Proceedings of the National Academy of Sciences,
Год журнала:
2023,
Номер
120(37)
Опубликована: Авг. 30, 2023
Adaptive
radiations—species
descended
from
a
common
ancestor
that
are
adapted
to
wide
variety
of
ecological
niches—occur
frequently
on
remote
islands
where
colonist
finds
few
competitors
in
an
unexploited
landscape.
We
examined
...We
investigated
whether
celebrated
cases
evolutionary
radiations
passerine
birds
have
produced
exceptional
morphological
diversity
relative
comparable-aged
globally.
Based
eight
external
measurements,
we
calculated
the
...
Microorganisms,
Год журнала:
2025,
Номер
13(3), С. 581 - 581
Опубликована: Март 4, 2025
The
interplay
between
soil
rhizobial
bacteria
and
leguminous
plants,
particularly
in
Africa,
has
a
profound
impact
on
photosynthetic
efficiency
overall
crop
productivity.
This
review
explores
the
critical
role
of
rhizobia
enhancing
photosynthesis
through
nitrogen
fixation,
process
crucial
for
sustainable
agriculture.
Rhizobial
residing
root
nodules
provide
legumes
with
symbiotic
that
significantly
boosts
plant
growth
capacity.
Recent
advances
molecular
genomics
have
elucidated
genetic
frameworks
underlying
this
symbiosis,
identifying
key
genes
involved
nodule
formation
fixation.
Comparative
Bradyrhizobium
species
revealed
seven
distinct
lineages,
diverse
traits
linked
to
nodulation,
photosynthesis.
Field
studies
across
Africa
demonstrate
inoculation
can
markedly
increase
grain
yields,
though
outcomes
vary
depending
local
conditions
legume
species.
Notable
findings
include
enhanced
nutrient
uptake
rates
inoculated
compared
nitrate-fed
plants.
highlights
potential
utilizing
indigenous
improve
resilience.
Future
prospects
involve
leveraging
genomic
insights
optimize
inoculants
enhance
productivity
water-limited
environments.
As
climate
change
intensifies,
integrating
these
advancements
into
agricultural
practices
could
play
improving
food
security
health
Africa.
Agronomy,
Год журнала:
2023,
Номер
13(4), С. 997 - 997
Опубликована: Март 28, 2023
It
has
been
established
that
maize/soybean
intercropping
can
improve
nitrogen
use
efficiency.
However,
few
studies
have
addressed
how
affects
nitrogen-fixing
bacterial
diversity
and
N
fixation
efficiency
of
intercropped
soybean.
In
this
study,
communities,
efficiency,
their
relationships
with
soil
properties
under
three
fertilization
application
rates
(N0
0
kg/ha,
N1
40
N2
80
kg/ha)
were
explored
through
field
experiments.
Nitrogen
bacteria
assessed
using
15N
natural
abundance,
Illumina
high-throughput
sequencing,
nifH
(nitrogen
fixation)
gene
copies
quantification
in
the
rhizosphere
The
results
showed
significantly
decreased
diversity,
soil.
nodule
number,
dry
weight
soybean
highest
N0
treatment,
was
treatment.
N0,
N1,
treatments
increased
by
69%,
59%,
42%
number
10%,
22%,
21%,
respectively,
compared
monocultures.
There
a
significant
positive
correlation
between
negative
available
nitrogen.
Bradyrhizobium
abundance
increase
correlated
AN
(available
nitrogen)
pH
content
rhizosphere.
These
help
us
to
understand
mechanisms
which
improved,
fertilizer
could
be
reduced
legume/Gramineae
intercropping,
is
important
sustainability
agricultural
production.
Soil Use and Management,
Год журнала:
2025,
Номер
41(1)
Опубликована: Янв. 1, 2025
Abstract
Current
horticultural
practices
typically
require
high
demands
of
fertilizers,
leading
to
significant
environmental
impacts
and
increased
production
costs.
Alternatives
based
on
microbial
inoculants
have
garnered
considerable
interest
owing
their
potential
enhance
soil
quality
whilst
reducing
external
inputs
costs,
all
without
compromising
productivity.
This
study
aimed
compare
the
impact
four
fertilizer
application
strategies,
including
mineral
fertilizers
inoculants,
crop
yield,
fertility
functionality
greenhouse
gas
emissions
in
potato
Southern
Spain.
Four
treatments
were
tested:
(i)
added
meet
crop's
nutritional
needs
(F100);
(ii)
a
50%
reduction
F100
rate
(F50);
(iii)
combined
with
formulation
containing
nutrient‐solubilizing
bacteria,
nitrogen‐fixing
bacteria
non‐mycorrhizal
fungi
(BAI+FU)
(iv)
N,
P
K
solubilizing
(BAII).
Results
showed
that
yield
was
unaffected
by
different
treatments.
However,
mean
tuber
weight
firmness
significantly
higher
under
BAI+FU
treatment,
indicating
improved
product
quality.
CO
2
release
rates
decreased
25%,
34%
42%
F50,
BAII
treatments,
respectively,
compared
F100.
The
N
O
CH
4
or
nutrient
contents
not
affected
except
for
ammonium
content,
which
highest
treatment.
Additionally,
overall
bacterial
fungal
abundance
affected,
treatment
resulted
number
nirK
(denitrification)
cbbL
(carbon
fixation)
gene
copies.
Therefore,
combining
biofertilizers
reduced
chemical
could
represent
sustainable
strategy
mitigating
climate
change
enhancing
production.
Abstract
Background
The
Sub-Saharan
African
food
system
is
facing
multiple
threats,
including
soil
nutrient
depletion,
monoculture
cereal
farming,
population
expansion,
and
climate
change.
These
factors
collectively
pose
a
risk
to
agricultural
productivity
security
in
the
region.
Scope
Bambara
groundnut
(BGN)
(Vigna
subterranea
[L.]
Verdc)
yield
has
been
decline
due
various
abiotic
such
as
high
temperature,
drought,
salinity,
well
biotic
like
nitrogen-fixing
symbiont
host
specificity.
challenges
have
negatively
impacted
crop
security.
This
review
highlights
significance
of
BGN
addressing
insecurity
explores
its
potential
advantages
for
small-scale
farmers.
provides
good
example
strong
effects
microbiome,
particularly
specific
symbionts
root
nodules,
on
production
systems.
A
focus
this
highlight
applications
biofertilizers
groundnut.
Conclusion
emphasizes
improve
fertility,
using
inoculation
technology,
which
could
benefit
farmers
contribute
enhancing
Bradyrhizobium
inoculants
may
be
designed
specifically
cultivar
level
BGN.
