The Experts below are selected from a list of 14136 Experts worldwide ranked by ideXlab platform
Tadeusz Kowalski - One of the best experts on this subject based on the ideXlab platform.
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Tubakia dryina, symptoms and pathogenicity to Quercus Robur
Acta Mycologica, 2013Co-Authors: Tadeusz KowalskiAbstract:In 1999 disease symptoms on leaves of Quercus Robur – necrosis, deformation and blackening of leaf petiole, followed by premature leaf fall were observed. Tubakia dryina was isolated from necrotic tissues and its pathogenicity to oak proved in infection experiments. The fungus caused necrosis of shoots and leaves. Dying leaves displayed also blackening of leaf petiole.
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Sporothrix inflata, a root-inhabiting fungus of Quercus Robur and Q. petraea
Mycological Progress, 2003Co-Authors: E. Halmschlager, Tadeusz KowalskiAbstract:The anamorphic fungus Sporothrix inflata , known as a soil-borne fungus with worldwide distribution, was isolated for the first time from the cortex and central cylinder of living and dead roots of healthy and diseased oak trees ( Quercus Robur and Q. petraea ). Isolation frequencies of S. inflata from oak roots varied according to the health status of trees, oak species, study sites, soil depth and root diameter. Colony morphology and growth rate of isolates are influenced by colony age and type of culture medium.
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Cryptosporiopsis melanigena sp. nov., a root-inhabiting fungus of Quercus Robur and Q. petraea
Mycological Research, 1998Co-Authors: Tadeusz Kowalski, E. Halmschlager, K. SchraderAbstract:A new species of Cryptosporiopsis is described. It was isolated frequently from roots of healthy-looking and declining oaks (Quercus Robur and Q. petraea). The relationship to C. radicicola, a similar species also occurring on oak roots, is discussed. The new species is separated from C. radicicola by means of morphological and physiological characters, genomic analysis by the PCR-based RAPD technique as well as by the production of metabolites.
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Cryptosporiopsis radicicola sp. nov. from roots of Quercus Robur
Mycological Research, 1995Co-Authors: Tadeusz Kowalski, C BartnikAbstract:A new species of the coelomycete genus Cryptosporiopsis is described. The fungus is one of the most frequent species on roots of Quercus Robur in Poland.
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Fungal assemblages in stem and twig lesions of Quercus Robur in Switzerland
Mycological Research, 1995Co-Authors: Thomas N. Sieber, Tadeusz Kowalski, Ottmar HoldenriederAbstract:Fungal assemblages present in necrotic tissues of Quercus Robur were determined at two sites in Switzerland. Fungi were identified by examination of fruitbodies or by isolation. Assemblages differed with location (stem or twig), tissue source (xylem or bark), method of detection (isolation or inspection), stage of damage, and between sites. Dominant fungi in stem lesions were Amphiporthe leiphaemia, Pezicula cinnamomea, Phomopsis quercella, Fusarium sp., and Dichomera saubinetii . In diseased twig tissues A. leiphaemia and Colpoma quercinum, Fusarium sp., and P. cinnamomea were the most common. It is suggested that the lesions were induced by drought followed by a high frost incidence but that fungi may have been contributory.
Daniele Castagneri - One of the best experts on this subject based on the ideXlab platform.
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Xylem anatomy of Robinia pseudoacacia L. and Quercus Robur L. is differently affected by climate in a temperate alluvial forest
Annals of Forest Science, 2020Co-Authors: Paola Nola, Francesco Bracco, Silvia Assini, Georg Arx, Daniele CastagneriAbstract:Key message Xylem hydraulic traits of native Quercus Robur are more sensitive to previous-summer drought than those of alien Robinia pseudoacacia. The latter modulates vessel traits and ring porosity to cope with inter-annual climate variability, and is less affected by extreme events. This suggests that R. pseudoacacia might be more competitive under future drier conditions . Context Forest management strategies require knowledge on how co-occurring native and alien species respond to unprecedented climate conditions, which can severely affect xylem conductivity and tree performance. Aims We aimed at quantitatively comparing xylem anatomical traits of co-occurring native Quercus Robur and alien Robinia pseudoacacia and assessing similarities and differences in their response to climate variability. Methods We analyzed tree-ring anatomy and built chronologies of several parameters related to vessel number, size, and theoretical conductivity. Mean chronologies for each parameter were correlated to monthly temperature and precipitation data for the period 1954–2005 and within 30-year moving windows. We also assessed responses to extreme conditions in 2003. Results Quercus Robur showed typical ring-porous vessel distribution, while R. pseudoacacia modulated vessel size and number year by year, frequently showing semi-ring porous appearance. Previous rainy summers increased size of large vessels in Q. Robur , and number of large vessels in R. pseudoacacia . In winter, R. pseudoacacia was sensitive to water excess. High temperature in March increased vessel size in Q. Robur , but reduced it in R. pseudoacacia . The 2003 summer heatwave strongly reduced vessel size and number in the following year in Q. Robur , but had much less effect on R. pseudoacacia . Conclusion Quercus Robur xylem traits are more influenced by both inter-annual climate variability and extreme events than those of R. pseudoacacia . Lower performance under dry conditions might reduce competitiveness of Q. Robur in the future, slowing down the natural replacement of the invasive pioneer R. pseudoacacia by later-stage Q. Robur .
