TY - JOUR
T1 - Increased Yield and High Resilience of Microbiota Representatives With Organic Soil Amendments in Smallholder Farms of Uganda
AU - Köberl, Martina
AU - Kusstatscher, Peter
AU - Wicaksono, Wisnu Adi
AU - Mpiira, Samuel
AU - Kalyango, Francis
AU - Staver, Charles
AU - Berg, Gabriele
PY - 2022/2/2
Y1 - 2022/2/2
N2 - Organic matter inputs positively affect soil fertility and quality but
management effects on the soil and plant microbiome are less understood.
Therefore, we studied the response of microbial colonization of the
East African highland banana cultivar “Mpologoma” (AAA genome) under
different mulch and manure treatments on three representative
smallholder farms in Uganda. In general, the gammaproteobacterial
community appeared stable with no significant response to organic matter
inputs after 24 months of treatment. Significant differences (p
< 0.05) in the plant-associated carpo-, phyllo-, and rhizosphere
microbial community composition and diversity were found among
individual sampled farms, independent of added soil inputs. Across
farms, banana fruit harbored a richer and more balanced
gammaproteobacterial community than the rhizo- and endospheres.
Gammaproteobacterial beta diversity was shaped by the microenvironment
(44%) as well as the sampling site (4%). Global effects of treatments in
the rhizosphere analyzed using linear discriminant analysis effect size
showed significantly enriched genera, such as Enterobacter,
under manure and mulch treatments. As shown in previous works, bunch
size and total yield were highly increased with manure and mulch,
however, our results highlight general short-term microbial stability of
Ugandan banana cropping systems with increases in the
gammaproteobacterial community.
AB - Organic matter inputs positively affect soil fertility and quality but
management effects on the soil and plant microbiome are less understood.
Therefore, we studied the response of microbial colonization of the
East African highland banana cultivar “Mpologoma” (AAA genome) under
different mulch and manure treatments on three representative
smallholder farms in Uganda. In general, the gammaproteobacterial
community appeared stable with no significant response to organic matter
inputs after 24 months of treatment. Significant differences (p
< 0.05) in the plant-associated carpo-, phyllo-, and rhizosphere
microbial community composition and diversity were found among
individual sampled farms, independent of added soil inputs. Across
farms, banana fruit harbored a richer and more balanced
gammaproteobacterial community than the rhizo- and endospheres.
Gammaproteobacterial beta diversity was shaped by the microenvironment
(44%) as well as the sampling site (4%). Global effects of treatments in
the rhizosphere analyzed using linear discriminant analysis effect size
showed significantly enriched genera, such as Enterobacter,
under manure and mulch treatments. As shown in previous works, bunch
size and total yield were highly increased with manure and mulch,
however, our results highlight general short-term microbial stability of
Ugandan banana cropping systems with increases in the
gammaproteobacterial community.
KW - banana fruit microbiome
KW - Gammaproteobacteria
KW - manure
KW - mulch
KW - organic soil amendments
KW - plant-associated microbiota
KW - smallholder farms
UR - http://dx.doi.org/10.3389/fpls.2021.815377
UR - http://www.scopus.com/inward/record.url?scp=85124771115&partnerID=8YFLogxK
U2 - 10.3389/fpls.2021.815377
DO - 10.3389/fpls.2021.815377
M3 - Article
SN - 1664-462X
VL - 12
JO - Frontiers in Plant Science
JF - Frontiers in Plant Science
M1 - 815377
ER -