Effects of leaf extracts of Myrcia guianensis (Aubl.) DC. on growth and gene expression during root development of Sorghum bicolor (L.) Moench

Autor(es)

Franco, D. M. ^[1] ; Saldanha, L. L. ^[1] ; Silva, E. M. ^[1] ; Nogueira, F. T. S. ^[1] ; Dokkedal, A. L. ^[1] ; Santos, C. ^[1] ; Rolim De Almeida, L. F. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista UNESP, Dept Bot, Inst Biociencias, BR-18618970 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ALLELOPATHY JOURNAL; v. 35, n. 2, p. 237-248, APR 2015.
• Citações Web of Science: 4

Resumo

The allelopathic potential of leaf extracts from the medicinal plant Myrcia guianensis (Aubl.) DC. was studied in Petri dish bioassays on sorghum and determined the seed germination, germination rate index (GRI), root growth, secondary root number, the genes involved in root development (SHR, PHB, PHV and REV) and microRNA 166 that regulates these genes. The hydroalcoholic extract was more inhibitory than methanol extract (moderate inhibition) and aqueous extract at 25 and 100% concentration were least inhibitory. Application of higher dose of hydroalcoholic M. guianenesis leaf extracts on sorghum seeds, inhibited the root development and changed the expression of SHR and PHB genes and microRNA 166. This suggested that the expression of these genes could be indicator of allelopathic potential for inhibition of root development in sorghum. (AU)

• Processo FAPESP: 09/52237-9 - Fitoterápicos padronizados como alvo para o tratamento de doenças crônicas
• Beneficiário: Wagner Vilegas
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático