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Nature of Growth-promoting Activity associated with the Culture Filtrates of Fusarium oxysporum f. lycopersici (Sacc.) Snyd. and Hans.

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Abstract

THE growth-promoting activity of the filtrates of the genus Fusarium has long been recognized1–5. Using a bioassay test for auxins, and distilled water as control, Hirata2 detected indolyl-3-acetic acid (IAA) in concentrated filtrates, whereas Venkata Ram3 reported its absence. Their media, in addition to the basal medium (g/1. KH2PO4, 1.5; MgSO4, 1; FeCl3, 0.01; glucose, 25 and nitrogen source, either ammonium sulphate at 2.0 g, or asparagine at 1.99 g and water 1 l. (ref. 5)), were used to culture the fungus to determine indole production.

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Authors and Affiliations

  1. Department of Botany, University of Rhode Island, Kingston, Rhode Island

    A. MAHADEVAN & N. E. CAROSELLI

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  1. A. MAHADEVAN
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  2. N. E. CAROSELLI
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MAHADEVAN, A., CAROSELLI, N. Nature of Growth-promoting Activity associated with the Culture Filtrates of Fusarium oxysporum f. lycopersici (Sacc.) Snyd. and Hans.. Nature 203, 665–666 (1964). https://doi.org/10.1038/203665a0

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