The genus Croton belongs to the family Euphorbiaceae and comprises well over 1300 species growing as trees, shrubs, and herbs in tropical and subtropical regions of both hemispheres [1]. One of its species is Croton sparsiflorus (syn. C. bonplandianus) which is a shrub growing in sandy clay soil in Asia and South America [2]. It is used as a potent hypotensive agent [3] and for the treatment of...

Various species of common box (Buxus) are cultivated in the Arboretum of the Slovak Academy of Sciences in Mlyňany under the same soil and climatic conditions; consequently, the examination of alkaloids produced by those plants is of chemotaxonomical importance. From this locality we investigated so far alkaloids from Buxus sempervirens L.[l,2], B. microphylla SIEB, et ZUCC. var. sinica REHD. e...

The phytoplankton in coastal regions are responding to constant environmental changes, thus the use of proxies derived from situ frequent time-series observations and validated traditional microscopic or pigment methods can be a solution for detecting rapid responses community dynamics succession. In this study, we combined high-frequency (every 30 min May September 2017) optical hydrographic d...

Fungi release wide spectrum of volatile organic compounds (VOCs) that belong to several chemical groups with different biochemical origins such as monoterpenes, sesquiterpenes, alcohols, aldehydes, aromatic compounds, esters, furans, ketones, sulfur and nitrogen compounds. Trichoderma species are the most studied fungal biocontrol agents and are successfully used as biofungicides and biofertili...

The Asteraceae, one of the largest families among angiosperms, is chemically characterised by the production of sesquiterpene lactones (SLs). A total of 1,111 SLs, which were extracted from 658 species, 161 genera, 63 subtribes and 15 tribes of Asteraceae, were represented and registered in two dimensions in the SISTEMATX, an in-house software system, and were associated with their botanical so...

The genus Laurencia(Rhodomelaceae), a complex group, has 285 species and infraspecific names. Identification and taxonomy of these taxa, mainly has been based on flexible morphological characters which have led to a complicated taxonomy in this group. Nowadays, taxonomical study of this group has changed a lot by using reproductive characters, anatomical differences and modern...