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| SILVA,Jonny Lucio Sousa; MOURA,Elisa Ferreira; ILKIU-BORGES,Fernanda; GALVÃO,Jessivaldo Rodrigues; FARIAS-NETO,João Tomé de; SILVA,Gisele Barata da; RÊGO,Marcela Cristiane Ferreira; CUNHA,Roberto Lisboa. |
| ABSTRACT Cassava is an important culture in Brazil and in the North of the country, and soft root rot has affected root production. The aim of this work was to identify root morphoanatomic and histochemical characters associated with root rot resistance. In areas with no occurrence of the disease, nine cassava genotypes were tested, four of which were resistant, and five were susceptible to root rot. Root harvest was carried out twelve months after sowing, and thickness of suber, suber and cortex, and secondary xylem were measured. Moreover, texture, suber cell layers, lignin content, and lignin monomers content of the portion suber and cortex were analyzed. Also, histochemical tests and scanning electron microscopy (SEM) analyses of the roots were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomy; Morphological characterization; Genetic breeding; Manihot esculenta. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000100001 |
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| PONTES,Lígia Cristine Gonçalves; MOURA,Elisa Ferreira; MOURA,Mônika Fecury; RODRIGUES,Simone de Miranda; OLIVEIRA,Maria do Socorro Padilha de; CARVALHO,José Edmar Urano de; THERRIER,Josette. |
| ABSTRACT The bacurizeiro (Platonia insignis Mart.) is a tree native to the Amazon whose fruit is much used in the gastronomy in the North and Northeast regions of Brazil. Due to its great economic potential for these regions, the species is being conserved in germplasm banks to support genetic breeding programs. The aim of this work was the molecular characterization of P. insignis accessions belonging to the germplasm bank of the Embrapa Eastern Amazon research unit using ISSR (Inter Simple Sequence Repeat) markers. Seventy-eight accessions of P. insignis belonging to 16 progenies were sampled in two different localities on Marajó Island, state of Pará, Brazil. Among the 16 progenies, seven were collected in Soure and nine in Salvaterra. The 78 accessions... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic diversity; Germplasm bank; Clusiaceae. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000400293 |
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