Страница 1 од 16 резултати
The cell surface of Azospirillum brasilense was probed by using fluorescein isothiocyanate (FITC)-labeled lectins, with binding determined by fluorescence-activated flow cytometry. Cells from nitrogen-fixing or ammonium-assimilating cultures reacted similarly to FITC-labeled lectins, with lectin
Indole-3-acetyl-l-aspartate (IAAsp) was isolated from seeds of Glycine max L. cv. Hark and its identity established by its chromatographic performance and its mass spectral fragmentation. Following acid hydrolysis, the aspartate moiety was shown to be the l-enantiomer by reverse phase high
Pathogenicity test of Fusarium oxysporum on ten cultivars of soybean revealed Soymax and Punjab-1 to be most resistant while JS-2 and UPSM-19 were most susceptible. Antigens were prepared from the roots of all the ten varieties of soybean and the mycelium of F. oxysporum. Polyclonal antisera were
The free and protein amino acids of nine different genotypes of grass pea (Lathyrus sativus L.) seeds were analysed by HPLC with pre-column PITC (phenyl isothiocyanate) derivatisation. Among the free amino acids, homoarginine was quantitatively the most important (up to 0.8% seed weight) and stable
Plasma membrane alterations accompanying in vitro capacitation and acrosome reaction of goat spermatozoa were studied using lectin labelling, scanning electron microscopy, and freeze-fracture methods. Fluorescein isothiocyanate linked lectins namely; Canavalia ensiformis (ConA), Maclura pomifera
The zona pellucida glycoconjugate content of several marsupial species was investigated using differential lectin histochemistry. Ovaries from fat-tailed dunnarts, a southern brown bandicoot, grey short-tailed opossums, brushtail possums, ringtail possums, koalas and eastern grey kangaroos were
The expression of sugar residues on human epidermal cells was investigated by means of lectin binding, as a way of determining membrane structural changes occurring during the differentiation of the epidermis. Fourteen lectins of different sugar specificity were conjugated with fluorescein
The binding of the legume lectins Phaseolus vulgaris E4 and L4, Glycine max agglutinin, Vicia faba agglutinin, and Pisum sativum agglutinin to intact differentiated Caco-2 cells and to brush border membranes of differentiated Caco-2 cells was investigated, and their impact on the cellular metabolism
Endocervix and corresponding endometrium of women of reproductive age were studied histochemically with 13 fluorescein isothiocyanate-labeled lectins to delineate the differences between the epithelial cells in two anatomical sites. Lectin from Maclura pomifera (MPA), Ulex europaeus (UEA-I), Glycine
Sperm cell surface characteristics may serve as a useful diagnostic feature for the evaluation of seminal samples, but to date no useful analytical method(s) is available for their routine quantitative analysis. Fluorescein isothiocyanate-conjugated lectins, proteins with unique and specific
Ten fluorescein isothiocyanate (FITC)-linked lectins [Bauhimia purpurea, Concanavalin A, Dolichos biflorus (DBA), Griffonia simplicifolia I, Griffonia simplicifolia II, Maclura pomifera, Arachis hypogea (PNA), Glycine max, Ulex europaeus (UEA) and Triticum vulgaris agglutinin] have been used to
Fluorescein isothiocyanate-conjugated lectins include: concanavalin A (Con-A), Dolichos biflorus agglutinin (DBA), Griffonia simplicifolia-I (GS-I), Griffonia simplicifolia-II (GS-II), Arachis hypogaea agglutinin (PNA), Maclura pomifera agglutinin (MPA), Ricinus communis agglutinin-I (RCA-I),
The turkey sperm glycocalyx is known to contain residues of sialic acid, alpha-mannose/alpha-glucose, alpha- and beta-galactose, alpha-fucose, alpha- and beta-N-acetyl-galactosamine, monomers and dimers of N-acetyl-glucosamine, and N-acetyl-lactosamine. Potential changes in these carbohydrates
The zona pellucida (ZP) is the extracellular coat surrounding the mammalian egg. Numerous evidence supports the role of ZP carbohydrate residues as the specific sperm receptors. In this study we used lectins to study different distribution patterns of carbohydrate residues in the rat ZP, and to
A qualitative and quantitative analysis of lectin-binding sites has been undertaken on spermatozoa recovered from different regions of the epididymis of the goat (Capra indicus) using fluorescein isothiocyanate-linked lectins (Bauhinia purpurea BPA, Concanavalin A Con A, Dolichos biflorus DBA,