摘要
对一些弗兰克氏菌的遗传和生理特性进行了研究。结果表明,7株菌可以分为3个基因群。从木麻黄(casuarina equisetifolia)分离的菌株可以划为一个基因群(与菌株 S-103的DNA 同源性在74%以上),这是国外尚未报道的新基因群。其他两株弗兰克氏菌菌株 Arl4(从赤杨根瘤分离)和 PtI1(从 Purshia 根瘤分离)分别形成另外两个基因群,这与 An 的报道一致。7株弗兰克氏菌 DNA 的 G+c mol%在69—73。S-103基因群菌株不利用糖类,仅利用简单的有机酸盐。而菌株 Arl4和 PtI1则利用一些糖和有机酸盐作为碳源。
The genotypic and phenotypic proper-ties of some Frankia strains were establishedThe results of DNA homology indicated thatseven tested Frankia strains should be divi-ded into three genetic groups.Frankia str-ains isolated from Casuarina equisetifoliashould be classified into one genetic group(74 to 100% related to strain S-103),whichhave not beenreported before.Other twoFrankia strains,Ar14 and Pt11 isolated fromAlnus and Purshia respectively formed twodistinct genetic group,which agree with An'report.The guanine plus cytosine contentsof the DNA of seven Frankia strains rangedfrom 69 to 73 mol%.Strains from S-103 ge-netic group did not utilize sugars,only sim-ple organic acids were utilized as a carbonsources.Strains Arl4 and Pt11 utilized su-gars as well as organic acids.
出处
《微生物学报》
CAS
CSCD
北大核心
1992年第2期133-136,共4页
Acta Microbiologica Sinica
基金
中国国家科委、波兰科学院免疫与化疗研究所的资助
国家自然科学基金的部分资助
