title: Molecular defense responses in roots and the rhizosphere against Fusarium oxysporum.
abstract: Plants face many different concurrent and consecutive abiotic and biotic stresses during their lifetime. Roots can be infected by numerous pathogens and parasitic organisms. Unlike foliar pathogens, root pathogens have not been explored enough to fully understand root-pathogen interactions and the underlying mechanism of defense and resistance. PR gene expression, structural responses, secondary metabolite and root exudate production, as well as the recruitment of plant defense-assisting "soldier" rhizosphere microbes all assist in root defense against pathogens and herbivores. With new high-throughput molecular tools becoming available and more affordable, now is the opportune time to take a deep look below the ground. In this addendum, we focus on soil-borne Fusarium oxysporum as a pathogen and the options plants have to defend themselves against these hard-to-control pathogens.
authors.affiliation: a Plant-Microbe Interactions Laboratory; School of Agriculture and Food Sciences; The University of Queensland ; Brisbane , Queensland , Australia.
authors.forename: Yi Chung
authors.initials: YC
authors.lastname: Chen
authors.forename: Brendan N
authors.initials: BN
authors.lastname: Kidd
authors.forename: Lilia C
authors.initials: LC
authors.lastname: Carvalhais
authors.forename: Peer M
authors.initials: PM
authors.lastname: Schenk
mesh_terms: D005670:Fusarium / Q000502:physiology*; D008954:Models, Biological; D018517:Plant Roots / Q000276:immunology* / Q000382:microbiology*; D058441:Rhizosphere
keywords: Arabidopsis; ET, ethylene; Fusarium oxysporum; ISR, induced systemic resistance; JA, jasmonic acid; PR, pathogenesis-related; ROS, reactive oxygen species; SA, salicylic acid.; plant defense; transcription factor