2020
|
 | Vastag, Erna; Orlović, Saša; Konôpková, Alena; Kurjak, Daniel; Cocozza, Claudia; Pšidová, Eva; Lapin, Katharina; Kesić, Lazar; Stojnić, Srdan Magnolia grandiflora L. shows better responses to drought than Magnolia × soulangeana in urban environment Journal Article iFOREST - Biogeosciences and Forestry, 13 (6), pp. 575-583, 2020, ISSN: 1971-7458. Abstract | Links | BibTeX @article{Vastag2020,
title = {\textit{Magnolia grandiflora} L. shows better responses to drought than \textit{Magnolia × soulangeana} in urban environment},
author = {Erna Vastag and Saša Orlović and Alena Konôpková and Daniel Kurjak and Claudia Cocozza and Eva Pšidová and Katharina Lapin and Lazar Kesić and Srdan Stojnić},
doi = {10.3832/ifor3596-013},
issn = {1971-7458},
year = {2020},
date = {2020-12-07},
journal = {iFOREST - Biogeosciences and Forestry},
volume = {13},
number = {6},
pages = {575-583},
abstract = {Drought tolerance is becoming an increasingly important criterion for the selection of tree species, especially in urban areas characterized by low water availability. Apart from drought tolerance, the introduction of non-native species should be considered for new planting programs under such conditions to enhance the resilience of urban forests. The present study is aimed at evaluating the in situ physiological responses of Magnolia grandiflora and Magnolia × soulangeana to severe drought that frequently occurs in urban environments in the Southeastern Europe. Transpiration rate, stomatal conductance, intercellular CO2 concentration, water-use efficiency and intrinsic water-use efficiency showed notable differences both between species and between the measured periods (wet and dry). Among the chlorophyll a fluorescence parameters, effective photochemical quantum yield of PS II, quantum yield of light-induced non-photochemical fluorescence quenching, quantum yield of non-regulated heat dissipation, fluorescence emission and index of susceptibility of leaves to light stress revealed significant differences both between the two species and the periods of measurements. The reduction of net photosynthesis in both magnolia species occurs as the result of non-stomatal limitation obtained by the reduction of electron transport rate coupled with simultaneous increase in intercellular CO2 concentration. Moreover, M. grandiflora was the species less vulnerable to water shortage conditions, while M. soulangeana exhibited a photosynthetic capacity sensitive to drought-induced stress. M. grandiflora can therefore be considered as a promising alternative to M. soulangeana for urban sites under the predicted climate change scenarios.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Drought tolerance is becoming an increasingly important criterion for the selection of tree species, especially in urban areas characterized by low water availability. Apart from drought tolerance, the introduction of non-native species should be considered for new planting programs under such conditions to enhance the resilience of urban forests. The present study is aimed at evaluating the in situ physiological responses of Magnolia grandiflora and Magnolia × soulangeana to severe drought that frequently occurs in urban environments in the Southeastern Europe. Transpiration rate, stomatal conductance, intercellular CO2 concentration, water-use efficiency and intrinsic water-use efficiency showed notable differences both between species and between the measured periods (wet and dry). Among the chlorophyll a fluorescence parameters, effective photochemical quantum yield of PS II, quantum yield of light-induced non-photochemical fluorescence quenching, quantum yield of non-regulated heat dissipation, fluorescence emission and index of susceptibility of leaves to light stress revealed significant differences both between the two species and the periods of measurements. The reduction of net photosynthesis in both magnolia species occurs as the result of non-stomatal limitation obtained by the reduction of electron transport rate coupled with simultaneous increase in intercellular CO2 concentration. Moreover, M. grandiflora was the species less vulnerable to water shortage conditions, while M. soulangeana exhibited a photosynthetic capacity sensitive to drought-induced stress. M. grandiflora can therefore be considered as a promising alternative to M. soulangeana for urban sites under the predicted climate change scenarios. |
| Konôpková, Alena; Pšidová, Eva; Kurjak, Daniel; Stojnić, Srđan; Petrík, Peter; Jr, Peter Fleischer; Kučerová, Jana; Ježík, Marek; Petek, Anja; Gömöry, Dušan; Kmeť, Jaroslav; Longauer, Roman; Ditmarová, Ľubica Photosynthetic performance of silver fir (Abies alba) of different origins under suboptimal growing conditions Journal Article Functional Plant Biology, 47 (11), pp. 1007-1018, 2020, ISSN: 1445-4408. Abstract | Links | BibTeX @article{Konôpková2020c,
