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Bacillaceae

Bacillaceae is a family of bacteria within the order Bacillales, class Bacilli, phylum Firmicutes. Members are predominantly Gram-positive, rod-shaped, and endospore-forming. They are typically aerobic or facultatively anaerobic and occur in diverse environments, especially soil and water. The ability to form endospores enables resistance to heat, desiccation, and other adverse conditions, contributing to persistence in natural and industrial settings.

The best-known genus in the family is Bacillus. Species such as Bacillus subtilis, Bacillus cereus, and Bacillus

Ecology and applications: Bacillaceae members occupy soil, fresh water, and plant-associated niches, where they often act

Taxonomy and classification: The taxonomy of Bacillaceae has evolved with molecular methods, leading to reclassification and

anthracis
illustrate
the
ecological
and
medical
breadth
of
the
group.
Bacillus
subtilis
is
widely
used
as
a
model
organism
in
science
and
as
a
source
of
industrial
enzymes,
while
B.
cereus
can
cause
foodborne
illness
and
B.
anthracis
is
the
etiological
agent
of
anthrax.
Beyond
Bacillus,
the
family
encompasses
additional
genera
described
from
environmental
samples,
many
of
which
contribute
to
nutrient
cycling,
bioremediation,
or
biotechnology.
as
decomposers
and
producers
of
extracellular
enzymes
and
antimicrobial
compounds.
They
have
practical
importance
in
industry,
agriculture,
and
medicine,
ranging
from
enzyme
production
to
biocontrol
agents.
refinement
of
relationships
within
the
order
Bacillales.
As
molecular
data
accumulate,
the
circumscription
of
the
family
and
its
genera
continues
to
be
updated.