Effect of Oligomeric Acid Iodine Against the Mycelia Growth of Auricularia polytricha Competitive Miscellaneous Fungus(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of Oligomeric Acid Iodine Against the Mycelia Growth of Auricularia polytricha Competitive Miscellaneous Fungus

Author(s):: WANG Qian; SHI Congying; HU Weijing; (College of Life Science，Hebei University/Institute of Edible and Medicinal Fungi，Baoding,Hebei 071002)

Keywords:: oligomeric acid iodine; Auricularia polytricha; Penicillium; Aspergillus; mycelial growth

Abstract:: Taking Auricularia polytricha as material,using the plate punching method and mycelial growth inhibition test，taking mepartricin as positive contrast，water as negative contrast，the control effect of the oligomeric acid iodine on Penicillium and Aspergillus was studied.The results showed that different concentration of oligomeric acid iodine for the spore germination of Penicillium and Aspergillus had different inhibitiry effect.With 10 times to 40 times diluent of oligomeric acid iodine treatment，Penicillium bacteriostatic and Aspergillus circle were in the scope of 8.40-13.14 mm and 8.50-17.30 mm in diameter，respectively，and significant difference existed between concentration gradient.Oligomeric acid iodine diluted 10 times to 40 times on the growth of Penicillium and Aspergillus hyphae had inhibitory effect，and with the increase of dilution ratio，inhibition effect reduced.Diluted 40 times on Penicillium inhibition rate reached 51.48%，slightly lower than the positive control mildew spirit (52.96%).Aspergillus inhibition rate reached 40.57%，slightly lower than the positive control mildew spirit (42.32%)，but considering the view of safety and economy，the recommended concentration of oligomeric acid iodine was 40 times.

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Last Update: 2016-07-11