anaerobes previously noticed in the snail gut, but briefly described.…”

Section: Do the Snails Harbour Autochthonous Microbes In Their Gut?mentioning

confidence: 99%

“…Some authors suggested the role of bacteria in fermentative processes of the hosts (Charrier et al, 1998) in particular the breakdown of chitin and soluble cellulose (Lesel et al, 1990;Brendelberger, 1997). Others argued that bacteria are transient populations able to interact with snail intake of soil pollutants (Simkiss, 1985;Simkiss and Watkins, 1990). Only recently were described the environmental characteristics (pH, O 2 ) in Helicid guts (Charrier and Brune, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Isolation and characterization of cultivable fermentative bacteria from the intestine of two edible snails, Helixpomatia and Cornu aspersum (Gastropoda: Pulmonata)

Charrier

Fonty²,

Gaillard-Martinie³

et al. 2006

Biol. Res.

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The intestinal microbiota of the edible snails Cornu aspersum (Syn: H. aspersa), and Helix pomatia were investigated by culture-based methods, 16S rRNA sequence analyses and phenotypic characterisations. The study was carried out on aestivating snails and two populations of H. pomatia were considered. The cultivable bacteria dominated in the distal part of the intestine, with up to 5.10 9 CFU g -1 , but the Swedish H. pomatia appeared significantly less colonised, suggesting a higher sensitivity of its microbiota to climatic change. All the strains, but one, shared ≥ 97% sequence identity with reference strains. They were arranged into two taxa: the Gamma Proteobacteria with Buttiauxella, Citrobacter, Enterobacter, Kluyvera, Obesumbacterium, Raoultella and the Firmicutes with Enterococcus, Lactococcus, and Clostridium. According to the literature, these genera are mostly assigned to enteric environments or to phyllosphere, data in favour of culturing snails in contact with soil and plants. None of the strains were able to digest filter paper, Avicel cellulose or carboxymethyl cellulose (CMC). Acetogens and methanogenic archaea were not cultivated, so the fate of hydrogen remains questionable. This microbiota could play important roles in the digestive process (fermentation) and the energy supply of the snail (L-lactate, acetate). The choice of cereals and plants by snail farmers should take into account the fermentative abilities of the intestinal microbiota.

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Section: Do the Snails Harbour Autochthonous Microbes In Their Gut?mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Isolation and characterization of cultivable fermentative bacteria from the intestine of two edible snails, Helixpomatia and Cornu aspersum (Gastropoda: Pulmonata)

Charrier

Fonty²,

Gaillard-Martinie³

et al. 2006

Biol. Res.

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“…For example, for metals, Laskowsky and Hopkin (1996a) used nitrate salts, whereas the action of chlorides and sulfates was currently compared, although no di!erences were seen between the two salts. However, it is not impossible that nitrates have a repulsive action, since Simkiss and Watkins (1990) reported that adding zinc nitrate to the food suppressed feeding by about 38% in normal adult H. aspersa.…”

Section: Reasons For Optimizing the Testmentioning

confidence: 97%

Standardized Growth Toxicity Testing (Cu, Zn, Pb, and Pentachlorophenol) with Helix aspersa

Vaufleury

2000

Ecotoxicology and Environmental Safety

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“…The effect of accumulated heavy metals on different molluscan tissues and possible use of such alterations as biomarkers of exposure to xenobiotics has been investigated [8,9]. Molluscs have shown considerable promise as biomonitors of metal pollution [83], and an extensive literature has appeared concerning mechanisms of uptake, detoxification and storage of heavy metals [84]. Few studies on several fresh water and marine species further substantiate the role of molluscs as bioaccumulators [85].…”

Section: C-reactive Protein (Crp) a Multifunctional Player In Achatinamentioning

confidence: 99%

“…It is reported that terrestrial snails might regulate some metals assimilated from food and xenobiotic exposure [7]. The kinetics of metal accumulation and detoxification are still a subject of discussion, and there is a lack of information regarding metal toxicity in snails [84,87].…”

Section: C-reactive Protein (Crp) a Multifunctional Player In Achatinamentioning

confidence: 99%

The Uniqueness of Achatina fulica in its Evolutionary Success

Mukherjee¹,

Sarkar²,

Munshi³

et al. 2017

Organismal and Molecular Malacology

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The increasing load of environmental pollutants poses a serious threat over the globe. In this vulnerable situation, it is essential to have alternative sources of medicines, may be from invertebrates. Among invertebrates, although molluscs are known for their consumption as food and ethno-medicinal use, the importance of these animals is still overlooked. Presently attention has been geared toward molluscs including Achatina fulica which are now considered as one of the most evolutionary successful animals. During the last few decades, researchers are trying to decipher their complex immune system to harvest valuable molecules to treat human diseases. In the present review, the existence of important immunological factors in Achatina is discussed addressing the coagulation system, innate immune molecules, bioactive proteins and lastly the enigmatic C-reactive proteins.

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The influence of gut microorganisms on zinc uptake in Helix aspersa

Cited by 34 publications

References 15 publications

Isolation and characterization of cultivable fermentative bacteria from the intestine of two edible snails, Helixpomatia and Cornu aspersum (Gastropoda: Pulmonata)

Isolation and characterization of cultivable fermentative bacteria from the intestine of two edible snails, Helixpomatia and Cornu aspersum (Gastropoda: Pulmonata)

Standardized Growth Toxicity Testing (Cu, Zn, Pb, and Pentachlorophenol) with Helix aspersa

The Uniqueness of Achatina fulica in its Evolutionary Success

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