Crystalline water in gypsum is unavailable for cyanobacteria in laboratory experiments and in natural desert endolithic habitats
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F20%3A00536904" target="_blank" >RIV/86652079:_____/20:00536904 - isvavai.cz</a>
Result on the web
<a href="https://www.pnas.org/content/117/45/27786" target="_blank" >https://www.pnas.org/content/117/45/27786</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1073/pnas.2013134117" target="_blank" >10.1073/pnas.2013134117</a>
Alternative languages
Result language
angličtina
Original language name
Crystalline water in gypsum is unavailable for cyanobacteria in laboratory experiments and in natural desert endolithic habitats
Original language description
Huang et al. (1) describe a supposed mechanism of water extraction from gypsum by cyanobacteria sampled from endoliths inhabiting Ca sulfates in the Atacama Desert, and cultivated in the laboratory. The authors claim that the phase transformation from gypsum (CaSO4·2H2O) to anhydrite (CaSO4) (G→A) occurred under “dry conditions” in the contact zone between a “dry biofilm” and the gypsum, where only {011} planes of gypsum are transformed to anhydrite, supposedly providing water for cyanobacteria. This work (1) has a number of major conceptual problems, as follows. First, the authors show the presence of gypsum and/or anhydrite in the inoculated Ca sulfate samples using X-ray diffraction and, incompletely, by Fourier transform infrared spectroscopy techniques (2), and not by Raman (3) or transmission electron microscopy.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology
Result continuities
Project
<a href="/en/project/LM2015061" target="_blank" >LM2015061: CzeCOS</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Proceedings of the National Academy of Sciences of the United States of America
ISSN
0027-8424
e-ISSN
—
Volume of the periodical
117
Issue of the periodical within the volume
45
Country of publishing house
US - UNITED STATES
Number of pages
1
Pages from-to
27786-27787
UT code for WoS article
000590753400008
EID of the result in the Scopus database
2-s2.0-85096079960