TY  - JOUR
AU  - Nikolić, Bogdan
AU  - Dodig, Dejan
AU  - Jovanović, Vladan
AU  - Janjić, Vaskrsija
AU  - Milićević, Zoran
PY  - 2008
UR  - https://plantarum.izbis.bg.ac.rs/handle/123456789/81
AB  - Chla fluorescence, as a mode of estimation of photosynthesis, is especially sensitive to changes in temperature and light intensity (PAR). This enables us to study the influence of those ecophysiological parameters on photosynthesis in native plants. In this article, we examined the effect of annual changes in temperature and PAR on the parameters of Chla fluorescence in Stellaria media (L.), a plant species more frequent in colder periods of the year, and Plantago maior (L.), which is more frequent in warmer periods. Lower PAR and temperature slowed down the electron transport in PS2, but lower temperatures reduced the quantum efficacy of PS2 and improved processes in the antennae system and the size of plastoquinone pool of PS2 in Stellaria media (L.). Lower temperatures reduced quantum efficacy and slowed down the electron transport in PS2 in Plantago maior (L.). The facts that PAR (as well as temperature) affects photosynthesis, and that lower temperatures activate processes in the antennae system and those on the acceptor side of PS2 as a 'counterbalance' to the inhibition of quantum efficacy and electron transport in PS2, caused by low temperatures, point at possible explanations of low-temperature resistance of photosynthesis in Stellaria media (L.). On the other hand, low temperatures caused inhibition of quantum efficacy and electron transport in the PS2 of Plantago maior (L.), which caused low-temperature photoinhibition and stepped quenching of all physiological processes in the species. This might be the reason for the different levels of acclimation to low temperatures and different life strategies of the two species living in close vicinity.
AB  - Fluorescencija Chla, kao pokazatelj fotosinteze, posebno je osetljiva na promene temperature i intenziteta svetlosti (PAR). To omogućava praćenje uticaja ovih ekofizioloških parametara na fotosintezu nativnih biljaka. U ovom radu dat je pregled uticaja godišnjih promena temperature i PAR na parametre fluorescencije Chla kod Stellaria media (L.), biljne vrste zastupljenije u hladnijem delu godine i Plantago maior (L.), biljne vrste zastupljenije u toplijem delu godine. Manje vrednosti PAR i temperature usporavaju transport elektrona u PS2, sniženje temperature umanjuje kvantnu efikasnost u PS2 i pozitivno deluje na antenske procese i veličinu pula plastohinona u PS2 kod Stellaria media (L.). Sniženje temperature umanjuje kvantni prinos i usporava transport elektrona u PS2 kod Plantago maior (L.). Činjenica da i PAR (pored temperature) deluje na fotosintezu, kao i da sniženje temperature aktivira antenske i procese na akceptorskoj strani PS2, kao "protivtežu" inhibiciji kvantne efikasnosti i transporta elektrona u PS2, uzrokovanoj niskim temperaturama, ukazuje na moguće uzroke niskotemperaturne otpornosti fotosinteze kod Stellaria media (L.). Nasuprot tome, kod Plantago maior (L.) niska temperatura uzrokuje inhibiciju kvantne efikasnosti i transporta elektrona u PS2, što dovodi do niskotemperaturne fotoinhibicije i postepenog gašenja svih fizioloških procesa kod te vrste. To bi moglo biti objašnjenje različite prilagođenosti na niske temperature i različitih životnih strategija ovih vrsta, koje žive u bliskom susedstvu.
PB  - Herbološko društvo Srbije, Beograd
T2  - Acta herbologica
T1  - The influence of annual changes in temperature and light (PAR) on the induction of Chla fluorescence in situ in Stellaria media (L.) and Plantago maior (L.)
T1  - Uticaj godišnjih promena temperature i svetlosti (PAR) na indukciju fluorescencije Chla in situ kod Stellaria media (L.) i Plantago maior (L.)
EP  - 153
IS  - 1
SP  - 147
VL  - 17
ER  - 

