Fitotoxicidade de extratos etanólicos de frutos e folhas de Banisteriopsis oxyclada (A. Juss.) B. Gates sobre o crescimento de plantas daninhas

Biotemas

Maristela Imatomi²  Simoni Anese³  Sonia Cristina Juliano Gualtieri¹  Viviane de Cassia Pereira¹  Patricia Umeda Grisi¹ 

[1] Universidade Federal de São Carlos;Universidade Federal de São Carlos.;Instituto Federal do Mato Grosso - IFMT

关键词: Alelopatia;    Echinochloa crus-galli;    Euphorbia heterophylla;    Inibição;   

DOI  :  

学科分类：生物科学（综合）

来源: Universidade Federal de Santa Catarina * Centro de Ciencias Biologicas

【 摘 要 】

http://dx.doi.org/10.5007/2175-7925.2016v29n1p1This study aimed to evaluate the effect of ethanolic extract of leaves and fruits ofBanisteriopsis oxycladaon seedling growth of wild poinsettia and barnyardgrass. Crude ethanolic extract was prepared at a proportion of 100 g of dry plant matter for 500 mL of ethanol. Through this, the extracts were solubilized in buffer solution and dimethyl sulfoxide (DMSO), at the concentrations 10.0; 7.5; 5.0; and 2.5 mg/mL. The growth of roots, shoots, and seedling root metaxylem cells were evaluated. Ethanolic extracts of leaves and fruits ofB. oxycladainhibited root growth of barnyardgrass and wild poinsettia seedlings, with a concentration-dependent effect. Decreased shoot growth was observed only in wild poinsettia seedlings. Decreased root growth in wild poinsettia seedlings may be related to decreased elongation in metaxylem cells.Banisteriopsis oxycladashows phytotoxic properties and it may be regarded as an alternative to control the weeds under study, having natural products as a basis.

【 授权许可】

Unknown