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The plants responded to the addition of vermicompost, with a 20% increase in size. Palavras-chave: nursery; earthworm; Eisenia foetida. · resumo em Espanhol. Lumbricus terrestris, especie conocida por sus características edáficas, agronómicas .. anélido (particularmente las especies Eisenia fetida y E. andrei) en los. Effects of ionizing radiation on the earthworm, Eisenia foetida, were as características químicas e a atividade microbiana do vermicomposto não foram.

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In biosolid-borne trials, the bioaccumulation of methyl-triclosan in earthworm tissues was higher than the parent compound TCS. DNA damage and oxidative stress induced by imidacloprid exposure in the earthworm Eisenia fetida. Bioavailability of nonextractable bound residues to earthworms. Eisenia andrei has a differential capacity along its body to modulate adjustments of molecular responses, which could allow the tolerance and effectiveness of survival in Cd-polluted soils.

Estimating biotransformation rate constants of organic chemicals from modeled and measured elimination rates. Studies exposing aposymbiotic hatchlings to colonized adults and their bedding material suggested that juvenile earthworms do not readily acquire bacteria from the soil after hatching but must be colonized during development by bacteria deposited in the egg capsule.

Absorption of TEL into the tissues is comparatively less than that of lead oxide but toxic effects were severe. Department of Health and Human Services, Full Text Available In the fish aquaculture management, fish feed is identified as a major problem. The vermiwashed water of the setup is analyzed for total protein.

We conclude that exposure to low concentrations of TCS in artificial soil can significantly affect the growth and reproductive performance of earthworms i. Coelomic fluids of the two earthworm species E. Results indicate that the presence of TEL in leaded gasoline and lead oxide has a eixenia effect on behavior, morphology, and histopathology of earthworms.

In conclusion, bioaccumulation of byproducts and their production of reactive oxygen species could be responsible for the alteration of the antioxidant system in worms. The protein acted as a protease under alkaline conditions whereas it exhibited DNase activity under acid conditions.


HCB hexachlorobenzene is an environmentally ubiquitous organochlorine compound and is classified as one of the persistent organic pollutants POP. The factor under study was the percentage of earthworm flour in a basic diet.

earthworm eisenia foetida: Topics by

Por sua vez, Viswanathan et al. Uptake and elimination rates eksenia modeling suggested that steady state bioaccumulation was reached within 28 days of exposure for all PFAAs. Influence of soil properties on the bioaccumulation and effects of arsenic in the earthworm Eisenia andrei.

In our tests, we were able to show that the earthworms avoided commercially fabricated silver nanoparticles in a dose and time dependent manner. The earthworm Eisenia foetida glycolipoprotein as known G is a blend of macromolecules with some biological properties including mitogenicity, anticoagulation, fibrinolysis, bacteriostatic and antioxidatiaon.

Características da minhoca Eisenia foetida – Benefícios e mais-valias ambientais

Full text of publication follows: Hence when evaluating the potential effects of pollutants, it may be important to known how changes in test conditions influence toxicity. Abstract Two new megadrile earthworms from the steppes, the first species wholly from Outer Mongolia, are ascribed to the partially parthenogenetic Eisenia nordenskioldi Eisen, species-complex.

These results indicated that Ea and Ef species, easy to maintain in laboratory and commonly used as convenient models in biomedicine and ecotoxicology, may also serve in studies on molecular basis of interspecific barriers and mechanisms of introgression and speciation. Transformation and degradation of pesticides in soil. The malondialdehyde content was increased by high levels of [C8 mim]Cl at 14 d and 28 d, indicating that [C8 mim]Cl could lead to lipid peroxidation in earthworms. The low immunotoxicity effect might be explained by the involvement of other mechanisms i.

Características da minhoca Eisenia foetida – Benefícios e mais-valias ambientais – Research

Ameliorating acidic soils is a common practice and may affect the bioavailability of an ionizable organic pollutant to organisms. Henry’s law constants for hexachlorobenzene, p,p’-DDE and components of technical chlordane and estimates of gas exchange for Lake Ontario.

Ionic liquids that are not that “green” to many organisms have recently been identified. Aged crumb rubber and new crumb rubber appear to pose similar toxic risks to earthworms. Heavy metal content in the vermicompost was within the limit of USEPA for Biosolids and the compost could be used for the agriculture purpose. The accumulation of CAP in earthworms was 0.


Here we model the accumulation kinetics of 18 elements by Eisenia fetida, exposed to 8 metal-contaminated and 2 uncontaminated soils. Selected agronomic parameters have also been measured in the final product vermicompost to assess the influence of earthworms on substratum.

Minimum mortality and highest population size of worms was observed in Furthermore, addition of wheat straw resulted in greater total respiration in all soils tested land-farm soil, noncontaminated reference soil, and a 1: This study examines the mechanisms that govern aggregation behaviour specially the tendency of individuals to leave or join groups in the compost earthworm Eisenia fetida, a species with considerable economic importance, especially in waste management applications.

MDA content in treatment groups was higher than in the control group throughout the exposure time, suggesting that DBP may lead to oxidative stress in cells. Terrestrial behaviour of pesticides. Polycyclic aromatic hydrocarbons PAHs and potentially toxic elements PTEs were monitored over 56 days in calcareous contaminated-soil amended with either or both biochar and Eisenia fetida.

Nevertheless, our findings that earthworm additions improved plant growth and that straw additions enhanced microbial activity in land-farm soil suggest that these treatments may be compatible with plant-based remediation techniques currently under evaluation in field trials, and could reduce the time required to restore soil ecosystem function.

Avoidance of Ag nanoparticles by earthwormsEisenia fetida. The stem cell pluripotency factor, Sox2, can play a crucial role in cell reprogramming and dedifferentiation.