scholarly journals Impairment of gas exchange and structure in birch leaves (Betula pendula) caused by low ozone concentrations

Trees ◽  
1991 ◽  
Vol 5 (1) ◽  
Author(s):  
Rainer Matyssek ◽  
MadeleineS. G�nthardt-Goerg ◽  
Theodor Keller ◽  
Christoph Scheidegger
Keyword(s):  
Gas Exchange ◽  
Betula Pendula ◽  
Ozone Concentrations

Effects of ozone impact on the gas exchange and chlorophyll fluorescence of juvenile birch stems (Betula pendula Roth.)

2007 ◽  
Vol 150 (2) ◽  
pp. 258-266 ◽  
Author(s):  
Christiane Wittmann ◽  
Rainer Matyssek ◽  
Hardy Pfanz ◽  
Maja Humar
Keyword(s):  
Chlorophyll Fluorescence ◽  
Gas Exchange ◽  
Betula Pendula ◽  
Betula Pendula Roth

Differences in growth and gas exchange between southern and northern provenances of silver birch (Betula pendula Roth) in northern Europe

2019 ◽  
Vol 40 (2) ◽  
pp. 198-214 ◽  
Author(s):  
Antti Tenkanen ◽  
Sarita Keski-Saari ◽  
Jarkko Salojärvi ◽  
Elina Oksanen ◽  
Markku Keinänen ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Water Use ◽  
Betula Pendula ◽  
Net Photosynthesis ◽  
Height Growth ◽  
Silver Birch ◽  
Short Shoot ◽  
Photosynthetic Gas Exchange ◽  
Betula Pendula Roth ◽  
Intrinsic Water Use Efficiency

Abstract Due to its ubiquity across northern latitudes, silver birch (Betula pendula Roth) is an attractive model species for studying geographical trait variation and acclimation capacity. Six birch provenances from 60 to 67°N across Finland were grown in a common garden and studied for provenance and genotype variation. We looked for differences in height growth, photosynthetic gas exchange and chlorophyll content index (CCI) and compared the gas exchange of early and late leaves on short and long shoots, respectively. The provenances stratified into southern and northern groups. Northern provenances attained less height growth increment and had higher stomatal conductance (gs) and lower intrinsic water-use efficiency (WUE, Anet/gs) than southern provenances, whereas net photosynthesis (Anet) or CCI did not show clear grouping. Short shoot leaves had lower gs and higher WUE than long shoot leaves in all provenances, but there was no difference in Anet between shoot types. The separation of the provenances into two groups according to their physiological responses might reflect the evolutionary history of B. pendula. Latitudinal differences in gas exchange and water use traits can have plausible consequences for global carbon and water fluxes in a warming climate.

Interactive effect of elevated temperature and O3 on antioxidant capacity and gas exchange in Betula pendula saplings

Planta ◽  
2009 ◽  
Vol 230 (2) ◽  
pp. 419-427 ◽  
Author(s):  
Johanna Riikonen ◽  
Maarit Mäenpää ◽  
Marjo Alavillamo ◽  
Tarja Silfver ◽  
Elina Oksanen
Keyword(s):  
Elevated Temperature ◽  
Gas Exchange ◽  
Antioxidant Capacity ◽  
Betula Pendula ◽  
Interactive Effect

scholarly journals Effects of above-limit ground-level ozone concentrations on the health condition of the silver birch (Betula pendula Roth) assimilation apparatus within the period of 2009–2011

Beskydy ◽  
2012 ◽  
Vol 5 (1) ◽  
pp. 37-42
Author(s):  
Emilie Bednářová
Keyword(s):  
Betula Pendula ◽  
Ground Level ◽  
Health Condition ◽  
Silver Birch ◽  
Epicuticular Waxes ◽  
Tree Stand ◽  
Ground Level Ozone ◽  
Ozone Concentrations ◽  
Analysis Of Results ◽  
Epicuticular Layer

Effects of above-limit ground-level ozone concentrations on the health condition of the silver birch (Betula pendula Roth) assimilation apparatus was monitored using the method of study of changes in epicuticular waxes. These waxes are present on the surface of leaves and protect the plant (and, especially, its assimilation apparatus) against negative environmental effects. Studies were performed in a tree stand of the 2nd age category in altitudes ranging from 600 to 1,050 m in the Ore Mountains (Krušné hory in Czech). It was found out that, as compared with a control stand, the thickness of the wax epicuticular layer decreased with the increasing altitude while concentrations of the ground-level ozone increased. A visible damage of the assimilation apparatus was observed in localities with the highest concentrations of ground-level ozone. Here, not only an overall decrease in the amount of epicuticular waxes was observed but also a degradation of their structure. A statistical analysis of results proved that the loss of epicuticular waxes was significantly dependent on above-limit concentrations of ground-level ozone.

scholarly journals Seasonal growth, ?13C in leaves and stem, and phloem structure of birch (Betula pendula) under low ozone concentrations

Trees ◽  
1992 ◽  
Vol 6 (2) ◽  
Author(s):  
Rainer Matyssek ◽  
MadeleineS. G�nthardt-Goerg ◽  
Matthias Saurer ◽  
Theodor Keller
Keyword(s):  
Betula Pendula ◽  
Seasonal Growth ◽  
Ozone Concentrations ◽  
Phloem Structure
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