Response of short-term heat shock on photosynthetic activity of soil crust cyanobacteria
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F20%3A43901249" target="_blank" >RIV/60076658:12310/20:43901249 - isvavai.cz</a>
Alternative codes found
RIV/67985939:_____/20:00525223
Result on the web
<a href="https://link.springer.com/article/10.1007/s00709-019-01418-7" target="_blank" >https://link.springer.com/article/10.1007/s00709-019-01418-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00709-019-01418-7" target="_blank" >10.1007/s00709-019-01418-7</a>
Alternative languages
Result language
angličtina
Original language name
Response of short-term heat shock on photosynthetic activity of soil crust cyanobacteria
Original language description
Short-term heat exposure in tropical regions can generate severe stress in the photosynthetic activity of soil crust cyanobacteria. We investigated the responses of two filamentous cyanobacteria, Scytonema tolypothrichoides and Tolypothrix bouteillei, to 1hr exposure at 35, 45, and 55 degrees C using variable chlorophyll fluorescence. Protocols for maximum quantum yield (F-V/F-M) and dark recovery of chlorophyll a fluorescence (OJIP) transient were applied. Heat exposure caused damage to the donor side of PSII, indicated by a decrease in F-V/F-M and a rapid increase in F-0. After heat stress, photochemical energy utilization (phi(Po), phi(ETo), and phi(RE1o)) declined and energy dissipation (phi(DIo)) increased. At 45 degrees C, the photosynthetic apparatus was reversibly damaged, since full recovery was observed after 7 days of relaxation. S. tolypothrichoides was more resistant to heat stress than T. bouteillei, confirming better adaptation to higher temperatures as observed in growth experiments.
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
10606 - Microbiology
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)
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
Protoplasma
ISSN
0033-183X
e-ISSN
—
Volume of the periodical
257
Issue of the periodical within the volume
1
Country of publishing house
AT - AUSTRIA
Number of pages
13
Pages from-to
61-73
UT code for WoS article
000511940500006
EID of the result in the Scopus database
2-s2.0-85069929756