The genus *Lactobacillus* has many fermenting bacteria that ferment sugars to lactic acid. 

*Lactobacillus*

*Leuconostoc* is a genus of fermenting bacteria that are important in industry to make fermented foods like kefir and sauerkraut.

*Leuconostoc*

The *Enterococcus* bacterial genus contains aerotolerant anaerobes. They are prevalent in the human microbiota and can cause urinary tract infections. 

*Enterococcus*

Streptococcus is a chain of cocci cells. It is also a diverse genus of bacteria that are further classified on which molecules they produce that can cause an immune response.

Streptococcus

Lactobacillales is a low G+C gram positive bacteria that have bacilli and cocci bacteria: 
- *Lactobacillus*
- *Leuconostoc*
- *Enterococcus*
- *Streptococcus*

University of Wisconsin - Madison

Low G+C gram positive bacteria have less than 50% cytosines and guanines their genomes. This group of bacteria also contains many pathogens. They consist of many different bacteria: 
- Clostridia
- Lactobacillales
- Bacilli
- Mycoplasmas 

Low G+C gram positive bacteria

https://openstax.org/details/books/microbiology/

Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

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Clostridia are endospore producing bacteria that can live in soil and sediment which can let them lie dormant for years. 

Clostridia

Lactobacillales 

Bacterial cells that are rod shaped are bacilli. Bacilli are capable of forming endospores. 

Bacillus

Mycoplasmas are gram positive bacteria even though they lack a cell wall. They were identified by being gram positive because of their low G+C content genome. 

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