Influence of the herbicide glyphosate on soil microbial community structure
Identifieur interne : 004944 ( Main/Exploration ); précédent : 004943; suivant : 004945Influence of the herbicide glyphosate on soil microbial community structure
Auteurs : D. A. Wardle [Canada] ; D. Parkinson [Canada]Source :
- Plant and Soil [ 0032-079X ] ; 1990-02-01.
Abstract
Abstract: The side effects of glyphosate on the soil microflora were monitored by applying a range of glyphosate concentrations (0, 2, 20, and 200 μg g−1 herbicide) to incubated soil samples, and following changes in various microbial groups over 27 days. Bacterial propagule numbers were temporarily enhanced by 20 μg g−1 and 200 μg g−1 glyphosate, while actinomycete and fungal propagule numbers were unaffected by glyphosate. The frequency of three fungal species on organic particles in soil was temporarily enhanced by 200 μg g−1 glyphosate, while one was inhibited. One species was temporily enhanced on mineral particles. However, many of these fungi were inhibited by 200 μg g−1 glyphosate in pure culture. There was little agreement between species responses to glyphosate in incubated soil samples and in pure culture.
Url:
DOI: 10.1007/BF02851907
Affiliations:
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A." last="Wardle">D. A. Wardle</name><affiliation wicri:level="4"><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Biological Sciences, University of Calgary, 2500 University Drive N.W., T2N 1N4, Calgary, Alberta</wicri:regionArea><orgName type="university">Université de Calgary</orgName><placeName><settlement type="city">Calgary</settlement><region type="state">Alberta</region></placeName></affiliation></author><author><name sortKey="Parkinson, D" sort="Parkinson, D" uniqKey="Parkinson D" first="D." last="Parkinson">D. 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Bacterial propagule numbers were temporarily enhanced by 20 μg g−1 and 200 μg g−1 glyphosate, while actinomycete and fungal propagule numbers were unaffected by glyphosate. The frequency of three fungal species on organic particles in soil was temporarily enhanced by 200 μg g−1 glyphosate, while one was inhibited. One species was temporily enhanced on mineral particles. However, many of these fungi were inhibited by 200 μg g−1 glyphosate in pure culture. There was little agreement between species responses to glyphosate in incubated soil samples and in pure culture.</div></front></TEI><affiliations><list><country><li>Canada</li></country><region><li>Alberta</li></region><settlement><li>Calgary</li></settlement><orgName><li>Université de Calgary</li></orgName></list><tree><country name="Canada"><region name="Alberta"><name sortKey="Wardle, D A" sort="Wardle, D A" uniqKey="Wardle D" first="D. A." last="Wardle">D. A. Wardle</name></region><name sortKey="Parkinson, D" sort="Parkinson, D" uniqKey="Parkinson D" first="D." last="Parkinson">D. Parkinson</name><name sortKey="Parkinson, D" sort="Parkinson, D" uniqKey="Parkinson D" first="D." last="Parkinson">D. Parkinson</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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