A MILLIPEDE INFESTATION OF AN URBAN AREA OF THE CITY OF CAMPINAS, BRAZIL AND PRELIMINARY TOXICITY STUDIES OF INSECTICIDE BENDIOCARB® TO THE UROSTREPTUS ATROBRUNNEUS PIEROZZI &amp; FONTANETTI, 2006

Fontanetti, Carmem Silvia; Calligaris, Izabela Braggião; Souza, Tatiana da Silva

doi:10.1590/1808-1657v77p1652010

Cited by 6 publications

(1 citation statement)

References 2 publications

(1 reference statement)

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“…Millipedes species are known to damage newly germinated seedlings, roots, and fruits in crops, leading to economic loss in rural areas worldwide (Lordello, 1954; Winder et al, 1993; Wightman & Wightman, 1994; Ebregt et al, 2004 a , 2004 b ). In urban environments, migration and demographic explosions of millipedes are also reported (Cloudsley-Thompson, 1949; Niijima & Shinohara, 1988; Boccardo et al, 2002; Fontanetti et al, 2010). Their presence in high number in such environments is undesirable and their appearance is usually considered repulsive.…”

Section: Introductionmentioning

confidence: 98%

Changes in Synapsin Levels in the MillipedeGymnostreptus olivaceusSchubart, 1944 Exposed to Different Concentrations of Deltamethrin

et al. 2016

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Millipedes are ecologically important soil organisms and may also be an economically threatening species in rural and urban areas when population outbreaks occur. In order to control infestations commercial formulations of deltamethrin have been commonly applied, even though there are few studies about the effects of such insecticide on millipedes. This paper describes the effects of this insecticide on millipedes showing neurotoxic effects assessed by synapsin labeling and confocal microscopy. Deltamethrin concentrations related to the DL50 of the active ingredient and a field concentration were applied topically in the diplopod Gymnostreptus olivaceus to evaluate the behavior, mortality rate, and synapsin levels in the brain 12, 24, and 48h after contact with deltamethin. The insecticide caused mortality at the higher concentrations employed, in which no change was observed in neurotransmission in the survivors. In contrast, at field concentrations, deltamethrin did not cause any deaths, but triggered significant changes in synapsin levels. The results obtained form the synapsin labeling provide several interpretations suggesting that the isolated application of this tool must be associated with additional tools in order to evaluate biologically induced effects of deltamethrin in an accurate way. In addition, the feasibility of chemical control of millipedes with deltamethrin is questioned.

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Section: Introductionmentioning

confidence: 98%

Changes in Synapsin Levels in the MillipedeGymnostreptus olivaceusSchubart, 1944 Exposed to Different Concentrations of Deltamethrin

et al. 2016

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Ultrastructure of oocytes of the Urostreptus atrobrunneus (Diplopoda, Spirostreptida, Spirostreptidae): A potential urban centers plague

Fontanetti

Calligaris

Souza

et al. 2012

Microscopy Res & Technique

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The knowledge of the process of egg formation is indispensable for understanding the mechanisms involved in the reproduction of different species. In this context, the objective of this work was to describe the ultrastructure of the oocytes of Urostreptus atrobrunneus (Spirostreptida), a potential plague of urban centers in different locations of São Paulo State. The lack of knowledge about the morphology, physiology, and the reproductive behavior of the species have hindered an effective control of it. The oocytes of U. atrobrunneus presented three development stages: young oocyte or type I; intermediary oocyte or type II; and mature oocyte or type III. During the oocyte development, the cytoplasm become filled with several globules of protein, drops of lipids, and sphaerocrystals, and it was not observed in many organelles in the oocytes with exception of mitochondria, abundant, principally in young oocytes. The vitelline membrane is also deposited in a discontinuous form and the chorion does not present differentiation of layers. The follicular epithelium alters its shape according to the development phase of the oocyte. Part of the vitellus is from exogenous origin and part is endogenous. Before this, only two studies about the ultrastructural analysis of the female germ cells of diplopods were published.

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Diplopods and Agrochemicals—a Review

Francisco

Fontanetti

2015

Water Air Soil Pollut

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A MILLIPEDE INFESTATION OF AN URBAN AREA OF THE CITY OF CAMPINAS, BRAZIL AND PRELIMINARY TOXICITY STUDIES OF INSECTICIDE BENDIOCARB® TO THE UROSTREPTUS ATROBRUNNEUS PIEROZZI & FONTANETTI, 2006

Cited by 6 publications

References 2 publications

Changes in Synapsin Levels in the MillipedeGymnostreptus olivaceusSchubart, 1944 Exposed to Different Concentrations of Deltamethrin

Changes in Synapsin Levels in the MillipedeGymnostreptus olivaceusSchubart, 1944 Exposed to Different Concentrations of Deltamethrin

Ultrastructure of oocytes of the Urostreptus atrobrunneus (Diplopoda, Spirostreptida, Spirostreptidae): A potential urban centers plague

Diplopods and Agrochemicals—a Review

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