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Baldwin, C.L.Goddeeris, M.Morrison, W. Ivan[Bovine helper T-cell clones specific for lymphocytes infected with Theileria parva (Muguga)]Bovine helper T-cell clones specific for lymphocytes infected with Theileria parva (Muguga)
Hirumi, H.Hirumi, K.Doyle, J.J.Cross, G.A.M.[In vitro cloning of animal-infective bloodstream forms of Trypanosoma brucei]In vitro cloning of animal-infective bloodstream forms of Trypanosoma brucei
Baldwin, C.L.Iams, K.P.Brown, W.C.Grab, D.J.[Theileria parva: CD4+ helper and cytotoxic T-cell clones react with a schizont-derived antigen associated with the surface of Theileria parva-infected lymphocytes]Theileria parva: CD4+ helper and cytotoxic T-cell clones react with a schizont-derived antigen associated with the surface of Theileria parva-infected lymphocytes

Immunity to infection by the protozoan parasite Theileria parva in cattle is partially attributable to cytotoxic T cells, which kill lymphocytes infected with the schizont stage of the parasite. Here we evaluated five stocks of buffalo-derived T. parva lawrencei parasites and two stocks of cattle...


Kariuki, T.M.Grootenhuis, J.G.Dolan, T.T.Bishop, Richard P.Baldwin, C.L.[Immunization with Theileria parva parasites from buffaloes results in generation of cytotoxic T cells which recognize antigens common among cells infected with stocks of T. parva parva, T. parva bovis, and T. parva lawrencei]Immunization with Theileria parva parasites from buffaloes results in generation of cytotoxic T cells which recognize antigens common among cells infected with stocks of T. parva parva, T. parva bovis, and T. parva lawrencei
Ndoutamia, G.Moloo, S.K.Murphy, N.B.Peregrine, A.S.[Derivation and characterization of a quinapyramine-resistant clone of Trypanosoma congolense]Derivation and characterization of a quinapyramine-resistant clone of Trypanosoma congolense
Bishop, Richard P.Sohanpal, B.K.Morzaria, S.P.[Cloning and characterisation of a repetitive DNA sequence from Theileria mutans. Application as a species-specific probe]Cloning and characterisation of a repetitive DNA sequence from Theileria mutans. Application as a species-specific probe

About 70 million people obtain more than 500 cal per day from cassava roots. The crop is fundamental as food security of poor rural communities, but little is known about variability of root nutritional and quality traits. Roots from 2457 genotypes comprising landraces and improved clones, were s...


Chavez, Alba L.Sánchez, T.Jaramillo, GustavoBedoya Flores, JMEcheverry, JBolaños Vidal, E.A.Ceballos, H.Iglesias, C.A.[Variation of quality traits in cassava roots evaluated in landraces and improved clones]Variation of quality traits in cassava roots evaluated in landraces and improved clones

A major constraint for incorporating new traits into cassava using biotechnology is the limited list of known/tested promoters that encourage the expression of transgenes in the cassava’s starchy roots. Based on a previous report on the glutamic-acid-rich protein Pt2L4, indicating a preferential ...


Beltrán Giraldo, Jorge AlonsoPrias, MAl-Babili, S.Ladino Franco, YJLópez, D.Beyer, PeterChavarriaga Aguirre, PaulTohme, Joseph M.[Expression pattern conferred by a glutamic acid-rich protein gene promoter in field-grown transgenic cassava (Manihot esculenta Crantz)]Expression pattern conferred by a glutamic acid-rich protein gene promoter in field-grown transgenic cassava (Manihot esculenta Crantz)

Several species of double-stranded RNA (dsRNA) were found to occur in the cassava clone Secundina, which was thought to be virus- free. A large dsRNA molecule (6.6 x 106 Mr = relative molecular mass)(L-dsRNA) was shown to be graft, but not mechanically transmitted and occurred primarily in a nucl...


Gabriel, C.J.Walsh, RNolt, Barry L.[Postharvest root deterioration or vascular streaking of cassava clones (accessions and breeding lines) was evaluated with harvests at different ages (8 and 12 mo.), seasons (beginning and end of wet season), and locations (CIAT-Palmira, Carimagua, and Caribia in Colombia) to assess the effect of environmental factors on cassava genotypes. Vascular streaking was sensitive to any of these environmental factors. Genotype x location interaction was highly significant suggesting that final cv. selection should be carried out in each location. Genetic analysis carried out in one location suggested that inheritance of vascular streaking was, at least partly, controlled by additive factors and was quantitative rather than qualitative. Narrow sense heritability of 0.64 was obtained. Vascular streaking was highly and significantly correlated with root DM content in all the trials conducted during 7 yr. Since free recombination between resistance to vascular streaking and high root DM content may not be possible, the most acceptable balance between these 2 traits should be defined according to the use of product and edaphoclimatic condition of production area prior to selection program. (AS)]Postharvest root deterioration or vascular streaking of cassava clones (accessions and breeding lines) was evaluated with harvests at different ages (8 and 12 mo.), seasons (beginning and end of wet season), and locations (CIAT-Palmira, Carimagua, and Caribia in Colombia) to assess the effect of environmental factors on cassava genotypes. Vascular streaking was sensitive to any of these environmental factors. Genotype x location interaction was highly significant suggesting that final cv. selection should be carried out in each location. Genetic analysis carried out in one location suggested that inheritance of vascular streaking was, at least partly, controlled by additive factors and was quantitative rather than qualitative. Narrow sense heritability of 0.64 was obtained. Vascular streaking was highly and significantly correlated with root DM content in all the trials conducted during 7 yr. Since free recombination between resistance to vascular streaking and high root DM content may not be possible, the most acceptable balance between these 2 traits should be defined according to the use of product and edaphoclimatic condition of production area prior to selection program. (AS)

The leaf is the site of photosynthetic activities and crop productivity is controlled by the sizes and efficiency of leaves. Leaf development in cassava can be dependent on genetic makeup of the plant and it is sensitive to temperature. The aim of this study was to quantify the relationships betw...


Akparobi, S.Togun, A.Ekanayake, I.J.[Temperature effects on leaf growth of cassava (Manihot esculenta Crantz) in controlled environments]Temperature effects on leaf growth of cassava (Manihot esculenta Crantz) in controlled environments

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