Nematodes are the group most numerous invertebrate animals on the planet, occupying almost all ecological niches. In Brazil there are few studies related to identification of nematodes in indigenous areas. The aim of this study was to identify and document the Helicotylenchus and Aorolaimus in areas of Amazon rainforest in four counties of northeastern Pará. 12 soil samples from native forests in the municipali...
As pesquisas sobre o controle biológico de nematóides com fungos nematófagos têm se intensificado nos últimos anos. O conhecimento das condições ecológicas adequadas ao crescimento e esporulação desses fungos é um pré-requisito para obtenção de culturas puras que atendam à demanda para formulação desses organismos. Com o objetivo de avaliar o crescimento micelial e a esporulação de Arthrobotrys musiformis e A. ...
Na safra de 2001/2002, uma população de Meloidogyne javanica infectou uma cultivar de soja tida como resistente na Fazenda Barra, Município de Nuporanga, São Paulo. Este fato sugeriu uma avaliação da resistência de algumas das principais cultivares utilizadas nas áreas de abrangência da Cooperativa dos Agricultores da Região de Orlândia (CAROL), São Paulo. O estudo foi conduzido em condições de casa de vegetaçã...
Fifteen specimens of Piaractus mesopotamicus (pacu), measuring 15 cm standard length, were collected from a fishpond at Aquaculture Center of Unesp, Jaboticabal, SP, Brazil. Fishes were maintained in 350 L aquariums for a further sacrifice with MS-222. For the Scanning Electron Microscopy, gill filaments were fixed in 3% glutaraldehyde. Specimens of Trichodina sp (Ciliophora), Henneguya piaractus (Myxozoa) and ...
Biological control is a promising alternative for the control of pre-parasitic stages through the action of nematophagous fungi’s. The present study evaluated in vitro the patogenicity of both Arthrobotrys musiformis and A. conoides fungi on “infective larvae (or L3 state larvae)” of Haemonchus contortus, L3 larvae of Ancylostoma spp. And larvated eggs of the nematode Ascaridia galli. Nine groups were formed: s...
Nematode-trapping fungi have been studied as a promising alternative to control bovine gastrointestinal parasites and plant parasitic nematodes. Some encouraging results have been achieved with some species, by many researchers. Nematophagous fungi such as Arthrobotrys javanica, Dactylella leptospora, Monacrosporium eudermatum, M. robustum e Nematoctonus campylosporus were isolated from soil samples collected f...
The cornea is exposed to various types of injuries. Because of this, authors have studied different methods for corneal repair. Among these are the free and island conjunctival grafts. In this study, the purpose was to compare these two techniques, with special attention given to surgical procedures and their applicability, effects on corneal healing and post-surgical follow-up. We compared free and island auto...
Estudaram-se comparativamente enxertos autógenos de conjuntiva pediculados e de córnea no reparo experimental de ceratectomias superficiais em cães (Canis familiaris). Empregaram-se 24 animais e estudaram-se as técnicas segundo parâmetros clínicos, histológicos e por microscopia eletrônica de varredura, em períodos precoces e tardios de pós-operatório. Os resultados obtidos indicaram que as técnicas propostas ...