Letteratura scientifica selezionata sul tema "Enchytraeid"
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Articoli di riviste sul tema "Enchytraeid"
DÓZSA-FARKAS, KLÁRA, e YONG HONG. "Three new Hemienchytraeus species (Enchytraeidae, Oligochaeta, Annelida) from Korea, with first records of other enchytraeids and terrestrial polychaetes (Annelida)". Zootaxa 2406, n. 1 (23 marzo 2010): 29. http://dx.doi.org/10.11646/zootaxa.2406.1.2.
Testo completoCoates, Kathryn A. "Redescriptions of Aspidodrilus and Pelmatodrilus, enchytraeids (Annelida, Oligochaeta) ectocommensal on earthworms". Canadian Journal of Zoology 68, n. 3 (1 marzo 1990): 498–505. http://dx.doi.org/10.1139/z90-073.
Testo completoGajda, Łukasz, Agata Daszkowska-Golec e Piotr Świątek. "Trophic Position of the White Worm (Enchytraeus albidus) in the Context of Digestive Enzyme Genes Revealed by Transcriptomics Analysis". International Journal of Molecular Sciences 25, n. 9 (25 aprile 2024): 4685. http://dx.doi.org/10.3390/ijms25094685.
Testo completoDEGTYAREV, MAXIM I., IURII M. LEBEDEV, KSENIA G. KUZNETSOVA, RUSLAN A. SAIFUTDINOV, KONSTANTIN B. GONGALSKY e DANIIL I. KOROBUSHKIN. "Enchytraeidae (Annelida: Oligochaeta) from Eastern Dagestan, Russia, with the description of a new species". Zootaxa 5094, n. 2 (3 febbraio 2022): 331–40. http://dx.doi.org/10.11646/zootaxa.5094.2.7.
Testo completoNiva, C. C., R. M. Cezar, P. M. Fonseca, M. R. G. Zagatto, E. M. Oliveira, E. F. Bush, L. A. Clasen e G. G. Brown. "Enchytraeid abundance in Araucaria Mixed Forest determined by cold and hot wet extraction". Brazilian Journal of Biology 75, n. 4 suppl 1 (24 novembre 2015): 169–75. http://dx.doi.org/10.1590/1519-6984.08414.
Testo completoDÓZSA-FARKAS, KLÁRA, HAJNALKA NAGY, TAMÁS FELFÖLDI e YONG HONG. "Four new enchytraeid species (Enchytraeidae, Annelida) from a Korean mountain (Jeoksangsan)". Zootaxa 5094, n. 2 (3 febbraio 2022): 234–60. http://dx.doi.org/10.11646/zootaxa.5094.2.2.
Testo completoDÓZSA-FARKAS, KLÁRA, TAMÁS FELFÖLDI, HAJNALKA NAGY e YONG HONG. "New enchytraeid species from Mount Hallasan (Jeju Island, Korea) (Enchytraeidae, Oligochaeta)". Zootaxa 4496, n. 1 (4 ottobre 2018): 337. http://dx.doi.org/10.11646/zootaxa.4496.1.27.
Testo completoPetrikovszki, Renáta, Fanni Bárányos, Amelita Gerda Molnár, Ferenc Tóth e Gergely Boros. "Different organic mulch materials affect the abundance of enchytraeids in an open-field experiment". Columella : Journal of Agricultural and Environmental Sciences 8, n. 1 (2021): 13–24. http://dx.doi.org/10.18380/szie.colum.2021.8.1.13.
Testo completoSCHLAGHAMERSKÝ, JIŘÍ, e LEE E. FRELICH. "First records of Parergodrilus heideri (Annelida: "Polychaeta") from North America". Zootaxa 3498, n. 1 (26 settembre 2012): 81. http://dx.doi.org/10.11646/zootaxa.3498.1.5.
Testo completoVáclav, Pižl, Jiří Schlaghamerský e Jan Tříska. "The effects of polycyclic aromatic hydrocarbons and heavy metals on terrestrial annelids in urban soils". Pesquisa Agropecuária Brasileira 44, n. 8 (agosto 2009): 1050–55. http://dx.doi.org/10.1590/s0100-204x2009000800038.
