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Histological responses of infection structures and intercellular mycelium of Uromyces phaseoli var. typica and U. phaseoli var. vignae to the HN02-MBTH-FeCl3 and the IKI-H2S04 tests



Histological responses of infection structures and intercellular mycelium of Uromyces phaseoli var. typica and U. phaseoli var. vignae to the HN02-MBTH-FeCl3 and the IKI-H2S04 tests



Physiological Plant Pathology 22(2): 173-179



Identical staining reactions for chitosan, chitin and hexosamine were seen for both U. phaseoli var. typica and U. phaseoli var. vignae No staining was observed in any fungal structure when treated directly with IKI-H2S04 but after autoclaving in alkali to convert chitin to chitosan, this test resulted in a pink-violet colour of the walls of germ tubes, infection structures and intercellular mycelium.

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Accession: 001085265

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