Description: Das Projekt "Untersuchung zu den Auswirkungen der Luftverschmutzung auf die Reproduktion von Waldbaeumen" wird vom Umweltbundesamt gefördert und von Bundesforschungsanstalt für Forst- und Holzwirtschaft durchgeführt. Objective: To investigate the effects of air pollutants on genetic structure of forest trees and assess the potential risk of genetic losses. General information: this research project will focus on two main aspects: 1) investigations on inhibition of pollen germination in scoots pine with respect to fertility selection. Preliminary investigations have shown that sensitivity of pollen germination shows tree to tree variation. This is important with respect to fertility selection. Pollen from clones from the scoots pine clone collection off the institute will be tested in vitro under controlled fumigation conditions in relation to control conditions and investigated by light microscopy for pollen germination and pollen tube growth. With respect to the investigations planned under 2 a greater number of clones is to be tested. Parts of the material will also be investigated by electron microscopy for special questions (co-operation with dr. U. Schmitt, institute for wood biology and wood preservation, BFH). 2) investigations on the genetic structure in the plant material of 2.1 by gene-markers. If the results from 1 reveal sufficient variation (which is to be expected from preliminary investigations), groups of individuals with different sensitivity will be investigated for their genetic structure (degree of heterozygosity, genetic diversity etc.) Shall be obtained to estimate selective effects of air pollutants. Achievements: An open top facility was installed on the ground of the Fraunhofer-Institut in Schmallenberg. The influence of sulphur dioxide, ozone and nitrogen dioxide as well as several climatic factors on young Norway spruces were investigated. Data concerning biochemical, histological and physiological parameters were obtained. An open top facility was installed on the ground on the Fraunhofer-Institut in Schmallenberg. The influence of sulphur dioxide, ozone and nitrogen dioxide as well as several climatic factors on young Norway spruces were investigated. Data concerning biochemical, histological and physiological parameters were obtained. A prototype was made available on 01/10/90.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Gemeine Fichte ? Fichte ? Gen ? Kiefer ? Ozon ? Messstation ? Nadelbaum ? Pflanzenphysiologie ? Waldbaum ? Genetische Variation ? Elektronenmikroskopie ? Baum ? Biochemie ? Schadstoffwirkung ? Stickstoffdioxid ? Tracer ? Umweltauswirkung ? Lichtmikroskopie ? Main ? Gentechnik ? Schwefeldioxid ? U-Bahn ? Luftverschmutzung ? Holzschutz ? Kontrollmaßnahme ? Fruchtbarkeit ? Daten ? Gentechnisch veränderte Organismen ? Risikoanalyse ? Holzindustrie ? Luftschadstoff ? Forschungsprojekt ? in vitro ? Genetische Vielfalt ? Keimfähigkeit ? Klimafaktor ? Forstwirtschaft ? Klimawirkung ? Organismen ? Umweltschutz ? Pollen ? Datenerhebung ? Keimung ? Kenngröße ? Histologie ? Diversität ? Untersuchungsprogramm ? Wachstumsstörung ? Klon ? Pflanzenwachstum ? Pollentransport ? Prototyp ?
Region: Hamburg
Bounding box: 9.99302° .. 9.99302° x 53.55073° .. 53.55073°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1988-01-01 - 1990-12-31
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