Complex sentence: Certain microbial molecules, such as viral nucleotides and protein antigens, can elicit an immune system response against invading pathogens mediated by signal transduction processes, such as plant-pathogen resistance in "Arabidopsis thaliana".
Split into simpler sentences: Certain microbial molecules, such as viral nucleotides and protein antigens, can elicit an immune system response against invading pathogens mediated by signal transduction processes. For example, plant-pathogen resistance in "Arabidopsis thaliana".