Photosynthetic apparatus responses to short-term low-temperature flooding may contribute to freezing tolerance changes in forage grasses
PBN-AR
Instytucja
Wydział Rolniczo-Ekonomiczny (Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Journal of Agronomy and Crop Science
ISSN
0931-2250
EISSN
Wydawca
DOI
URL
Rok publikacji
2015
Numer zeszytu
1
Strony od-do
49-56
Numer tomu
201
Identyfikator DOI
Liczba arkuszy
0.5
Autorzy
Słowa kluczowe
en
Chlorophyll a fluorescence;cold acclimation;freezing tolerance
Streszczenia
Język
en
Treść
Winter conditions are subjected to rapid climate changes. Increased precipitation and snow melting during warmer winters may result in low-temperature flooding. These factors probably affect plant overwintering strategies. This study investigated the relationships between the photosynthetic adjustment and freezing tolerance following a short-term low-temperature flooding in two forage grasses (Lolium perenne and Festuca pratensis). The effect of flooding on the photosynthetic apparatus acclimation to cold was determined using chlorophyll a fluorescence measurements. Freezing tolerance was estimated using an electrolyte leakage test. It has been shown that genotypes activating non-photochemical mechanisms of photosynthetic acclimation to cold during low-temperature flooding may show increased freezing tolerance. Freezing tolerance reduction observed in Festuca pratensis was probably connected with decreased photochemical activity and photoinhibition of photosynthesis. It can be concluded that photosynthetic apparatus response to low-temperature flooding may contribute to changes in the freezing tolerance. The direction of the changes is associated with different photosynthetic apparatus performance. Photosynthetic Apparatus Responses to Short-term low-temperature Flooding May Contribute to Freezing Tolerance Changes in Forage Grasses - ResearchGate. Available from: http://www.researchgate.net/publication/264461123_Photosynthetic_Apparatus_Responses_to_Short-term_low-temperature_Flooding_May_Contribute_to_Freezing_Tolerance_Changes_in_Forage_Grasses [accessed Aug 26, 2015].
Inne
System-identifier
UR4d443032a7b54bdf83d3f2a865418ecb
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