来自麦二叉蚜和禾谷缢管蚜的内共生菌（布赫纳氏菌）含有亮氨酸生物合成基因的质粒拷贝数不同。
Endosymbionts (Buchnera) from the aphids Schizaphis graminum and Diuraphis noxia have different copy numbers of the plasmid containing the leucine biosynthetic genes.
作者信息
Thao M L, Baumann L, Baumann P, Moran N A
机构信息
Microbiology Section, University of California, Davis, CA 95616-8665, USA.
出版信息
Curr Microbiol. 1998 Apr;36(4):238-40. doi: 10.1007/s002849900301.
The prokaryotic endosymbiont (Buchnera) of the aphid Schizaphis graminum contains 24 copies of a plasmid that has genes encoding enzymes of the leucine biosynthetic pathway while the endosymbiont of the related aphid Diuraphis noxia has only one copy of this plasmid. These results, in conjunction with similar results for the trpEG-containing plasmids, suggest that D. noxia has a reduced demand for endosymbiont-derived essential amino acids.
麦二叉蚜（Schizaphis graminum）的原核内共生菌（布赫纳氏菌，Buchnera）含有24个拷贝的质粒，该质粒具有编码亮氨酸生物合成途径中酶的基因，而相关蚜虫麦长管蚜（Diuraphis noxia）的内共生菌只有该质粒的一个拷贝。这些结果，连同含trpEG质粒的类似结果，表明麦长管蚜对共生菌衍生的必需氨基酸的需求降低。
Zotero 插件