Testo completoTesi sul tema "Enchytraeid"
Thompson, Astrid M. "Enchytraeids and nitrogen : the effects of nitrogen on enchytraeid populations and the influence of enchytraeids on nitrogen translocation in soil". Thesis, Durham University, 2005. http://etheses.dur.ac.uk/1288/.
Testo completoSilva, Ana Luísa Patrício. "Impact of natural and/or chemical stressors on the freeze-tolerant and euryhaline enchytraeid, Enchytraeus albidus". Doctoral thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/16009.
Testo completoRapid climatic changes are taking place in Arctic, subarctic and cold temperate regions, where predictions point to an increase in freeze-thaw events, changes in precipitation, evaporation and salinity patterns. Climate change may therefore result in large impacts in ecosystem functioning and dynamics, especially in the presence of contaminants due to intense anthropogenic activities. Even though multiple stress approaches have received increasing interest in the last decades, the number of such studies is limited. In particular, knowledge on the effect of freezethaw events and salinity fluctuations on ecotoxicology of soil invertebrates is lacking, especially important when considering supralittoral species. Therefore, the aim of this thesis was to investigate the effects of low temperature and salinity fluctuations, singly and in combination with contaminants, in the freeze-tolerant and euryhaline enchytraeid Enchytraeus albidus. The assessment of population level endpoints (survival and reproduction), along with physiological and biochemical parameters such as levels of cryoprotectants, ice/water content, oxidative stress biomarkers, cellular energy allocation, and tissue concentration of chemicals (when applied), provided new and valuable knowledge on the effects of selected physical and chemical stressors in E. albidus, and allowed the understanding of adjustments in the primary response mechanisms that enable worms to maintain homeostasis and survival in harsh environments such as polar and temperate-cold regions. The presence of moderate levels of salinity significantly increased freeze-tolerance (mainly evaluated as survival, cryoprotection and ice fraction) and reproduction of E. albidus. Moreover, it contributed to the readjustments of cryoprotectant levels, restoration of antioxidant levels and changed singnificantly the effect and uptake of chemicals (copper cadmium, carbendazim and 4-nonylphenol). Temperature fluctuations (simulated as daily freeze-thaw cycles, between -2ºC and -4ºC) caused substancial negative effect on survival of worms previsouly exposed to non-lethal concentrations of 4-nonylphenol, as compared with constant freezing (-4ºC) and control temperature (2ºC). The decrease in cryoprotectants, increase in energy consumption and the highest concentration of 4-nonylphenol in the tissues have highlighted the high energy requirements and level of toxicity experienced by worms exposed to the combined effect of contaminants and freezing-thawing events. The findings reported on this thesis demonstrate that natural (physical) and chemical stressors, singly or in combination, may alter the dynamics of E. albidus, affecting not only their survival and reproduction (and consequent presence/distribution) but also their physiological and biochemical adaptations. These alterations may lead to severe consequences for the functioning of the ecosystems along the Arctic, subarctic and cold temperate regions, where they play an important role for decomposition of dead organic matter. This thesis provides a scientific basis for improving the setting of safety factors for natural soil ecosystems, and to underline the integration of similar investigations in ecotoxicology, and eventually in risk assessment of contaminants.
