Functional genomics and phenotypic characterization of PGP and biocontrol traits of rhizospheric Streptomyces spp. from Mexican milpa agroecosystem
Abstract
Traditional
Mesoamerican
milpa
is
an
ancient
agroecosystem
with
actual
cultural
and
economic
importance,
particularly
for
auto-consume
agriculture.
This
includes
several
plants
of
American
origin,
establishing
many
beneficial
ecological
relationships
among
them
plant-microbe
interactions.
In
this
study,
a
collection
Streptomyces strains
was
isolated
from
the
rhizosphere
native
Cacahuacintle
maize,
squash,
fava
bean,
huauzontle,
all
which
exhibited
various
in
vitro
plant
growth-promoting
(PGP)
activities
such
as
ammonium
production,
phosphate
solubilization,
siderophore
moreover,
Streptomyces
sp.
FR-108
bean
Streptomyces
griseus
MR-45
maize
increased
biomass
short-term
greenhouse
assay.
Among
other
strains,
SR-10
squash
albidoflavus
MR-37
expressed
extracellular
enzyme
secretion
antagonistic
against
phytopathogenic
fungi.
Comparative
fuctional
genomic
analysis
these
strains
revealed
extensive
gene
repertoires
involved
growth
promotion
by
nutrient
acquisition,
tolerance
to
osmotic,
drought,
chemical,
temperature
stresses,
mutualistic
interactions,
fungi,
bacteria,
insects,
protist
biocontrol.
It
not
common
find
species
genus
Streptomyces as
bacteria
(PGPB)
agroecosystems;
however,
findings
highlight
untapped
potential
milpa-associated
members
bioinoculants
sustainable
or
agriculture
underscore
importance
traditional
agroecosystems
sources
microorganisms.
Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown
Published: May 16, 2025
Language: Английский