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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Allelopathic potential of Aulonemia aristulata (Doll) MacClure, a native bamboo of Atlantic Rain Forest

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Autor(es):
Grombone-Guaratini, M. T. [1] ; Jensen, R. C. [1] ; Cardoso-Lopes, E. M. [1] ; Torres, L. M. B. [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Inst Bot, Secao Ecol, BR-01061970 Sao Paulo - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: ALLELOPATHY JOURNAL; v. 24, n. 1, p. 183-190, JUL 2009.
Citações Web of Science: 6
Resumo

The effects of aqueous and ethanolic extracts of Aulonemia aristulata plant material were investigated on the germination and growth of Lactuca sativa and Sesbania virgata. The aqueous extract of leaves inhibited the germination of lettuce seeds, but not of Sesbonia virgata. The aqueous extract of leaves was partitioned affording an aqueous and n-butanolic fractions, which caused 173 +/- 10.4% and 94.6 +/- 1.3% germination inhibition of Lactuca sativa seeds. All extracts were monitored by TLC analysis using flavonoids, phenolic acid and giberellic acid compounds as standards. An HPLC profile of aqueous extracts of its leaves was prepared based on their retention time and increase of peaks after co-injection with a mixture of authentic samples of flavonoids and fenolics acids compounds. The HPLC data indicated that three compounds were involved in germination inhibitory effects based oil retention time as quercetin, rutin and ferulic acid, corroborating with literature information's. These preliminaries results showed that allelopathic interactions, between the bamboos A. aristulata and natives species, have been proposed as all explanation to bamboo-dominance in disturbed areas in Atlantic Forest. (AU)

Processo FAPESP: 05/51747-2 - Influência de Paradiolyra micrantha na regeneração de um fragmento urbano de Mata Atlântica
Beneficiário:Maria Tereza Grombone Guaratini
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 06/60724-9 - Influência de Parodiolyra micrantha (Poaceae: Bambusoideae) na regeneração de um fragmento urbano de Mata Atlântica
Beneficiário:Rodrigo Christino Jensen
Modalidade de apoio: Bolsas no Brasil - Programa Capacitação - Treinamento Técnico