@article{
author = "Nikolić, Bogdan and Dodig, Dejan and Jovanović, Vladan and Janjić, Vaskrsija and Milićević, Zoran",
year = "2008",
abstract = "Chla fluorescence, as a mode of estimation of photosynthesis, is especially sensitive to changes in temperature and light intensity (PAR). This enables us to study the influence of those ecophysiological parameters on photosynthesis in native plants. In this article, we examined the effect of annual changes in temperature and PAR on the parameters of Chla fluorescence in Stellaria media (L.), a plant species more frequent in colder periods of the year, and Plantago maior (L.), which is more frequent in warmer periods. Lower PAR and temperature slowed down the electron transport in PS2, but lower temperatures reduced the quantum efficacy of PS2 and improved processes in the antennae system and the size of plastoquinone pool of PS2 in Stellaria media (L.). Lower temperatures reduced quantum efficacy and slowed down the electron transport in PS2 in Plantago maior (L.). The facts that PAR (as well as temperature) affects photosynthesis, and that lower temperatures activate processes in the antennae system and those on the acceptor side of PS2 as a 'counterbalance' to the inhibition of quantum efficacy and electron transport in PS2, caused by low temperatures, point at possible explanations of low-temperature resistance of photosynthesis in Stellaria media (L.). On the other hand, low temperatures caused inhibition of quantum efficacy and electron transport in the PS2 of Plantago maior (L.), which caused low-temperature photoinhibition and stepped quenching of all physiological processes in the species. This might be the reason for the different levels of acclimation to low temperatures and different life strategies of the two species living in close vicinity., Fluorescencija Chla, kao pokazatelj fotosinteze, posebno je osetljiva na promene temperature i intenziteta svetlosti (PAR). To omogućava praćenje uticaja ovih ekofizioloških parametara na fotosintezu nativnih biljaka. U ovom radu dat je pregled uticaja godišnjih promena temperature i PAR na parametre fluorescencije Chla kod Stellaria media (L.), biljne vrste zastupljenije u hladnijem delu godine i Plantago maior (L.), biljne vrste zastupljenije u toplijem delu godine. Manje vrednosti PAR i temperature usporavaju transport elektrona u PS2, sniženje temperature umanjuje kvantnu efikasnost u PS2 i pozitivno deluje na antenske procese i veličinu pula plastohinona u PS2 kod Stellaria media (L.). Sniženje temperature umanjuje kvantni prinos i usporava transport elektrona u PS2 kod Plantago maior (L.). Činjenica da i PAR (pored temperature) deluje na fotosintezu, kao i da sniženje temperature aktivira antenske i procese na akceptorskoj strani PS2, kao "protivtežu" inhibiciji kvantne efikasnosti i transporta elektrona u PS2, uzrokovanoj niskim temperaturama, ukazuje na moguće uzroke niskotemperaturne otpornosti fotosinteze kod Stellaria media (L.). Nasuprot tome, kod Plantago maior (L.) niska temperatura uzrokuje inhibiciju kvantne efikasnosti i transporta elektrona u PS2, što dovodi do niskotemperaturne fotoinhibicije i postepenog gašenja svih fizioloških procesa kod te vrste. To bi moglo biti objašnjenje različite prilagođenosti na niske temperature i različitih životnih strategija ovih vrsta, koje žive u bliskom susedstvu.",
publisher = "Herbološko društvo Srbije, Beograd",
journal = "Acta herbologica",
title = "The influence of annual changes in temperature and light (PAR) on the induction of Chla fluorescence in situ in Stellaria media (L.) and Plantago maior (L.), Uticaj godišnjih promena temperature i svetlosti (PAR) na indukciju fluorescencije Chla in situ kod Stellaria media (L.) i Plantago maior (L.)",
pages = "153-147",
number = "1",
volume = "17"
}

Nikolić, B., Dodig, D., Jovanović, V., Janjić, V.,& Milićević, Z.. (2008). The influence of annual changes in temperature and light (PAR) on the induction of Chla fluorescence in situ in Stellaria media (L.) and Plantago maior (L.). in Acta herbologica
Herbološko društvo Srbije, Beograd., 17(1), 147-153.

Nikolić B, Dodig D, Jovanović V, Janjić V, Milićević Z. The influence of annual changes in temperature and light (PAR) on the induction of Chla fluorescence in situ in Stellaria media (L.) and Plantago maior (L.). in Acta herbologica. 2008;17(1):147-153..

Nikolić, Bogdan, Dodig, Dejan, Jovanović, Vladan, Janjić, Vaskrsija, Milićević, Zoran, "The influence of annual changes in temperature and light (PAR) on the induction of Chla fluorescence in situ in Stellaria media (L.) and Plantago maior (L.)" in Acta herbologica, 17, no. 1 (2008):147-153.

