The biogeography of microbial N cycle guilds of the rye rhizosphere along a tillage erosion catena DOI Creative Commons
Simon Lewin,

Marc Wehrhan,

Sonja Wende

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: July 25, 2024

Abstract Background Excessive fertilization and tillage erosion pose threats to food security crop yields. A transition towards more sustainable agricultural practices may be advanced by harnessing ecosystem services provided plant microbiomes. However, targeting microbiota at the agroecosystem scale necessitates bridging gap micro-scale structures of We hypothesized, that relevant changes microbial N cycle guilds in rhizosphere rye align with a soil catena determined erosion. Aboveground patterns biomass along such persist hummocky landscapes are practical relevance farmers. Results The topsoil four typical soils an arable field grown within Quillow catchment (NE Germany) was sampled. represent complete gradient from extremely eroded Calcaric Regosol over strongly Nudiargic Luvisol non-eroded Calcic colluvial Gleyic-Colluvic Regosols. Gene abundances characteristic were analysed using shotgun metagenomic sequencing. Distinct growth plants correlated nitrogen functions microbiome based on multivariate analyses. ratios describing differential denitrification potential differed significantly between soils. norBC gene abundance most coupled productivity, which is likely due its involvement into multiple interactions besides denitrification. Genes associated DNRA diazotrophy prevailed sites showed lowest productivity mineral availability. Additionally, limitation implied lowered gdh to glnA ratio association compared depositional site. Conclusions Thus, gradients legacy management as capture substantial functionality. These specific assembly function above ground field-plant accessible remote sensing. interrelation in-field opens up opportunity assess distribution functional scales production agroecosystems functioning.

Language: Английский

The biogeography of microbial N cycle guilds of the rye rhizosphere along a tillage erosion catena DOI Creative Commons
Simon Lewin,

Marc Wehrhan,

Sonja Wende

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: July 25, 2024

Abstract Background Excessive fertilization and tillage erosion pose threats to food security crop yields. A transition towards more sustainable agricultural practices may be advanced by harnessing ecosystem services provided plant microbiomes. However, targeting microbiota at the agroecosystem scale necessitates bridging gap micro-scale structures of We hypothesized, that relevant changes microbial N cycle guilds in rhizosphere rye align with a soil catena determined erosion. Aboveground patterns biomass along such persist hummocky landscapes are practical relevance farmers. Results The topsoil four typical soils an arable field grown within Quillow catchment (NE Germany) was sampled. represent complete gradient from extremely eroded Calcaric Regosol over strongly Nudiargic Luvisol non-eroded Calcic colluvial Gleyic-Colluvic Regosols. Gene abundances characteristic were analysed using shotgun metagenomic sequencing. Distinct growth plants correlated nitrogen functions microbiome based on multivariate analyses. ratios describing differential denitrification potential differed significantly between soils. norBC gene abundance most coupled productivity, which is likely due its involvement into multiple interactions besides denitrification. Genes associated DNRA diazotrophy prevailed sites showed lowest productivity mineral availability. Additionally, limitation implied lowered gdh to glnA ratio association compared depositional site. Conclusions Thus, gradients legacy management as capture substantial functionality. These specific assembly function above ground field-plant accessible remote sensing. interrelation in-field opens up opportunity assess distribution functional scales production agroecosystems functioning.

Language: Английский

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