Physiological and spectroscopical changes of the thermophilic cyanobacterium Synechococcus elongatus under iron stress and recovery culture
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F21%3A00542474" target="_blank" >RIV/61388971:_____/21:00542474 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s11738-021-03242-0" target="_blank" >https://link.springer.com/article/10.1007/s11738-021-03242-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11738-021-03242-0" target="_blank" >10.1007/s11738-021-03242-0</a>
Alternative languages
Result language
angličtina
Original language name
Physiological and spectroscopical changes of the thermophilic cyanobacterium Synechococcus elongatus under iron stress and recovery culture
Original language description
The iron in cyanobacterial cells contributes to energy conversion via electron transport chains, so its availability directly influences all metabolic pathways. Besides exploring cell adaptations and changes occurring with iron insufficient stress, the present work examines profoundly for the first time the metabolic changes accompanied with iron recovery for the thermophilic cyanobacterium Synechococcus elongatus (Nag., var. thermalis Geitl. Strain Kovrov 1972/8). S. elongatus cells were cultivated on two iron deprivation levels, iron-limited (45 nM Fe) and iron-deficient (4.5 nM Fe). Growth, carotenoids/Chlorophyll-a (Car/Chl-a) ratio, transmitting electron images, pigments fractionation analysis, and cell activity were checked. The obtained results demonstrated an astounding decrease in Chl-a content, an increment in beta-carotene content, leading to rising the Car/Chl-a ratio, a reduction of phycobilins content, a reduction in cell diameters, a decrease of energy transfer, a depletion of the electron transport chain, and a reduction of photosynthesis and respiration processes under inadequate iron condition. Likewise, the photochemical activity of photosystem II (PSII), determined by Fv/Fm ratio and thermoluminescence estimations, demonstrated that PSII was disabled under iron pressure. With iron recovery by 200 nM Fe, cells regained full metabolic activity within 24 h. Despite the fact that photosynthesis and respiration activity exhibited nearly a similar behavior, S. elongatus under iron-deficiency began to recuperate the activity of the photosynthetic apparatus quicker than the respiratory machinery by regaining their pigment content and activity.
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/GA18-07822S" target="_blank" >GA18-07822S: Strategies of adaptation of eukaryotic phytoplankton to iron limitation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Physiologiae Plantarum
ISSN
0137-5881
e-ISSN
1861-1664
Volume of the periodical
43
Issue of the periodical within the volume
5
Country of publishing house
DE - GERMANY
Number of pages
11
Pages from-to
72
UT code for WoS article
000641849900001
EID of the result in the Scopus database
2-s2.0-85104513918