Nitrogen fixation and diurnal changes of photosynthetic activity in Arctic soil crusts at different development stage
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F17%3A43896010" target="_blank" >RIV/60076658:12310/17:43896010 - isvavai.cz</a>
Alternative codes found
RIV/60077344:_____/17:00474587 RIV/67985939:_____/17:00474587
Result on the web
<a href="https://ac.els-cdn.com/S1164556317300742/1-s2.0-S1164556317300742-main.pdf?_tid=add453d0-04ca-11e8-9448-00000aab0f6b&acdnat=1517213106_3a097748a67d92e532858dd65b340e4b" target="_blank" >https://ac.els-cdn.com/S1164556317300742/1-s2.0-S1164556317300742-main.pdf?_tid=add453d0-04ca-11e8-9448-00000aab0f6b&acdnat=1517213106_3a097748a67d92e532858dd65b340e4b</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ejsobi.2017.02.002" target="_blank" >10.1016/j.ejsobi.2017.02.002</a>
Alternative languages
Result language
angličtina
Original language name
Nitrogen fixation and diurnal changes of photosynthetic activity in Arctic soil crusts at different development stage
Original language description
Nitrogen fixation and photosynthesis provided by microbial phototrophs (cyanobacteria and eukaryotic microalgae) are important processes occurring in Arctic soil crusts. Here, we describe and compare these processes in biological soil crusts from Central Svalbard at different stages of development. The gradient from poorly-developed to well-developed soil crusts was accompanied by the changes in biovolume of microbial phototrophs, nitrogenase and photosynthetic activity. The lowest biovolume of microbial phototrophs was detected in poorly-developed soil crusts as a consequence of the initial stage of soil colonization. The biovolume initially increased during the soil crust development but decreased in well developed lichenized soil crusts. However, nitrogenase activity decreased from poorly to more developed soil crusts. Diurnal courses of photosynthetic activity differed among the soil crust types showing shifts in diurnal minima and maxima; the poorly-developed soil crust reacted faster to changes in temperature and PAR. In spite of different microclimatic conditions during the measurements, temperature was the main factor influencing photosynthetic activity while the effect of PAR was not significant. Higher temperatures led to inhibition of photosynthetic activity and increased energy dissipation, indicating acclimation/adaptation of the soil crust photosynthetic microorganisms to a cold environment.
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
40104 - Soil science
Result continuities
Project
<a href="/en/project/LM2015078" target="_blank" >LM2015078: Czech Polar Research Infrastructure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Journal of Soil Biology
ISSN
1164-5563
e-ISSN
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Volume of the periodical
79
Issue of the periodical within the volume
MAR-APR 2017
Country of publishing house
FR - FRANCE
Number of pages
10
Pages from-to
21-30
UT code for WoS article
000399851100003
EID of the result in the Scopus database
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