A New Heart Rot Disease in Ailanthus excelsa Roxb. Caused by Navisporus floccosus (Bres.) Ryvarden

N. Praveen Kumar; Arun Arya

doi:10.56431/p-yd2kd5

Paper Titles

A New Heart Rot Disease in Ailanthus excelsa Roxb. Caused by Navisporus floccosus (Bres.) Ryvarden
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Seasonal Changes of Sedimentation Rates and Sediment Characteristics Status in the Gulf of Mannar Coral Island, India
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Studies on the Performance of Different Genotypes of Cauliflower Grown in Plains and Higher Altitude of Kerala
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Tourism Potential and Rural Tourism: A Case Study of the Municipality of Andrijevica
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Biocatalytic Ketone Reduction - A Study on Screening and Effect of Culture Conditions on the Reduction of Selected Ketones
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Influence of Biofertilizers on Protein, Moisture and Ash Content in Relation to Swelling Property, Water Absorption Capacity, Mineral Elements, Total Phenolic Level of Stevia (Stevia rebaudiana Bert.) Plant Grown under Acidic Soil Zone of South India
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HomeInternational Letters of Natural SciencesInternational Letters of Natural Sciences Vol. 6A New Heart Rot Disease in Ailanthus excelsa Roxb....

A New Heart Rot Disease in Ailanthus excelsa Roxb. Caused by Navisporus floccosus (Bres.) Ryvarden

Abstract:

A wood decay fungus was defined based on the zone of tree that invades. N. floccosus causing heart rot was recorded in living trees of A. excelsa for the first time. The cultural characters of N. floccosus were described for the first time. Heart rot fungus i.e. N. floccosus decayed mostly heartwood of living tree. It colonized in the central portion of tree and begins decaying of wood which ultimately lead to death of A. excelsa tree was recognized for the first time. When decay proceed to the top of tree, the fruiting bodies grown in large size at butt region. During July 2007 i.e. monsoon months, due to the high wind velocity the weak tree was up rooted, which indicates that the fungus severely decayed heartwood of A. excelsa tree. After falling the tree, fungal hyphae in heart wood were very active so it produced fruiting bodies outside the trunk. On the malt agar plates containing tannic acid, it showed a positive reaction for oxidase and laccase and negative reaction for tyrosinase. Peroxidase test was positive with growth rate of >70 mm in 7 days.