title = {Photosynthetic performance of silver fir (\textit{Abies alba}) of different origins under suboptimal growing conditions},
author = {Alena Konôpková and Eva Pšidová and Daniel Kurjak and Srđan Stojnić and Peter Petrík and Peter Fleischer Jr and Jana Kučerová and Marek Ježík and Anja Petek and Dušan Gömöry and Jaroslav Kmeť and Roman Longauer and Ľubica Ditmarová},
doi = {10.1071/FP20040},
issn = {1445-4408},
year = {2020},
date = {2020-06-24},
journal = {Functional Plant Biology},
volume = {47},
number = {11},
pages = {1007-1018},
abstract = {Understanding of the intraspecific variability in the physiological stress response of trees may enable to mitigate the impact of climate change on forest ecosystems in the future. We studied the photosynthetic performance of five silver fir (Abies alba Mill.) provenances originating from climatically distinct localities. The study was performed in the trial plot of the silver fir provenance experiment IUFRO 2005 on two dates: in the early summer and in the late summer. Heat waves and a decrease in water availability occurred between the two measurement dates, allowing us to study the response of the provenances to suboptimal growing conditions. The provenances were evaluated at the level of PSII photochemistry and CO2 assimilation by measuring photosynthesis-related pigment content, chlorophyll a fluorescence, and gas exchange parameters. Significant climatic clines were confirmed: the photosynthetic performance before and after the stress period increased with the increasing altitude and precipitation at the site of origin. In contrast, photosynthetic performance declined with the increasing temperature and Ellenberg’s quotient of the origin site. We concluded that provenances originating from high altitudes, corresponding well with more humid and colder conditions in Central Europe, showed the greatest photosynthetic performance and were less responsive to moderate heat and drought. This documents inter-population variation in physiological traits, which needs to be considered in setting rules and recommendations for the transfer of forest reproductive materials.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Understanding of the intraspecific variability in the physiological stress response of trees may enable to mitigate the impact of climate change on forest ecosystems in the future. We studied the photosynthetic performance of five silver fir (Abies alba Mill.) provenances originating from climatically distinct localities. The study was performed in the trial plot of the silver fir provenance experiment IUFRO 2005 on two dates: in the early summer and in the late summer. Heat waves and a decrease in water availability occurred between the two measurement dates, allowing us to study the response of the provenances to suboptimal growing conditions. The provenances were evaluated at the level of PSII photochemistry and CO2 assimilation by measuring photosynthesis-related pigment content, chlorophyll a fluorescence, and gas exchange parameters. Significant climatic clines were confirmed: the photosynthetic performance before and after the stress period increased with the increasing altitude and precipitation at the site of origin. In contrast, photosynthetic performance declined with the increasing temperature and Ellenberg’s quotient of the origin site. We concluded that provenances originating from high altitudes, corresponding well with more humid and colder conditions in Central Europe, showed the greatest photosynthetic performance and were less responsive to moderate heat and drought. This documents inter-population variation in physiological traits, which needs to be considered in setting rules and recommendations for the transfer of forest reproductive materials. |
| Konôpková, Alena; Húdoková, Hana; Ježík, Marek; Kurjak, Daniel; Jamnická, Gabriela; Ditmarová, Ľubica; Gömöry, Dušan; Longauer, R; Tognetti, Roberto; Pšidová, Eva Origin rather than mild drought stress influenced chlorophyll a fluorescence in contrasting silver fir (Abies alba Mill.) provenances Journal Article Photosynthetica : international journal for photosynthesis research, 58 , pp. 549-559, 2020, ISSN: 0300-3604. Abstract | Links | BibTeX @article{Konôpková2020b,
title = {Origin rather than mild drought stress influenced chlorophyll a fluorescence in contrasting silver fir (\textit{Abies alba Mill.}) provenances},
author = {Alena Konôpková and Hana Húdoková and Marek Ježík and Daniel Kurjak and Gabriela Jamnická and Ľubica Ditmarová and Dušan Gömöry and R. Longauer and Roberto Tognetti and Eva Pšidová},
