
Authors: H.F. Hoenigsberg* and C. Sanabria
It is a challenge to understand how development emerged as a mechanism to dismantle and dismiss the intromission of foreign parasites in order to consolidate a higher-level multicellular unit of selection where more heritable variations in fitness, required for complex organization, can be procured. Levels in biological hierarchy genes, networks of genes,.. Read More»
Authors: S.X. Chen J.N. Du L.N. Hao C.Y. Wang Q. Chen Y.X. Chang
Seven different commercial F1 hybrids and two F2 populations were evaluated by multiplex PCR to identify plants that are homozygous or heterozygous for Ty-1 and Mi, which confer resistance to tomato yellow leaf curl disease and root-knot nematode, respectively. The Ty-1 and Mi markers were amplified by PCR and identified by digestion of the amplicons with th.. Read More»
Authors: K.R. Boldrini1, P.L. Micheletti1, P.H. Gallo1, A.B. Mendes-Bonato1,M.S. Pagliarini1 and C.B. Valle2
Brachiaria humidicola, a species adapted to poorly drained and infertile acid soils, is widely used throughout the tropics. Cytological characterization of 54 accessions of B. humidicola for breeding purposes revealed 2n = 36, 42, and 54 chromosomes. One accession (H030), with 2n = 42 chromosomes, showed a different meiotic behavior. In most accessions fr.. Read More»
Authors: G. Sar�±kam�±��1, F. Ya��ar2, M. Bak�±r3, K. Kazan4 and A. Erg�¼l3
Green bean genotypes collected from eastern Turkey were characterized using simple sequence repeat (SSR) markers and morphological traits. Among 12 SSR markers, 10 produced successful amplifications and revealed DNA polymorphisms that were subsequently used to assess genetic relatedness of the genotypes. Based on the number of alleles generated and the pr.. Read More»
Authors: C.B.M. Cerqueira-Silva1, C.B. Cardoso-Silva2, L.D.H.C.S. Concei�§�£o3, J.V.A. Nonato2, A.C. Oliveira2 and R.X. Corr�ªa3
We investigated seven distance measures and 14 similarity coefficients in a set of observations of variables of the ‘yellow’ passion fruit plant (Passiflora edulis Sims), submitted to multivariate analyses (distance, projection and grouping). Fourteen genotypes were characterized, based on DNA amplification with 16 random amplif.. Read More»
Authors: F.B.M. Mohr, C. Lermen, Z.C. Gazim, J.E. Gon�§alves, O. Alberton
Ocimum gratissimum L. or clove basil, belongs to the Lamiaceae family, has various desirable uses and applications. Beyond its aromatic, seasoning, and medicinal applications, this plant also has antimicrobial activity. This study was aimed at assessing the antifungal activity, yield, and composition of the essential oil (EO) .. Read More»
Authors: A.M. Couto, P.E. Teodoro, P.F. Trugilho
Path analysis has been used for establishing selection criteria in genetic breeding programs for several crops. However, it has not been used in eucalyptus breeding programs yet. In the present study, we aimed to identify the wood technology traits that could be used as the criteria for direct and indirect selection of eucalyp.. Read More»
Authors: C.S. de Abreu, J.E.F. Figueiredo, C.A. Oliveira, V.L. dos Santos, E.A. Gomes, V.P. Ribeiro, B.A. Barros, U.G.P. Lana and I.E. Marriel
In the present study, we demonstrated the in vitro activity of endophytic phosphate-solubilizing bacteria (PSB). Fifty-five endophytic PSB that were isolated from sap, leaves, and roots of maize were tested for their ability to solubilize tricalcium phosphate and produce organic acid. Partial sequencing of the 16S rRNA-encodin.. Read More»
Authors: C.T. Liu, X.J. Yuan, G.C. Gao
Alendronate regulates the activity of osteoclasts and healing of osteoporosis. This study investigated the effect of alendronate on bone healing and changes in the levels of cytokines. Bilateral ovaries of 10 adult female rabbits were removed surgically in aseptic condition to establish the animal model of osteoporosis. Five rabbits in group A were treate.. Read More»
Authors: V. Andrade-Souza, A.-A.F. Almeida, R.X. Corr�ªa, M.A. Costa,\M.S. Mielke and F.P. Gomes
We examined leaf CO2 assimilation and how it varied among species within the orchid genus Cattleya. Measurements of CO2 assimilation and maximum quantum yield of PS II (Fv/Fm) were made for mature leaves of nine species using a portable system for photosynthesis measurement and a portable fluorometer. Leaf area was measured with an area meter, and th.. Read More»