Proteome impact on maize silks under the priming state induced by Trichoderma root colonization

Trichoderma hamatum can act as an inter-plant communicator of foliar pathogen infections by colonizing the roots of nearby plants: A new inter-plant “wired communication”

“…In the absence of pathogens, root colonization by T. hamatum causes an increase in the systemic expression of SA-and JA-related genes, a sign of the endophytic fungus's ability to induce systemic plant defensive responses before pathogens or pests attack, mechanism called priming, which has been previously described in different Trichoderma species (Gupta and Bar, 2020;Agostini et al, 2021;Morán-Diez et al, 2021). This systemic activation of plant defenses by Trichoderma-roots colonization can involve both SA-and JA/ET-related genes, against biotrophic or necrotrophic pathogens, therefore, through induced systemic resistance (ISR) and/or systemic acquired resistance (SAR) (Nawrocka and Małolepsza, 2013).…”

Advances and Perspectives in the Use of Biocontrol Agents against Fungal Plant Diseases

“…Comparison between proteomic and transcriptomic data suggests differential response regulation. Proteins from the phenylpropanoid pathway are activated to quickly respond to pathogen attacks [227]. The RNA-seq analysis of the expression of genes involved in plant hormone signalling pathways related to ISR revealed active participation of JA and SA signalling pathways, which further indicated the involvement of ISR and SAR in the protection of tomato plants from Alternaria solani operated by Chaetomium globosum [228].…”

“…This second approach (that has gained relevance over the years due to the evolution of new techniques) is based on the use of molecular tools for the detection of ROS and phytoalexins using fluorescence measurements, enzymatic and proteomic analysis, and differentially expressed genes as markers. For example, Agostini et al [227] analysed the proteome and transcriptome on maize silks following priming induced by Trichoderma root colonization, showing that Trichoderma activates plant proteins to counteract Fusarium infection. Comparison between proteomic and transcriptomic data suggests differential response regulation.…”