doi = {10.32615/ps.2020.011},
issn = {0300-3604},
year = {2020},
date = {2020-01-01},
journal = {Photosynthetica : international journal for photosynthesis research},
volume = {58},
pages = {549-559},
abstract = {The performance of PSII photochemistry in five Central European provenances of silver fir differing in the altitude of origin (250-1,300 m a.s.l.) were studied using the chlorophyll a fluorescence parameters derived from the JIP-test. Measurements were performed on two dates in 2016: at the start and at the peak of growing season. Within this period, mild water stress was recorded, allowing us to monitor changes in photochemistry under drought conditions. Our results confirmed that silver fir is generally resistant to water deficit at the PSII level. However, the differences in photochemistry between provenances originating from different climatic conditions were observed. The high-altitude provenances (from wetter and colder localities) achieved higher PSII efficiency, which was also supported by clear trends along the climatic and geographic gradients of the provenance origins. After the drought, comparable PSII efficiency for low-altitude provenances and even higher for these originating in higher altitudes was observed.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The performance of PSII photochemistry in five Central European provenances of silver fir differing in the altitude of origin (250-1,300 m a.s.l.) were studied using the chlorophyll a fluorescence parameters derived from the JIP-test. Measurements were performed on two dates in 2016: at the start and at the peak of growing season. Within this period, mild water stress was recorded, allowing us to monitor changes in photochemistry under drought conditions. Our results confirmed that silver fir is generally resistant to water deficit at the PSII level. However, the differences in photochemistry between provenances originating from different climatic conditions were observed. The high-altitude provenances (from wetter and colder localities) achieved higher PSII efficiency, which was also supported by clear trends along the climatic and geographic gradients of the provenance origins. After the drought, comparable PSII efficiency for low-altitude provenances and even higher for these originating in higher altitudes was observed. |
2019
|
 | Jamnická, Gabriela; Jr., Peter Fleischer; Konôpková, Alena; Pšidová, Eva; Kučerová, Jana; Kurjak, Daniel; Živčák, Marek; Ditmarová, Ľubica Norway Spruce (Picea abies L.) Provenances Use Different Physiological Strategies to Cope with Water Deficit Journal Article Forests, 10 (8), 2019, ISSN: 1999-4907. Abstract | Links | BibTeX @article{Jamnická2019,
title = {Norway Spruce (\textit{Picea abies} L.) Provenances Use Different Physiological Strategies to Cope with Water Deficit},
author = {Gabriela Jamnická and Peter Fleischer Jr. and Alena Konôpková and Eva Pšidová and Jana Kučerová and Daniel Kurjak and Marek Živčák and Ľubica Ditmarová
},
doi = {10.3390/f10080651},
issn = {1999-4907},
year = {2019},
date = {2019-08-01},
journal = {Forests},
volume = {10},
number = {8},
abstract = {Research Highlights: In this study, we found different regulatory mechanisms in two contrasting provenances of Norway spruce responding to progressive drought stress. Background and Objectives: In the context of climate and environmental changes, the following question of high importance in scientific studies is: How will Norway spruce, which forms a dominant component in European mountain and boreal forests, be able to cope with the increasing frequencies and intensities of drought periods? The aim of the study was to investigate the physiological responses of eight-month-old seedlings, as a most vulnerable phase of forest tree life, for different spruce provenances, to find out variable strategies in relation to controlled drought stress. Materials and Methods: We performed an experiment under controlled conditions with spruce seedlings from a climatologically warmer stand of 410 m above sea level (a.s.l.), and a moderately cool stand of 931 m a.s.l. The soil water content, leaf predawn water potential, the osmotic potential of needles, the relative water content of needles, and the photosynthetic performance and the contents of primary metabolites (proline and abscisic acid) were investigated as indicators of the spruce seedlings’ responses to water stress. The status of the indicators was analyzed at different temporal intervals, using repeated measures analysis of variance (ANOVA), reflecting the seedlings’ water conditions (early drought, drought, or recovery). On a daily basis, the differences among the indicators were tested with one-way ANOVA. A