Covering 1970–2001This review covers the functionally diverse type III polyketide synthase
(PKS) superfamily of plant and bacterial biosynthetic enzymes, from the discovery of …

Ethnopharmacological relevance Trees and shrubs of the genus Betula (Betulaceae) inhabit
various ecosystems in temperate and boreal climate zones of the northern hemisphere. The …

We analysed and compared the functioning of UV-B screening pigments in plants from
marine, fresh water and terrestrial ecosystems, along the evolutionary line of cyanobacteria …

The outer wall of pollen and spores, namely the exine, is composed of sporopollenin, which
is highly resistant to chemical reagents and enzymes. In this study, we demonstrated that …

The formation of the durable outer pollen wall, largely composed of sporopollenin, is
essential for the protection of the male gametophyte and plant reproduction. Despite its …

Bee pollen (pollen collected by honey bees) was collected in the high intensity ultraviolet
(UV) Sonoran Desert and analyzed by the DPPH (radical 2, 2-diphenyl-1-picryhydrazyl) …

Pollen identification and quantification are crucial but challenging tasks in addressing a
variety of evolutionary and ecological questions (pollination, paleobotany), but also for other …

Plants have profoundly moulded the Earth's climate and the evolutionary trajectory of life.
Far from being'silent witnesses to the passage of time', plants are dynamic components of …

Sporopollenin is highly cross-linked polymer composed of carbon, hydrogen, and oxygen
that is extraordinarily stable and has been found chemically intact in sedimentary rocks …

Anther cuticle and pollen exine act as protective envelopes for the male gametophyte or
pollen grain, but the mechanism underlying the synthesis of these lipidic polymers remains …