Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 4 de 4
Filtrar
Adicionar filtros








Intervalo de ano
1.
Southeast Asian J Trop Med Public Health ; 1997 Jun; 28(2): 440-9
Artigo em Inglês | IMSEAR | ID: sea-30821

RESUMO

Electrophoretic studies were carried out on isozymes of 3 populations of Anopheles minimus collected from Guangxi and Yunnan Provinces of the People's Republic of China in 1993. Eight proteins were analyzed by 5% polyacrylamide gel electrophoresis. The most variable population, 'Yunnan-Field' (Y-F), was highly polymorphic at 14 of 20 loci (P = 0.700) with an average heterozygosity H of 0.340. P values of 0.500 and 0.700, and H values of 0.220 and 0.210 were obtained for each from 'Guangxi-Lab' (GX-L) and 'Yunnan-Lab' (Y-L), respectively, Nei's genetic distances (D) between Y-L and GX-L, Y-F and GX-L, and Y-F and Y-L were 0.1131, 0.1946 and 0.1069, respectively. These results suggest that GX-L is distant from the 2 other populations, Y-L and Y-F, and that this genetic differentiation between the 2 populations of Yunnan and Guangxi Provinces corresponds to the forms A and B, which were morphologically classified by Xu et al (unpublished).


Assuntos
Animais , Anopheles/genética , China , Eletroforese em Gel de Poliacrilamida , Feminino , Frequência do Gene , Variação Genética , Genética Populacional , Isoenzimas/genética
2.
Southeast Asian J Trop Med Public Health ; 1996 Dec; 27(4): 818-27
Artigo em Inglês | IMSEAR | ID: sea-33858

RESUMO

Electrophoretic studies were carried out on isozymes of 3 populations of Anopheles minimus collected from Guangxi and Yunnan Provinces of the People's Republic of China in 1993. Eight proteins were analyzed by 5% polyacrylamide gel electrophoresis. The most variable population, Y-F, was highly polymorphic at 14 of 20 loci (P=0.700) with an average heterozygosity H of 0.340. P values of 0.500 and 0.700, and H values of 0.220 and 0.210 were obtained for each from 'Guangxi-Lab' (GX-L) and 'Yunnan-Lab' (Y-L), respectively. Nei's genetic distances (D) between Y-L and GX-L, Y-F and GX-L, and Y-F and Y-L were 0.1131, 0.1946 and 0.1069, respectively. These results suggest that GX-L is distant from the 2 other populations, Y-L and Y-F, and that this genetic differentiation between the 2 populations of Yunnan and Guangxi Provinces corresponds to the forms A and B, which were morphologically classified by Xu et al (unpublished).


Assuntos
Alelos , Animais , Anopheles/genética , China , Eletroforese em Gel de Poliacrilamida , Variação Genética , Proteínas de Insetos/genética
3.
Southeast Asian J Trop Med Public Health ; 1995 Dec; 26(4): 748-53
Artigo em Inglês | IMSEAR | ID: sea-31161

RESUMO

Larval density of Anopheles sundaicus in shaded and unshaded fish farming ponds was monitored at a coastal village in North Sumatra, Indonesia. The average density in the experimentally shaded ponds with Nipa leaves was reduced to < 1/10. Disappearance of algae and decline of water temperature also were observed, but the salinity did not change. The larval density was lower in ponds with Tilapia sp than without fish, but that in ponds with Ophiocephalus sp was not significantly lower. Dominant insects collected by dipping were Agrionidae and Libellulidae (Odonata), Corixidae, Notonectidae and Nepidae (Hemiptera), and Dytiscidae (Coleoptera). Density of nymphs of both Odonata and Notonectidae was higher in unshaded ponds. Taking into account longevity of the materials, and easiness in construction and applicability, shading by Nipa leaves was an easy and effective larval control measure against A. sundaicus in non-operating small fish farming ponds if leaves were renewed once in every two months.


Assuntos
Criação de Animais Domésticos , Animais , Anopheles/crescimento & desenvolvimento , Peixes , Indonésia , Insetos Vetores , Larva/crescimento & desenvolvimento , Iluminação/métodos , Controle de Mosquitos/métodos , Densidade Demográfica , Luz Solar , Água
4.
Indian J Ophthalmol ; 1992 Jan-Mar; 40(1): 11-4
Artigo em Inglês | IMSEAR | ID: sea-71511

RESUMO

Several SH reagents, N-ethylmaleimide (NEM), p-chloromercuribenzoic acid (PCMB), p-chloromercuribenzene sulphonate (PCMBS) and monoiodoacetic acid (MIAA) changed the wave form and the peak of the amplitude of the photoresponse remarkably. The effects of amino group modifying reagents, ethyl acetimidate (EA) and isethinyl acetimidate (ITA) on photoresponse were very slight. The possibility of a SH protein as cGMP-sensitive cation channel protein is discussed.


Assuntos
Animais , Adaptação à Escuridão , Luz , Estimulação Luminosa , Células Fotorreceptoras/efeitos dos fármacos , Rana catesbeiana , Retina/efeitos dos fármacos , Transdução de Sinais/fisiologia , Reagentes de Sulfidrila/farmacologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA