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从自然环境中分离出多种微生物分别进行纯培养获得其稳定的菌落形态,并将其与埃迪卡拉纪某些生物属性归属存在较大争议的化石进行形态对比研究,发现其中从砂岩型铀矿矿石分离出的铁球菌(Sphaerococcus),在利用Winogradsky培养基进行富集和纯培养后,形成的菌落与埃迪卡拉纪的某些盘状化石(如Tirasiana concentralis,Cyclomedusa)具有相似的形态和结构。研究还发现,铁球菌菌落不仅形态稳定,而且质地坚硬,具有一定的抗压实作用。因此,其压痕完全有可能在地层中保存。本项研究表明埃迪卡拉纪的部分盘状化石很可能是微生物菌落的压痕,因而为解释一些盘状化石的生物属性提供了新的思路。
A variety of microorganisms isolated from the natural environment were purely cultured to obtain stable colony morphology, and some of Eddacalahei biological properties belonging to the existence of more controversial fossils morphological contrast study found that sandstone-type uranium The sphaerococcus isolated from ore ores, after enrichment and pure culture using Winogradsky medium, formed colonies similar to those of some discoid fossils of the Edicar range such as Tirasiana concentralis, Cyclomedusa and structure. The study also found that not only the stable form of iron bacteria colonies, but also the texture of hard, with some anti-compaction effect. Therefore, it is entirely possible for the indentation to be preserved in the formation. This study shows that some of the disk-shaped fossils in Edicala are most likely to be impressions of microbial colonies, thus providing a new insight into the biological properties of some disk-shaped fossils.