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Xylem anatomy of Robinia pseudoacacia L. and Quercus Robur L. is differently affected by climate in a temperate alluvial forest
Annals of Forest Science, 2020Co-Authors: Paola Nola, Francesco Bracco, Silvia Assini, Georg Von Arx, Daniele CastagneriAbstract:Key message Xylem hydraulic traits of native Quercus Robur are more sensitive to previous-summer drought than those of alien Robinia pseudoacacia. The latter modulates vessel traits and ring porosity to cope with inter-annual climate variability, and is less affected by extreme events. This suggests that R. pseudoacacia might be more competitive under future drier conditions.
Paola Nola - One of the best experts on this subject based on the ideXlab platform.
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Xylem anatomy of Robinia pseudoacacia L. and Quercus Robur L. is differently affected by climate in a temperate alluvial forest
Annals of Forest Science, 2020Co-Authors: Paola Nola, Francesco Bracco, Silvia Assini, Georg Arx, Daniele CastagneriAbstract:Key message Xylem hydraulic traits of native Quercus Robur are more sensitive to previous-summer drought than those of alien Robinia pseudoacacia. The latter modulates vessel traits and ring porosity to cope with inter-annual climate variability, and is less affected by extreme events. This suggests that R. pseudoacacia might be more competitive under future drier conditions . Context Forest management strategies require knowledge on how co-occurring native and alien species respond to unprecedented climate conditions, which can severely affect xylem conductivity and tree performance. Aims We aimed at quantitatively comparing xylem anatomical traits of co-occurring native Quercus Robur and alien Robinia pseudoacacia and assessing similarities and differences in their response to climate variability. Methods We analyzed tree-ring anatomy and built chronologies of several parameters related to vessel number, size, and theoretical conductivity. Mean chronologies for each parameter were correlated to monthly temperature and precipitation data for the period 1954–2005 and within 30-year moving windows. We also assessed responses to extreme conditions in 2003. Results Quercus Robur showed typical ring-porous vessel distribution, while R. pseudoacacia modulated vessel size and number year by year, frequently showing semi-ring porous appearance. Previous rainy summers increased size of large vessels in Q. Robur , and number of large vessels in R. pseudoacacia . In winter, R. pseudoacacia was sensitive to water excess. High temperature in March increased vessel size in Q. Robur , but reduced it in R. pseudoacacia . The 2003 summer heatwave strongly reduced vessel size and number in the following year in Q. Robur , but had much less effect on R. pseudoacacia . Conclusion Quercus Robur xylem traits are more influenced by both inter-annual climate variability and extreme events than those of R. pseudoacacia . Lower performance under dry conditions might reduce competitiveness of Q. Robur in the future, slowing down the natural replacement of the invasive pioneer R. pseudoacacia by later-stage Q. Robur .
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Xylem anatomy of Robinia pseudoacacia L. and Quercus Robur L. is differently affected by climate in a temperate alluvial forest
Annals of Forest Science, 2020Co-Authors: Paola Nola, Francesco Bracco, Silvia Assini, Georg Von Arx, Daniele CastagneriAbstract:Key message Xylem hydraulic traits of native Quercus Robur are more sensitive to previous-summer drought than those of alien Robinia pseudoacacia. The latter modulates vessel traits and ring porosity to cope with inter-annual climate variability, and is less affected by extreme events. This suggests that R. pseudoacacia might be more competitive under future drier conditions.
Silvia Assini - One of the best experts on this subject based on the ideXlab platform.
