UeberSenecio erraticus Bertol

Portuguese hosts for Ornithodoros erraticus ticks.

The hematophagous soft tick Ornithodoros erraticus feeds nocturnally on multiple warm-blooded vertebrate hosts. This tick is often found living buried in the soil of traditional pigpens. O. erraticus is an important infectious disease vector both for humans and animals. In the Iberian Peninsula, this tick serves as the vector of human tick-borne relapsing fever caused by the spirochete Borrelia...

Leaf anatomy of Araucaria angustifolia (Bertol.) Kuntze (Araucariaceae)

(Leaf anatomy of Araucaria angustifolia (Bertol.) Kuntze (Araucariaceae)). Immature and mature leaves of juvenile and adult plants of Araucaria angustifolia (Araucariaceae) were observed with the objective of updating the morphoanatomical data of the leaves of this species, which were restricted to basic descriptions in previous studies. The observations, made in optical allowed to establish an...

Genetic structure of Culex erraticus populations across the Americas.

Culex erraticus (Dyar & Knab) is a potential competent vector for several arboviruses such as Eastern and Venezuelan equine encephalitis viruses and West Nile virus. It therefore may play a role in the maintenance and spread of viral populations in areas of concern, including the United States where it occurs in >33 states. However, little information is available on potential barriers to movem...

Présence en iran d'Ornithodorus erraticus (lucas 1849)

Antibacterial and Cytotoxic Activity of Juniperus Indica Bertol from Nepalese Himalaya

Antimicrobial and cytotoxic activity of petroleum ether, ethyl acetate and methanol extracts from Juniperus indica Bertol were evaluated. The extracts screened for their antibacterial activity against human pathogenic bacterial strains, Staphylococcus aureus, Escherichia coli and Klebsiella pneumoniae. All the fractions presented antimicrobial activity with variable strengths to all of the test...