Resistance of Primary Photosynthesis to Photoinhibition in
Antarctic Lichen Xanthoria elegans: Photoprotective Mechanisms
Activated during a Short Period of High Light Stress

J 2023

Resistance of Primary Photosynthesis to Photoinhibition in Antarctic Lichen Xanthoria elegans: Photoprotective Mechanisms Activated during a Short Period of High Light Stress

BARTÁK, Miloš; Josef HÁJEK; Mehmet Goekhan HALICI; Michaela BEDNAŘÍKOVÁ; Angelica CASANOVA-KATNY et al.

Základní údaje

Originální název

Resistance of Primary Photosynthesis to Photoinhibition in Antarctic Lichen Xanthoria elegans: Photoprotective Mechanisms Activated during a Short Period of High Light Stress

Autoři

BARTÁK, Miloš; Josef HÁJEK; Mehmet Goekhan HALICI; Michaela BEDNAŘÍKOVÁ; Angelica CASANOVA-KATNY; Peter VÁCZI; Anton PUHOVKIN; Kumud Bandhu MISHRA a Davide GIORDANO

Vydání

Plants, MDPI, 2023, 2223-7747

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 4.000

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/23:00132971

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

non-photochemical quenching; photoinhibitory quenching; Antarctica; James Ross Island

Štítky

14314010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 12. 1. 2024 13:06, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The Antarctic lichen, Xanthoria elegans, in its hydrated state has several physiological mechanisms to cope with high light effects on the photosynthetic processes of its photobionts. We aim to investigate the changes in primary photochemical processes of photosystem II in response to a short-term photoinhibitory treatment. Several chlorophyll a fluorescence techniques: (1) slow Kautsky kinetics supplemented with quenching mechanism analysis; (2) light response curves of photosynthetic electron transport (ETR); and (3) response curves of non-photochemical quenching (NPQ) were used in order to evaluate the phenomenon of photoinhibition of photosynthesis and its consequent recovery. Our findings suggest that X. elegans copes well with short-term high light (HL) stress due to effective photoprotective mechanisms that are activated during the photoinhibitory treatment. The investigations of quenching mechanisms revealed that photoinhibitory quenching (qIt) was a major non-photochemical quenching in HL-treated X. elegans; qIt relaxed rapidly and returned to pre-photoinhibition levels after a 120 min recovery. We conclude that the Antarctic lichen species X. elegans exhibits a high degree of photoinhibition resistance and effective non-photochemical quenching mechanisms. This photoprotective mechanism may help it survive even repeated periods of high light during the early austral summer season, when lichens are moist and physiologically active.

Návaznosti

EF16_013/0001708, projekt VaV

Název: ECOPOLARIS - Změny ve struktuře a funkci součástí terestrických polárních ekosystémů (CzechPolar2)

LM2010009, projekt VaV

Název: Projekt CzechPolar - České polární stanice: Stavba a operační náklady

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Czech Polar - České polární stanice: Stavba a operační náklady

LM2015078, projekt VaV

Název: Česká polární výzkumná infrastruktura (Akronym: CzechPolar2)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Czech Polar Research Infrastructure

Citovat

BARTÁK, Miloš; Josef HÁJEK; Mehmet Goekhan HALICI; Michaela BEDNAŘÍKOVÁ; Angelica CASANOVA-KATNY; Peter VÁCZI; Anton PUHOVKIN; Kumud Bandhu MISHRA a Davide GIORDANO. Resistance of Primary Photosynthesis to Photoinhibition in Antarctic Lichen Xanthoria elegans: Photoprotective Mechanisms Activated during a Short Period of High Light Stress. Plants. MDPI, 2023, roč. 12, č. 12, s. 1-15. ISSN 2223-7747. Dostupné z: https://doi.org/10.3390/plants12122259.

@article{2360001,
   author = {Barták, Miloš and Hájek, Josef and Halici, Mehmet Goekhan and Bednaříková, Michaela and CasanovaandKatny, Angelica and Váczi, Peter and Puhovkin, Anton and Mishra, Kumud Bandhu and Giordano, Davide},
   article_number = {12},
   doi = {https://doi.org/10.3390/plants12122259},
   keywords = {non-photochemical quenching; photoinhibitory quenching; Antarctica; James Ross Island},
   language = {eng},
   issn = {2223-7747},
   journal = {Plants},
   title = {Resistance of Primary Photosynthesis to Photoinhibition in Antarctic Lichen Xanthoria elegans: Photoprotective Mechanisms Activated during a Short Period of High Light Stress},
   url = {https://doi.org/10.3390/plants12122259},
   volume = {12},
   year = {2023}
}

TY  - JOUR
ID  - 2360001
AU  - Barták, Miloš - Hájek, Josef - Halici, Mehmet Goekhan - Bednaříková, Michaela - Casanova-Katny, Angelica - Váczi, Peter - Puhovkin, Anton - Mishra, Kumud Bandhu - Giordano, Davide
PY  - 2023
TI  - Resistance of Primary Photosynthesis to Photoinhibition in Antarctic Lichen Xanthoria elegans: Photoprotective Mechanisms Activated during a Short Period of High Light Stress
JF  - Plants
VL  - 12
IS  - 12
SP  - 1-15
EP  - 1-15
PB  - MDPI
SN  - 22237747
KW  - non-photochemical quenching
KW  - photoinhibitory quenching
KW  - Antarctica
KW  - James Ross Island
UR  - https://doi.org/10.3390/plants12122259
N2  - The Antarctic lichen, Xanthoria elegans, in its hydrated state has several physiological mechanisms to cope with high light effects on the photosynthetic processes of its photobionts. We aim to investigate the changes in primary photochemical processes of photosystem II in response to a short-term photoinhibitory treatment. Several chlorophyll a fluorescence techniques: (1) slow Kautsky kinetics supplemented with quenching mechanism analysis; (2) light response curves of photosynthetic electron transport (ETR); and (3) response curves of non-photochemical quenching (NPQ) were used in order to evaluate the phenomenon of photoinhibition of photosynthesis and its consequent recovery. Our findings suggest that X. elegans copes well with short-term high light (HL) stress due to effective photoprotective mechanisms that are activated during the photoinhibitory treatment. The investigations of quenching mechanisms revealed that photoinhibitory quenching (qIt) was a major non-photochemical quenching in HL-treated X. elegans; qIt relaxed rapidly and returned to pre-photoinhibition levels after a 120 min recovery. We conclude that the Antarctic lichen species X. elegans exhibits a high degree of photoinhibition resistance and effective non-photochemical quenching mechanisms. This photoprotective mechanism may help it survive even repeated periods of high light during the early austral summer season, when lichens are moist and physiologically active.
ER  -

BARTÁK, Miloš; Josef HÁJEK; Mehmet Goekhan HALICI; Michaela BEDNAŘÍKOVÁ; Angelica CASANOVA-KATNY; Peter VÁCZI; Anton PUHOVKIN; Kumud Bandhu MISHRA a Davide GIORDANO. Resistance of Primary Photosynthesis to Photoinhibition in Antarctic Lichen Xanthoria elegans: Photoprotective Mechanisms Activated during a Short Period of High Light Stress. \textit{Plants}. MDPI, 2023, roč.~12, č.~12, s.~1-15. ISSN~2223-7747. Dostupné z: https://doi.org/10.3390/plants12122259.

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