Annual Review of Microbiology,
Journal Year:
2022,
Volume and Issue:
76(1), P. 579 - 596
Published: June 7, 2022
The
longstanding
interactions
between
mammals
and
their
symbionts
enable
thousands
of
mammal
species
to
consume
herbivorous
diets.
microbial
communities
in
degrade
both
plant
fiber
toxins.
Microbial
toxin
degradation
has
been
repeatedly
documented
domestic
ruminants,
but
similar
work
wild
is
more
limited
due
constraints
on
sampling
manipulating
the
these
species.
In
this
review,
we
briefly
describe
toxins
commonly
encountered
mammalian
diets,
major
classes
biotransformation
enzymes
microbes
mammals,
gut
chambers
that
house
symbiotic
microbes.
We
next
examine
evidence
for
detoxification
ruminants
before
providing
case
studies
foregut-
hindgut-fermenting
mammals.
end
by
discussing
may
be
promising
future
investigations,
advantages
limitations
approaches
currently
available
studying
Chemical Society Reviews,
Journal Year:
2021,
Volume and Issue:
50(14), P. 8003 - 8049
Published: Jan. 1, 2021
Technological
developments
enable
the
discovery
of
novel
enzymes,
advancement
enzyme
cascade
designs
and
pathway
engineering,
moving
biocatalysis
into
an
era
technology
integration,
intelligent
manufacturing
enzymatic
total
synthesis.
Molecules,
Journal Year:
2021,
Volume and Issue:
26(11), P. 3374 - 3374
Published: June 3, 2021
Phytochemicals
belonging
to
the
group
of
alkaloids
are
signature
specialized
metabolites
endowed
with
countless
biological
activities.
Plants
armored
these
naturally
produced
nitrogenous
compounds
combat
numerous
challenging
environmental
stress
conditions.
Traditional
and
modern
healthcare
systems
have
harnessed
potential
organic
for
treatment
many
ailments.
Various
chemical
entities
(functional
groups)
attached
central
moiety
responsible
their
diverse
range
properties.
The
development
characterization
plant
enzymes
involved
in
biosynthesis
is
an
utmost
priority
deliver
enhanced
advantages
terms
properties
productivity.
Further,
incorporation
whole/partial
metabolic
pathways
heterologous
system
and/or
overexpression
biosynthetic
steps
homologous
both
become
alternative
lucrative
methods
over
synthesis
recent
times.
Moreover,
in-depth
research
on
alkaloid
has
revealed
modifications
that
occur
during
alkaloidal
conversions.
These
reactions
involve
glycosylation,
acylation,
reduction,
oxidation,
methylation
steps,
they
usually
conferring
activities
possessed
by
alkaloids.
In
this
review,
we
aim
discuss
brief
classification
covering
major
categories.
We
also
emphasize
diversity
basic
structures
arising
through
enzymatically
catalyzed
structural
certain
species,
as
well
emerging
role
defense
mechanisms
action
briefly
discussed.
commercial
utilization
marketplace
displaying
various
applications
been
enumerated.
Chemical Society Reviews,
Journal Year:
2021,
Volume and Issue:
51(2), P. 594 - 627
Published: Dec. 20, 2021
The
many
waves
of
biocatalysis
have
arisen
to
solve
long-standing
synthetic
challenges.
From
industrially
applied
hydrolases
enzymes
catalysing
selective
C–C-bond
formation,
enables
new
tools
access
a
plethora
compounds.
Frontiers in Plant Science,
Journal Year:
2022,
Volume and Issue:
13
Published: April 8, 2022
Plant
specialized
metabolites
(PSMs)
play
essential
roles
in
the
adaptation
to
harsh
environments
and
function
plant
defense
responses.
PSMs
act
as
key
components
of
defense-related
signaling
pathways
trigger
extensive
expression
genes.
In
addition,
serve
antioxidants,
participating
scavenging
rapidly
rising
reactive
oxygen
species,
chelators,
chelation
toxins
under
stress
conditions.
include
nitrogen-containing
chemical
compounds,
terpenoids/isoprenoids,
phenolics.
