The chemical composition of Matricaria chamomilla L. and Nepeta cataria L. essential oils was determined by GC-MS on an apolar stationary phase by comparison of the characteristic fragmentation patterns with those of the Wiley 275L database. The GC-MS chromatograms were compared with those obtained by fast GC equipped with a direct resistively heated column (Ultra Fast Module 5% phenyl, 5 mx 0....

ABSTRACT Background Olfactory communication in cats is of major importance. It is rather complex and includes pheromone-driven and classical odour-based communication. Cats use various marking behaviours to transmit pheromone signals: appeasing markings that have a calming effect and alarm markings that can exacerbate stress. On the other hand, classical odours could possibly complete, modify, ...

New data on 10 adventive plant species are given. Two and one subspecies (Atriplex hortensis, Solanum nigrum subsp. schultesii, Nepeta cataria) new for the Republic of Buryatia. Five two interspecies hybrids (Arctium × mixtum, Galinsoga parviflora, Hesperis pycnotricha, Lactuca serriola, Medicago varia, Onobrychis viciifolia, Viola tricolor) recorded first time in Ulan-Ude city its neighborhood.