Species-specific functional trait responses of canopy-forming and rosette-forming macrophytes to nitrogen loading: Implications for water–sediment interactions
Environment International,
Год журнала:
2024,
Номер
185, С. 108557 - 108557
Опубликована: Март 1, 2024
Globally
intensified
lake
eutrophication,
attributed
to
excessive
anthropogenic
nitrogen
loading,
emerges
as
a
significant
driver
of
submerged
vegetation
degradation.
Consequently,
the
impact
on
decline
macrophytes
has
received
increasing
attention.
However,
functional
trait-based
approach
exploring
response
loading
and
its
environmental
feedback
mechanism
was
unclear.
Our
study
utilized
two
different
growth
forms
(canopy-forming
Myriophyllum
spicatum,
rosette-forming
Vallisneria
natans)
established
"submerged
macrophytes-water–sediment"
microcosms.
We
assessed
influence
across
four
targeted
total
concentrations
(original
control,
2,
5,
10
mg/L),
plant
traits,
water
parameters,
sediment
properties,
enzyme
activities,
microbial
characteristics.
findings
revealed
that
high
(10
mg/L)
adversely
impacted
relative
rate
fresh
biomass
chlorophyll
content
in
canopy-forming
M.
while
a/b
free
amino
acid
increased.
On
contrary,
photosynthetic
traits
resource-conservative
V.
natans
were
not
affected
by
loading.
Functional
(growth,
photosynthetic,
stoichiometric)
spicatum
but
exhibited
correlations
with
variables.
Nitrogen
significantly
increased
concentration
components
overlying
pore
water.
The
presence
reduced
ammonia
both
water,
decreased
organic
carbon
inhibited
extracellular
planting
mitigated
their
negative
effects.
Furthermore,
rhizosphere
bacterial
interactions
less
compact
compared
bare
eukaryotic
communities
complexity
connectivity.
Path
modeling
indicated
direct
effects
amplified
indirect
also
attenuating
enzymes.
restoration
can
mitigate
eutrophication
resulting
from
through
species-specific
changes
or
mechanisms
water–sediment
system.
Язык: Английский
Parental effects of physiological integration on growth of a clonal herb
Frontiers in Plant Science,
Год журнала:
2025,
Номер
15
Опубликована: Янв. 17, 2025
Although
numerous
studies
have
independently
tested
the
roles
of
physiological
integration
and
parental
effects
on
performance
clonal
plant
species,
few
assessed
them
simultaneously.
Moreover,
capacity
for
differs
greatly
within
species
plants.
We
conducted
a
greenhouse
experiment
with
eight
genotypes
herb
Hydrocotyle
verticillata.
In
first
phase,
we
either
severed
or
maintained
connections
between
original
proximal
nodes
(the
basal
portion)
new
distal
apical
each
genotype.
second
ramets
in
portion
produced
phase
were
selected
cultivated,
their
subjected
to
same
severance
treatments.
negative
balanced
positive
portion,
resulting
no
net
effect
total
mass,
leaf
stem
ramet
number
whole
clone.
mass
H.
verticillata
varied
among
genotypes.
Additionally,
offspring
generations
was
greater
clone
one
genotype
when
intact
than
they
severed,
whereas
it
another
intact.
Our
results
suggest
that
can
influence
these
may
differ
species.
Язык: Английский
Ecological mechanisms of microbial assembly in clonal plant Glechoma longituba : from soil to endosphere
Applied and Environmental Microbiology,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 12, 2025
ABSTRACT
Climate
change
presents
significant
challenges
to
plant
growth
and
reproduction.
Clonal
plants,
with
low
genetic
diversity,
are
particularly
vulnerable
due
their
limited
adaptive
capacity.
Plant-associated
microbiomes
can
play
a
crucial
role
in
enhancing
clonal
survival
adaptability,
yet
the
mechanisms
governing
microbial
community
assembly
along
soil-episphere-endosphere
continuum
remain
unclear.
In
this
study,
we
investigated
patterns
Glechoma
longituba
.
Our
findings
demonstrate
that
of
communities
is
primarily
driven
by
host-related
factors
rather
than
external
environmental
filtering.
First,
host
selection
reduced
α-diversity
network
complexity
while
increasing
β-diversity
stability.
