1. Specific Mycoparasite-Fusarium Graminearum Molecular Signatures in Germinating Seeds Disabled Fusarium Head Blight Pathogen’s Infection
- Author
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Vladimir Vujanovic, Seon Hwa Kim, Chithra Karunakaran, and Rachid Lahlali
- Subjects
0106 biological sciences ,0301 basic medicine ,Sphaerodes mycoparasitica ,Biological pest control ,interactome ,seeds ,01 natural sciences ,lcsh:Chemistry ,Fusarium ,Head blight ,Gene Expression Regulation, Fungal ,Pathogen ,lcsh:QH301-705.5 ,Spectroscopy ,Fusarium graminearum ,2. Zero hunger ,fourier transform infrared (FTIR) ,food and beverages ,General Medicine ,Computer Science Applications ,fusarium head blight (FHB) ,Biological Control Agents ,Germination ,Biology ,Catalysis ,Article ,Inorganic Chemistry ,Fungal Proteins ,03 medical and health sciences ,Ascomycota ,Botany ,biocontrol ,Physical and Theoretical Chemistry ,Molecular Biology ,Plant Diseases ,Volatile Organic Compounds ,Chemotype ,Organic Chemistry ,Protein Region ,biology.organism_classification ,030104 developmental biology ,lcsh:Biology (General) ,lcsh:QD1-999 ,13. Climate action ,mycoparasitism ,010606 plant biology & botany - Abstract
Advances in Infrared (IR) spectroscopies have entered a new era of research with applications in phytobiome, plant microbiome and health. Fusarium graminearum 3-ADON is the most aggressive mycotoxigenic chemotype causing Fusarium head blight (FHB) in cereals, while Sphaerodes mycoparasitica is the specific Fusarium mycoparasite with biotrophic lifestyle discovered in cereal seeds and roots. Fourier transform infrared (FTIR) spectroscopy analyses depicted shifts in the spectral peaks related to mycoparasitism mainly within the region of proteins, lipids, also indicating a link between carbohydrates and protein regions, involving potential phenolic compounds. Especially, S. mycoparasitica contributes to significant changes in lipid region 3050–2800 cm−1, while in the protein region, an increasing trend was observed for the peaks 1655–1638 cm−1 (amide I) and 1549–1548 cm−1 (amide II) with changes in indicative protein secondary structures. Besides, the peak extending on the region 1520–1500 cm−1 insinuates a presence of aromatic compounds in presence of mycoparasite on the F. graminearum root sample. Monitoring shift in improved seed germination, fungus-fungus interface through scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM), and FTIR molecular signatures combined with principal component analysis (PCA) proved useful tools to detect an early mycoparasitism as a vital asset of the preventive biocontrol strategy against plant pathogens.
- Published
- 2021