Bergey's Manual of Systematic Bacteriology focuses on organisms belonging to which kingdom?

Bergey's Manual of Systematic Bacteriology is a comprehensive reference work that classifies and describes bacteria, focusing primarily on organisms that belong to the kingdom Prokaryotae. This kingdom includes all prokaryotic organisms, specifically bacteria and archaea, which are characterized by their lack of a true nucleus and other membrane-bound organelles, distinguishing them from eukaryotic organisms.

The text serves as an essential resource for microbiologists, offering detailed classifications based on morphological, physiological, and genetic characteristics. Prokaryotes, a significant focus of this manual, are fundamental in many biological processes, including nutrient cycling, fermentation, and the pathogenesis of infectious diseases. Bergey's Manual provides an organized framework to understand their diversity and significance in various environments.

In contrast, Eukaryotae refers to organisms with complex cells (eukaryotes), including animals, plants, and fungi, which are not the primary focus of this manual. While Archaea is a separate domain within the prokaryotes, Bergey's Manual encompasses all prokaryotic life, making it more broadly applicable to the kingdom Prokaryotae as a whole. Plantae refers to the plant kingdom, which is outside the scope of Bergey's