Second,
transitioned
from
stochastic
dominance
bulk
soil
epiphytic
compartments
deterministic
processes
within
endophytic
niches.
Third,
taxonomic
structure
exhibited
turnover
continuum,
accompanied
functional
redundancy
maintain
ecosystem
functions.
The
results
support
hypothesis
optimizes
composition
reducing
diversity
ensuring
stability
key
microorganisms.
study
emphasizes
critical
host-microbe
interactions
sustaining
advantages
offering
insights
into
managing
sustainable
under
climate
change.
IMPORTANCE
This
highlights
vital
plant-associated
helping
which
have
adapt
By
examining
,
research
reveals
itself
plays
shaping
its
communities,
factors.
Host
simplifies
but
enhances
efficiency.
These
suggest
plants
optimize
work
provides
valuable
how
microbes
interact
improve
resilience,
potential
strategies
for
changing
climate.
understanding
these
mechanisms,
better
ecosystems
agricultural
practices
face
global
challenges.
Язык: Английский
Inferior plant competitor allocates more biomass to belowground as a result of greater competition for resources in heterogeneous habitats
Frontiers in Plant Science,
Год журнала:
2023,
Номер
14
Опубликована: Сен. 19, 2023
Nutrient
heterogeneity
in
soil
widely
exists
nature
and
can
have
significant
impacts
on
plant
growth,
biomass
allocation,
competitive
interactions.
However,
limited
research
has
been
done
to
investigate
the
interspecific
intensity
between
two
clonal
species
a
heterogeneous
habitat.
Therefore,
this
greenhouse
experiment
was
conducted
with
species,
Phragmites
australis
Scirpus
planiculumis
,
exposed
homogeneous
patches
of
nutrients
at
five
different
planting
ratios
(0:4,
1:3,
2:2,
3:1
4:0),
assess
effects
both
competition
growth.
It
found
that
nutrient
significantly
enhanced
P.
’
capacity
by
promoting
20%
increase
belowground
allocation.
Interestingly,
ratio
did
not
affect
magnitude
net
outcome.
In
contrast,
superior
competitor
S.
exhibit
change
growth
indicators
patches.
These
findings
imply
uncertainties
associated
human-induced
redistribution
may
lead
shift
dominance
from
other
those
like
which
strong
foraging
abilities
response
emergent
wetland
communities.
Язык: Английский
Nitrogen fertilization practices alter microbial communities driven by clonal integration in Moso bamboo
The Science of The Total Environment,
Год журнала:
2024,
Номер
924, С. 171581 - 171581
Опубликована: Март 11, 2024
Язык: Английский
Growth Characteristics of Ramet System in Phyllostachys praecox Forest under Mulch Management
Guibin Gao,
Xing Wen,
Wu Zhizhuang
и другие.
Plants,
Год журнала:
2024,
Номер
13(13), С. 1761 - 1761
Опубликована: Июнь 26, 2024
The
ramet
system
is
a
typical
structural
type
in
the
life
history
of
clonal
plants.
This
massive
structure
formed
by
many
similar
ramets
connected
underground
rhizomes,
which
are
independent
and
mutually
influential.
Therefore,
unique
to
bamboo
forests,
its
role
construction,
maintenance,
productivity
populations
irreplaceable.
Mulch
management
high-level
cultivation
model
for
forests
that
used
cultivate
shoots.
However,
basic
conditions
systems
this
managed
poorly
understood.
study
analyzed
rhizome
morphology,
bud
bank,
branching
Phyllostachys
praecox
C.D.
Chu
et
C.S.
Chao
‘Prevernalis’
forest
explore
growth
patterns
fields.
In
mulched
distributed
intermediate
positions
system,
were
long
with
lateral
buds
branches,
those
at
initial
distal
ends
short
few
branches.
end
reduced
part
expanded
promoted
regeneration.
Owing
continuous
reduction,
expansion,
renewal
systems,
demonstrates
mobility
adaptability.
found
higher
level
increased
possibility
artificial
fragmentation
improving
efficiency
was
beneficial
maintaining
high
vitality.
Thus,
provides
crucial
reference
guiding
precise
regulation
forests.