principal component analysis (PCA) was used to identify the provenance-specific responses of tree drought indicators in a multi-dimensional data set. Results: The responses to drought stress differed between the provenances. Whereas seedlings of ‘warm’ provenance from a low altitude performed a conservation strategy, with high amounts of accumulated abscisic acid and closing the stomata faster, the reactions of ‘cool’ provenance seedlings from a higher altitude were not so sensitive and the plants’ water supply and photosynthetic performance remained significantly higher. These findings indicate that a higher drought resistance in ‘cool’ provenance could be related to greater amounts of proline amino-acids, which are accumulated from the beginning of the drought simulation. Furthermore, proline accumulation resulting in increased stress tolerance is controlled through another mechanism than osmotic adjustment. Conclusions: The observed variations in the regulatory mechanisms used to develop adaptive strategies in different provenances are an important factor for seedling survival under a changing climate.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Research Highlights: In this study, we found different regulatory mechanisms in two contrasting provenances of Norway spruce responding to progressive drought stress. Background and Objectives: In the context of climate and environmental changes, the following question of high importance in scientific studies is: How will Norway spruce, which forms a dominant component in European mountain and boreal forests, be able to cope with the increasing frequencies and intensities of drought periods? The aim of the study was to investigate the physiological responses of eight-month-old seedlings, as a most vulnerable phase of forest tree life, for different spruce provenances, to find out variable strategies in relation to controlled drought stress. Materials and Methods: We performed an experiment under controlled conditions with spruce seedlings from a climatologically warmer stand of 410 m above sea level (a.s.l.), and a moderately cool stand of 931 m a.s.l. The soil water content, leaf predawn water potential, the osmotic potential of needles, the relative water content of needles, and the photosynthetic performance and the contents of primary metabolites (proline and abscisic acid) were investigated as indicators of the spruce seedlings’ responses to water stress. The status of the indicators was analyzed at different temporal intervals, using repeated measures analysis of variance (ANOVA), reflecting the seedlings’ water conditions (early drought, drought, or recovery). On a daily basis, the differences among the indicators were tested with one-way ANOVA. A principal component analysis (PCA) was used to identify the provenance-specific responses of tree drought indicators in a multi-dimensional data set. Results: The responses to drought stress differed between the provenances. Whereas seedlings of ‘warm’ provenance from a low altitude performed a conservation strategy, with high amounts of accumulated abscisic acid and closing the stomata faster, the reactions of ‘cool’ provenance seedlings from a higher altitude were not so sensitive and the plants’ water supply and photosynthetic performance remained significantly higher. These findings indicate that a higher drought resistance in ‘cool’ provenance could be related to greater amounts of proline amino-acids, which are accumulated from the beginning of the drought simulation. Furthermore, proline accumulation resulting in increased stress tolerance is controlled through another mechanism than osmotic adjustment. Conclusions: The observed variations in the regulatory mechanisms used to develop adaptive strategies in different provenances are an important factor for seedling survival under a changing climate. |
 | Konôpková, Alena; Krajmerová, Diana; Kurjak, Daniel; Kmeť, Jaroslav; Pšidová, Eva; Kučerová, Jana; Hrivnák, Matúš; Longauer, Roman; Ditmarová, Ľubica; Gömöry, Dušan Nucleotide polymorphisms associated with climate and physiological traits in silver fir (Abies alba Mill.) provenances Journal Article Flora : morphology, distribution, functional ecology of plants, 250 , pp. 37-43, 2019, ISSN: 0367-2530. Abstract | Links | BibTeX @article{Konôpková2019,
title = {Nucleotide polymorphisms associated with climate and physiological traits in silver fir (\textit{Abies alba} Mill.) provenances},
author = {Alena Konôpková and Diana Krajmerová and Daniel Kurjak and Jaroslav Kmeť and Eva Pšidová and Jana Kučerová and Matúš Hrivnák and Roman Longauer and Ľubica Ditmarová and Dušan Gömöry},
doi = {10.1016/j.flora.2018.11.012},
issn = {0367-2530},
year = {2019},
date = {2019-01-01},
