Koltin Y, Day P R
Proc Natl Acad Sci U S A. 1976 Feb;73(2):594-8. doi: 10.1073/pnas.73.2.594.
Three different killer specificities in U. maydis are inherited cytoplasmically and transmitted by cell fusion. Each killer generates low frequencies of specifically immune forms in crosses with sensitive strains. The properties of immunity to each killer are also inherited cytoplasmically and transmitted by cell fusion. Killer strains carry virus-like particles about 41 nm in diameter. Each killer possesses distinct double-stranded RNA components that range in molecular weight from 0.46 X 10(6) to 2.9 X 10(6). Two components are shared by all three killers. Immune strains possess new forms. Crosses and heterokaryons between different killers revealed unilateral or mutual restrictions that prevent inclusion of two killer specificities in the same cell.
玉米黑粉菌中的三种不同杀伤特异性是通过细胞质遗传并通过细胞融合传递的。每个杀伤菌株在与敏感菌株杂交时产生低频率的特异性免疫形式。对每种杀伤菌株的免疫特性也通过细胞质遗传并通过细胞融合传递。杀伤菌株携带直径约41纳米的病毒样颗粒。每个杀伤菌株都拥有不同的双链RNA组分，其分子量范围为0.46×10⁶至2.9×10⁶。所有三种杀伤菌株共有两种组分。免疫菌株具有新的形式。不同杀伤菌株之间的杂交和异核体显示出单向或相互限制，阻止在同一细胞中包含两种杀伤特异性。
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