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禾谷丝核菌细胞为双核,立枯丝核菌(Rhizoctonia solani kühn)细胞为多核,这是在形态上的主要区别之一.禾谷丝核菌菌核表层细胞与内部细胞大小、颜色、细胞壁的厚薄都不相同.该菌可以小麦(麦粒、根颈、茎杆、穗轴),谷子(茎杆、叶片),玉米(茎杆、叶片),高粱(茎杆、叶片),水稻(茎杆、叶片),稗子(茎杆、叶片),大豆(茎杆、叶片),绿豆(茎杆、叶片),花生(茎杆、叶片),紫花苜蓿(茎杆、叶片),白花草木栖(茎杆、叶片),芝麻(茎杆、叶片),狗牙根(茎杆)等植物作为生长基质,不能以燕麦茎杆和叶片作为营养基质.病菌生长的良好条件是需要糖、硝态氮、磷、钾、硫等营养物质,PH5—9的酸碱度,15—28℃的温度.温度37℃以上仃止生长.
Rhizoctonia cerealis cells are binuclear and Rhizoctonia solani kühn cells are multinucleated, which is one of the main morphological differences.R. cerevisiae nucleocapsa nuclear cells and internal cell size, color, The cell wall thickness is not the same. The bacteria can wheat (wheat, root neck, stems, cob), millet (stems and leaves), corn (stems and leaves), sorghum (stems and leaves), rice (Stems and leaves), barnyard grass (stems and leaves), soybeans (stems and leaves), mung beans (stems and leaves), peanuts (stems and leaves), alfalfa (stems and leaves) Plants such as habitat (stems and leaves), sesame (stems and leaves), bermudagrass (stems) and other plants can not be used as substrate for the growth of oat stems and leaves. Good conditions for the growth of bacteria are the need for sugar, nitrate Nitrogen, phosphorus, potassium, sulfur and other nutrients, PH5-9 pH, 15-28 ℃ temperature above 37 ℃ temperature Ding growth.