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Singh, T., and Sinclair, J. B. 1985. Histopathology of Cercospora sojina in soybean seeds. Phytopathology 75:185-189.Soybean seeds were collected from plants either uninoculated or inoculated plants, hyphal mats in parenchymatous seed coat tissues as well inoculated separately with one of eight isolates of Cercospora sojina. Seeds as hyphal aggregates, which varied in size and number, were associated with infected by C. sojina were discolored gray to dark brown. Histopathological fungal hyphae. Hyphal aggregates were abundant in the hilar region, and scanning electron microscope studies showed the presence of hyphae of moderately common in the seed coat layers, found occasionally on the seed C. sojina within the seed coat tissues of seeds from plants inoculated with all surface and in the space between the seed coat and embryo, and rarely but one isolate. The fungus penetrated seeds both indirectly through pores observed in the hypocotyl-radicle axis. Fungal infection was not found in and cracks in the seed coat and directly through hilar tracheids. In seeds the cotyledons. Hyphae without hyphal aggregates were found in seeds inoculated with four of the isolates and in infected seeds from naturally from plants inoculated with three of the isolates.

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