Coffea Racemosa
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Resistance to bacterial halo blight in Arabica coffee lines derivative from the genotype C1195-5-6-2 under natural infection conditions
Abstract The aim of this study was to identify resistance to bacterial halo blight in Arabica coffee lines carrying Coffea racemosa genes. Eighteen Arabica coffee lines derivative from the genotype C1195-5-6-2, and the cultivars IAPAR 59 and IPR 99 were evaluated for resistance to bacterial halo blight in two trials carried out in field conditions, in Londri
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-03
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2. Aquaporins and the control of the water status in coffee plants
Six aquaporin (AQP) homologues were identified in three coffee species (Coffea arabica, C. Canephora, and C. racemosa), including four plasma membrane intrinsic proteins (PIP1;1, PIP1;2, PIP2;1, and PIP2;2) and two tonoplast intrinsic proteins (TIP1;1 and TIP1;2). In order to better understand the role of these genes in coffee, C. arabica cvs Catuaí and Mun
Theor. Exp. Plant Physiol.. Publicado em: 2013
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3. Marcadores microssatélites na análise de resistência ao bicho-mineiro em café arábica
O objetivo deste trabalho foi analisar genótipos de cafeeiro (Coffea arabica) resistentes ao bicho-mineiro (Leucoptera coffeella), com uso de marcadores microssatélites. Foram avaliados 66 locos, dos quais 63 foram obtidos do banco de sequências expressas (EST) de café. Esses locos foram amplificados em "bulks" de progênies F5 de 'Siriema' (C. arabica x
Pesquisa Agropecuária Brasileira. Publicado em: 2011-12
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4. Natural infection of several Coffea species and hybrids and Psilanthus ebracteolatus by the coffee ringspot virus (CoRSV)
Coffee ringspot is a minor coffee disease caused by the nuclear type of Brevipalpus mite-transmitted virus, Coffee ringspot virus (CoRSV). Recently outbreaks of the disease in some growing regions of the state of Minas Gerais, Brazil, were registered with qualitative and quantitative yield losses. Coffea arabica was the only species registered as natural hos
Scientia Agricola. Publicado em: 2011-08
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5. Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro
Objetivou-se, com o presente trabalho, verificar o efeito do extrato metanólico de Coffea racemosa Lour., espécie silvestre de cafeeiro portadora de resistência a uma das principais pragas da cultura cafeeira, o bicho-mineiro. Inicialmente, o extrato metanólico das folhas de C. racemosa foi pulverizado em mudas de cafeeiro Coffea arabica cv. Catuaí, em
Ciência e Agrotecnologia. Publicado em: 2011-04
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6. Sucrose metabolism during fruit development in coffea racemosa.
Sucrose is one of the compounds in the raw coffee bean that has been identified as an important precursor of coffee flavour and aroma. In order to increase our knowledge of sucrose metabolism in coffee species, sucrose and reducing sugar content were investigated in the fast fruit-ripening coffee species Coffea racemosa. Fruits were harvested regularly from
ANNALS OF APPLIED BIOLOGY. Publicado em: 2011
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7. Sucrose metabolism during fruit development in coffea racemosa.
Sucrose is one of the compounds in the raw coffee bean that has been identified as an important precursor of coffee flavour and aroma. In order to increase our knowledge of sucrose metabolism in coffee species, sucrose and reducing sugar content were investigated in the fast fruit-ripening coffee species Coffea racemosa. Fruits were harvested regularly from
ANNALS OF APPLIED BIOLOGY. Publicado em: 2011
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8. Conservação de sementes de Coffea arabica racemosa em banco de germoplasma.
2002
ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA. Publicado em: 2011
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9. Study of simple sequence repeat markers from coffee expressed sequences associated to leaf miner resistance.
The objective of this work was to identify expressed simple sequence repeats (SSR) markers associated to leaf miner resistance in coffee progenies. Identification of SSR markers was accomplished by directed searches on the Brazilian Coffee Expressed Sequence Tags (EST) database. Sequence analysis of 32 selected SSR loci showed that 65% repeats are of tetra-,
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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10. Study of simple sequence repeat markers from coffee expressed sequences associated to leaf miner resistance.
The objective of this work was to identify expressed simple sequence repeats (SSR) markers associated to leaf miner resistance in coffee progenies. Identification of SSR markers was accomplished by directed searches on the Brazilian Coffee Expressed Sequence Tags (EST) database. Sequence analysis of 32 selected SSR loci showed that 65% repeats are of tetra-,
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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11. Mapeamento cromossômico em espécies de Coffea L. (Rubiaceae)
O gênero Coffea L. (Rubiaceae) possui mais de 100 espécies, nativas das florestas tropicais da África e Madagascar. Coffea arabica L. é a espécie mais importante economicamente, autocompatível e a única tetraplóide do gênero com 2n = 44. As demais espécies são diplóides com 2n = 22 e autoincompatíveis. Estudos moleculares e de hibridação genô
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2010
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12. Ferritin gene expression and antioxidant response of two Coffea arabica cultivars exposed to iron and aluminium / Expressão de genes da ferritina e resposta antioxidante em duas cultivares de Coffea arabica expostas a ferro e aluminio
Ferritin is a protein capable to store iron (Fe) atoms in a nontoxic form, controlling the level of this metal in the cells. In humans, ferritin is able to accommodate aluminium (Al) atoms, avoiding its toxicity. Considering that Coffea arabica plants are able to grow well in acidic soils with high Al and suspension cells treated with this same metal showed
Publicado em: 2009