Nutrient enrichment by high aquaculture effluent input exacerbates imbalances between methane production and oxidation in mangrove sediments
Water Research,
Год журнала:
2025,
Номер
unknown, С. 123552 - 123552
Опубликована: Март 1, 2025
Язык: Английский
Sedimentary recorded nitrogen-transforming microbes reflect climate fluctuations in a glacial lake on the Qinghai-Tibetan Plateau over a millennium timescale
Journal of Great Lakes Research,
Год журнала:
2025,
Номер
unknown, С. 102579 - 102579
Опубликована: Апрель 1, 2025
Язык: Английский
The vertical distribution and metabolic versatility of complete ammonia oxidizing communities in mangrove sediments
Environmental Research,
Год журнала:
2025,
Номер
unknown, С. 121602 - 121602
Опубликована: Апрель 1, 2025
Язык: Английский
Enhanced denitrification under saline Conditions: Glycine betaine as a key osmoprotectant
Bioresource Technology,
Год журнала:
2025,
Номер
unknown, С. 132517 - 132517
Опубликована: Апрель 1, 2025
Язык: Английский
Albibacterium profundi sp. nov., isolated from sediment of the Challenger Deep of Mariana Trench, and reclassification of Pedobacter indicus as Albibacterium indicum comb. nov.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY,
Год журнала:
2025,
Номер
75(4)
Опубликована: Апрель 15, 2025
A
rod-shaped,
white-pigmented,
non-motile,
Gram-stain-negative
bacterium,
designated
RHL897
T
,
was
isolated
from
sediments
collected
at
the
Mariana
Trench
Challenger
Deep
(10,816
m).
Strain
strictly
aerobic
and
grew
4–37
°C,
pH
6.0–10.0
in
presence
of
0–11.0
%
(w/v)
NaCl.
Its
genomic
DNA
G+C
content
41.2%.
Metabolic
analysis
revealed
mechanisms
for
salt
tolerance,
abundant
metal
ion
transport
proteins
stronger
resistance
to
heavy
metals
such
as
arsenic
mercury
compared
closest
reference
strains,
likely
linked
adaptation
hadal
sediment
environment.
The
predominant
menaquinone
MK-7,
major
polar
lipids
were
phosphatidylethanolamine,
an
unidentified
aminophospholipid
glycolipid.
main
fatty
acids
iso-C
15
:
0
summed
feature
3
(C
16
1
ω7c
and/or
C
ω6c
)
17
3OH.
exhibited
highest
16S
rRNA
gene
sequence
similarity
type
strain
Pedobacter
indicus
(97.9%)
Albibacterium
bauzanense
(96.1%).
Phylogenetic
trees
constructed
based
on
sequences
a
549
core
set
indicated
that
closely
related
P.
A.
with
all
three
species
clustering
within
distinct
clade.
Combined
analyses
average
nucleotide
identity,
amino
acid
identity
digital
DNA–DNA
hybridization,
represented
novel
genus
which
name
profundi
sp.
nov.
is
proposed.
(=MCCC
1K09221
=KCTC
102276
).
Furthermore,
revised
phylogeny
inclusion
suggested
should
be
reclassified
under
renamed
indicum
.
Язык: Английский
Effects of Seawater from Different Sea Areas on Abalone Gastrointestinal Microorganisms and Metabolites
Microorganisms,
Год журнала:
2025,
Номер
13(4), С. 915 - 915
Опубликована: Апрель 16, 2025
Significant
regional
variations
in
seawater
characteristics
(temperature,
salinity,
pH,
nutrients)
exist
across
marine
environments,
yet
their
impacts
on
abalone
gastrointestinal
microbiota
and
metabolites
remain
underexplored.
This
study
investigated
nutrient
pH
interactions
gut
ecosystems
through
comparative
analysis
of
three
regions
(Pingtan
(PT),
Xiapu
(XP),
Lianjiang
(LJ)).
Seawater
revealed
distinct
patterns:
LJ
exhibited
the
lowest
total
phosphorus
(TP:
0.12
mg/L),
nitrogen
(TN:
2.8
NH3-N
(0.05
mg/L)
but
highest
salinity
(32.1‰)
(7.82),
while
PT/XP
showed
elevated
nutrients
0.24–0.28
mg/L;
TN:
4.2–4.5
mg/L).
Microbial
diversity
peaked
samples
(Shannon
index:
5.8)
with
dominant
genera
Psychrilyobacter
(12.4%)
Bradyrhizobium
(9.1%),
contrasting
PT’s
Mycoplasma-enriched
communities
(18.7%)
XP’s
Vibrio-dominant
profiles
(14.3%).
Metabolomic
identified
127
differential
(VIP
>
1.5,
p
<
0.05),
predominantly
lipids
(38%)
organic
acids
(27%),
pathway
enrichment
sulfur
relay
(q
=
4.2
×
10−5)
tryptophan
metabolism
1.8
10−4).
Stomach-specific
correlated
fatty
acid
degradation
(e.g.,
inosine
diphosphate,
r
−0.82
vibrionimonas)
glutathione
(methionine
vs.
mycoplasma,
−0.79).
Critically,
negative
correlations
beneficial
(oleamide:
−0.68)
positive
associations
pathogenic
Vibrio
(trigonelline:
0.72).
Elevated
(>0.15
TP
(>0.25
promoted
Mycoplasma
proliferation
(R2
0.89)
alongside
cytotoxic
metabolite
accumulation.
These
findings
demonstrate
that
higher
(>8.0)
overload
disrupt
microbial
symbiosis,
favoring
pathogens
over
taxa.
Язык: Английский
Accelerated stress corrosion cracking of X80 pipeline steel under the combined effects of sulfate-reducing bacteria and hydrostatic pressure
Corrosion Science,
Год журнала:
2024,
Номер
unknown, С. 112593 - 112593
Опубликована: Ноя. 1, 2024
Язык: Английский
Microbially-driven phosphorus cycling and its coupling mechanisms with nitrogen cycling in mangrove sediments
The Science of The Total Environment,
Год журнала:
2024,
Номер
958, С. 178118 - 178118
Опубликована: Дек. 18, 2024
Язык: Английский
Efficient low-temperature wastewater treatment by Pseudomonas zhanjiangensis sp. nov.: a novel cold-tolerant bacterium isolated from mangrove sediment
Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Окт. 31, 2024
A
novel
heterotrophic,
cold-tolerant
bacterium,
designated
Язык: Английский