This study explores the photosynthetic microbial colonization of rhyolitic ignimbrites in Lomas de Tilocalar, a hyper-arid region of the Atacama Desert, Chile. Colonization appeared in the form of a green layer a few millimeters beneath the ignimbrite surface. Some ignimbrite rocks revealed two distinct micromorphological areas of identical mineralogical and chemical composition but different textural properties. According to texture, colonization patterns varied in terms of the extension and depth of colonization. The diversity of photosynthetic microorganisms was assessed by denaturing gradient gel electrophoresis (DGGE) of the 23S rRNA gene and by generating clone libraries of the 16S rRNA gene. We observed a low diversity of photo...
© 2020 by the authors.Microorganisms can survive in extreme environments and oligotrophic habitats t...
The Atacama Desert, northern Chile, is one of the driest deserts on Earth and, as such, a natural la...
Deserts comprise the largest terrestrial biome, making up approximately one third of the Earth’s lan...
Received 23 September 2014This study explores the photosynthetic microbial colonization of rhyolitic...
13 páginas, 8 figuras y 3 tablesThe hyper-arid core of the Atacama Desert in Chile is considered the...
In hyperarid deserts, endolithic microbial communities colonize the rocks’ interior as a survival st...
Quartz stones are ubiquitous in deserts and are a substrate for hypoliths, microbial colonists of th...
The existence of microbial activity hotspots in temperate regions of Earth is driven by soil heterog...
Under extreme water deficit, endolithic (inside rock) microbial ecosystems are considered environmen...
Samples of Ignimbrite, a volcanic rock, from the Atacama Desert, when cut, evidenced a narrow gree...
The existence of microbial activity hotspots in temperate regions of Earth is driven by soil heterog...
Philosophiae Doctor - PhDThis thesis presents significant advances into the microbial ecology of hyp...
Studies of microbial biogeography are often convoluted by extremely high diversity and differences ...
The Atacama Desert has extreme environmental conditions that allow the development of unique microbi...
In dryland ecosystems species richness for all domains decreases with increasing aridity. Several en...
© 2020 by the authors.Microorganisms can survive in extreme environments and oligotrophic habitats t...
The Atacama Desert, northern Chile, is one of the driest deserts on Earth and, as such, a natural la...
Deserts comprise the largest terrestrial biome, making up approximately one third of the Earth’s lan...
Received 23 September 2014This study explores the photosynthetic microbial colonization of rhyolitic...
13 páginas, 8 figuras y 3 tablesThe hyper-arid core of the Atacama Desert in Chile is considered the...
In hyperarid deserts, endolithic microbial communities colonize the rocks’ interior as a survival st...
Quartz stones are ubiquitous in deserts and are a substrate for hypoliths, microbial colonists of th...
The existence of microbial activity hotspots in temperate regions of Earth is driven by soil heterog...
Under extreme water deficit, endolithic (inside rock) microbial ecosystems are considered environmen...
Samples of Ignimbrite, a volcanic rock, from the Atacama Desert, when cut, evidenced a narrow gree...
The existence of microbial activity hotspots in temperate regions of Earth is driven by soil heterog...
Philosophiae Doctor - PhDThis thesis presents significant advances into the microbial ecology of hyp...
Studies of microbial biogeography are often convoluted by extremely high diversity and differences ...
The Atacama Desert has extreme environmental conditions that allow the development of unique microbi...
In dryland ecosystems species richness for all domains decreases with increasing aridity. Several en...
© 2020 by the authors.Microorganisms can survive in extreme environments and oligotrophic habitats t...
The Atacama Desert, northern Chile, is one of the driest deserts on Earth and, as such, a natural la...
Deserts comprise the largest terrestrial biome, making up approximately one third of the Earth’s lan...