Photoinhibition and recovery of primary photosynthesis in
Antarctic and subantarctic lichens. Analysis of interspecific
differences

J 2024

Photoinhibition and recovery of primary photosynthesis in Antarctic and subantarctic lichens. Analysis of interspecific differences

HAQ, Syed Inzimam Ul; Marta Bravo BENITA a Sonia DE CARALT

Základní údaje

Originální název

Photoinhibition and recovery of primary photosynthesis in Antarctic and subantarctic lichens. Analysis of interspecific differences

Autoři

HAQ, Syed Inzimam Ul; Marta Bravo BENITA a Sonia DE CARALT

Vydání

Czech Polar Reports, Brno, Masaryk University, 2024, 1805-0689

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10611 Plant sciences, botany

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 0.800

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/24:00137941

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Kautsky's kinetic; lichens; OJIP methods; photoinhibition; photosystem II

Štítky

14314010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 10. 12. 2024 12:09, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

This study meticulously investigates the dynamics of photoinhibition and the mechanisms of primary photosynthetic activity recovery in lichens found in Antarctica and the sub-Antarctic regions. Advanced methodologies were utilised, such as Kautsky's kinetic analysis and the OJIP test. The study carefully details the response of various lichen species to intense light stress, outlining both immediate effects and subsequent recovery processes. Our findings reveal that these lichens employ a range of adaptive strategies, specific to each species, to mitigate the effects of photoinhibition, thereby emphasizing their remarkable resilience and ecological importance in harsh environments. Notably, the investigation reveals the sophisticated interplay between inherent photoprotective mechanisms and the ecological adaptations that enable these lichens to thrive under such harsh conditions. The study not only advances our knowledge of plant physiology under stress but also enriches our insights into the survival strategies of terrestrial organisms facing global environmental changes. Three types of photoinhibitory treatments differing in their duration and strength were applied to 7 lichen species from Antarctica and South America (Isla Navarino). The lichens responded with a decrease in photosynthetic processes in photosystem II (FV/FM V /F M and Phi PSII declined), although they showed almost complete recovery in the following 5 h. This was attributed to the activation of photoprotective mechanisms, non-photochemical quenching (NPQ) in particular, during photoinhibitory treatments. Chlorophyll fluorescence parameters derived from slow Kautsky kinetics were correlated with those derived from the OJIP curve. Our study presents data that supports the conclusion of significant photoresistance of the studied lichen species in the hydrated state to photoinhibition induced by high doses of photosynthetically active radiation (PAR).

Citovat

HAQ, Syed Inzimam Ul; Marta Bravo BENITA a Sonia DE CARALT. Photoinhibition and recovery of primary photosynthesis in Antarctic and subantarctic lichens. Analysis of interspecific differences. Czech Polar Reports. Brno: Masaryk University, 2024, roč. 14, č. 1, s. 51-76. ISSN 1805-0689. Dostupné z: https://doi.org/10.5817/CPR2024-1-4.

@article{2459131,
   author = {Haq, Syed Inzimam Ul and Benita, Marta Bravo and de Caralt, Sonia},
   article_location = {Brno},
   article_number = {1},
   doi = {https://doi.org/10.5817/CPR2024-1-4},
   keywords = {Kautsky's kinetic; lichens; OJIP methods; photoinhibition; photosystem II},
   language = {eng},
   issn = {1805-0689},
   journal = {Czech Polar Reports},
   title = {Photoinhibition and recovery of primary photosynthesis in Antarctic and subantarctic lichens. Analysis of interspecific differences},
   url = {https://journals.muni.cz/CPR/article/view/39283},
   volume = {14},
   year = {2024}
}

TY  - JOUR
ID  - 2459131
AU  - Haq, Syed Inzimam Ul - Benita, Marta Bravo - de Caralt, Sonia
PY  - 2024
TI  - Photoinhibition and recovery of primary photosynthesis in Antarctic and subantarctic lichens. Analysis of interspecific differences
JF  - Czech Polar Reports
VL  - 14
IS  - 1
SP  - 51-76
EP  - 51-76
PB  - Masaryk University
SN  - 18050689
KW  - Kautsky's kinetic
KW  - lichens
KW  - OJIP methods
KW  - photoinhibition
KW  - photosystem II
UR  - https://journals.muni.cz/CPR/article/view/39283
N2  - This study meticulously investigates the dynamics of photoinhibition and the mechanisms of primary photosynthetic activity recovery in lichens found in Antarctica and the sub-Antarctic regions. Advanced methodologies were utilised, such as Kautsky's kinetic analysis and the OJIP test. The study carefully details the response of various lichen species to intense light stress, outlining both immediate effects and subsequent recovery processes. Our findings reveal that these lichens employ a range of adaptive strategies, specific to each species, to mitigate the effects of photoinhibition, thereby emphasizing their remarkable resilience and ecological importance in harsh environments. Notably, the investigation reveals the sophisticated interplay between inherent photoprotective mechanisms and the ecological adaptations that enable these lichens to thrive under such harsh conditions. The study not only advances our knowledge of plant physiology under stress but also enriches our insights into the survival strategies of terrestrial organisms facing global environmental changes. Three types of photoinhibitory treatments differing in their duration and strength were applied to 7 lichen species from Antarctica and South America (Isla Navarino). The lichens responded with a decrease in photosynthetic processes in photosystem II (FV/FM V /F M and Phi PSII declined), although they showed almost complete recovery in the following 5 h. This was attributed to the activation of photoprotective mechanisms, non-photochemical quenching (NPQ) in particular, during photoinhibitory treatments. Chlorophyll fluorescence parameters derived from slow Kautsky kinetics were correlated with those derived from the OJIP curve. Our study presents data that supports the conclusion of significant photoresistance of the studied lichen species in the hydrated state to photoinhibition induced by high doses of photosynthetically active radiation (PAR).
ER  -

HAQ, Syed Inzimam Ul; Marta Bravo BENITA a Sonia DE CARALT. Photoinhibition and recovery of primary photosynthesis in Antarctic and subantarctic lichens. Analysis of interspecific differences. \textit{Czech Polar Reports}. Brno: Masaryk University, 2024, roč.~14, č.~1, s.~51-76. ISSN~1805-0689. Dostupné z: https://doi.org/10.5817/CPR2024-1-4.

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