A new briarane-type diterpenoid, named 2-acetoxyverecynarmin C, was isolated from the methanolic extract of an octocoral, Pennatula aculeata, that exhibited cyclooxygenase (COX) inhibitory activity. The structure of the compound was elucidated by ESI-HRMS, 1D and 2D NMR spectroscopy and comparison of the measured spectral data with those reported in the literature. The relative stereochemistry ...

Testate amoebae are common single-celled eukaryotic organisms in aquatic ecosystems. Despite their important role in these ecosystems, and their potential as bioindicators and paleoindicators, they remain poorly studied in Mexico. The major objectives of this study were to: 1) increase knowledge of testate amoebae in Mexico’s tropical lakes, and 2) create a catalog of high-quality scanning elec...

Several palms species provide an important habitat for triatomines and associate vertebrates in tropical America. The objective of this work is to identify the triatomine species living in the palms of rural areas in the Province of Corrientes, and to estimate the potential epidemiological risk they represent for the residents of nearby houses. The survey was carried out in a palm community in ...

There is little knowledge about testate amoebae in lakes and their responses to volcanic eruptions. To address this gap, we studied the paleoecology of these protists a sediment record from Laguna Verde, lake located east southern Patagonian Ice Field, Santa Cruz Province, Argentina. The under influence eruptions Lautaro Volcano, Chile, ~ 42 km WNW Verde. We evaluated response 11 amoeba morphos...

Meistera aculeata (Roxb.) Škorničk. & M.F.Newman (Zingiberaceae, subfamily - Alpinioideae) a lesser known species, has been located from the Palakkad (Palghat) Gap region in Walayar Hill ranges of southern Western Ghats and reported here as an addition to flora Kerala. A detailed taxonomic description along with photographs are provided.