Xanthoria

Is parietin a UV-B or a blue-light screening pigment in the lichen Xanthoria parietina?

General characteristics of arctic species and their adaptations in the context of changes in climate and ultraviolet-B radiation levels 2009

Lichens are extreme examples [104]: the moist thalli of such species as Xanthoria candelaria and Rhizoplaca melanophthalma fully tolerated gradual or rapid freezing to -196 °C, and even after being stored for up to several years, almost immediately resumed normal photosynthetic rates when warmed and wetted.

General characteristics of arctic species and their adaptations in the context of changes in climate and ultraviolet-B radiation levels 2009

The orange lichen Xanthoria turbinata is common and mostly grows on dead Salsola plants.

Succulent Karoo 2008

"These Xanthoria elegans lichens were flown on Expose-E and they are the best survivors we know," explains Demets.

PhysOrg.com - latest science and technology news stories 2010