Field and laboratory experiments were designed to determine the differential growth and toxin response to inorganic and organic nitrogen additions in Pseudo-nitzschia spp. Nitrogen enrichments of 50 mM nitrate (KNO3), 10 mM ammonium (NH4Cl), 20 mM urea and a control (no addition) were carried out in separate carboys with seawater collected from the mouth of the San Francisco Bay (Bolinas Bay), ...

Kiwi (Apteryx: Struthioniformes) are a family of ratite birds confined entirely to New Zealand. Since 1813, at least ten species have been described. Recent taxonomy has accepted three species: A. owenii (little spotted kiwi), A. haastii (great spotted kiwi) and A. australis (brown kiwi). Apteryx australis has three subspecies: A. a. australis (South Island); A. a. mantelli (North Island); and ...

results in vitro analysis showed that the greater the concentration of the extract, the greater the cytotoxicity. conclusions the crude extract of p. australis might be cytotoxic at high concentrations as evaluated against the cell line. materials and methods the mtt cytotoxicity assay was performed on a 3t3 mouse fibroblast cell line to measure the in vitro cytotoxic activity of the crude form...

Zemacrosaldula, new genus, is described with Salda australis White, 1876, as type species, resulting in the following new combination Zemacrosaldula australis (White, 1876). Three new species are described: Zemacrosaldula kapekape new species, Z. whakarunga new species, Z. pangare new species. A revision of the taxonomy of all taxa is presented. Species are keyed. Morphological descriptions are...

the endocarp of celtis australis l. with hyrcanian forests of northern iran and arid mountains of northern africa ecotypes were studied considering macro and micro morphologic characteristics, using binocular and scanning electron microscope. the aim of this research was to evaluate the endocarp diversity in different ecological conditions. the results showed that celtis australis l. is bigger,...