The essential oil from the rhizomes of Pavonia odorata Willd was extracted in an yield of 0.2% by hydrodistillation, and screened for antibacterial and antifungal activity against ten bacteria and thirteen fungi using paper disc agar diffusion technique. The oil was found to inhibit the growth of Staphylococcus aureus, Diplococcus pheumoniae, Escherichia coli and Klebsiella sp at 0.55 concentra...

The essential oil from the dried leaves of Chromolaena odorata (L.) R.M. King & H. Rob. was obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry (GC-MS). The major components were α-pinene (42.2%), β-pinene (10.6%), germacrene D (9.7%), β-copaen-4α-ol (9.4%), (E)caryophyllene (5.4%), and geijerene/pregeijerene (7.5%). The oil was screened for antimicrobial activity...

Ligname, Dioscorea spp. (L) est une importante denree alimentaire qui occupe place primordiale dans le systeme agricole en Cote dIvoire. Cette plante cependant sujette a plusieurs maladies au cours de sa culture et pendant conservation parmi lesquelles celles causees par divers champignons. Ainsi, les pertes occasionnees pourritures des tubercules conservation, constituent un risque majeur pour...

The invasion of Chromolaena odorata (L.) R.M. King and H.Rob. affects microbial community structure, but seldom do studies focus on bacterial diversity in the rhizosphere C. from different habitats. To reveal impacts communities habitats, functional groups bacteria were compared soil collected three habitats: abandoned land, a mature eucalyptus forest (eight-years), young (one-year). In this st...

ABSTRACT This study aimed to determine the basic density of wood and simulate performance flooring produced with from five tropical species: Dipteryx odorata (Cumaru), Handroanthus spp. (Ipê), Hymenaea Courbaril (Jatobá), Astronium Lecointei (Muiracatiara), Bowdichia virgilioides (Sucupira-Preta). Falling steel sphere, static dynamic friction, indentation caused by loads applied in small areas,...

The influence of wood components and cellulose crystallinity on the kinetic degradation of different wood species has been investigated using thermogravimetry. Four wood species were studied: Pinus elliottii (PIE), Eucalyptus grandis (EUG), Mezilaurus itauba (ITA) and Dipteryx odorata (DIP). Thermogravimetric results showed that higher extractive contents in the wood accelerate the degradation ...

Myrmecochorous diaspores bear a nutrient-rich appendage, the elaiosome, attractive to ant workers that retrieve them into the nest, detach the elaiosome and reject the seed intact. While this interaction is beneficial for the plant partner by ensuring its seed dispersal, elaiosome consumption has various effects -positive, negative or none - on ants' demography and survival, depending on both t...