bacteriene

Bacteriene is a term that appears in some sources as a variant spelling or informal shorthand for bacteria. In modern science, the standard term is bacteria, and bacteriene is not widely used in formal taxonomy.

Bacteria are single-celled prokaryotes lacking a membrane-bound nucleus. They typically range from 0.5 to 5 micrometers, have a peptidoglycan cell wall, a circular chromosome in the cytoplasm, and may carry plasmids. Most reproduce by binary fission.

Bacterial diversity includes cocci, bacilli, and spirilla. They are grouped into Gram-positive and Gram-negative lineages based on cell wall and staining. Metabolism is varied: some are autotrophic, others heterotrophic; many species tolerate aerobic or anaerobic conditions.

Bacteria inhabit soil, water, air, and living hosts. They drive nutrient cycling, fermentation, and symbioses. Some lineages cause disease, while many are harmless or beneficial, contributing to digestion, immunity, and ecosystem function.

Humans rely on bacteria for health and industry. The microbiome influences digestion and immunity; bacteria power fermentation and biotechnology, including enzyme production and bioremediation. Antibiotics target bacterial processes, highlighting therapeutic importance and the need for responsible use.

Taxonomy relies on genetics and phenotype. 16S rRNA sequencing and whole-genome analyses shape classification more than morphology alone. When used, bacteriene is generally treated as a nonstandard synonym for bacteria.