Each
category
secondary
has
a
specific
biosynthetic
pathway,
including
precursors,
intermediates,
end
products.
The
basic
representative
are
summarized,
providing
potential
target
enzymes
stress-mediated
regulation
Multiple
metabolic
share
same
origin,
common
frequently
be
targets
regulation.
Most
controlled
by
different
environmental
genetic
factors.
Here,
we
summarized
effects
factors,
abiotic
biotic
stresses,
on
PSM
biosynthesis
various
plants.
We
also
discuss
positive
negative
transcription
factors
involved
pathways.
genes
stress-related
were
summarized.
further
found
that
downstream
these
Transcription
(TFs)
enriched
synthesis
pathway
suggesting
an
effective
role
precursors
enhancing
terminal
present
review
provides
valuable
insights
regarding
screening
regulators
PSM-mediated
protection
non-model
Proceedings of the National Academy of Sciences,
Journal Year:
2021,
Volume and Issue:
118(24)
Published: June 10, 2021
Plants
synthesize
many
diverse
small
molecules
that
affect
function
of
the
mammalian
central
nervous
system,
making
them
crucial
sources
therapeutics
for
neurological
disorders.
A
notable
portion
neuroactive
phytochemicals
are
lysine-derived
alkaloids,
but
mechanisms
by
which
plants
produce
these
compounds
have
remained
largely
unexplored.
To
better
understand
how
metabolites,
we
focused
on
biosynthesis
Lycopodium
alkaloids
produced
club
mosses,
a
clade
used
traditionally
as
herbal
medicines.
Hundreds
been
described,
including
huperzine
(HupA),
an
acetylcholine
esterase
inhibitor
has
generated
interest
treatment
symptoms
Alzheimer's
disease.
Through
combined
metabolomic
profiling
and
transcriptomics,
identified
developmentally
controlled
set
biosynthetic
genes,
or
potential
regulon,
alkaloids.
The
discovery
this
putative
regulon
facilitated
reconstitution
functional
characterization
six
enzymes
act
in
initiation
conclusion
HupA
biosynthesis.
This
includes
type
III
polyketide
synthase
catalyzes
imine-polyketide
condensation,
well
three
Fe(II)/2-oxoglutarate-dependent
dioxygenase
(2OGD)
catalyze
transformations
(pyridone
ring-forming
desaturation,
piperidine
ring
cleavage,
redox-neutral
isomerization)
within
downstream
Our
results
expand
diversity
known
chemical
catalyzed
2OGDs
provide
mechanistic
insight
into
noncanonical
PKS
generate
plant
alkaloid
scaffolds.
These
data
offer
logic
Lys-derived
demonstrate
tightly
coordinated
coexpression
secondary
metabolic
genes
medicinal
Natural Product Reports,
Journal Year:
2022,
Volume and Issue:
39(7), P. 1465 - 1482
Published: Jan. 1, 2022
Covering:
up
to
2022Plants
produce
a
wide
range
of
structurally
and
biosynthetically
diverse
natural
products
interact
with
their
environment.
These
specialised
metabolites
typically
evolve
in
limited
taxonomic
groups
presumably
response
specific
selective
pressures.
With
the
increasing
availability
sequencing
data,
it
has
become
apparent
that
many
cases
genes
encoding
biosynthetic
enzymes
for
metabolic
pathways
are
not
randomly
distributed
on
genome.
Instead
they
physically
linked
structures
such
as
arrays,
pairs
clusters.
The
exact
function
these
clusters
is
debated.
In
this
review
we
take
broad
view
gene
arrangement
plant
metabolism,
examining
types
variation.
We
discuss
evolution
wider
context
populations
epigenetics.
Finally,
synthesise
our
observations
propose
new
hypothesis
cluster
formation
plants.