As alterações climáticas estão a atingir rapidamente as regiões do Ártico, SubÁrtico e as regiões temperadas, apontando as previsões para um aumento de eventos de congelamento-descongelamento, bem como mudanças nos padrões de precipitação, evaporação e de salinidade. Estas alterações climáticas poderão resultar em impactos francamente negativos no funcionamento e dinâmica de ecossistemas, especialmente quando associados à presença de contaminantes resultantes da intensa atividade antropogénica. Embora a incorporação de stressores múltiplos em estudos de ecotoxicidade tenha recebido um crescente interesse pela comunidade científica, o seu número é ainda reduzido. Particularizando, o conhecimento dos efeitos de eventos de congelamento-descongelamento e de flutuações de salinidade permanecem desconhecidos, especialmente quando se consideram espécies supra-litorais. Neste contexto, o objetivo geral da presente tese consistiu em investigar os efeitos das flutuações de temperaturas e salinidade, individualmente ou em combinação com contaminantes, no enquitraídeo tolerante ao frio e eurialino - o Enchytraeus albidus. A avaliação de parâmetros populacionais (sobrevivência, reprodução e bioacumulação), fisiológicos (níveis de crioprotetores, conteúdo em gelo / água, temperatura de fusão e sobrecongelamento) e bioquímicos (biomarcadores de stress oxidativo, alocação de energia celular) permitiu compilar novas e valiosas informações sobre os efeitos dos stressores físicos e químicos selecionados no enquitraídeo e compreender quais os reajustes nos mecanismos de resposta primários que lhes permitem manter a homeostasia e sobrevivência em ambientes inóspitos como as regiões Polares e temperadas-frias. A presença de níveis moderados de salinidade aumentou significativamente a tolerância a temperaturas congelantes (essencialmente avaliada como sobrevivência, crioprotecção e fracção de gelo extracelular) e a reprodução do E. albidus. Além disso, contribuiu para a regulação de crioprotectores, restauração dos níveis de antioxidantes nestes organismos e alterou significativamente o efeito e a incorporação/absorção de substâncias químicas (cádmio, cobre carbendazim e 4-nonilfenol). As flutuações de temperatura (simuladas como ciclos diários de congelamento-descongelamento, com temperaturas entre 2ºC e -4ºC) causaram um efeito substancialmente negativo na sobrevivência de organismos previamente expostos a concentrações não letais de 4-nonilfenol, quando comparados com organismos expostos a uma temperatura congelante constante (-4ºC) ou à temperatura controlo (2ºC). A diminuição na crioproteção, o aumento no consumo de energia e a maior concentração de 4-nonilfenol nos tecidos vieram sublinhar o elevado gasto energético e o nível de toxicidade sofrido pelos organismos expostos à combinação de contaminantes e eventos de congelamento e descongelamento. Os resultados apresentados nesta tese demonstram, assim, que a presença de stressores naturais (físicos) e químicos, isoladamente ou em combinação, podem alterar a dinâmica do E. albidus, afetando não só a sua sobrevivência e reprodução (e consequente presença / distribuição), mas também as suas adaptações fisiológicas e bioquímicas. Essas alterações podem levar a consequências graves para o funcionamento dos ecossistemas do Ártico, subÁrtico e regiões temperadas-frias, uma vez que estes organismos desempenham um papel importante para a decomposição de matéria orgânica morta. Esta tese fornece ainda uma base científica para melhorar a atribuição de coeficientes de segurança para os ecossistemas naturais do solo, alertando para a integração de investigações semelhantes em ecotoxicologia, e, eventualmente, para a avaliação de risco ecológico de contaminantes.
Hullot, Olivier. "Approche d'écotoxicologie fonctionnelle par l'étude des interactions sol-plante-annélides en sol contaminé". Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASB012.
Testo completoSoil pollution is key environmental issue. A large part of European soils is contaminated by trace elements. Depending on the contamination level organisms exposed to degraded and contaminated soils can be affected in a variety of ways but generally contamination affects the biological activity. However, several researches have shown the importance of ecological linkages in soils, particularly the so-called "belowground-aboveground" relationships that connect the below-ground and above-ground soil communities. One of the most well-known of these relationships is the soil-plant-earthworm interactions. Earthworms are known to improve the ecological functions associated with fertile soils. For example, they can increase the primary production of both wild and cultivated plants and at the same time they have a key role in regulating soil communities. But in the case of contaminated soil their role is still poorly documented. Enchytraeids are oligochaete annelids that play the same ecological role as earthworms. However, there are few researches that confirm this hypothesis, whatever the soil contaminated or not. In this work, we hypothesised that the knowledge gained on soil-plant-annelid interactions in non-contaminated soils are transferable to polluted soils. In this case, annelids in interaction with plants could participate to the valorisation of these soils. We raised several questions: Do activities of annelids in contaminated soils affect the bioavailability of trace elements? Is there a reciprocity of influence between the soil organisms or plants? Are the annelids effects on the short or the long-term following several annelid life cycles? To answer these questions, we performed ex-situ experiments in cosmes. We used a soil classified as marginal because of its sandy texture, and field contaminated by several metallic trace elements (sublethal contents in Cu, Zn, Cd). Three different biological species were studied, alone or in interaction: Aporrectodea