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Localization of the cotyledon reserves of Theobroma grandiflorum (Willd. ex Spreng.) K. Schum., T. subincanum Mart., T. bicolor Bonpl. and their analogies with T. cacao L. Rev. Bras. Bot.
Martini,Maria Helena; Lenci,Camila Gonçalves; Figueira,Antonio; Tavares,Débora de Queiroz.
Cotyledon mesophyll cell morphology and lipid and protein synthesis of T. grandiflorum, T. subincanum and T. bicolor were analyzed and compared with T. cacao. These species possess foliar cotyledons folded around the hypocotyl radicle axis, typical of Sterculiaceae. Fruit size, morphology and weight are very distinct amongst the four species and so are the respective seeds. The main axis of the T. grandiflorum and T. bicolor seeds measured about 30 mm, while T. subincanum and T. cacao seeds measured 17 mm and 26 mm respectively. The seed weights of T. grandiflorum, T. bicolor, T. subincanum and T. cacao were 11.6 g, 9.4 g, 2.1 g and 3.0 g, respectively. The cotyledon mesophylls of the four species contained mainly polysaccharides and lipid-protein reserve...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Comparative study; Histology; Reserves quantity; Theobroma.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000100013
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Polyphenolic cells and their interrelation with cotyledon cells in seven species of Theobroma (Sterculiaceae) Rev. Bras. Bot.
Martini,Maria Helena; Figueira,Antonio; Lenci,Camila Gonçalves; Tavares,Débora de Queiroz.
The amount of cotyledon polyphenolic cells varies extensively within the Theobroma species. The polyphenolic compounds of these cells play a protective role and furthermore have an important function in the development of chocolate flavour. The morphology of the polyphenolic cells of the mesophyll is described and the development of these idioblasts in Theobroma cacao L., T. subincanum Mart., T. obovatum Klotzsch ex Bernoulli, T. grandiflorum (Willd. ex Spreng.) K. Schum., T. microcarpum Mart., T. bicolor Bonpl. and T. speciosum Willd. ex Spreng analysed. The total polyphenolic content in the seeds as determined by spectrophotometry showed a variation of about forty times. The alive, transparent polyphenolic cells are scattered throughout the cotiledonary...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cotyledon mesophyll cells; Polyphenolic cells development; Seed; Theobroma.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000300006
Registros recuperados: 2
Primeira ... 1 ... Última
 

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