TY  - JOUR
AU  - Machacova, Marketa
AU  - Tomaskova, Ivana
AU  - Corcobado, Tamara
AU  - Nagy, Zoltan
AU  - Milanović, Slobodan
AU  - Janousek, Josef
AU  - Peskova, Vitezslava
AU  - Cepl, Jaroslav
AU  - Gezan, Salvador
AU  - Nakladal, Oto
AU  - Zumr, Vaclav
AU  - Kalyniukova, Alina
AU  - Milenković, Ivan
AU  - Jung, Thomas
PY  - 2024
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1522
AB  - Introduction: Mortality of the riparian alder population caused by Phytophthora pathogens has been studied for over 20 years throughout Europe, recently gaining more importance in the context of evident climate change. The main objective of this study was to examine the pathogenicity of species from the "Phytophthora alni complex" present in the Czech Republic (P. x alni and P. uniformis) and P. plurivora to Alnus glutinosa seedlings grown at ambient and elevated CO2 concentration. Methods: An underbark inoculation test was performed with seedlings grown from seeds collected from two Czech alder populations, one suffering from severe Phytophthora decline and the other disease-free. Results: The results showed significant differences in lesion development and seedling mortality. After a 13-week experimental period, at both CO2 levels P. x alni and P. uniformis showed high aggressiveness to A. glutinosa seedlings causing lesions of variable sizes and mortality of 33.3%, and 45.8% of plants, respectively. In contrast, P. plurivora did not cause mortality to any plant, and lesion sizes did not differ significantly from those in control plants. Physiological measurements did not reveal any significant differences between Phytophthora species except for plants inoculated with P. plurivora showing increased values in specific physiological parameters 4 weeks post-inoculation. Net photosynthesis decreased over the measurement period in all treatments with significant differences found between measurements conducted 2 and 4 weeks after the inoculation. Transpiration showed a decreasing trend in all inoculated plants with no significant differences between Phytophthora species at both CO2 levels. Chemical analyses of root samples showed high variability in sugars and phenolic compounds related to the plant's health status. Discussion: This is the first study to examine the response of alder seedlings to Phytophthora pathogens at different CO2 levels. The findings demonstrate high aggressiveness of P. x alni and P. uniformis and weaker aggressiveness of P. plurivora to alder seedlings regardless of the CO2 level.
T2  - Frontiers in Forests and Global Change
T1  - Response of Alnus glutinosa to Phytophthora bark infections at ambient and elevated CO 2 levels
VL  - 7
DO  - 10.3389/ffgc.2024.1379791
UR  - conv_1782
ER  - 

@article{
author = "Machacova, Marketa and Tomaskova, Ivana and Corcobado, Tamara and Nagy, Zoltan and Milanović, Slobodan and Janousek, Josef and Peskova, Vitezslava and Cepl, Jaroslav and Gezan, Salvador and Nakladal, Oto and Zumr, Vaclav and Kalyniukova, Alina and Milenković, Ivan and Jung, Thomas",
year = "2024",
abstract = "Introduction: Mortality of the riparian alder population caused by Phytophthora pathogens has been studied for over 20 years throughout Europe, recently gaining more importance in the context of evident climate change. The main objective of this study was to examine the pathogenicity of species from the "Phytophthora alni complex" present in the Czech Republic (P. x alni and P. uniformis) and P. plurivora to Alnus glutinosa seedlings grown at ambient and elevated CO2 concentration. Methods: An underbark inoculation test was performed with seedlings grown from seeds collected from two Czech alder populations, one suffering from severe Phytophthora decline and the other disease-free. Results: The results showed significant differences in lesion development and seedling mortality. After a 13-week experimental period, at both CO2 levels P. x alni and P. uniformis showed high aggressiveness to A. glutinosa seedlings causing lesions of variable sizes and mortality of 33.3%, and 45.8% of plants, respectively. In contrast, P. plurivora did not cause mortality to any plant, and lesion sizes did not differ significantly from those in control plants. Physiological measurements did not reveal any significant differences between Phytophthora species except for plants inoculated with P. plurivora showing increased values in specific physiological parameters 4 weeks post-inoculation. Net photosynthesis decreased over the measurement period in all treatments with significant differences found between measurements conducted 2 and 4 weeks after the inoculation. Transpiration showed a decreasing trend in all inoculated plants with no significant differences between Phytophthora species at both CO2 levels. Chemical analyses of root samples showed high variability in sugars and phenolic compounds related to the plant's health status. Discussion: This is the first study to examine the response of alder seedlings to Phytophthora pathogens at different CO2 levels. The findings demonstrate high aggressiveness of P. x alni and P. uniformis and weaker aggressiveness of P. plurivora to alder seedlings regardless of the CO2 level.",
journal = "Frontiers in Forests and Global Change",
title = "Response of Alnus glutinosa to Phytophthora bark infections at ambient and elevated CO 2 levels",
volume = "7",
doi = "10.3389/ffgc.2024.1379791",
url = "conv_1782"
}

Machacova, M., Tomaskova, I., Corcobado, T., Nagy, Z., Milanović, S., Janousek, J., Peskova, V., Cepl, J., Gezan, S., Nakladal, O., Zumr, V., Kalyniukova, A., Milenković, I.,& Jung, T.. (2024). Response of Alnus glutinosa to Phytophthora bark infections at ambient and elevated CO 2 levels. in Frontiers in Forests and Global Change, 7.
https://doi.org/10.3389/ffgc.2024.1379791
conv_1782

Machacova M, Tomaskova I, Corcobado T, Nagy Z, Milanović S, Janousek J, Peskova V, Cepl J, Gezan S, Nakladal O, Zumr V, Kalyniukova A, Milenković I, Jung T. Response of Alnus glutinosa to Phytophthora bark infections at ambient and elevated CO 2 levels. in Frontiers in Forests and Global Change. 2024;7.
doi:10.3389/ffgc.2024.1379791
conv_1782 .

Machacova, Marketa, Tomaskova, Ivana, Corcobado, Tamara, Nagy, Zoltan, Milanović, Slobodan, Janousek, Josef, Peskova, Vitezslava, Cepl, Jaroslav, Gezan, Salvador, Nakladal, Oto, Zumr, Vaclav, Kalyniukova, Alina, Milenković, Ivan, Jung, Thomas, "Response of Alnus glutinosa to Phytophthora bark infections at ambient and elevated CO 2 levels" in Frontiers in Forests and Global Change, 7 (2024),
https://doi.org/10.3389/ffgc.2024.1379791 .,
conv_1782 .