Evidence-based Complementary and Alternative Medicine,
Journal Year:
2022,
Volume and Issue:
2022, P. 1 - 18
Published: March 9, 2022
Alkaloids
are
a
type
of
natural
compound
possessing
different
pharmacological
activities.
Natural
products,
including
alkaloids,
which
originate
from
plants,
have
emerged
as
potential
protective
agents
against
neurodegenerative
disorders
(NDDs)
and
chronic
inflammations.
A
wide
array
prescription
drugs
used
these
conditions,
however,
not
free
limitations
potency,
side
effects,
intolerability.
In
the
context
personalized
medicine,
further
research
on
alkaloids
to
unravel
novel
therapeutic
approaches
in
reducing
complications
is
critical.
this
review,
systematic
survey
was
executed
collect
literature
their
health
complications,
we
found
that
majority
exhibit
anti-inflammatory
action
via
nuclear
factor-κB
cyclooxygenase-2
(COX-2),
neuroprotective
interaction
through
acetylcholinesterase
(AChE),
COX,
β-site
amyloid
precursor
protein
activity.
silico
ADMET
ProTox-II-related
descriptors
were
calculated
predict
properties
280
isolated
traditional
medicinal
plants
towards
drug
development.
Out
which,
eight
such
tetrahydropalmatine,
berberine,
tetrandrine,
aloperine,
sinomenine,
oxymatrine,
harmine,
galantamine
be
optimal
within
categorical
range
when
compared
nicotine.
These
could
exploited
starting
materials
for
synthesis
or,
lesser
extent,
manage
inflammation
neurodegenerative-related
complications.
Horticulture Research,
Journal Year:
2022,
Volume and Issue:
9
Published: Jan. 1, 2022
Globally,
medicinal
plant
natural
products
(PNPs)
are
a
major
source
of
substances
used
in
traditional
and
modern
medicine.
As
we
human
race
face
the
tremendous
public
health
challenge
posed
by
emerging
infectious
diseases,
antibiotic
resistance
surging
drug
prices
etc.,
harnessing
healing
power
plants
gifted
from
mother
nature
is
more
urgent
than
ever
helping
us
survive
future
sustainable
way.
PNP
research
efforts
pre-genomic
era
focus
on
discovering
bioactive
molecules
with
pharmaceutical
activities,
identifying
individual
genes
responsible
for
biosynthesis.
Critically,
systemic
biological,
multi-
inter-disciplinary
approaches
integrating
interrogating
all
accessible
data
genomics,
metabolomics,
structural
biology,
chemical
informatics
necessary
to
accelerate
full
characterization
biosynthetic
regulatory
circuitry
producing
PNPs
plants.
In
this
review,
attempt
provide
brief
update
current
focusing
how
different
state-of-the-art
biotechnologies
facilitate
their
discovery,
molecular
basis
biosynthesis,
as
well
synthetic
biology.
Finally,
humbly
foresight
trend
understanding
biology
coming
decades.
Metabolic Engineering Communications,
Journal Year:
2022,
Volume and Issue:
14, P. e00194 - e00194
Published: Feb. 16, 2022
Plants
are
a
rich
source
of
bioactive
compounds,
many
which
have
been
exploited
for
cosmetic,
nutritional,
and
medicinal
purposes.
Through
the
characterization
metabolic
pathways,
as
well
mechanisms
responsible
accumulation
secondary
metabolites,
researchers
able
to
increase
production
compounds
in
different
plant
species
research
commercial
applications.
The
intent
current
review
is
describe
engineering
methods
that
used
transform
vitro
or
field-grown
plants
over
last
decade
identify
most
effective
approaches
alkaloids.
articles
summarized
were
categorized
into
six
groups:
endogenous
enzyme
overexpression,
foreign
transcription
factor
gene
silencing,
genome
editing,
co-overexpression.
We
conclude
that,
because
complex
multi-step
nature
biosynthetic
approach
has
commonly
biosynthesis
alkaloids,
terms
fold
increase,
co-overexpression
two
more
rate-limiting
enzymes
followed
by
manipulation
regulatory
genes.