TY  - JOUR
AU  - Nikolić, Bogdan
AU  - Dodig, Dejan
AU  - Jovanović, V.
AU  - Janjić, Vaskrsija
AU  - Đurović, Sanja
PY  - 2008
UR  - https://plantarum.izbis.bg.ac.rs/handle/123456789/88
AB  - The effects of PAR and temperature on induction of Chl a fluorescence were observed on leaves of 20 plant species in their natural environments. Light affects the acceptor side of PS2. Temperature regulation of PS2 activity proceeds by affecting the RC and acceptor side of PS2. The impact of higher temperature can be attributed to greater fluidity of the thylakoid membranes. Photosynthetically active radiation and temperature under the given conditions are in highly significant positive correlation, so it is not clear whether this impact is due to individual or complementary mechanisms of PAR and/or temperature affecting photosynthetic processes in the thylakoid membranes. Also, it is not clear whether species specificity has any significance in the plant photosynthetic response to changes of PAR and temperature. Changes of PAR and temperature during induction of Chl a fluorescence do not affect Pindex, as a parameter of total photosynthesis.
AB  - Praćen je uticaj PAR i temperature na indukciju fluorescencije Chl a na listovima 20 biljnih vrsta u njihovom prirodnom okruženju. Svetlost deluje na akceptorsku stranu PS2. Regulacija aktivnosti PS2 temperaturom odvija se uticajem na RC i akceptorsku stranu PS2. Uticaj povišene temperature moguće je objasniti i povećanom fluidnošću tilakoidnih membrana. PAR i temperatura u datim uslovima nalaze se u visokoznačajnoj pozitivnoj korelaciji, tako da nije jasno da li se radi o posebnim ili komplementarnim mehanizmima dejstva PAR i/ili temperature na fotosintetske procese u tilakoidnim membranama. Takođe nije jasno da li specijska specifičnost ima neki značaj u fotosintetskoj reakciji biljaka na promene PAR i temperature. U ovim procesima promene PAR i temperature ne utiču na Pindex, kao pokazatelj ukupne fotosinteze.
PB  - University of Belgrade, University of Novi Sad
T2  - Archives of Biological Sciences
T1  - Effects of temperature and light induction of CHL a fluorescence in situ: An ecophysiological view
T1  - Uticaj temperature i svetlosti (par) na indukciju fluorescencije CHL a in situ - ekofiziološki pregled
EP  - 572
IS  - 4
SP  - 567
VL  - 60
DO  - 10.2298/ABS0804567N
ER  - 

@article{
author = "Nikolić, Bogdan and Dodig, Dejan and Jovanović, V. and Janjić, Vaskrsija and Đurović, Sanja",
year = "2008",
abstract = "The effects of PAR and temperature on induction of Chl a fluorescence were observed on leaves of 20 plant species in their natural environments. Light affects the acceptor side of PS2. Temperature regulation of PS2 activity proceeds by affecting the RC and acceptor side of PS2. The impact of higher temperature can be attributed to greater fluidity of the thylakoid membranes. Photosynthetically active radiation and temperature under the given conditions are in highly significant positive correlation, so it is not clear whether this impact is due to individual or complementary mechanisms of PAR and/or temperature affecting photosynthetic processes in the thylakoid membranes. Also, it is not clear whether species specificity has any significance in the plant photosynthetic response to changes of PAR and temperature. Changes of PAR and temperature during induction of Chl a fluorescence do not affect Pindex, as a parameter of total photosynthesis., Praćen je uticaj PAR i temperature na indukciju fluorescencije Chl a na listovima 20 biljnih vrsta u njihovom prirodnom okruženju. Svetlost deluje na akceptorsku stranu PS2. Regulacija aktivnosti PS2 temperaturom odvija se uticajem na RC i akceptorsku stranu PS2. Uticaj povišene temperature moguće je objasniti i povećanom fluidnošću tilakoidnih membrana. PAR i temperatura u datim uslovima nalaze se u visokoznačajnoj pozitivnoj korelaciji, tako da nije jasno da li se radi o posebnim ili komplementarnim mehanizmima dejstva PAR i/ili temperature na fotosintetske procese u tilakoidnim membranama. Takođe nije jasno da li specijska specifičnost ima neki značaj u fotosintetskoj reakciji biljaka na promene PAR i temperature. U ovim procesima promene PAR i temperature ne utiču na Pindex, kao pokazatelj ukupne fotosinteze.",
publisher = "University of Belgrade, University of Novi Sad",
journal = "Archives of Biological Sciences",
title = "Effects of temperature and light induction of CHL a fluorescence in situ: An ecophysiological view, Uticaj temperature i svetlosti (par) na indukciju fluorescencije CHL a in situ - ekofiziološki pregled",
pages = "572-567",
number = "4",
volume = "60",
doi = "10.2298/ABS0804567N"
}

Nikolić, B., Dodig, D., Jovanović, V., Janjić, V.,& Đurović, S.. (2008). Effects of temperature and light induction of CHL a fluorescence in situ: An ecophysiological view. in Archives of Biological Sciences
University of Belgrade, University of Novi Sad., 60(4), 567-572.
https://doi.org/10.2298/ABS0804567N

Nikolić B, Dodig D, Jovanović V, Janjić V, Đurović S. Effects of temperature and light induction of CHL a fluorescence in situ: An ecophysiological view. in Archives of Biological Sciences. 2008;60(4):567-572.
doi:10.2298/ABS0804567N .

Nikolić, Bogdan, Dodig, Dejan, Jovanović, V., Janjić, Vaskrsija, Đurović, Sanja, "Effects of temperature and light induction of CHL a fluorescence in situ: An ecophysiological view" in Archives of Biological Sciences, 60, no. 4 (2008):567-572,
https://doi.org/10.2298/ABS0804567N . .