Formation of Magnesium Carbonates on Earth and Implications for Mars. [PDF]
J Geophys Res Planets, 2021 Abstract Magnesium carbonates have been identified within the landing site of the Perseverance rover mission. This study reviews terrestrial analog environments and textural, mineral assemblage, isotopic, and elemental analyses that have been applied to establish formation conditions of magnesium carbonates.
Scheller EL +12 more
europepmc +2 more sources
Chironomus alchichica sp. n. (Diptera: Chironomidae) from Lake Alchichica, Mexico.
Zootaxa, 2017 Morphological analysis of all developmental stages (except female), mitochondrial DNA sequences from cytochrome c oxidase subunit I (cox1) and cytological analysis of the polytene chromosomes were used to describe a new species of Chironomus found in the
R. Acosta +5 more
semanticscholar +5 more sources
20 Years of Global Change on the Limnology and Plankton of a Tropical, High-Altitude Lake
Diversity, 2022 The present long-term (1993–2013) study was aimed at identifying the effects of global change on the environmental characteristics and the plankton community of the tropical, high-altitude Lake Alchichica, Puebla, Mexico.
Javier Alcocer +7 more
doaj +2 more sources
Alkaline saline lakes: A chemical evolution experiment evaluating the stability of formaldehyde in an aqueous saline environment [PDF]
HeliyonFormaldehyde condensation in the presence of a mineral catalyst and under alkaline conditions is considered to be a ''messy'' chemical system due to its dependence on the complex chemical equilibrium between the reaction intermediates, which has a ...
Claudio Alejandro Fuentes-Carreón +3 more
doaj +2 more sources
16S rDNA-based analysis reveals cosmopolitan occurrence but limited diversity of two cyanobacterial lineages with contrasted patterns of intracellular carbonate mineralization [PDF]
Frontiers in Microbiology, 2014 Cyanobacteria are mainly thought to induce carbonate precipitation extracellularly via their photosynthetic activity combined with the nucleation potential of exopolymeric substances. The discovery in microbialites of the alkaline lake Alchichica (Mexico)
Marie eRagon +5 more
doaj +2 more sources
Metagenome-based diversity analyses suggest a significant contribution of non-cyanobacterial lineages to carbonate precipitation in modern microbialites [PDF]
Frontiers in Microbiology, 2015 Cyanobacteria are thought to play a key role in carbonate formation due to their metabolic activity, but other organisms carrying out oxygenic photosynthesis (photosynthetic eukaryotes) or other metabolisms (e.g.
Purificacion eLopez-Garcia
doaj +2 more sources
Alkaline phosphatases in microbialites and bacterioplankton from Alchichica soda lake, Mexico. [PDF]
FEMS Microbiology Ecology, 2014 Dissolved organic phosphorus utilization by different members of natural communities has been closely linked to microbial alkaline phosphatases whose affiliation and diversity is largely unknown. Here we assessed genetic diversity of bacterial alkaline phosphatases phoX and phoD, using highly diverse microbial consortia (microbialites and ...
P. Valdespino-Castillo +5 more
semanticscholar +3 more sources
Ciliate food vacuole content and bacterial community composition in the warm-monomictic crater Lake Alchichica, México. [PDF]
FEMS Microbiology Ecology, 2012 To evaluate trophic relationships between ciliates and bacterioplankton during the stratification period in a lake, samples from three different layers [the upper part of the metalimnion (UM), the base of the metalimnion (BM) and the hypolimnion] were studied. The autotrophic picoplankton numbers, phylogenetic composition of heterotrophic picoplankton (
Fernando Bautista-Reyes, Miroslav Macek
semanticscholar +3 more sources
Journal of Limnology, 2022 The consistent warming of tropical lakes at all depths causes rapid development and long persistence of seasonal hypoxia in the hypolimnion, which greatly reduces the biodiversity of hypolimnetic benthic invertebrates. Full mixing of the water column in
Javier Alcocer +5 more
doaj +1 more source
Freshwater Biology, Volume 68, Issue 11, Page 1818-1838, November 2023., 2023 Abstract Rincon de Parangueo (RP) is a Quaternary maar crater located in the Michoacan‐Guanajuato Volcanic Field in central Mexico. Like other volcanic craters in the region, the central part was occupied by an endorheic lacustrine system. As a consequence of extensive groundwater extraction, the perennial lake started a gradual desiccation process and
Janet Sánchez‐Sánchez +6 more
wiley +1 more source