Abstract
The laboratory experiments tested the influence of selected pesticides on the symbiotic efficiency and nitrogenase activity of Rhizobium leguminosarumin bv. trifolii KGL, Sinorhizobiuni melilotii Bp and Badyrhizobium sp. Ornithopus B bacteria entering into symbiosis with clover, lucerne and serradella, respectively. The results obtained indicate that the pesticides used in the experiments (Funaben T seed dressing and Pivot 100SL herbicide) caused reduced nitrogenase activity in active strains tested. In addition, a toxic effect of the applied pesticides on the nodulation and root growth of the tested plants was observed.
MeSH terms
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Benzimidazoles / pharmacology
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Carbamates / pharmacology
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Fabaceae / growth & development
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Fabaceae / microbiology*
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Medicago / growth & development
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Medicago / microbiology
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Medicago sativa / growth & development
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Medicago sativa / microbiology
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Nicotinic Acids / pharmacology
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Nitrogenase / metabolism*
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Pesticides / pharmacology*
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Rhizobiaceae / classification
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Rhizobiaceae / drug effects*
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Rhizobiaceae / enzymology
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Rhizobiaceae / growth & development
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Seeds / growth & development
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Seeds / microbiology
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Symbiosis / drug effects*
Substances
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Benzimidazoles
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Carbamates
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Nicotinic Acids
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Pesticides
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imazethapyr
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Nitrogenase
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carbendazim