Lehman J F, Gleason M K, Ahlgren S K, Metzenberg R L
Genetics. 1973 Sep;75(1):61-73. doi: 10.1093/genetics/75.1.61.
A mutant of Neurospora crassa, called UW-6, differs from wild type in being partially constitutive for synthesis of a species of alkaline phosphatase, and also for a species of phosphate permease that has a high affinity for phosphate at high pH. UW-6 is possibly allelic with a mutant called nuc-2 that was previously isolated by Ishikawa. nuc-2 has the converse phenotype, in that it cannot be derepressed for either of these two activities. UW-6 is co-dominant with its wild-type allele in heterokaryons and in partial diploids. An unlinked mutant, nuc-1, is like nuc-2 in that it fails to make the alkaline phosphatase or the permease referred to above. nuc-1 is epistatic to UW-6 in the double mutant. The control of phosphorus metabolism is discussed, and is compared with some other control systems in filamentous fungi.
粗糙脉孢菌的一个突变体,称为UW - 6,与野生型的不同之处在于,它在某种碱性磷酸酶的合成上部分组成型表达,并且在高pH值下对磷酸盐具有高亲和力的某种磷酸盐通透酶的合成上也是部分组成型表达。UW - 6可能与之前由石川分离出的一个名为nuc - 2的突变体等位。nuc - 2具有相反的表型,即这两种活性中的任何一种都不能被去阻遏。UW - 6在异核体和部分二倍体中与其野生型等位基因共显性。一个不连锁的突变体nuc - 1与nuc - 2相似,即它不能产生上述碱性磷酸酶或通透酶。在双突变体中,nuc - 1对UW - 6上位。文中讨论了磷代谢的调控,并与丝状真菌中的其他一些控制系统进行了比较。