Influence of annual changes of temperature and light (PAR) on induction of Chla fluorescence in situ in Plantago lanceolata (L) | Uticaj godisnjih promena temperature i svetlosti (PAR) na indukciju fluorescencije Chla in situ kod Plantago lanceolata L.
2007
Nikolic, B., Institut za zastitu bilja i zivotnu sredinu, Beograd (Serbia) | Milicevic, Z., Institut za pesticide i zastitu zivotne sredine, Beograd (Serbia) | Postic, D., Institut za zastitu bilja i zivotnu sredinu, Beograd (Serbia) | Dodig, D., Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia) | Jovanovic, V., Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia) | Janjic, V., Institut za pesticide i zastitu zivotne sredine, Beograd (Serbia)
In this article we investigated influence of annual changes of temperature and PAR on parameters of induction of Chla fluorescence in Plantago lanceolata, plant species more represented in warmer part of year. Lowering of temperature reduces quantum efficacy and electron transport in PS2 and induced low-temperature photoinhibition of photosyntesis. But, this is because of stronger photoprotective processes and changes of redox state of plastoquinone pool in PS2. Because that this processes we viewed as a acclimation to low temperatures. But with prolonged low - temperature exposure all physiological processes quenched and all aboveground parts delayed in that species. If we compare some different acclimation to low temperatures Plantago lanceolata and Plantago maior, species which settled in very neighbouring sites, the conclusion of that discussion is quection: Is it different acclimative responses of this species in condition of low temperatures, reason for possible competitive advantage one of them? This is object of future investigation.
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