Allelopathic effects of aqueous extracts of Aristoluchia esperanzae O.Kuntze on development of Sesamum indicum L. seedlings

作者：Gatti Ana Beatriz; Ferreira Alfredo Gui^*; Arduin Marcos; Gualtieri de Andrade Perez Sonia Cristina

来源：Acta Botanica Brasilica, 2010, 24(2): 454-461.

• &quot
• Papo-de-peru&quot
• allelopathy
• root growth
• xylem development
• savanna

(Allelopathic effects of aqueous extracts of Aristoluchia e.speranzae O.Kuntze on development of Sesamum indicum L. seedlings). Aristolochia e.speranzae is a climbing plant that occurs in the savanna regions of Brazil. The aim of this work was to identify the effects of aqueous extracts of A. esperanzae on germination, root growth and xylem cell development of sesame seedlings. Leaf and shoot extracts were prepared at concentrations of 1.5 and 3%. Extracts caused marked changes in germination and seedling growth with greatest inhibition produced by root extracts. Morphological changes and decreased growth and development of seedlings were also observed. The extracts of A. esperanzae caused a reduction of 50% in the size of root xylem cells and marked changes in the primary root and in the number of secondary roots.

• 出版日期2010-6