Язык: Английский
Influence of the size of clonal fragment on the nitrogen turnover processes in a bamboo ecosystem
Frontiers in Plant Science,
Год журнала:
2023,
Номер
14
Опубликована: Ноя. 23, 2023
Different
sizes
of
clonal
fragments
contain
various
number
ramets
with
different
spacer
lengths,
which
strongly
affects
the
redistribution
photosynthetic
assimilates.
Although
integration
significantly
rhizosphere
processes
via
microbial
enzymes
under
heterogeneous
conditions,
effects
fragment
size
(ramet
and
length)
on
N
turnover
remain
poorly
understood.
Here,
we
sampled
Phyllostachys
bissetii
ramet
numbers
lengths
to
determine
relative
resource
availability.
We
found
that
had
positive
C
availability
shaded
in
numbers,
owing
large
storage
fragment.
However,
it
only
promoted
dissolved
organic
carbon
lengths.
Results
regression
analyses
indicated
response
ratios
soil
variables
first
increased
when
length
was
about
less
than
30
cm
then
decreased
became
longer
(about
>30
cm),
suggesting
a
cost–benefit
tradeoff
The
contribution
process
higher
integration,
whereas
its
opposite
effect.
These
results
further
revealed
mechanism
affecting
stressed
ramets,
is
critical
for
adaptation
P.
habitats
bamboo
ecosystem
climate
change.
Язык: Английский
Clonal integration benefits Calystegia soldanella in heterogeneous habitats
AoB Plants,
Год журнала:
2024,
Номер
16(3)
Опубликована: Май 20, 2024
Abstract
Abstract.
Land-use
change
and
tourism
development
have
seriously
threatened
the
ecosystems
of
coastal
protection
forests
beaches.
Light
nutrients
are
spatially
heterogeneously
distributed
between
two
ecosystems.
Clonal
plants,
such
as
Calystegia
soldanella,
which
play
a
crucial
role
in
maintaining
ecological
stability
habitats,
likely
to
encounter
diverse
environments.
In
this
study,
we
investigated
clonal
integration
division
labour
C.
soldanella
under
heterogeneous
(high
nutrient
low
light
[HNLL];
high
[LNHL])
homogeneous
habitats.
We
cultivated
pairs
connected
severed
ramets
these
Our
results
showed
total
biomass
(TB)
was
higher
than
that
environments,
suggesting
enhances
growth
The
root
shoot
ratio
significantly
lower
HNLL
LNHL
conditions
for
ramets,
demonstrating
conditions.
However,
parameters
propagation
did
not
differ
indicating
no
propagation.
benefit
from
integration.
Connected
habitats
exhibited
TB
one
ramet
consistently
LNHL,
irrespective
ramet’s
states,
suggests
soil
may
enhance
growth.
conclude
has
capability
achieve
but
conditions,
establishment
light)
foster
soldanella.
Язык: Английский
Evidence for clonal integration of clones contributing to unexpectedly higher benefits for interspecific neighbours
Physiologia Plantarum,
Год журнала:
2024,
Номер
176(6)
Опубликована: Ноя. 1, 2024
Abstract
Clonal
plants
benefit
from
the
ability
to
translocate
resources
among
interconnected
ramets
colonize
stress
habitats.
Despite
fact
that
physiological
integration
of
clones
may
influence
their
general
performance
and
competitiveness,
we
still
lack
an
understanding
how
alters
compete
with
neighbours.
In
a
greenhouse
experiment,
investigated
clonal
perennial
herbaceous
Cynodon
dactylon
,
which
originated
two
flooding
ecotypes,
influenced
growth,
functional
traits,
biomass
allocation
relative
competitiveness
intraspecific
interspecific
We
also
used
reciprocal
transplant
experiment
assess
plasticity
adaptation
test
‘home‐field’
advantage
on
The
findings
showed
that,
for
low‐stress
significantly
enhanced
specific
root
length,
storage,
root‐shoot
ratio,
competitive
neighbours,
but
it
had
little
effect
overall
neighbours
across
ecotypes.
Interestingly,
such
encouragement
helped
expand,
suggesting
physiologically
independent
can
one
another.
home‐field
advantages
were
demonstrated
by
home
site
more
than
away
site.
This
study
provides
novel
evidence
facilitation
between
has
implications
environments
where
both
high
levels
clonality
are
expected
occur.
Язык: Английский