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Titolo:
LUTZOMYIA-LONGIPALPIS - PH IN THE GUT, DIGESTIVE GLYCOSIDASES, AND SOME SPECULATIONS UPON LEISHMANIA DEVELOPMENT
Autore:
GONTIJO NF; ALMEIDASILVA S; COSTA FF; MARESGUIA ML; WILLIAMS P; MELO MN;
Indirizzi:
UNIV FED MINAS GERAIS,INST CIENCIAS BIOL,DEPT PARASITOL,CAIXA POSTAL 486 BR-31270901 BELO HORIZONT MG BRAZIL UNIV FED MINAS GERAIS,INST CIENCIAS BIOL,DEPT BIOQUIM & IMUNOL BR-31270901 BELO HORIZONT MG BRAZIL
Titolo Testata:
Experimental parasitology
fascicolo: 3, volume: 90, anno: 1998,
pagine: 212 - 219
SICI:
0014-4894(1998)90:3<212:L-PITG>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
SANDFLY PHLEBOTOMUS-PAPATASI; CHYMOTRYPSIN-LIKE ENZYMES; ANTHOPHORA DIPTERA; PROMASTIGOTES; MEXICANA; MIDGUT; VECTOR; PURIFICATION; BIOSYNTHESIS; TRANSMISSION;
Keywords:
LUTZOMYIA LONGIPALPIS; DIPTERA PSYCHODIDAE; DIGESTIVE GLYCOSIDASES; ALPHA-GLUCOSIDASE (OR SUCROSE ALPHA-GLUCOHYDROLASE; 3.2.1.48); N-ACETYL-BETA-D-GLUCOSAMINIDASE; N-ACETYL-BETA-D-GALACTOSAMINIDASE; ALPHA-L-FUCOSIDASE; GUT PH; LEISHMANIA METACYCLOGENESIS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
36
Recensione:
Indirizzi per estratti:
Citazione:
N.F. Gontijo et al., "LUTZOMYIA-LONGIPALPIS - PH IN THE GUT, DIGESTIVE GLYCOSIDASES, AND SOME SPECULATIONS UPON LEISHMANIA DEVELOPMENT", Experimental parasitology, 90(3), 1998, pp. 212-219

Abstract

Screening for digestive glycosidases in different parts of the gut and associated organs of Lutzomyia longipalpis is reported. Searches forthe enzymes were made in blood-fed and non-blood-fed females and the enzymes were characterized as soluble or membrane-bound molecules. A total of four different activities were detected, corresponding to the following specificities: an alpha-glucosidase, an N-acetyl-beta-D-glucosaminidase, an N-acetyl-beta-D-galactosaminidase, and an alpha-L-fucosidase. Their possible role and importance for Leishmania development are discussed and the alpha-glucosidase enzyme was partially characterized. The pH inside the gut of non-blood-fed phlebotomines was measured with pH indicator dyes. The pH ranges obtained for crop, midgut, andhindgut were, respectively, higher than pH 6, pH 6; and lower than pH6. A hypothesis concerning these data and Leishmania development is proposed. (C) 1998 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 13:46:08