Feeding behaviour of the terrestrial isopod Porcellionides pruinosus Brandt, 1833 (Crustacea, Isopoda) in response to changes in food quality and contamination

Loureiro, Susana; Sampaio, Alexandra; Brandão, Ana Filipa Fernandes Aguiar; Nogueira, António J.A.; Soares, Amadeu M.V.M.

doi:10.1016/j.scitotenv.2006.05.023

Cited by 76 publications

(45 citation statements)

References 27 publications

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“…Terrestrial isopods are macro-invertebrates involved in decomposition processes, vegetal litter fragmentation and recycling of nutrients [8][9][10][11][12][13], therefore being essential to maintain the function and structure of the soil compartment. Exposure to xenobiotics may affect edaphic organisms, consequently changing the overall soil function, and decreasing soil quality and soil services [14].…”

Section: Hnmrmetabolomicsmentioning

confidence: 99%

Metabolic responses of the isopod Porcellionides pruinosus to nickel exposure assessed by 1H NMR metabolomics

Ferreira

Saborano

Morgado

et al. 2016

Journal of Proteomics

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This work aimed at characterizing the metabolome of the isopod Porcellionides pruinosus and at assessing its variations over 14 days under laboratory culture conditions and upon exposure to the contaminant metal Nickel (Ni). The spectral profiles obtained by 1 H NMR spectroscopy were thoroughly assigned and subjected to multivariate analysis in order to highlight consistent changes. Over 50 metabolites could be identified, providing considerable new knowledge on the metabolome of these model organisms. Several metabolites changed non-linearly with Ni dose and exposure time, showing distinct variation patterns for initial (4 days) and later time points (7 and 14 days). In particular, at day 4, several amino acids were increased and sugars were decreased (compared to controls), whereas these variations were inverted for longer exposure, possibly reflecting earlier and more intensive moulting. Other variations, namely in betaines and choline-containing compounds, were suggested to relate with osmoregulation and detoxification mechanisms. Ni also had a marked effect on several nucleotides (increased upon exposure) and a moderate impact on lipids (decreased upon exposure). Overall, this study has provided new information on the Ni-induced metabolic adaptations of the P. pruinosus isopod, paving the way for improved mechanistic understanding of how these model organisms handle soil contamination.Significance: This study provided, for the first time to our knowledge, a detailed picture of the NMR-detectable metabolome of terrestrial isopods and of its fluctuations in time and upon exposure to the contaminant metal Nickel. Several time-and dose-dependent changes were highlighted, providing mechanistic insight into how these important model organisms handle Ni contamination.

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Section: Hnmrmetabolomicsmentioning

confidence: 99%

Metabolic responses of the isopod Porcellionides pruinosus to nickel exposure assessed by 1H NMR metabolomics

Ferreira

Saborano

Morgado

et al. 2016

Journal of Proteomics

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“…The leaves were left to dry at room temperature for one day before being offered as food. Isopods were placed individually in chambers containing a net and a plaster bottom (for details, see Loureiro et al (2006)). For the uptake phase, Ag dosed alder leaves were offered ad libitum to the isopods for 21 days.…”

Section: Experimental Setup -Dietary Exposurementioning

confidence: 99%

“…However, these differences could be explained by the food consumption ratio. Isopods can avoid highly contaminated food by decreasing food consumption (Drobne and Hopkin, 1995;Loureiro et al, 2006;Zidar et al, 2012). Thus, the higher Ag concentration in AgNO3-spiked food could be related to their lower food consumption (see Fig.…”

