By Hans-Rolf Gregorius (auth.), Florian Scholz, Hans-Rolf Gregorius, Dag Rudin (eds.)
Air toxins supply environmental stipulations that vastly range in lots of respects from these to which wooded area timber are certainly tailored. major specialists within the box the following ponder those questions of rapid relevance bobbing up from the altering atmosphere: (1) Do air toxins introduce results of choice that fluctuate from these identified for populations that aren't topic to such pressure stipulations? (2) If air toxins introduce quantitatively or maybe qualitatively novel selective results, which results may well come up from the variation of wooded area tree populations to the current stipulations in addition to for the maintenance of adaptability to destiny stipulations? as well as those questions, suggestions for upkeep of genetic assets are discussed.
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Additional resources for Genetic Effects of Air Pollutants in Forest Tree Populations: Proceedings of the Joint Meeting of the IUFRO Working Parties Genetic Aspects of Air Pollution Population and Ecological Genetics Biochemical Genetics held in Großhansdorf, August 3–7, 1987
24* for S02-03. This means that each pollutant will cause a specific selection pressure to different parts of the respective population and, as in polluted stands various pollutants are nomally involved, additionally the interactions between the pollutants will complicate the picture. Furthermore, these low correlations indicate that there is no general pollution resistance and that effect mechanisms as well as resistance mechanisms are different for different pollutants, which is in accordance with biochemical results (Kozlowski and Constantinidou, 1986a).
Phytopatholoe;y 55:404- 407 Dochinger LS, Seliskar CE (1970) Air pollution and the chlorotic dwarf disease of eastern white pine. For Sci 16:46-55 Farrar JF, Relton J, Rutter AJ (1977) Sulphur dioxide and the scarcity of Pinus sylvestris in the industrial pennines. ) Karst. seedlings and genetic differences between their mother trees as studied by isozyme-gene-markers. , Vornweg, A (1987) Genetic studies by isozyme gene loci on tolerance and sensitivity in an air polluted Pinus sylvestris field trial.
1986). Scholz et al. , (1985) showed large amounts of tree to tree variation in pollen sensitivity with Scots pine and S02. Aspen as a model genetic system Trembling aspen, an important fiber-producing species and the most widely distributed tree species in North America, has been studied in sufficient detail to be useful as a model genetic system. The species is generally sensitive, but highly variable in response to sulfur dioxide and ozone (Karnosky, 1976), and there is evidence that variation in the response to air pollution is under strong genetic control (Karnosky, 1977).