caliginosa, an endogeic earthworm found in agricultural soils, Enchytraeus albidus, an enchytraeid with a large habitat suitable for ecotoxicological testing, and finally Lolium perenne, a forage grass.We have seen an increase in the primary output of the contaminated soil via an increase in plant biomass, when a close connection between the roots and the annelids was assessed. We also showed that both annelid species have the ability to increase biomass production. However, when they move away from the roots, this positive effect decreases. This favourable effect on plants is due to an increase in nutrient bioavailability, linked to the annelid activities. However, annelids also tend to increase trace metal fluxes, and then their environmental availability with high contents in soil solution. But the plant has in turn a powerful regulatory power that limits metal transfers to the soil pore water. Furthermore, the trace element values observed in organisms differ from one chemical species to the other, as well as from one biological species to the other. Finally, the presence of species and the changes in their habitat have an impact on other organisms. We have shown that the presence of plants is favourable to the development of earthworms, boosting the soil's capacity to host them over time. The presence of earthworms in the soil, on the other hand, accelerates the burial of enchytraeids in the deeper layers of the soil and tends to diminish the amount of enchytraeids detected in soil surface. In our experimental conditions, we confirm that knowledge acquired for uncontaminated soils can be applied also for contaminated soils. However, fluxes of major elements are accompanied by fluxes of trace elements whose impact have to be checked in all the biological compartments of the system. Finally, we detected feedback from the plant to the earthworms, indicating intricate soil-plant-annelid connections that has to be taken into account for their better understanding
Beylich, Anneke. "Untersuchungen an Enchytraeiden (Oligochaeta) zum Einfluss von Bodenfeuchte und pH-Wert auf die Toxizität von Schwermetallen im Freiland und in Laborversuchen". Berlin, 2001. http://www.diss.fu-berlin.de/2002/50/index.html.
Testo completoTschuschke, Steffen. "Das Cd-induzierbare crp-Gen aus dem terrestrischen Oligochaeten Enchytraeus genomische Organisation und Bedeutung für die Cd-Detoxifizierung /". [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962777951.
Testo completoJohnson, Paul James. "Ecological studies on the Enchytraeidae (Oligochaeta) of streams in southern England". Thesis, University of Reading, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252674.
Testo completoNovais, Sara Calçada. "From genes to population: effects of toxicants on Enchytraeus albidus". Doctoral thesis, Universidade de Aveiro, 2011. http://hdl.handle.net/10773/7445.
Testo completoNowadays, a systems biology approach is both a challenge as well as believed to be the ideal form of understanding the organisms’ mechanisms of response. Responses at different levels of biological organization should be integrated to better understand the mechanisms, and hence predict the effects of stress agents, usable in broader contexts. The main aim of this thesis was to evaluate the underlying mechanisms of Enchytraeus albidus responses to chemical stressors. Therefore, there was a large investment on the gene library enrichment for this species, as explained ahead. Overall, effects of chemicals from two different groups (metals and pesticides) were assessed at different levels of biological organization: from genes and biochemical biomarkers to population endpoints. Selected chemicals were: 1) the metals cadmium and zinc; 2) the insecticide dimethoate, the herbicide atrazine and the fungicide carbendazim. At the gene and sub-cellular level, the effects of time and dosage were also adressed. Traditional ecotoxicological tests - survival, reproduction and avoidance behavior - indicated that pesticides were more toxic than metals. Avoidance behaviour is extremely important from an ecological point of view, but not recommended to use for risk assessment purposes. The oxidative stress related experiment showed that metals induced significant effects on several antioxidant enzyme activities and substrate levels, as well as oxidative damage on the membrane cells. To increase the potential of our molecular tool to assess transcriptional responses, the existing cDNA library was enriched with metal and pesticide responding genes, using Suppression Subtractive Hybridization (SSH). With the sequencing information obtained, an improved Agilent custom oligonucleotide microarray was developed and an EST database, including all existing molecular data on E. albidus, was made publicly available as an interactive tool to access information. With this microarray tool, most interesting and novel information on the mechanisms of chemical toxicity was obtained, with the identification of common and specific key pathways affected by each compound. The obtained results allowed the identification of mechanisms of action for the tested compounds in E. albidus, some of which are in line with the ones known for mammals, suggesting across species conserved modes of action and underlining the usefulness of this soil invertebrate as a model species. In general, biochemical and molecular responses were influenced by time of exposure and chemical dosage and these allowed to see the evolution of events. Cellular energy allocation results confirmed the gene expression evidences of an increased energetic expenditure, which can partially explain the decrease on the reproductive output, verified at a later stage. Correlations found throughout this thesis between effects at the different levels of biological organization have further improved our knowledge on the toxicity of metals and pesticides in this species.
