vs

Clostridium carnis compared with Clostridium tertium

Taxonomic Classification

Rank
Kingdom same	Bacteria (Bacteria)	Bacteria (Bacteria)
Phylum same	Firmicutes_A	Firmicutes_A
Class same	Clostridia (Clostridia)	Clostridia (Clostridia)
Order same	Clostridiales (Clostridiales)	Clostridiales (Clostridiales)
Family same	Clostridiaceae	Clostridiaceae
Genus same	Clostridium	Clostridium
Species	Clostridium carnis	Clostridium tertium

Evolutionary Relationship

and share a common ancestor at the Genus level: Clostridium.

ดู: Genus: Clostridium

Conservation Status

NE — Not Evaluated

Physical Characteristics

Attribute
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

Clostridium carnis is an anaerobic, endospore-forming bacterium in the family Clostridiaceae typically isolated from meat (caro/carnis, Latin for meat) and animal tissues, as well as soil and sediments. Like other clostridia, it is a strictly anaerobic, Gram-positive rod that survives adverse conditions by forming heat-resistant endospores. C. carnis is associated with putrefaction processes in proteinaceous substrates, producing proteolytic enzymes that break down meat proteins, contributing to gas gangrene and tissue necrosis in infected wounds under anaerobic conditions. It is considered one of the histotoxic clostridia capable of causing wound infections in humans and animals, though it is less clinically significant than C. perfringens or C. septicum. Isolated from soil, intestinal contents, and meat products, C. carnis contributes to anaerobic decomposition of organic nitrogen compounds, releasing ammonia and simpler organic acids back into the environment. Its resistance to environmental conditions through sporulation makes it persistent in soil environments associated with animal husbandry and meat processing facilities.

Clostridium tertium is an aerotolerant, endospore-forming bacterium in the family Clostridiaceae notable among clostridia for its ability to grow in the presence of atmospheric oxygen, despite being classified within the genus of strictly anaerobic organisms. Its relative aerotolerance distinguishes it from most genus members and contributes to its occasional isolation from clinical sources. C. tertium is considered an opportunistic pathogen, causing bacteremia primarily in immunocompromised patients including those undergoing chemotherapy, with neutropenia as a key risk factor. The bacterium has been isolated from soil, water, and the gastrointestinal tract of animals and humans. Despite causing bacteremia and occasionally more invasive infections, C. tertium does not produce recognized exotoxins comparable to the major histotoxic clostridia, and its pathogenic mechanisms involve host immune evasion rather than direct toxin-mediated tissue destruction. Clinically, C. tertium bacteremia carries significant mortality in neutropenic patients but responds to beta-lactam antibiotics unlike C. difficile or C. perfringens infections. Its natural aerotolerance makes it unusual within the Clostridium genus and raises evolutionary questions about the anaerobic ancestry of this lineage.