Mortierella fungal inoculant for enhancing corn growth and biotic stress resistance
A beneficial fungal strain technology leveraging Mortierella spp. to promote corn growth and suppress pathogen infection. The solution manipulates plant-associated microbiomes, regulates phytohormone pathways, and enhances soil and root microbiome function to improve crop resilience against biotic stress.
Overview
This research proposes the use of Mortierella spp., beneficial fungal strains that function as saprotrophs and root endophytes, to enhance corn growth and improve resistance to biotic stress such as pathogen infection. Mortierella promotes plant health through two complementary mechanisms: directly manipulating microbiome-plant interactions and indirectly regulating the composition and function of soil and root microbiomes. The fungus also modulates plant phytohormone pathways and inducible defense responses, helping crops resist pathogens like Fusarium spp. This approach offers a biologically driven alternative to chemical pesticides and synthetic growth promoters, with potential applications in sustainable agriculture and crop protection.
Technical specifications
Key features and mechanisms:
- Mortierella as a root endophyte colonizes plant roots and interacts with host tissues to stimulate growth and defense
- Pathogen suppression through regulation of plant-associated microbiomes that outcompete or inhibit harmful organisms
- Phytohormone pathway regulation to activate inducible defense responses against biotic stressors
- Soil microbiome engineering by processing chitin and interacting with soil biota, enhancing nutrient cycling and soil health
- Comparative genomics of fungal isolates to identify genomic features linked to plant stress alleviation
- Metatranscriptomic analysis of colonized roots to reveal gene expression mechanisms underlying plant-microbe interactions
- Multi-omics validation including physiological, chemical, metabolic, and microbial community analyses of colonized plants and soil
Technology readiness level
The technology is at an early-to-mid stage of development. Preliminary validation has been completed in a Mortierella-Fusarium-cotton bioassay, where inoculation with M. elongata increased cotton height, biomass, and chlorophyll while alleviating the negative effects of F. oxysporum on plant growth. Future validation will involve soil bioassays and corn-fungal mesocosm sterile systems co-inoculated with beneficial fungal strains and major corn pathogens. The research team will employ comparative genomics, metatranscriptomics, and multi-omics approaches to characterize mechanisms and validate efficacy in corn specifically. Field-scale testing and commercial formulation development remain to be pursued.
About University of Florida
The University of Florida is a comprehensive public research university with a broad academic and research portfolio and a statewide presence. Industry collaborates through co-located labs and shared core facilities and through an integrated academic health system that accelerates clinical translation. A statewide extension network and multiple research and education sites connect companies with field-scale testing and rapid deployment, while incubators and an adjacent innovation district provide pathways from lab to market. Research is supported by competitive funding from major federal agencies such as NIH, NSF, USDA, and DOE. A dedicated technology transfer office supports IP, licensing, and startup formation.
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