Wind pollination was experimentally demonstrated in Linanthus parviflorus (Polemoniaceae), a predominantly beefly-pollinated, self-incompatible annual. Seed set in plants enclosed in mesh tents that excluded pollinators but allowed airborne pollen flow provided evidence for wind pollination, and the extent of seed set due to wind pollination was compared to that in open-pollinated controls and ...

Pogostemon cablin Benth's leaves, which belong to the Lamiaceae family, are used make patchouli essential oil (PEO). Sesquiterpenes main compounds in oil. Antibacterial, antifungal, antiviral, antiemetic, and anti-inflammatory activities just a few of many pharmacological actions that well-known. In this investigation, cefuroxime (CEF), moxifloxacin (MOX), clarithromycin (CLA), fluconazole (FLU...

Trypanocidal constituents of Pogostemon cablin were investigated. Activity guided isolation of the acetone extract resulted in isolation of three new sesquiterpene hydroperoxides 1-3, together with a known sesquiterpene, patchouli alcohol (4). In vitro minimum lethal concentrations of the hydroperoxides 1-3 against epimastigotes of Trypanosoma cruzi were 0.84 microM (1), 1.7 microM (2) and 1.7 ...

Recurrent fires impose a strong selection pressure in many ecosystems worldwide. In such ecosystems, plant flammability is of paramount importance because it enhances population persistence, particularly in non-resprouting species. Indeed, there is evidence of phenotypic divergence of flammability under different fire regimes. Our general hypothesis is that flammability-enhancing traits are ada...

Pogostemon auricularius is an aromatic herb belonging to the family Lamiaceae. Objectives: In the present study we have utilized the Allium cepa root tip meristem model to evaluate the cytotoxic and antimitotic potential of P. auricularius. Methods: The roots of Allium cepa were exposed to different concentrations of the aqueous leaf extracts (0.01%, 0.05%, 0.1% and 0.5%), for four different ti...