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GNPS CoverCrop_RootExudates_LCMS/MS_DIA

ABSTRACT: 19 cover crops species root exudates were characterized by LC-MS/MS in DIA mode for chemical characterization of the root exudate profiles across different agricultural crops grown hydroponically.

INSTRUMENT(S): LC: Waters Acquity UPLC system MS: Waters Xevo G2-XS Q-TOF-MS

ORGANISM(S): Cover Crops

SUBMITTER: Jessica Prenni

PROVIDER: MSV000089385 | GNPS | Tue May 03 08:05:00 BST 2022

REPOSITORIES: GNPS

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CoverCrop_RootExudates_LCMS/MS_DIA

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The soil microbiome reduces Striga infection in sorghum by modulation of host-derived signaling molecules and root development

Project description:Sorghum bicolor is one of the most important cereal crops in the world, predominantly grown in sub‑Saharan Africa by smallholder farmers. Despite its outstanding resilience to abiotic stresses, approximately 20% of sorghum yield is annually lost on the African continent due to infestation with the parasitic weed Striga hermonthica. Existing Striga management strategies to decrease Striga infestation often show low efficiency and are not easily integrated into current agricultural practices. Microbial-based solutions may prove an effective, low-cost mode for reducing Striga parasitism in sub-Saharan Africa. Here, we demonstrate that the microbiome component of a field soil suppresses Striga infection of sorghum. Potential mechanisms underlying the soil microbiome’s influence on the host plant include root endodermal suberization and aerenchyma formation. Moreover, we observed a depletion of haustorium inducing factors, compounds essential for Striga to establish the host-parasite association, in root exudates collected from sorghum grown in the presence of the soil microbiome as compared to sterile conditions. We further identified individual microbial taxa associated with reduced Striga infection via changes in root cellular anatomy and differentiation as well as in exudate composition. Our study identifies a suite of traits that can be harnessed by individual microbial isolates or their consortia to induce Striga resistance. Combining microbes that elicit Striga resistance directly (affecting the parasite) via repression of haustorium formation with those that act indirectly (affecting the host), by reducing of Striga penetration through root tissue, can broaden the effectiveness of microbe-induced protection from Striga.

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