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Xylem anatomy of Robinia pseudoacacia L. and Quercus Robur L. is differently affected by climate in a temperate alluvial forest
Annals of Forest Science, 2020Co-Authors: Paola Nola, Francesco Bracco, Silvia Assini, Georg Arx, Daniele CastagneriAbstract:Key message Xylem hydraulic traits of native Quercus Robur are more sensitive to previous-summer drought than those of alien Robinia pseudoacacia. The latter modulates vessel traits and ring porosity to cope with inter-annual climate variability, and is less affected by extreme events. This suggests that R. pseudoacacia might be more competitive under future drier conditions . Context Forest management strategies require knowledge on how co-occurring native and alien species respond to unprecedented climate conditions, which can severely affect xylem conductivity and tree performance. Aims We aimed at quantitatively comparing xylem anatomical traits of co-occurring native Quercus Robur and alien Robinia pseudoacacia and assessing similarities and differences in their response to climate variability. Methods We analyzed tree-ring anatomy and built chronologies of several parameters related to vessel number, size, and theoretical conductivity. Mean chronologies for each parameter were correlated to monthly temperature and precipitation data for the period 1954–2005 and within 30-year moving windows. We also assessed responses to extreme conditions in 2003. Results Quercus Robur showed typical ring-porous vessel distribution, while R. pseudoacacia modulated vessel size and number year by year, frequently showing semi-ring porous appearance. Previous rainy summers increased size of large vessels in Q. Robur , and number of large vessels in R. pseudoacacia . In winter, R. pseudoacacia was sensitive to water excess. High temperature in March increased vessel size in Q. Robur , but reduced it in R. pseudoacacia . The 2003 summer heatwave strongly reduced vessel size and number in the following year in Q. Robur , but had much less effect on R. pseudoacacia . Conclusion Quercus Robur xylem traits are more influenced by both inter-annual climate variability and extreme events than those of R. pseudoacacia . Lower performance under dry conditions might reduce competitiveness of Q. Robur in the future, slowing down the natural replacement of the invasive pioneer R. pseudoacacia by later-stage Q. Robur .
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Xylem anatomy of Robinia pseudoacacia L. and Quercus Robur L. is differently affected by climate in a temperate alluvial forest
Annals of Forest Science, 2020Co-Authors: Paola Nola, Francesco Bracco, Silvia Assini, Georg Von Arx, Daniele CastagneriAbstract:Key message Xylem hydraulic traits of native Quercus Robur are more sensitive to previous-summer drought than those of alien Robinia pseudoacacia. The latter modulates vessel traits and ring porosity to cope with inter-annual climate variability, and is less affected by extreme events. This suggests that R. pseudoacacia might be more competitive under future drier conditions.
Francesco Bracco - One of the best experts on this subject based on the ideXlab platform.
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Xylem anatomy of Robinia pseudoacacia L. and Quercus Robur L. is differently affected by climate in a temperate alluvial forest
Annals of Forest Science, 2020Co-Authors: Paola Nola, Francesco Bracco, Silvia Assini, Georg Arx, Daniele CastagneriAbstract:Key message Xylem hydraulic traits of native Quercus Robur are more sensitive to previous-summer drought than those of alien Robinia pseudoacacia. The latter modulates vessel traits and ring porosity to cope with inter-annual climate variability, and is less affected by extreme events. This suggests that R. pseudoacacia might be more competitive under future drier conditions . Context Forest management strategies require knowledge on how co-occurring native and alien species respond to unprecedented climate conditions, which can severely affect xylem conductivity and tree performance. Aims We aimed at quantitatively comparing xylem anatomical traits of co-occurring native Quercus Robur and alien Robinia pseudoacacia and assessing similarities and differences in their response to climate variability. Methods We analyzed tree-ring anatomy and built chronologies of several parameters related to vessel number, size, and theoretical conductivity. Mean chronologies for each parameter were correlated to monthly temperature and precipitation data for the period 1954–2005 and within 30-year moving windows. We also assessed responses to extreme conditions in 2003. Results Quercus Robur showed typical ring-porous vessel distribution, while R. pseudoacacia modulated vessel size and number year by year, frequently showing semi-ring porous appearance. Previous rainy summers increased size of large vessels in Q. Robur , and number of large vessels in R. pseudoacacia . In winter, R. pseudoacacia was sensitive to water excess. High temperature in March increased vessel size in Q. Robur , but reduced it in R. pseudoacacia . The 2003 summer heatwave strongly reduced vessel size and number in the following year in Q. Robur , but had much less effect on R. pseudoacacia . Conclusion Quercus Robur xylem traits are more influenced by both inter-annual climate variability and extreme events than those of R. pseudoacacia . Lower performance under dry conditions might reduce competitiveness of Q. Robur in the future, slowing down the natural replacement of the invasive pioneer R. pseudoacacia by later-stage Q. Robur .
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Xylem anatomy of Robinia pseudoacacia L. and Quercus Robur L. is differently affected by climate in a temperate alluvial forest
Annals of Forest Science, 2020Co-Authors: Paola Nola, Francesco Bracco, Silvia Assini, Georg Von Arx, Daniele CastagneriAbstract:Key message Xylem hydraulic traits of native Quercus Robur are more sensitive to previous-summer drought than those of alien Robinia pseudoacacia. The latter modulates vessel traits and ring porosity to cope with inter-annual climate variability, and is less affected by extreme events. This suggests that R. pseudoacacia might be more competitive under future drier conditions.