journal = {Flora : morphology, distribution, functional ecology of plants},
volume = {250},
pages = {37-43},
abstract = {Single-nucleotide polymorphisms in seven candidate genes for drought and heat tolerance identified in earlier studies were studied in 13 populations of Abies alba Mill. covering the eastern and southeastern half of the distribution range. Trees were planted in a provenance trial plot of the international experiment IUFRO 2005 in Hertník, Slovakia. In parallel, genotyped trees were also scored for physiological traits (PSII thermotolerance, chlorophyll a fluorescence kinetics, partly gas exchange, assimilatory pigments, needle osmotic potential). For the detection of natural selection imprints, we used different methods: analysis of FST-outliers, testing of SNP–climate associations and SNP–phenotype associations. FST-outlier analysis revealed 2 SNPs with signals of selection. Moreover, three other SNPs showed significant association with latitude or bioclimatic variables; one of them (C/T polymorphism in a gene coding for serine/threonine phosphatase) was significantly associated with needle osmotic potential and marginally with other drought-related physiological traits. That may indicate its role in drought-stress response. In addition, T/C polymorphism in a gene coding for reduced epidermal fluorescence 4 was found to be involved in heat-stress response. However, migration history seems to be a more important driver of differentiation at SNPs in the studied candidate genes than recent adaptation.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Single-nucleotide polymorphisms in seven candidate genes for drought and heat tolerance identified in earlier studies were studied in 13 populations of Abies alba Mill. covering the eastern and southeastern half of the distribution range. Trees were planted in a provenance trial plot of the international experiment IUFRO 2005 in Hertník, Slovakia. In parallel, genotyped trees were also scored for physiological traits (PSII thermotolerance, chlorophyll a fluorescence kinetics, partly gas exchange, assimilatory pigments, needle osmotic potential). For the detection of natural selection imprints, we used different methods: analysis of FST-outliers, testing of SNP–climate associations and SNP–phenotype associations. FST-outlier analysis revealed 2 SNPs with signals of selection. Moreover, three other SNPs showed significant association with latitude or bioclimatic variables; one of them (C/T polymorphism in a gene coding for serine/threonine phosphatase) was significantly associated with needle osmotic potential and marginally with other drought-related physiological traits. That may indicate its role in drought-stress response. In addition, T/C polymorphism in a gene coding for reduced epidermal fluorescence 4 was found to be involved in heat-stress response. However, migration history seems to be a more important driver of differentiation at SNPs in the studied candidate genes than recent adaptation. |
2018
|
 | Pšidová, E; Živčák, M; adn Orlović, Stojnić S S; Gömöry, D; Kučerová, J; Ditmarová, Ľ; Střelcová, K; Brestič, M; Kalaji, H M Altitude of origin influences the responses of PSII photochemistry to heat waves in European beech (Fagus sylvatica L.) Journal Article Environmental and Experimental Botany, 152 , pp. 97-106, 2018, ISSN: 00988472. Abstract | Links | BibTeX @article{Pšidová2018,
title = {Altitude of origin influences the responses of PSII photochemistry to heat waves in European beech (Fagus sylvatica L.)},
author = {E. Pšidová and M. Živčák and S. Stojnić adn S. Orlović and D. Gömöry and J. Kučerová and Ľ. Ditmarová and K. Střelcová and M. Brestič and H.M. Kalaji},
doi = {10.1016/j.envexpbot.2017.12.001},
issn = {00988472},
year = {2018},
date = {2018-01-01},
journal = {Environmental and Experimental Botany},
volume = {152},
pages = {97-106},
abstract = {The photosynthetic responses to the combined effect of drought and heat stress were studied in leaves of 19-years-old European beech (Fagus sylvatica L.) trees originating from five provenances in Central Europe differing by altitude (55–1250 m), and grown in the same experimental plot. The measurements were conducted at the beginning of heat waves, under two different conditions: during a dry period (middle of July) and after recovery in wetter period, at the beginning of August. The decreases of stomatal conductance (gs) and net photosynthesis rate (ACO2) during drought and heat wave stress were very similar in all provenances. However, we observed distinct response of PSII photochemistry on combined drought and high temperature stress, well associated with altitude of origin of the beech provenances. Measurements of pulse amplitude