Section: Soil Exposurementioning

confidence: 99%

Toxicokinetics of Ag in the terrestrial isopod Porcellionides pruinosus exposed to Ag NPs and AgNO3 via soil and food

et al. 2015

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Soares, Amadeu M.V.M.; Loureiro, Susana. 2016. Toxicokinetics of Ag in the terrestrial isopod Porcellionides pruinosus exposed to Ag NPs and AgNO3 via soil and food. Ecotoxicology, 25 (2). 267-278. 10.1007/s10646-015-1585-7 Contact CEH NORA team at noraceh@ceh.ac.ukThe NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. Isopods were exposed to contaminated Lufa 2.2 soil or alder leaves as food.Uptake and elimination rate constants for soil exposure did not significantly differ between Ag NPs and ionic Ag at 30 and 60 mg Ag/kg. For dietary exposure, the uptake rate constant was up to 5 times higher for Ag NPs than for AgNO3, but this was related to feeding activity and exposure concentrations, while no difference in the elimination rate constants was found. When comparing both routes, dietary exposure resulted in lower Ag uptake rate constants but elimination rate constants did not differ. A fast Ag uptake was observed from both routes and most of the Ag taken up seemed not to be eliminated. Synchrotron X-ray fluorescence showed Ag in the S-cells of the hepatopancreas, thus supporting the observations from the kinetic experiment (i.e. low elimination). In addition, our results show that isopods have an extremely high Ag accumulation capacity, suggesting the presence of an efficient Ag storage compartment.

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“…This knowledge not only helps in understanding the functioning of the ecosystem, but also in seeking information to establish management practices for reclamation of degraded areas and maintenance of local productivity in the reclamation process (Souza and Davide, 2001;Selle, 2007). Several studies claim that decomposition rates are mainly influenced by three factors, namely: (a) environmental factors (temperature, humidity, seasonality, and pedological factors), (b) litter chemical composition (lignin rates, cellulose, phenolic compounds, mineral elements, and stimulating or allelopathic substances), which vary according to the plant species, and (c) the diversity and abundance of detritivores and decomposers (Swift et al, 1979;Aerts, 1997;Gonzalez and Seastedt, 2001;Andrade et al, 2003;Loureiro et al, 2006;Illig et al, 2008;Scheer, 2008;Souto et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Litter Decomposition of Two Pioneer Tree Species and Associated Soil Fauna in Areas Reclaimed after Surface Coal Mining in Southern Brazil

Frasson

Rosado

Elias

et al. 2016

Rev. Bras. Ciênc. Solo

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Decomposition of leaf litter from pioneer tree species and development of associated soil meso-and macrofauna are fundamental for rehabilitation processes in reclaimed coal mining areas. The aim of our study was to evaluate decomposition of Schinus terebinthifolius and Senna multijuga to answer three basic questions: (i) What type of leaf litter degrades faster in reclaimed coal min\ing areas? (ii) Is leaf decomposition correlated with the stage of regeneration and exposure time? and (iii) Does the type of leaf litter influence the diversity and abundance of the soil meso-and macrofauna species collected? Experiments were carried out in the state of Santa Catarina in three areas at different stages of regeneration. A total of 32 litter bags (16 per plant species) were used per study site, and they were divided into four blocks along a transect. Sampling was carried out at 15, 30, 60, and 120 days, when one litter bag per species/block was removed at random. We found no statistically significant difference between S. terebinthifolius and S. multijuga in regard to leaf-litter decomposition rate. However, the "area", "litter bag exposure time" and "fauna richness" factors were significant. Therefore, shading and time of reclamation of areas contribute to an increase in decomposition rate and in development of soil meso-and macrofauna communities.

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Feeding behaviour of the terrestrial isopod Porcellionides pruinosus Brandt, 1833 (Crustacea, Isopoda) in response to changes in food quality and contamination

Cited by 76 publications

References 27 publications

Metabolic responses of the isopod Porcellionides pruinosus to nickel exposure assessed by 1H NMR metabolomics

Metabolic responses of the isopod Porcellionides pruinosus to nickel exposure assessed by 1H NMR metabolomics

Toxicokinetics of Ag in the terrestrial isopod Porcellionides pruinosus exposed to Ag NPs and AgNO3 via soil and food

Litter Decomposition of Two Pioneer Tree Species and Associated Soil Fauna in Areas Reclaimed after Surface Coal Mining in Southern Brazil

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