Multi-omics analysis on an agroecosystem reveals the significant role of organic nitrogen to increase agricultural crop yield

Proceedings of the National Academy of Sciences of the United States of America
Yasunori IchihashiNaoto Nihei

Abstract

Both inorganic fertilizer inputs and crop yields have increased globally, with the concurrent increase in the pollution of water bodies due to nitrogen leaching from soils. Designing agroecosystems that are environmentally friendly is urgently required. Since agroecosystems are highly complex and consist of entangled webs of interactions between plants, microbes, and soils, identifying critical components in crop production remain elusive. To understand the network structure in agroecosystems engineered by several farming methods, including environmentally friendly soil solarization, we utilized a multiomics approach on a field planted with Brassica rapa We found that the soil solarization increased plant shoot biomass irrespective of the type of fertilizer applied. Our multiomics and integrated informatics revealed complex interactions in the agroecosystem showing multiple network modules represented by plant traits heterogeneously associated with soil metabolites, minerals, and microbes. Unexpectedly, we identified soil organic nitrogen induced by soil solarization as one of the key components to increase crop yield. A germ-free plant in vitro assay and a pot experiment using arable soils confirmed that specific organic nitro...Continue Reading

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Citations

Jan 26, 2021·Plant Science : an International Journal of Experimental Plant Biology·Aitor VillateOier Aizpurua-Olaizola
Dec 29, 2020·Frontiers in Genetics·Michal KrassowskiBiswapriya B Misra
Mar 26, 2021·Microbiome·Ling XuDevin Coleman-Derr
Mar 4, 2021·The New Phytologist·Pankaj TrivediJan E Leach
Jul 21, 2021·International Journal of Molecular Sciences·Sajad AliHanhong Bae
Aug 26, 2021·Environmental Science and Pollution Research International·Haishu SunQunhui Wang
Oct 2, 2021·Frontiers in Microbiology·Yoshie HoriHirokazu Toju

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Datasets Mentioned

BETA
DRA007555

Methods Mentioned

BETA
amplicon sequencing
PCA
NMR
PCR
Illumina sequencing

Software Mentioned

USEARCH
PERMANOVA
SpinCouple
ImageJ
NMDS
vegan
hsqcetgpsisp2
Bruker TopSpin
PERMDISP
jresgpprqf

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