Differences in diterpenoid diversity reveal new evidence for separating the genus from .

Covering: up to 2019The large and medicinally important tropical plant genus (Lamiaceae) was recently split into three separate genera on the basis of molecular and morphological evidence; , and . We found striking differences between the diterpenoids which strongly support this taxonomic split. is characterised by abietanes oxygenated at C-14 such as royleanones, spirocoleons and acylhydroquinones, which could be useful chemotaxonomic markers to distinguish this genus from In contrast, the abietanes in lack C-14 oxygenation, but are often acylated with unusual acids.

Antibacterial compounds from the mushroom Ganoderma colossum from Nigeria.

Three colossolactones (colossolactone E, colossolactone B and 23-hydroxycolossolactone E) were isolated and characterized from an n-hexane:dichloromethane (2:7) extract of Ganoderma colossum using chromatographic techniques. The antimicrobial activity of the three compounds was then tested against Gram-positive and Gram-negative bacteria. The activity was evaluated by the thin-layer chromatography agar overlay method.

Behavioural characterization of four endemic Stachys taxa.

We performed a basic behavioral characterization of methanol extracts of four Balkan endemic Stachys taxa: S. anisochila (SA), S. beckeana (SB), S.