Actualmente, em ecotoxicologia, uma abordagem ao nível da biologia de sistemas representa não só um desafio, como se acredita ser a forma ideal para a compreensão dos mecanismos de resposta dos organismos. A integração de respostas de diferentes níveis de organização biológica, permite a melhor percepção dos mecanismos envolvidos, e assim possibilita a previsão de efeitos de agentes tóxicos num contexto alargado. O objectivo principal desta tese foi a avaliação dos mecanismos de resposta de Enchytraeus albidus a stressores químicos. Desta forma, um grande investimento foi feito de forma a enriquecer a biblioteca genómica desta espécie, como explicado mais adiante. Em suma, os efeitos de compostos químicos pertencentes a duas classes diferentes (metais e pesticidas) foram avaliados a níveis de organização biológica distintos: desde parâmetros populacionais até bioquímicos e moleculares com a alteração de expressão genética. Os compostos seleccionados foram: 1) os metais cádmio e zinco; 2) o insecticida dimetoato, herbicida atrazina e fungicida carbendazim. Ao nível sub-cellular e genético, os efeitos do tempo de exposição e da dose aplicada também foram avaliados. Os testes de ecotoxicologia tradicionais – sobrevivência, reprodução e evitamento – mostraram uma maior toxicidade dos pesticidas em relação aos metais. O evitamento é um parâmetro de extrema importância do ponto de vista ecológico, apesar de não recomendado para avaliação de risco. O estudo dos indicadores de stress oxidativo revelou que o Zn e o Cd induziram efeitos significativos na actividade de várias enzimas antioxidantes e níveis de substratos, provocando igualmente danos oxidativos nas membranas celulares. De forma a aumentar as potencialidades da nossa ferramenta molecular disponível para avaliar respostas ao nível da transcrição, a biblioteca de cDNA existente foi enriquecida com genes de resposta a metais e a pesticidas, usando o método de SSH. A partir das sequências obtidas foi desenvolvido um microarray de oligonucleótidos (Agilent), assim como uma base de dados de utilização gratuita na internet que reúne todos os dados moleculares disponíveis para E. albidus e constitui uma ferramenta interactiva de acesso a informação. Com a aplicação do novo microarray, foram obtidos dados novos e relevantes acerca dos mecanismos de toxicidade, tendo sido possível a identificação de diferentes vias metabólicas afectadas por cada composto químico. Os resultados obtidos permitiram a identificação de mecanismos de acção destes compostos em E.albidus que, em grande parte, coincidem com mecanismos descritos para mamíferos, sugerindo que os modos de acção são conservados em várias espécies e sublinhando a utilidade deste invertebrado como espécie modelo. De um modo geral, as respostas bioquímicas e moleculares foram influenciadas pelo tempo de exposição e concentração do composto tóxico, permitindo seguir a evolução dos eventos. Os resultados da determinação da alocação energética confirmaram as evidências de um aumento de gastos energéticos, sugeridas pelo microarray, e que podem explicar parcialmente o decréscimo na reprodução verificado numa fase posterior. As correlações encontradas no decorrer desta tese entre parâmetros de vários níveis de organização biológica, contribuíram para uma melhor compreensão da toxicidade de metais e pesticidas nesta espécie.
Gonçalves, Micael Ferreira Mota. "Development of novel short and long term studies in Enchytraeus crypticus". Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/18562.
