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Blown by the wind: the ecology of male courtship display behavior in orchid bees
(Ecological Society of America, 2017-02-01)
Many insects rely on chemical signals to transmit precise information on the location, identity, and quality of potential mates. Chemical signals are often broadcasted at sites with physical properties that maximize signal ...
A botanical extract of Souroubea sympetala and its active principle, betulinic acid, attenuate the cortisol response to a stressor in rainbow trout, Oncorhynchus mykiss
(Elsevier, 2016-09-28)
The capacity of the traditional anxiolytic plant, Souroubea sympetala, and its bioactive principle, betulinic acid (BA), to lower cortisol levels in rainbow trout, Oncorhynchus mykiss, was investigated. Effects at the level ...
Water-Soluble Anions in PM10 Samples Collected in the Metropolitan Area of Costa Rica: Temporal and Spatial Variations
(MDPI journals, 2021-09-28)
The concentrations of water-soluble anions present in PM10 collected from ambient air in
four sites of Costa Rica’s greater metropolitan area (GAM) were analyzed. Samples were collected
over a 24-h period for three days ...
Climatic and edaphic controls over tropical forest diversity and vegetation carbon storage
(Springer Nature, 2020-03-19)
Tropical rainforests harbor exceptionally high biodiversity and store large amounts of carbon in vegetation biomass. However, regional variation in plant species richness and vegetation carbon stock can be substantial, and ...
Producción de enzimas ligninolíticas y biodegradación del herbicida diuron por hongos de la pudrición blanca colectados en Costa Rica, cultivados sobre rastrojo de piña
(Universidad Nacional (Costa Rica). Escuela de Ciencias Ambientales, 2017)
En esta investigación se evaluó la capacidad de dos cepas de hongos basidiomicetos de la pudrición blanca (2922-A y 2922-B) previamente aislados de bosques costarricenses, para producir enzimas lignocelulolíticas lacasa y ...
Efficacy of Souroubea-Platanus Dietary Supplement Containing Triterpenes in Beagle Dogs Using a Thunderstorm Noise-Induced Model of Fear and Anxiety
(Multidisciplinary Digital Publishing Institute, 2021-04-03)
A novel botanical dietary supplement, formulated as a chewable tablet containing a
defined mixture of Souroubea spp. vine and Platanus spp. Bark, was tested as a canine anxiolytic
for thunderstorm noise-induced stress ...
Relations Between Bulk Precipitation, PM10 Composition and Meteorological Conditions in the Metropolitan Area of Costa Rica
(The Open Atmospheric Science Journal, 2012-02-06)
Concentrations of inorganic ions (Cl -, H +, SO 4 2-, NO 3 -, NH 4 +, Na +, K +, Ca 2+, Mg 2+) and metals (V, Ni, Cu, Pb, Cr Mn, Al, Fe) in bulk precipitation and PM 10 samples collected in the metropolitan area of Costa ...
New Bruce-ladder multiplex PCR assay for the biovar typing of Brucella suis and the discrimination of Brucella suis and Brucella canis
(Revista de Microbiología Veterinaria, 2011-06-28)
Rapid and specific identification of Brucella suis at the biovar level is necessary because
some of the biovars that infect animals are pathogenic for humans. None of the molecular
typing methods described so far are ...
Inhibition of human pathogenic fungi by ethnobotanically selected plant extracts
(Deutschsprachige Mykologische Gesellschaft, 2003-02-14)
In this study, 36 extracts derived from 29 plant species selected using an ethnobotanical approach were tested for antifungal activity against a taxonomically diverse group of 13 human pathogenic fungi. We compared the ...
Antifungal Saponins from the Maya Medicinal Plant Cestrum schlechtendahlii G. Don (Solanaceae)
(Wiley, 2015-12-15)
Bioassay-guided fractionation of the crude extract (80% EtOH) of the leaves of Cestrum schlechtendahlii, a plant used by Q'eqchi' Maya healers for treatment of athlete's foot, resulted in the isolation and identification ...