Seasonal Differences in Leaf Photoprotective Potential between Adults and Juveniles of Two Mediterranean Perennials with Distinct Growth Forms: A Comparative Field Study
Abstract
:1. Introduction
2. Materials and Methods
2.1. Plant Material, Experimental Site, and Sampling
2.2. Chlorophyll Fluorescence Measurements in the Light Acclimated State
2.3. Rapid Light Curve Fitting
2.4. Photosynthetic Pigments
2.5. Statistical Analysis
3. Results
3.1. Chlorophyll Fluorescence Measurements
3.2. Photosynthetic Parameters after RLC Fitting
3.3. Photosynthetic Pigments
4. Discussion
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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ETRmax | Ek | Em | |||||
Adults | Juveniles | Adults | Juveniles | Adults | Juveniles | ||
N. oleander | Spring | 174.2 ± 12.8 a | 99.8 ± 7.2 a* | 660 ± 45 a | 373 ± 22 a* | 1930 ± 120 a | 1500 ± 85 a* |
Summer | 136.5 ± 13.9 b | 45.6 ± 6.1 b* | 515 ± 33 b | 375 ± 39 a* | 1820 ± 110 a | 950 ± 60 b* | |
Autumn | 154.5 ± 14.5 ab | 159.4 ± 16.7 c | 582 ± 31 b | 568 ± 35 b | 1820 ± 130 a | 1940 ± 75 c | |
Winter | 92.1 ± 6.4 c | 34.5 ± 4.4 b* | 646 ± 39 a | 377 ± 32 a* | 1540 ± 90 b | 950 ± 50 b* | |
C. siliquastrum | Spring | 151.4 ± 16.7 a | 114.1 ± 11.2 a* | 539 ± 24 a | 427 ± 26 a* | 1400 ± 120 ab | 1200 ± 80 a |
Summer | 148.8 ± 17.3 a | 95.4 ± 6.4 a* | 528 ± 27 a | 365 ± 35 b* | 1500 ± 95 a | 1400 ± 75 b | |
Autumn | 140.3 ± 19.2 a | 102 ± 13.7 a* | 501 ± 29 a | 393 ± 22 b* | 1350 ± 70 b | 1000 ± 55 c* |
Chls (μg/cm2) | Car (μg/cm2) | ||||
Adults | Juveniles | Adults | Juveniles | ||
N. oleander | Spring | 45.5 ± 7.1 a | 40.3 ± 6.7 a | 8.8 ± 1.8 a | 8.4 ± 1.3 a |
Summer | 46.6 ± 12.4 a | 42.2 ± 5.9 a | 8.4 ± 1.9 a | 8.7 ± 1.5 a | |
Autumn | 57.7 ± 5.3 a | 61.5 ± 9.1 b | 11.3 ± 0.9 b | 11.3 ± 1.8 b | |
Winter | 50.8 ± 8.4 a | 58.1 ± 9.1 b | 12.1 ± 1.7 b | 13.2 ± 1.7 b | |
C. siliquastrum | Spring | 39.3 ± 5.2 a | 21.0 ± 0.8 a* | 6.5 ± 0.7 a | 3.9 ± 0.1 a* |
Summer | 37.9 ± 5.1 a | 24.9 ± 3.7 a* | 7.3 ± 1.0 a | 5.3 ± 1.2 b* | |
Autumn | 40.9 ± 5.8 a | 24.7 ± 3.5 a* | 7.0 ± 0.6 a | 3.9 ± 0.5 a* |
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Chondrogiannis, C.; Kotsi, K.; Grammatikopoulos, G.; Petropoulou, Y. Seasonal Differences in Leaf Photoprotective Potential between Adults and Juveniles of Two Mediterranean Perennials with Distinct Growth Forms: A Comparative Field Study. Plants 2023, 12, 3110. https://doi.org/10.3390/plants12173110
Chondrogiannis C, Kotsi K, Grammatikopoulos G, Petropoulou Y. Seasonal Differences in Leaf Photoprotective Potential between Adults and Juveniles of Two Mediterranean Perennials with Distinct Growth Forms: A Comparative Field Study. Plants. 2023; 12(17):3110. https://doi.org/10.3390/plants12173110
Chicago/Turabian StyleChondrogiannis, Christos, Kassiani Kotsi, George Grammatikopoulos, and Yiola Petropoulou. 2023. "Seasonal Differences in Leaf Photoprotective Potential between Adults and Juveniles of Two Mediterranean Perennials with Distinct Growth Forms: A Comparative Field Study" Plants 12, no. 17: 3110. https://doi.org/10.3390/plants12173110