Testo completoA maioria dos estudos ecotoxicológicos têm investigado os efeitos de curto prazo dos contaminantes. Comparativamente, tem sido desenvolvido pouco trabalho na avaliação dos efeitos a longo prazo dos químicos existindo portanto uma necessidade de preencher esta lacuna. De entre as espécies de solo usadas em ecotoxicologia estão os Enquitraídeos (Oligochaeta), membros importantes da mesofauna terrestre com diretrizes padrão para testar os efeitos ao nível da sobrevivência, reprodução e bioacumulação (ISO, 2004; OECD, 2010, 2004). Para a espécie Enchytraeus crypticus, existe também disponível o cDNA microarray com mais de 40 000 transcritos (Castro-Ferreira et al., 2014) sendo uma vantagem competitiva em relação a outras espécies padrão. O principal objetivo desta pesquisa foi desenvolver novos testes de curto e longo prazo, abrangendo novos/diferentes endpoints para E. crypticus. A habilidade de regeneração do E. crypticus foi descoberta e o processo de regeneração foi descrito; este pode ser adicionalmente utilizado para avaliar os efeitos de tóxicos em testes de curto prazo. O desenvolvimento embrionário de E. crypticus foi investigado e um teste de embriotoxicidade foi desenvolvido (pela primeira vez em um invertebrados do solo). O cádmio (Cd) foi usado como substância de teste para validar o teste embriotoxicidade dados os seus conhecidos efeitos embriotóxicos. Os resultados mostraram que o Cd causou uma diminuição no sucesso da eclosão devido a um atraso ou interrupção na formação de estruturas embrionárias. Um teste de longevidade (com avaliação da sobrevivência e reprodução ao longo do tempo) foi desenvolvido para E. crypticus. Este ensaio de exposição de longo prazo foi utilizado para avaliar os efeitos de nanopartículas de óxido de cobre (CuO-NPs) em comparação com CuCl2 revelando que CuO-NPs causou efeitos superiores (diminuindo a longevidade e reduzindo a reprodução) do que CuCl2, a uma concentração de efeito semelhante. Este ensaio traz um novo conceito em ecotoxicidade, a longevidade. Este é um especto particularmente importante quando o assunto é a toxicidade de nanomateriais (NMs), onde se espera que o tempo de exposição a longo prazo revele efeitos imprevisíveis através dos testes correntes de curto/longo prazo. O uso dos novos ensaios desenvolvidos podem melhorar a avaliação dos perigos dos produtos químicos.
Most of the ecotoxicity studies have investigated the short-term effects of chemicals. Comparatively, little work has been done in the assessment of the long-term effects of chemicals and there is a need to fill this gap. Among soil species used in ecotoxicology are Enchytraeids (Oligochaeta), important members of the terrestrial mesofauna with standard guidelines for testing effects at survival, reproduction and bioaccumulation level (ISO, 2004; OECD, 2010, 2004). For the species Enchytraeus crypticus, there is also available the cDNA microarray with more than 40 000 transcripts (Castro-Ferreira et al., 2014) being a competitive advantage in comparison to other standard species. The main goal of this research was to develop novel short and long-term tests, covering new/different endpoints, for E. crypticus. Regeneration ability of E. crypticus was discovered and the regeneration process was described; this can be further used as endpoint to assess the effects of toxicants in short-term studies. The embryonic development of E. crypticus was investigated and an embryotoxicity test was developed (for the first time in a soil invertebrate). Cadmium (Cd) was used as a test substance to validate the embryotoxicity test given its known embryotoxic effects. Results showed that Cd caused a decrease in the hatching success due to a delay or disruption in formation of embryonic structures. A lifespan test (with assessment of survival and reproduction over time) was developed for E. crypticus. This long-term exposure assay was used to assess the effects of copper oxide nanoparticles (CuO-NPs) in comparison with CuCl2 revealing that CuO-NPs caused higher effects (shortening lifespan and reducing reproduction) than CuCl2, at similar effect concentration. This lifespan assay brings a novel concept in ecotoxicity, the longevity. This is a particularly important aspect when the subject is nanomaterials (NMs) toxicity, where longer term exposure time is expected to reveal unpredicted effects via the current short/long-term tests. The use of the new assays developed can improve the hazard assessment of chemicals.
