The dark matter of microbes, encompassing uncultivated microbial taxa and unknown biological features, has been widely accepted by microbiologists. With the advancement of microbial investigation methods, a series of dark matter concepts related to microbes have been successively proposed, and numerous research advances in this field have been well-documented. However, these concepts exhibit complex and overlapping connotations, and their inherent connections and distinctions have not yet been clearly clarified. This review work systematically summarizes the current conceptual frameworks of different dark matter types of microbes and analyzes the relevant investigation methodologies and their development trends. This article will help researchers in the microbial resource field gain a clearer understanding of the conceptual connotation and current research status of microbe-associated dark matter and promote the in-depth development of dark matter resource mining.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |