This
is
a
brief
critique
of
the
functions—particularly
olfactory
functions—specified
for
“Chemosensory
Protein”
(CSPs)
molecule
family.
On
basis
these
proteins’
presence
in
sensory
antennal
lymph
locusts,
odor
chemosensory
ligand
binding
functions
have
been
hypothesized.
According
to
this
hypothesis,
entire
protein
superfamily
referred
as
“CSPs”.
However,
new
information
and
developments
field
CSP
molecular
research,
such
expression
genes
gut,
brain,
fat
body,
epidermis,
pheromone
gland,
well
gene
profiling
from
most
early
developmental
stages—that
is,
advance
appearance
chemical
sense
nerve
cells—strongly
suggest
that
has
other
roles
are
unrelated
chemosensing.
Moreover,
CSPs
found
bacterial
microbial
prokaryote
organisms
addition
insects.
Thus,
we
examine
molecule’s
name,
definition,
RNA
editing,
structure,
lipid
properties,
DNA
interaction,
evolutionary
characteristics
before
referring
family
Proteins”.
article
tries
compel
discuss
recent
way
rename
Because
its
highly
conserved
distinctive
feature
(four
adjacent
cysteines),
propose
renaming
“CSPs”
“4CSPs”
(4
Cysteines
Soluble
Proteins).
Microbiology Spectrum,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 8, 2025
ABSTRACT
Limnospira
can
colonize
a
wide
variety
of
environments
(e.g.,
freshwater,
brackish,
alkaline,
or
alkaline-saline
water)
and
develop
dominant
even
permanent
blooms
that
overshadow
limit
the
diversity
adjacent
phototrophs,
especially
in
alkaline
saline
environments.
Previous
phylogenomic
analysis
allowed
us
to
distinguish
two
major
phylogenetic
clades
(I
II)
but
failed
clearly
segregate
strains
according
their
respective
habitats
terms
salinity
biogeography.
In
present
work,
we
attempted
determine
whether
displays
metabolic
signatures
specific
its
different
habitats,
particularly
brackish
ecosystems.
The
impact
accessory
gene
repertoires
on
chemical
adaptations
was
also
determined.
complement
our
previous
investigation
(Roussel
et
al.,
2023),
metabolomic
93
,
grown
under
standardized
lab
culture
conditions.
Overall,
this
original
work
showed
distinct
fingerprints
were
correlated
with
biogeographic
origins
strains.
molecules
most
distinguished
geographic
groups
sugars,
lipids,
peptides,
photosynthetic
pigments,
antioxidants.
Interestingly,
these
molecular
enrichments
might
represent
consequent
conditions
salinity,
light,
oxidative
stress
sampling
Although
genes
specifically
involved
production
components
remain
unknown,
hypothesized
within
extreme
environments,
such
as
those
colonized
by
large
set
flexible
could
support
peculiar
metabolite
sets
providing
remarkable
local
environmental
IMPORTANCE
are
ubiquitous
cyanobacteria
adaptive
strategies
allowing
them
dominate
range
worldwide.
Phylogenomic
revealed
We
found
variable
portion
genome
be
adaptation
paper,
displayed
habitats.
sought
understand
repertoire
adaptations.
Environmental Microbiology,
Год журнала:
2025,
Номер
27(2)
Опубликована: Фев. 1, 2025
ABSTRACT
The
diversity
of
the
marine
cyanobacterium
Synechococcus
can
be
broadly
separated
into
clades,
with
clade
II
typically
present
in
warm
oligotrophic
water,
and
clades
I
IV
found
cooler
coastal
water.
We
amplicon
sequence
variants
(ASVs)
belonging
to
nutrient‐replete
waters
San
Diego
Bay
(SDB).
Using
16S
rRNA
gene,
18S
gene
internal
transcribed
spacer
region
sequencing,
we
analysed
multiple
locations
SDB
monthly
for
over
a
year,
additional
samples
dating
back
2015.
community
composition
differed
from
nearby
coast
terms
dominant
ASVs.
Specific
ASVs
became
relatively
more
abundant
towards
bay
showed
seasonality,
higher
relative
abundance
months.
Select
group
phylogenetically
show
similar
seasonal
spatial
distribution
patterns,
indicating
these
have
adapted
SDB.
Isolates
matching
pigment
that
is
better
green
light
available
SDB,
further
supporting
our
findings.
Other
microbial
taxa
also
enrichment,
providing
evidence
chemostat‐like
environment
where
circulation,
temperature,
other
environmental
conditions
create
zone
evolution
diversification.
Microbes
respond
to
changes
in
their
environment
by
adapting
physiology
through
coordinated
adjustments
the
expression
levels
of
functionally
related
genes.
To
detect
these
shifts
situ,
we
developed
a
sparse
tensor
decomposition
method
that
derives
gene
co-expression
patterns
from
inherently
complex
whole
community
RNA
sequencing
data.
Application
metatranscriptomes
abundant
marine
cyanobacteria
Prochlorococcus
and
Synechococcus
identified
responses
scarcity
two
essential
nutrients,
nitrogen
iron,
including
increased
transporter
expression,
restructured
photosynthesis
carbon
metabolism,
mitigation
oxidative
stress.
Further,
profiles
clusters
suggest
both
populations
experience
simultaneous
iron
stresses
transition
zone
between
North
Pacific
oceanic
gyres.
The
results
demonstrate
power
our
approach
infer
organism
environmental
pressures,
hypothesize
functions
uncharacterized
genes,
extrapolate
ramifications
for
biogeochemical
cycles
changing
ecosystem.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Апрель 25, 2025
Abstract
Seasonal
and
El
Niño-Southern
Oscillation
(ENSO)
warming
result
in
similar
ocean
changes
as
predicted
with
climate
change.
Climate-driven
environmental
cycles
have
strong
impacts
on
microbiome
diversity,
but
function
are
poorly
understood.
Here
we
quantify
microbial
genomic
diversity
functioning
over
11
years
covering
seasonal
ENSO
at
a
coastal
site
the
southern
California
Current.
We
observe
oscillations
between
large-genome
lineages
during
cold,
nutrient
rich
conditions
winter
spring
versus
small-genome
lineages,
including
Prochlorococcus
Pelagibacter
,
summer
fall.
Parallel
interannual
separate
communities
depending
condition.
Biodiversity
shifts
translate
into
clear
functional
potential.
Ocean
induced
an
ecosystem
less
iron
more
macronutrient
stress
genes,
depressed
organic
carbon
degradation
potential
biomass,
elevated
carbon-to-nutrient
biomass
ratios.
The
consistent
response
observed
across
time-scales
points
towards
large
climate-driven
marine
ecosystems
biogeochemical
cycles.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(8), С. 4456 - 4456
Опубликована: Апрель 18, 2024
Molecular
studies
about
cyanide
biodegradation
have
been
mainly
focused
on
the
hydrolytic
pathways
catalyzed
by
dihydratase
CynD
or
nitrilase
NitC.
In
some
Pseudomonas
strains,
assimilation
of
has
linked
to
NitC,
such
as
cyanotrophic
model
strain
pseudoalcaligenes
CECT
5344,
which
recently
reclassified
oleovorans
5344.
this
work,
a
phylogenomic
approach
established
more
precise
taxonomic
position
5344
within
species
P.
oleovorans.
Furthermore,
pan-genomic
analysis
and
other
with
fluorescens
monteilii,
allowed
for
comparison
identification
cioAB
mqoAB
genes
involved
in
resistance,
nitC
cynS
required
cyanate,
respectively.
While
resistance
presented
high
frequency
among
analyzed
genomes,
responsible
cyanate
were
identified
considerably
lower
proportion.
According
results
obtained
an
silico
based
comparative
genomic
can
be
considered
agile
strategy
bioprospection
putative
bacteria
new
putatively
biodegradation.
Frontiers in Marine Science,
Год журнала:
2024,
Номер
11
Опубликована: Июль 2, 2024
We
investigated
the
influence
of
iron
(Fe),
phosphate
(PO
4
),
and
silicic
acid
[Si(OH)
]
concentrations
on
Si
uptake
rate
by
two
strains
Synechococcus
.
Growth
rates,
cellular
biogenic
silica
(bSi),
silicon
rates
were
measured
compared.
Both
showed
significant
contents
varying
from
0.04
47
fmol
cell
−1
to
a
maximum
,
confirming
that
presence
in
is
common
feature
genus
but
with
strain
specificity.
Maximum
when
Fe
P
co-limited
RCC
2380
growth
(47
)
under
-Fe-Si
limitations
(6.6
for
second
1084.
Unambiguously,
all
conditions
involving
induced
an
increase
Moreover,
1084
relationship
between
quota
rate.
However,
both
also
clear
impact
their
uptake:
quotas
increased
1)
limitation
even
without
co-limitation
2)
simple
co-limitations
2380.
exhibited
behavior
has
never
been
seen
before
changing
Si(OH)
:
150
µM
negatively
impacted
over
10
generations.
Conversely,
was
limited
dropped
20
µmol
L
normalized
organisms’
size
(7.46
µm
−3
day
are
comparable
those
diatoms
rhizarians.
From
our
data,
using
data
available
content
average
each
Longhurst
province,
existing
descriptions
dominant
nutrient
specificity,
we
estimated
at
global
scale
annual
bSi
stock
contained
0.87
±
0.61
Tmol
Si,
i.e.,
around
quarter
due
diatoms.
production
could
38
27
year
which
roughly
17%
total
production.
Hydrobiologia,
Год журнала:
2023,
Номер
851(4), С. 1035 - 1062
Опубликована: Дек. 12, 2023
Abstract
In
this
work,
we
characterised
the
cyanobacterial
communities
in
plankton
and
littoral
biofilm
of
38
lakes
21
rivers
Alps
surrounding
subalpine
regions
by
16S
rRNA
gene
metabarcoding.
We
found
little
overlap
distribution
amplicon
sequence
variants
(ASVs)
between
three
habitats
water
bodies.
The
differences
were
caused
environmental
filtering
acting
on
selection
most
abundant
ASVs
a
high
contribution
rare
oligotypes.
differentiation
community
genotype
composition
from
specific
bodies
was
explained
to
significant
extent
variables
morphometry.
taxonomic
consistency
classified
under
same
genus
name
assessed
phylogenetic
analyses
performed
representative
dominant
genera,
namely
Cyanobium
,
Tychonema
Planktothrix
.
revealed
eco-evolutionary
adaptations
rivers,
including
some
evidence
for
polyphyletic
nature.
Monitoring
individual
genotypes
relation
conditions
will
be
useful
define
ecological
amplitude
these
taxa.
However,
persistence
or
ephemeral
nature
rarest
unusual
has
remained
unknown.
This
is
a
brief
critique
of
the
functions—particularly
olfactory
functions—specified
for
“Chemosensory
Protein”
(CSPs)
molecule
family.
On
basis
these
proteins’
presence
in
sensory
antennal
lymph
locusts,
odor
chemosensory
ligand
binding
functions
have
been
hypothesized.
According
to
this
hypothesis,
entire
protein
superfamily
referred
as
“CSPs”.
However,
new
information
and
developments
field
CSP
molecular
research,
such
expression
genes
gut,
brain,
fat
body,
wings,
epidermis,
pheromone
gland,
well
gene
profiling
from
most
early
developmental
stages—that
is,
advance
appearance
chemical
sense
nerve
cells—strongly
suggest
that
has
other
roles
are
unrelated
chemosensing.
Moreover,
CSPs
found
bacterial
microbial
prokaryote
organisms
addition
insects
all
arthropods.
Thus,
we
examine
molecule’s
name,
definition,
RNA
editing,
structure,
lipid
properties,
DNA
interaction,
evolutionary
characteristics
before
referring
family
Proteins”.
As
means
renaming
family,
review
article
discusses
latest
findings
(“CSP”
attached
tail
bigger
intracellular
proteins)
attempts
compel
data.
Because
its
highly
conserved
distinctive
feature
(four
adjacent
cysteines),
propose
“CSPs”
“4CSPs”
(4
Cysteines
Soluble
Proteins)
use
at
least
abbreviations
animal
proteins
common
peptide
5-letter
code,
“Bommo-4CSPs”.