Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 19, 2024
Abstract
Algae-bacteria
interactions
play
an
essential
role
in
the
transformation
of
complex
organics
microalgal-bacterial
granular
sludge
(MBGS),
but
intrinsic
removal
mechanisms
have
not
been
well
understood.
This
study
thus
attempted
to
investigate
performance
and
real
municipal
wastewater
MBGS
process.
The
results
showed
that
could
be
effectively
disposed
during
day-night
cycles
by
MBGS,
with
process
significant
impacted
influent
C/N
ratio.
Further
metagenomic
metatranscriptomic
analyses
revealed
upregulated
gap2
gpmA
genes
glycolysis
enhanced
conversion
CO2
mediated
Chlorophyceae
Acidobacteriae/Sumerlaeia/Fimbriimonadia,
while
petH
gene
NADPH
synthesis
Cyanobacteria
strengthened
fixation
into
biomass.
Meanwhile,
functional
amyA
starch
metabolism
Actinobacteriota
was
upregulated,
along
gldA
glycerolipid
through
Chloroflexia/Verrucomicrobiae.
Moreover,
a
close
symbiotic
relationship
between
Desulfobacterota
I
identified,
which
played
crucial
fatty
acid
decomposition.
offers
new
insights
degradation
via
symbiosis,
also
gains
basic
knowledge
on
carbon
cycle
natural
water
ecosystems
symbiosis.
