Antarctica plays a central role in regulating global climatic and oceanographic patterns and
is an integral part of global climate change discussions. The functioning of Antarctica's …

The Antarctic environment is extremely cold, windy and dry. Ozone depletion has resulted in
increasing ultraviolet-B radiation, and increasing greenhouse gases and decreasing …

The persistent low temperature that characterize polar habitats combined with the
requirement for light for all photoautotrophs creates a conundrum. The absorption of too …

Bryophytes are useful models for the study of plant evolution, development, plant–fungal
symbiosis, stress responses, and gametogenesis. Additionally, their dominant haploid …

The determination of physiological tolerance ranges of photosynthetic species and of the
biochemical mechanisms underneath are fundamental to identify target processes and …

Observed climate change in northern high latitudes is strongest in winter, but still relatively
little is known about the effects of winter climate change on tundra ecosystems. Ongoing …

Prasiola crispa, an aerial green alga, forms layered colonies under the severe terrestrial
conditions of Antarctica. Since only far-red light is available at a deep layer of the colony, P …

When bryophytes, lichens, eukaryotic algae, cyanobacteria, bacteria, and fungi live
interacting intimately with the most superficial particles of the soil, they form a complex …

Arctic ecosystems are increasingly exposed to extreme climatic events throughout the year,
which can affect species performance. Cryptogams (bryophytes and lichens) provide …

Water restriction is one of the major world limitations for growth and survival of
photosynthetic organisms, carbon assimilation and growth being the primary processes …