modulated (PAM) fluorescence identified maintenance of a high electron transport rate in beech provenances from high altitudes under drought and heat wave conditions, associated with some decrease of excitation pressure on PSII. This can be explained by enhanced capacity of alternative electron sinks to utilize the excess of electrons as a photoprotective mechanism. The analyses of fast chlorophyll fluorescence kinetics confirmed the differences in responses of PSII photochemistry between provenances originating from different altitudes. Compared with provenances at higher altitudes, we found more sensitive response (i.e. more limited electron transport at the PSII acceptor side and changes in the size of light harvesting complexes) to drought and heat stress, in those growing at low altitudes. Our results support the hypothesis that the provenances originating from higher altitudes possess enhanced phenotypic plasticity related to photoprotective responses, resulting from the long-term adaptation to marginal mountain conditions.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The photosynthetic responses to the combined effect of drought and heat stress were studied in leaves of 19-years-old European beech (Fagus sylvatica L.) trees originating from five provenances in Central Europe differing by altitude (55–1250 m), and grown in the same experimental plot. The measurements were conducted at the beginning of heat waves, under two different conditions: during a dry period (middle of July) and after recovery in wetter period, at the beginning of August. The decreases of stomatal conductance (gs) and net photosynthesis rate (ACO2) during drought and heat wave stress were very similar in all provenances. However, we observed distinct response of PSII photochemistry on combined drought and high temperature stress, well associated with altitude of origin of the beech provenances. Measurements of pulse amplitude modulated (PAM) fluorescence identified maintenance of a high electron transport rate in beech provenances from high altitudes under drought and heat wave conditions, associated with some decrease of excitation pressure on PSII. This can be explained by enhanced capacity of alternative electron sinks to utilize the excess of electrons as a photoprotective mechanism. The analyses of fast chlorophyll fluorescence kinetics confirmed the differences in responses of PSII photochemistry between provenances originating from different altitudes. Compared with provenances at higher altitudes, we found more sensitive response (i.e. more limited electron transport at the PSII acceptor side and changes in the size of light harvesting complexes) to drought and heat stress, in those growing at low altitudes. Our results support the hypothesis that the provenances originating from higher altitudes possess enhanced phenotypic plasticity related to photoprotective responses, resulting from the long-term adaptation to marginal mountain conditions. |
 | Kučerová, Jana; Konôpková, Alena; Pšidová, Eva; Kurjak, Daniel; Jamnická, Gabriela; Slugenová, Kristína; Gömöry, Dušan; Ditmarová, Ľubica Adaptive variation in physiological traits of beech provenances in Central Europe Journal Article iForest-Biogeosciences and Forestry, 11 (1), pp. 24-31, 2018. Abstract | Links | BibTeX @article{adnKonôpková2018,
title = {Adaptive variation in physiological traits of beech provenances in Central Europe},
author = {Jana Kučerová and Alena Konôpková and Eva Pšidová and Daniel Kurjak and Gabriela Jamnická and Kristína Slugenová and Dušan Gömöry and Ľubica Ditmarová},
doi = {10.3832/ifor2291-010},
year = {2018},
date = {2018-01-01},
journal = {iForest-Biogeosciences and Forestry},
volume = {11},
number = {1},
pages = {24-31},
abstract = { Current climate changes can led to a decline of local beech populations fully adapted to previous climate conditions. In this context, the issue of variation in adaptive traits becomes important. A field experiment with 18-year-old trees of Fagus sylvatica L. was conducted on provenance plot located in Tále (Central Slovakia), where physiological responses of five beech provenances originating from contrasting sites along an altitudinal gradient from 55 to 1100 m a.s.l. across the range of the natural beech distribution were studied. Stomatal characteristics, parameters of chlorophyll a fluorescence and gas exchange parameters were determined. Overall, we observed a significant increase in physiological performance at the leaf level with increasing altitude of origin. Provenances from the higher altitudes showed higher CO2 assimilation rate, stomatal density, potential conductance indices and photochemical efficiency, and lower capability for dissipation of energy by heat. A similar pattern of response was recorded in relation to the precipitation regime of sites of origin. Moreover, in the context of the temperature regime, several negative trends were observed.