Locke, Jan Maureen. "Systematics and biology of Grania (Annelida: clitellata: Enchytraeidae) of the Bermuda Islands". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0003/MQ45419.pdf.
Testo completoAssis, Orlando. "Enquitreídeos (Enchytraeidae, Oligochaeta) como indicadores do manejo do solo e em ensaios ecotoxicológicos". Universidade Tecnológica Federal do Paraná, 2015. http://repositorio.utfpr.edu.br/jspui/handle/1/1848.
Testo completoAgriculture occupies a large area of the Brazilian territory, interacting with the major biomes. Soil management, the use of pesticides and fertilizers can contribute to the imbalance of the biota, the soil fauna, impacting the harmony of the whole soil ecosystem. The soil disturbance in plowing and disking exposes the soil fauna to the sun' radiation, which can be harmful to of species in this environment. Synthetic fertilizers can unbalance levels of soil nutrients, directly impacting the dynamics of organisms. The pesticides can be deleterious to the living organisms in the soil. This study aims to evaluate potential of the enchytraeids as soil management indicators in areas of horticulture and grain farming and to identify which factors influence the abundance and diversity of these worms in different land use systems (SUS); It also aims to assess the potential of the enchytraeids to respond to the natural soil quality of the areas of study and the toxicity of recommended doses of the most used pesticide (glyphosate) in laboratory tests; Four land use systems (SUS) in Quitandinha – PR were chosen for the present study: Organic Vegetable Crops (OO), Conventional Vegetable Crops (OC) and Conventional tillage (LC), Native Forest (FN) with true repetitions. The abundance of enchytraeids was statistically higher in FN than LC, while the richness of genera reduced from six to two, respectively. Among the soil attributes, forest areas had lower pH, organic matter, nitrogen and higher potassium than other SUS in the other SUS and lower amount of phosphorus than the areas of conventional tillage. In ecotoxicological tests under laboratory conditions the number of juveniles of Enchytraeus sp produced in soil of the areas studied for 21 days of incubation were higher in soils from FN than LC. in agreement to field abundance data. Ecotoxicological tests with gliphosate in concentrations based on doses used by the agricultures in the area sudied showed that in artficial soil, even concentrations equivalent to recommended doses may reduce reproduction significantly, suggesting this popular herbicide may be harmful to enchytraeids and should be used with caution. The results suggest the abundance and richness of genera are good indicators of soil use systems in the area studied and that the autochthonous enchytraeid Enchytraeus sp responded well to laboratory tests to evaluate soil quality.
Libri sul tema "Enchytraeid"
Römbke, Jörg. Organisation and performance of an International Ringtest for the Validation of the Enchytraeid Reproduction Test. Berlin: Umweltbundesamt, 1999.
Cerca il testo completoInternational Symposium on Enchytraeidae (4th 2000 Denmark). Proceedings of the 4th International Symposium on Enchytraeidae, Mols Laboratory, Denmark, 2-4 June 2000. Aarhus, Denmark: Natural History Museum, 2002.
Cerca il testo completoLocke, Jan Maureen. Systematics and biology of Grania (Annelida: Clitellata: Enchytraeidae) of the Bermuda Islands. Ottawa: National Library of Canada, 1999.
Cerca il testo completoCoates, Kathryn. Phylogenetic analysis of some Enchytraeidae (Annelida: Oligochaeta): Parsimony analysis of structural characters. [Victoria, B.C.]: The author, 1987.
Cerca il testo completoLagerlöf, Jan. Ecology of soil fauna in arable land: Dynamics and activity of microarthropods and enchytraeids in four cropping systems. Uppsala: Swedish University of Agricultural Sciences, Dept. of Ecology and Environmental Research, 1987.
Cerca il testo completoTest No. 220: Enchytraeid Reproduction Test. OECD, 2016. http://dx.doi.org/10.1787/9789264264472-en.
Testo completoTest No. 220: Enchytraeid Reproduction Test. OECD Publishing, 2004. http://dx.doi.org/10.1787/9789264070301-en.
Testo completoToxicity Assessments of Antimony, Barium, Beryllium, and Manganese for Development of Ecological Soil Screening Levels (ECO-SSL) Using Enchytraeid Reproduction Benchmark Values. Storming Media, 2002.
