The effect of herbicides and fungicides on legume-rhizobium symbiosis

Research output: Book chapter/Published conference paperChapter (peer-reviewed)

1 Citation (Scopus)

Abstract

Pesticides may affect symbiosis in several ways: by reducing survival or growth of rhizobia; by inhibiting the nodulation process directly, or indirectly by causing abnormalities in plant growth and metabolism; or by influencing nitrogen fixation. Herbicides are compounds which possess phytotoxic activity. High concentrations of some herbicides induce physiological changes in rhizobia. To effectively supply micronutnents and growth factors necessary for microbial growth in vitro, multiple nutrient sources such as the homogenates of various animal organs or yeast extracts are commonly used. The effect of dinitroaniline herbicides on the growth and symbiosis of legumes has been investigated. The effect of triazine herbicides on the growth and symbiosis of legumes has been the subject of several studies. Protectant fungicides are commonly used to aid in the establishment of legume crops and pastures by protecting the seedlings from soil-borne fungal pathogens. In general, rhizobia are more susceptible to fungicides in vitro than when growing in situ.

Original languageEnglish
Title of host publicationPesticide interactions in crop production
Subtitle of host publicationBeneficial and deleterious effects
EditorsJack Altman
PublisherCRC Press
Chapter9
Pages183-212
Number of pages30
Edition1st
ISBN (Electronic)9781351075459
ISBN (Print)9781315896359
DOIs
Publication statusPublished - 18 Jan 2018

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  • Cite this

    Eberbach, P. L. (2018). The effect of herbicides and fungicides on legume-rhizobium symbiosis. In J. Altman (Ed.), Pesticide interactions in crop production: Beneficial and deleterious effects (1st ed., pp. 183-212). CRC Press. https://doi.org/10.1201/9781351075459