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Current climate changes can led to a decline of local beech populations fully adapted to previous climate conditions. In this context, the issue of variation in adaptive traits becomes important. A field experiment with 18-year-old trees of Fagus sylvatica L. was conducted on provenance plot located in Tále (Central Slovakia), where physiological responses of five beech provenances originating from contrasting sites along an altitudinal gradient from 55 to 1100 m a.s.l. across the range of the natural beech distribution were studied. Stomatal characteristics, parameters of chlorophyll a fluorescence and gas exchange parameters were determined. Overall, we observed a significant increase in physiological performance at the leaf level with increasing altitude of origin. Provenances from the higher altitudes showed higher CO2 assimilation rate, stomatal density, potential conductance indices and photochemical efficiency, and lower capability for dissipation of energy by heat. A similar pattern of response was recorded in relation to the precipitation regime of sites of origin. Moreover, in the context of the temperature regime, several negative trends were observed. |
2016
|
 | Bolte, A; Czajkowski, T; Cocozza, C; Tognetti, R; De_Miguel, M; Pšídová, E; Ditmarová, Ľ; Dinca, L; Dlezon, S; Cochard, H; Ræbild, A; De_Luis, M; Cvjetkovic, B; Heiri, C; Müller, J Desiccation and Mortality Dynamics in Seedlings of Different European Beech (Fagus sylvatica L.) Populations under Extreme Drought Conditions Journal Article Front. Plant Sci., 7 (751), 2016. Links | BibTeX @article{Bolte2016,
title = {Desiccation and Mortality Dynamics in Seedlings of Different European Beech (Fagus sylvatica L.) Populations under Extreme Drought Conditions},
author = {A. Bolte and T. Czajkowski and C. Cocozza and R. Tognetti and M. De_Miguel and E. Pšídová and Ľ. Ditmarová and L. Dinca and S. Dlezon and H. Cochard and A. Ræbild and M. De_Luis and B. Cvjetkovic and C. Heiri and J. Müller},
doi = {10.3389/fpls.2016.00751},
year = {2016},
date = {2016-01-01},
journal = {Front. Plant Sci.},
volume = {7},
number = {751},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Cocozza, C; De_Miguel, M; Pšidová, E; Ditmarová, Ľ; Marino, S; Maiuro, L; Alvino, A; Czajkowski, T; Bolte, A; Tognetti, R Variation in Ecophysiological Traits and Drought Tolerance of Beech (Fagus sylvatica L.) Seedlings from Different Populations Journal Article Front. Plant Sci., 7 (886), 2016. Links | BibTeX @article{Cocozza2016,
title = {Variation in Ecophysiological Traits and Drought Tolerance of Beech (Fagus sylvatica L.) Seedlings from Different Populations},
author = {C. Cocozza and M. De_Miguel and E. Pšidová and Ľ. Ditmarová and S. Marino and L. Maiuro and A. Alvino and T. Czajkowski and A. Bolte and R. Tognetti},
doi = {10.3389/fpls.2016.00886},
year = {2016},
date = {2016-01-01},
journal = {Front. Plant Sci.},
volume = {7},
number = {886},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2015
|
 | Pšidová, E; Ditmarová, Ľ; Jamnická, G; Kurjak, D; Majerová, J; Czajkowski, T; Bolte, A Photosynthetic response of beech seedlings of different origin to water deficit Journal Article Photosynthetica, 53 (2), pp. 187–194, 2015. Links | BibTeX @article{E.2015,
title = {Photosynthetic response of beech seedlings of different origin to water deficit},
author = {E. Pšidová and Ľ. Ditmarová and G. Jamnická and D. Kurjak and J. Majerová and T. Czajkowski and A. Bolte},
url = {http://link.springer.com/article/10.1007/s11099-015-0101-x},
year = {2015},
date = {2015-03-02},
journal = {Photosynthetica},
volume = {53},
number = {2},
pages = {187–194},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2013
|
 | Jamnická, G; Ditmarová, Ľ; Kurjak, D; Kmeť, J; Pšidová, E; Macková, M; Gömöry, D; Střelcová, K The soil hydrogel improved photosynthetic performance of beech seedlings treated under drought Journal Article Plant Soil and Environment, 59 (10), pp. 446-451, 2013. Links | BibTeX @article{G.2013,
title = {The soil hydrogel improved photosynthetic performance of beech seedlings treated under drought},
author = {G. Jamnická and Ľ. Ditmarová and D. Kurjak and J. Kmeť and E. Pšidová and M. Macková and D. Gömöry and K. Střelcová},
url = {http://www.agriculturejournals.cz/publicFiles/102483.pdf},
year = {2013},
date = {2013-09-10},
journal = {Plant Soil and Environment},
volume = {59},
number = {10},
pages = {446-451},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Ing. Eva Pšidová, PhD.