OsLdh7 Overexpression in Rice Confers Submergence Tolerance by Regulating Key Metabolic Pathways: Anaerobic Glycolysis, Ethanolic Fermentation and Amino Acid Metabolism
Yajnaseni Chatterjee,
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Surabhi Tomar,
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M. K. Mishra
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et al.
Plant Cell & Environment,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 9, 2025
ABSTRACT
Lactate
dehydrogenase
plays
a
key
role
in
alleviating
hypoxia
during
prolonged
submergence.
To
explore
the
function
of
OsLdh7
gene
enhancing
submergence
tolerance,
we
overexpressed
this
rice
(
Oryza
sativa
cv.
IR64)
and
subjected
transgenic
lines
to
complete
inundation.
The
overexpression
showed
enhanced
viability,
chlorophyll
content
photosystem
II
(PSII)
efficiency
compared
wild‐type
(WT)
plants
under
stress
recovery
conditions.
Additionally,
these
exhibited
better
starch
accumulation
reduced
reactive
oxygen
species
(ROS)
accumulation.
Protein−protein
interaction
studies
revealed
that
interacts
with
OsLos2,
OsPdc2,
OsAlaAT2
OsAsp2.
Under
submergence,
enzyme
activities
OsLdh7,
OsAsp2
OsAdh1
led
higher
NAD
+
levels,
sustaining
anaerobic
glycolytic
flux
increasing
pyruvate,
critical
carbon
source
for
amino
acid
metabolism
as
well
fermentation
pathways.
Elevated
l
‐lactate
levels
resulted
increased
activity
which
eventually
ethanol
production.
also
accumulated
aspartate,
glutamate
alanine,
crucial
ROS
reduction
energy
production
recovery.
These
findings
suggest
confers
tolerance
by
regulating
important
metabolic
pathways‐
glycolysis,
ethanolic
rice.
Language: Английский
Discerning Genes to Deliver Varieties: Enhancing Vegetative and Reproductive Stage Flooding Tolerance in Rice
Sanchika Snehi,
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Ravi Kiran,
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Sanket Rathi
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et al.
Rice Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Language: Английский
A systematic review on the implications of concurrent heat and drought stress in modulating floral development in plants
Surbhi Kumari,
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Sahana Basu,
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G. K. Ravi Kumar
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et al.
Plant Science,
Journal Year:
2024,
Volume and Issue:
349, P. 112248 - 112248
Published: Sept. 11, 2024
Language: Английский
Submergence Stress Reduces the Ability of Rice to Regulate Recovery after Disaster
Yanmei Yu,
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Yan Meng,
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Peng Chen
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et al.
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(6), P. 1319 - 1319
Published: June 18, 2024
Flood
submergence
has
devastating
effects
on
agricultural
production
in
China,
with
rice
being
particularly
vulnerable
to
its
impacts.
Previous
studies
stress
have
primarily
focused
immediate
yield
reduction
and
short-term
growth.
In
this
study,
a
experiment
was
carried
out
by
using
the
method
of
potted
flooding.
The
growth
recovery
characteristics
under
different
were
analyzed
through
continuous
observation
after
disaster.
results
showed
that
had
persistent
effect
growth,
which
persisted
until
period
ability
plants
decreased
aggravation
stress,
leading
increased
damage
plant.
average
17.07%
15.56%
due
during
jointing
booting
stage,
respectively.
current
study
pointed
traits
and,
furthermore,
mechanism
physiological
changes
need
be
explored
order
understand
flooding
rice.
Language: Английский