Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Апрель 8, 2024
Zinc
(Zn)
is
an
essential
trace
element
but
can
lead
to
water
contamination
and
ecological
deterioration
when
present
in
excessive
amounts.
Therefore,
investigating
the
photosynthetic
response
of
microalgae
Zn
stress
great
significance.
In
this
study,
we
assessed
responses
neutrophilic
Chlamydomonas
reinhardtii
acidophilic
sp.
1710
exposure
for
96
h.
The
specific
growth
rate
(μ),
chlorophyll-a
(Chl-a)
content,
chlorophyll
fluorescence
parameters
were
determined.
results
demonstrated
that
was
much
more
tolerant
than
C.
,
with
half-maximal
inhibitory
concentration
(IC50)
values
225.4
mg/L
23.4
mg/L,
respectively.
μ
Chl-a
content
decreased
presence
15
Zn,
whereas
those
unaffected
by
as
high
100
Zn.
Chlorophyll
indicated
regulation
energy
dissipation,
including
non-photochemical
quenching,
played
a
crucial
role
resistance
both
strains.
However,
case
quenching
inhibited
5
first
48
h,
1710,
it
remained
under
also
exhibited
20
times
stronger
capacity
regulating
electron
transfer
stress.
light
utilization
efficiency
(α)
had
most
highly
non-linear
correlation
μ,
indicating
process
well
protected
Collectively,
our
findings
demonstrate
photosystem
resilient
Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Апрель 8, 2024
Zinc
(Zn)
is
an
essential
trace
element
but
can
lead
to
water
contamination
and
ecological
deterioration
when
present
in
excessive
amounts.
Therefore,
investigating
the
photosynthetic
response
of
microalgae
Zn
stress
great
significance.
In
this
study,
we
assessed
responses
neutrophilic
Chlamydomonas
reinhardtii
acidophilic
sp.
1710
exposure
for
96
h.
The
specific
growth
rate
(μ),
chlorophyll-a
(Chl-a)
content,
chlorophyll
fluorescence
parameters
were
determined.
results
demonstrated
that
was
much
more
tolerant
than
C.
,
with
half-maximal
inhibitory
concentration
(IC50)
values
225.4
mg/L
23.4
mg/L,
respectively.
μ
Chl-a
content
decreased
presence
15
Zn,
whereas
those
unaffected
by
as
high
100
Zn.
Chlorophyll
indicated
regulation
energy
dissipation,
including
non-photochemical
quenching,
played
a
crucial
role
resistance
both
strains.
However,
case
quenching
inhibited
5
first
48
h,
1710,
it
remained
under
also
exhibited
20
times
stronger
capacity
regulating
electron
transfer
stress.
light
utilization
efficiency
(α)
had
most
highly
non-linear
correlation
μ,
indicating
process
well
protected
Collectively,
our
findings
demonstrate
photosystem
resilient
