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EVALUATION OF QUANTITATIVE TRAITS RELATED WITH THE VEGETATIVE GROWTH AMONG ARABICA COFFEE CULTIVARSThe objective of this study was to verify the relationship between quantitative traits related with the vegetative growth in cultivars of short height of arabic coffee. The stem diameter is strong and positively correlated with length of plagiotropic branches for growth rate. When evaluated at 12 months, it was correlated and negative and highly with the canopy diameter and the length of plagiotropic branches was correlated negatively to number of secondary branches and positively with number of nodes of plagiotropic branches.

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O objetivo deste trabalho foi analisar a diversidade genética de 22 acessos de feijão-fava (Phaseolus lunatus L.) oriundos dos Estados do Ceará, Paraíba e Pernambuco, que compõem a Coleção de Germoplasma do Departamento de Agronomia da UFRPE, através de marcadores RAPD e caracterizar quatorze desses genótipos através de marcadores morfológicos. Para caracterização da variabilidade genética foram utilizados 60 locos polimórficos. Pela análise de agrupamento verificou-se a formação de dois grupos, quatro subgrupos e elevada variabilidade genética entre os acessos. Os acessos mais próximos geneticamente, foram FA-01 e FA-02, provenientes do Ceará, com grau de similaridade de 85,4%, e os mais distantes, foram FA-07 e FA-20 oriundos do Ceará e Pernambuco, respectivamente, com grau de similaridade de 35,9%. Quanto à caracterização morfológica, observou-se que o genótipo FA-13 se destacou dos demais, por apresentar maiores valores no peso das sementes, no número de sementes por vagem, comprimento e largura da vagem, enquanto o genótipo FA-16 apresentou menores valores de peso de 100 sementes, sementes muito pequenas, menor número de vagem por planta, menor comprimento de vagem e menor produção de semente por planta.

BackgroundThere is a functional decline of endothelial- dependent vasodilatation in the aging process. The aims of this study were to investigate if various microcirculatory parameters could correlate to anthropometrical variables, oxidative stress and inflammatory biomarkers in successful aging and compare the results to young healthy controls.MethodsHealthy elderly women (HE, 74.0 ± 8.7 years, n = 11) and young controls (YC, 23.1 ± 3.6 years, n = 24) were evaluated through nailfold videocapillaroscopy (NVC), venous occlusion plethysmography (VOP) and laboratorial analysis. Functional capillary density (FCD) and diameters, maximum red blood cell velocity (RBCVmax) during the reactive hyperemia response/RBCVbaseline after 1 min arterial occlusion at the finger base, time to reach RBCVmax were determined by NVC, peak increment of forearm blood flow (FBF) during the reactive hyperemia response (%Hyper) and after 0.4 mg sublingual nitroglycerin (%Nitro) by VOP and lipidogram, fibrinogen, fasting and postload glucose, oxidized LDL-cholesterol (oxLDL), sICAM, sVCAM, sE-Selectin, interleukines 1 and 6 and TNF-α by laboratorial analysis. Correlations and linear multiple regression (LMR) between %Hyper, %Nitro, microcirculatory parameters, oxidative stress and inflammatory biomarkers were investigated.ResultssVCAM, sE-Selectin and oxLDL were higher and RBCVmax/RBCVbaseline and %Hyper lower in HE, while %Nitro and FCD remained unchanged. Fibrinogen, LDL-cholesterol, oxLDL correlated negatively to %Hyper while sVCAM correlated negatively to %Hyper and RBCVmax/RBCVbaseline. Healthy aged women presented dilated capillaries with sustained perfusion and endothelial dysfunction with preserved vascular smooth muscle reactivity. Fibrinogen, LDL-cholesterol, oxidized-LDL and sVCAM correlated negatively to endothelial function but not to microcirculatory parameters. Oxidized-LDL and sVCAM could determine %Hyper through LMR.ConclusionOxidized-LDL and sVCAM might be used as endothelial dysfunction biomarkers for elderly with normal cardiovascular risk factors.