The Promotion of Dark Septate Endophytes on the Performance and Active Ingredients Accumulation of Dendranthema morifolium Under Cd Stress
Meiling Wu,
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Gen Li,
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Simiao Wang
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et al.
Agronomy,
Journal Year:
2025,
Volume and Issue:
15(1), P. 208 - 208
Published: Jan. 16, 2025
Dark
septate
endophytes
(DSE)
may
facilitate
plant
growth
and
stress
tolerance
in
stressful
ecosystems.
However,
little
is
known
about
the
response
of
medicinal
plants
to
DSE,
especially
under
heavy
metal
stress.
This
study
aimed
investigate
how
DSE
affects
Dendranthema
morifolium
cadmium
(Cd)
In
this
investigation,
sterile
non-sterile
inoculations
were
carried
out
evaluate
effect
three
strains
on
D.
stressed
with
Cd.
For
root,
DSE15
or
inoculation
resulted
enhanced
root
biomass,
volume,
Cd
content
roots,
indoleacetic
acid
(IAA)
levels
DSE7
significantly
roots
at
1
5
mg
Cd/kg
soil.
Regarding
impact
stems
leaves,
conditions,
effectively
regulated
shoot
height,
chlorophyll
level,
superoxide
dismutase
(SOD)
content.
Under
positively
influenced
biomass
while
had
no
significant
them
when
subjected
effects
flowers
increased
flower
stress,
reduced
transfer
coefficient
Importantly,
soil,
promoted
1,
5-dicaffeoylquinic
by
18.29%
21.70%.
The
interaction
between
soil
factors
revealed
that
species
organic
carbon
available
nitrogen
content,
These
results
contribute
a
better
understanding
DSE-plant
interactions
habitats
contaminated
metals
demonstrate
potential
utility
for
cultivating
plants.
Language: Английский
Jet-Breaking Extrusion of Alginate–Chitosan Capsules for Encapsulation of Plant Growth–Promoting Extremophilic Fungi
César Arriagada,
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Javier Ortiz,
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Nicole Iturra
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et al.
Microorganisms,
Journal Year:
2025,
Volume and Issue:
13(5), P. 1123 - 1123
Published: May 14, 2025
Drought
and
metal
pollution
severely
impact
plant
growth.
Root-associated
extremophilic
fungi
can
improve
performance,
their
encapsulation
improves
protection
effectiveness.
This
study
optimized
the
conditions
for
an
fungus
with
growth-promoting
traits
using
alginate–chitosan
capsules.
An
endophytic
was
isolated
from
roots
of
Neltuma
chilensis
Atacama
Desert
identified
via
internal
transcribed
spacer
(ITS)
sequencing.
Its
traits,
including
exopolysaccharide,
ammonium,
siderophore,
indole
acetic
acid
production
phosphorus
solubilization,
were
evaluated.
Freeze-dried
Penicillium
nalgiovense
encapsulated
jet-breaking
extrusion,
capsule
morphology
fungal
survival
assessed
scanning
electron
microscope
(SEM),
confocal
laser
microscopy
(CLSM),
viability
tests.
Using
Taguchi’s
design,
optimal
sphericity
(0.914
±
0.002)
mean
size
(3.232
0.087
mm)
achieved
1%
chitosan,
a
5
cm
distance
to
gelation
bath,
40
Hz
vibration
frequency.
CLSM
analysis
confirmed
presence
chitosan
outer
layer,
revealing
capsule’s
coating
material
encapsulating
P.
nalgiovense.
The
remained
viable
across
disinfection
times,
demonstrating
effective
gradual
release.
These
findings
emphasize
need
precise
parameter
control
in
encapsulation,
providing
basis
developing
robust
bioinoculants
support
resilience
extreme
environments.
Language: Английский
Evaluating Fungal Metal Tolerance Using MALDI‐TOF MS: A Rapid Alternative to Conventional MIC Methods
Journal of Basic Microbiology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 25, 2025
ABSTRACT
Metal
contamination
represents
a
critical
environmental
challenge,
adversely
impacting
ecosystems
and
human
health.
Microorganisms,
including
fungi,
have
developed
diverse
mechanisms
to
tolerate
resist
metal‐induced
stress,
making
them
valuables
for
bioremediation.
This
study
evaluates
the
metal
tolerance
of
Absidia
glauca
,
Penicillium
bilaiae
Trichoderma
viridescens
using
minimum
inhibitory
concentration
(MIC)
assay
alternative
profile
change
(MPCC)
approach
via
MALDI‐TOF
MS.
MIC
revealed
species‐specific
tolerances
copper,
zinc,
cadmium.
A.
showed
highest
copper
cadmium
(75
9
mg
L
−1
),
producing
dry
biomass
0.03
0.04
g,
respectively.
While
P.
exhibited
zinc
)
0.06
g.
MS
provided
rapid
proteomic
information
on
fungal
responses
metals,
showing
changes
in
protein
as
increased.
We
performed
comparative
analysis
between
values
obtained
MPCC,
giving
positive
correlation
results
both
techniques
Cu,
Zn,
Cd
(
r
=
1.00;
0.87
0.99
respectively,
p
<
0.05).
In
conclusion,
has
proven
be
an
effective
method
analyzing
exposure,
providing
more
detailed
molecular
insights
than
traditional
assays.
Future
studies
should
investigate
underlying
resistance,
particularly
focus
regulation
specific
proteins.
Language: Английский
Diversity and Functional Roles of Root-Associated Endophytic Fungi in Two Dominant Pioneer Trees Reclaimed from a Metal Mine Slag Heap in Southwest China
Bo Bi,
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Yuqing Xiao,
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Xiaonan Xu
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et al.
Microorganisms,
Journal Year:
2024,
Volume and Issue:
12(10), P. 2067 - 2067
Published: Oct. 15, 2024
The
utilization
of
fast-growing,
economically
valuable
woody
plants
with
strong
stress
resistance,
such
as
poplar
and
willow,
to
revegetate
severely
metal-contaminated
mine
tailings
not
only
offers
a
productive
profitable
use
abandoned
polluted
soil
resources
but
also
facilitates
the
phytoremediation
these
soils.
This
study
examines
diversity
functional
roles
endophytic
fungi
naturally
colonizing
roots
an
artificially
established
Language: Английский