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Sensitivity to chloropicrin of microsclerotia ofVerticillium dahliae as related to their germination on growth media and in soil

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Abstract

Sensitivity of microsclerotia ofVerticillium dahliae to chloropicrin increased considerably during incubation on Czapek’s medium and in moist soil. However, whereas on a growth medium maximum sensitivity was obtained after 48–96 h, a period of 216–288 h was required to obtain a similar degree of sensitivity of microsclerotia incubated in moist soil. At the end of the incubation period, the microsclerotia which had been incubated in moist soil gave rise to an average of four hyphae per microsclerotium as compared with 130 observed on Czapek’s agar. It is concluded that germination does not play a major role in the increase of sensitivity to chloropicrin during the incubation of microsclerotia ofV. dahliae in moist soil.

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Authors and Affiliations

  1. Dept. of Phytopathology and Microbiology, The Hebrew University of Jerusalem, Faculty of Agriculture, Rehovot, Israel

    J. Bar

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  1. Y. Henis
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  2. J. Bar
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Henis, Y., Bar, J. Sensitivity to chloropicrin of microsclerotia ofVerticillium dahliae as related to their germination on growth media and in soil. Phytoparasitica 1, 95–99 (1973). https://doi.org/10.1007/BF02981038

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  • DOI: https://doi.org/10.1007/BF02981038

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