Cerca il testo completoHarriman Alaska Series: Enchytraeids. Creative Media Partners, LLC, 2018.
Cerca il testo completoCapitoli di libri sul tema "Enchytraeid"
Amorim, M. J. B., R. Kuperman e J. Römbke. "Enchytraeid Reproduction Tests". In Ecotoxicological Characterization of Waste, 177–82. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-0-387-88959-7_18.
Testo completoRota, Emilia, e Brenda Healy. "The Enchytraeid fauna of North Africa". In Aquatic Oligochaete Biology V, 53–66. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0842-3_6.
Testo completoWestheide, W., e M. C. Müller. "Cinematographic documentation of enchytraeid morphology and reproductive biology". In Aquatic Oligochaete Biology VI, 263–67. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5452-9_29.
Testo completoHealy, Brenda, e Kathryn A. Coates. "Finding enchytraeid oligochaetes (Clitellata) in hot climates: species occurrence on the shores of Bermuda". In Aquatic Oligochaetes, 111–17. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4207-6_11.
Testo completoBruns, Eric, Philipp Egeler, Joerg Roembke, Adam Scheffczyk e Peter Spoerlein. "Bioaccumulation of lindane and hexachlorobenzene by the oligochaetes Enchytraeus luxuriosus and Enchytraeus albidus (Enchytraeidae, Oligochaeta, Annelida)". In Aquatic Oligochaete Biology VIII, 185–96. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0597-5_19.
Testo completoRömbke, J. "Enchytraeus albidus (Enchytraeidae, Oligochaeta) as a Test Organism in Terrestrial Laboratory Systems". In Archives of Toxicology, 402–5. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74117-3_79.
Testo completoRoembke, J., e Th Knacker. "Aquatic toxicity test for enchytraeids". In Aquatic Oligochaete Biology, 235–42. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2393-5_25.
Testo completoValvassori, Roberto, Magda de Eguileor, Giulio Lanzavecchia e Giorgio Scari. "Body wall organization in enchytraeids". In Aquatic Oligochaete Biology, 83–89. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2393-5_9.
Testo completoCoates, Kathryn A. "Phylogeny and origins of Enchytraeidae". In Aquatic Oligochaete Biology, 17–33. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2393-5_3.
Testo completoLanzavecchia, Giulio, Magda de Eguileor, Roberto Valvassori, Laura Di Lernia e Cristina Cambiaso. "Morphogenesis of body wall muscle fibers in Enchytraeus minutus". In Aquatic Oligochaete Biology, 91–97. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2393-5_10.
Testo completoAtti di convegni sul tema "Enchytraeid"
Gonçalves, Maria, Marta Pires e Maraline Zanatta. "Testes com sementes e enchytraeus crypticus da toxicidade do cádmio no solo". In Congresso de Iniciação Científica UNICAMP. Universidade Estadual de Campinas, 2019. http://dx.doi.org/10.20396/revpibic2720191706.
Testo completoVaccaro, Sara, e Marta Siviero Guilherme Pires. "Toxicidade em solo com o organismo Enchytraeus crypticus, teste, cultivo e manutenção." In XXIV Congresso de Iniciação Científica da UNICAMP - 2016. Campinas - SP, Brazil: Galoa, 2016. http://dx.doi.org/10.19146/pibic-2016-50748.
Testo completoToyoda, Kazuma, Kaoru Uesugi e Keisuke Morishima. "Direct observation and behavior analysis of Enchytraeus japonensis in soft material for swarm intelligent micro robots". In 2017 International Symposium on Micro-NanoMechatronics and Human Science (MHS). IEEE, 2017. http://dx.doi.org/10.1109/mhs.2017.8305285.
Testo completoRapporti di organizzazioni sul tema "Enchytraeid"
Kuperman, Roman G., Ronald T. Checkai, Michael Simini, Carlton T. Philips, Jan E. Kolakowski e Carl W. Kurnas. Acute and Chronic Toxicities of TNT and RDX to the Enchytraeid Worm, Enchytraeus crypticus, in Natural Soils. Fort Belvoir, VA: Defense Technical Information Center, novembre 2012. http://dx.doi.org/10.21236/ada570688.
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