Chilling effects on primary photosynthetic processes in
Medicago sativa: Acclimatory changes after short- and long-term
exposure to low temperatures

J 2020

Chilling effects on primary photosynthetic processes in Medicago sativa: Acclimatory changes after short- and long-term exposure to low temperatures

LANG, Jaroslav, Miloš BARTÁK, Josef HÁJEK, Peter VÁCZI, Bára ZIKMUNDOVÁ et. al.

Basic information

Original name

Chilling effects on primary photosynthetic processes in Medicago sativa: Acclimatory changes after short- and long-term exposure to low temperatures

Authors

LANG, Jaroslav (203 Czech Republic), Miloš BARTÁK (203 Czech Republic, belonging to the institution), Josef HÁJEK (203 Czech Republic, guarantor, belonging to the institution), Peter VÁCZI (703 Slovakia, belonging to the institution) and Bára ZIKMUNDOVÁ (203 Czech Republic)

Edition

Biologia, New York, Springer, 2020, 0006-3088

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10611 Plant sciences, botany

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 1.350

RIV identification code

RIV/00216224:14310/20:00116389

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.2478/s11756-020-00470-6

UT WoS

000521859900001

Keywords in English

Alfalfa; Chlorophyll fluorescence; Photosystem II

Abstract

V originále

Two cutivars (cv.) of alfalfa (Medicago sativa L.) were used to study the influence of chilling on chlorophyll fluorescence parameters related to the photosynthetic performance of photosystem II (PS II). Potted plants were exposed to two chilling treatments (10 and 5 degrees C) for 15 and 22 days, respectively. After the chilling, basic chlorophyll fluorescence parameters (F-V/F-M, phi(PSII), qN) and chlorophyll fluorescence signals emitted from light-harvesting complexes (F-0 - backgroung chlorophyll fluorescence) were measured by slow Kautsky kinetics supplemented by quenching analysis. Short-term effect of 5 degrees C was evaluated by fast chlorophyll fluorescence transients (OJIPs). Chilling did not lead to any change in F-V/F-M and phi(PSII) in both cultivars, indicating their chilling tolerance. Background chlorophyll fluorescence showed a chilling-induced increase in the cv. Zuzana but not the cv. Holyna. The F-0 increase was attributed to functional detachment of light-harvesting complexes from core PS II. In both cultivars, chilling treatment led to a decrease in non-photochemical quenching (qN). This decrease was attributed to a long-term acclimation of plants to low temperatures and the adjustment of PS II processes and photosynthetic performance. The shape of OJIP curves and OJIP-derived chlorophyll fluorescence parameters were found to be temperature-dependent after a short-term exposition to 5 degrees C. Both alfalfa cultivars showed chilling tolerance; however, the results suggest that the cv. Holyna may be more chilling-tolerant than the cv. Zuzana.

Links

EF16_013/0001708, research and development project

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

Citovat

LANG, Jaroslav, Miloš BARTÁK, Josef HÁJEK, Peter VÁCZI and Bára ZIKMUNDOVÁ. Chilling effects on primary photosynthetic processes in Medicago sativa: Acclimatory changes after short- and long-term exposure to low temperatures. Biologia. New York: Springer, 2020, vol. 75, No 8, p. 1105-1114. ISSN 0006-3088. Available from: https://dx.doi.org/10.2478/s11756-020-00470-6.

@article{1678150,
   author = {Lang, Jaroslav and Barták, Miloš and Hájek, Josef and Váczi, Peter and Zikmundová, Bára},
   article_location = {New York},
   article_number = {8},
   doi = {http://dx.doi.org/10.2478/s11756-020-00470-6},
   keywords = {Alfalfa; Chlorophyll fluorescence; Photosystem II},
   language = {eng},
   issn = {0006-3088},
   journal = {Biologia},
   title = {Chilling effects on primary photosynthetic processes in Medicago sativa: Acclimatory changes after short- and long-term exposure to low temperatures},
   url = {https://link.springer.com/article/10.2478/s11756-020-00470-6},
   volume = {75},
   year = {2020}
}

TY  - JOUR
ID  - 1678150
AU  - Lang, Jaroslav - Barták, Miloš - Hájek, Josef - Váczi, Peter - Zikmundová, Bára
PY  - 2020
TI  - Chilling effects on primary photosynthetic processes in Medicago sativa: Acclimatory changes after short- and long-term exposure to low temperatures
JF  - Biologia
VL  - 75
IS  - 8
SP  - 1105-1114
EP  - 1105-1114
PB  - Springer
SN  - 00063088
KW  - Alfalfa
KW  - Chlorophyll fluorescence
KW  - Photosystem II
UR  - https://link.springer.com/article/10.2478/s11756-020-00470-6
L2  - https://link.springer.com/article/10.2478/s11756-020-00470-6
N2  - Two cutivars (cv.) of alfalfa (Medicago sativa L.) were used to study the influence of chilling on chlorophyll fluorescence parameters related to the photosynthetic performance of photosystem II (PS II). Potted plants were exposed to two chilling treatments (10 and 5 degrees C) for 15 and 22 days, respectively. After the chilling, basic chlorophyll fluorescence parameters (F-V/F-M, phi(PSII), qN) and chlorophyll fluorescence signals emitted from light-harvesting complexes (F-0 - backgroung chlorophyll fluorescence) were measured by slow Kautsky kinetics supplemented by quenching analysis. Short-term effect of 5 degrees C was evaluated by fast chlorophyll fluorescence transients (OJIPs). Chilling did not lead to any change in F-V/F-M and phi(PSII) in both cultivars, indicating their chilling tolerance. Background chlorophyll fluorescence showed a chilling-induced increase in the cv. Zuzana but not the cv. Holyna. The F-0 increase was attributed to functional detachment of light-harvesting complexes from core PS II. In both cultivars, chilling treatment led to a decrease in non-photochemical quenching (qN). This decrease was attributed to a long-term acclimation of plants to low temperatures and the adjustment of PS II processes and photosynthetic performance. The shape of OJIP curves and OJIP-derived chlorophyll fluorescence parameters were found to be temperature-dependent after a short-term exposition to 5 degrees C. Both alfalfa cultivars showed chilling tolerance; however, the results suggest that the cv. Holyna may be more chilling-tolerant than the cv. Zuzana.
ER  -

LANG, Jaroslav, Miloš BARTÁK, Josef HÁJEK, Peter VÁCZI and Bára ZIKMUNDOVÁ. Chilling effects on primary photosynthetic processes in Medicago sativa: Acclimatory changes after short- and long-term exposure to low temperatures. \textit{Biologia}. New York: Springer, 2020, vol.~75, No~8, p.~1105-1114. ISSN~0006-3088. Available from: https://dx.doi.org/10.2478/s11756-020-00470-6.

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