Antarctic Terrestrial Microbiology: Physical and Biological by Don A. Cowan

By Don A. Cowan

This publication brings jointly a number of the world’s best specialists within the fields of Antarctic terrestrial soil ecology, supplying a entire and fully up to date research of the prestige of Antarctic soil microbiology.

Antarctic terrestrial soils symbolize some of the most severe environments on the earth. as soon as regarded as principally sterile, it's referred to now that those varied and infrequently really good severe habitats harbor a really wide variety of other microorganisms.

Antarctic soil groups are quite uncomplicated, yet no longer unsophisticated. contemporary phylogenetic and microscopic reports have verified that those groups have good tested trophic structuring and play an important function in nutrient biking in those chilly and infrequently dry barren region ecosystems. they're strangely aware of swap and in all probability delicate to climatic perturbation.

Antarctic terrestrial soils additionally harbor really good ‘refuge’habitats, the place microbial groups boost lower than (and inside) translucent rocks. those cryptic habitats provide special types for realizing the actual and organic ‘drivers’ of neighborhood improvement, functionality and evolution.

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Additional info for Antarctic Terrestrial Microbiology: Physical and Biological Properties of Antarctic Soils

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2005) and also rarely produce sexual fruiting structures (Connell et al. 2010; Onofri et al. 2007). In the second decade of the 21st century, identification of fungal isolates is almost entirely based on molecular sequence comparisons. Although this is advantageous in that isolate phylogeny can be compared more objectively between different research groups, it is becoming increasingly clear that identification is dependent on, in some cases, non-curated public databases of dubious reliability (Bidartondo et al.

Antarctica leaves (Rosa et al. 2009). Roots from both C. quitensis and D. antarctica were found to be colonized by so-called dark septate endophytes (DSE) on the Leonie Islands along the western coast of the Antarctic Peninsula (Upson et al. 2009), among other maritime and sub-Antarctic locations. These DSE isolates were found to be largely composed of fungi from the Helotiales order including the Leptodontidium, Rhizoscyphus, Tapesia, and Mollisia genera (Upson et al. 2008). 44 B. E. Arenz et al.

This is of course partly due to the lower latitude of most of the Peninsula, but it also benefits from a prevailing and relatively warm ocean current impacting from the west. This effect is especially strong on the western coast of the Antarctic Peninsula, which has many more ice-free locations than the eastern coast and has been described as having a maritime climate. These relatively warm and humid conditions allow soils on the Peninsula to support more abundant and diverse fungal communities then other ice-free locations on the continent.

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