| Abstract Detail
Secondary Metabolism - Afternoon Silva, Tania, M. S [1], Nascimento, Roberto J. B. [1], Agra, Maria de Fátima [1], Câmara, Celso Amorim [2]. Pattern Diversity of Flavonoid in Solanum Species from Brazil. THIS study involves a comparison of the flavonoid distribution pattern in twelve species of Solanum in Brazil. Of these, ten species (S. agrarium, S. crinitum, S. jabrense, S. hexandrum, S. leptostachys, S. paludosum, S. paraibanum, S. rhytidoandrum, S. stramoniifolium and Solanum sp.), belong to the various sections of the subgenus Leptostemonum and two species (S. asperum and S. stipulaceum ) belong to the subgenus Brevantherum , section Brevantherum. In the species of the subgenus Leptostemonum, methoxylated myricetin, quercetin, kaempferol, herbacetin and apigenin with only one species (S. crinitum yielding a glycoside of kaempferol were encontered. On the other hand, the species of section Brevantherum showed a pattern with two glycosides of kaempferol in addition to quercetin and kaempferol. Moreover, the presence of these compounds was investigated in trichomes from the aerial parts of four species (S. stramonifolium, S. paludosum, S. crinitum and S. paraibanum) of the subgenus Leptostemonum and in both species belonging to subgenus Brevantherum. The occurrence of flavonoid glycosides in the foliar trichomes is being reported for the first time in Solanum. The details of the flavonoid distribution pattern will be discussed. Financial support: CNPq, CAPES, IMSEAR and RENORBIO.
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1 - Universidade Federal da Paraíba, Laboratório de Tecnologia Farmacêutica, Cidade Universitária, Campus I, Caixa Postal 5009, João Pessoa, Paraíba, 58051-970, Brazil
2 - Universidade Federal Rural de Pernambuco, Departamento de Química, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil
Keywords:
Solanum
Section Brevantherum
Solanum subgenus Leptostemonum
flavonoids
trichomes.
Session: Poster-71
Location: Ballroom CD/Monona Terrace
Date: Tuesday, July 25th, 2006
Time: 8:00 AM
Abstract ID:417 |
