title: A rare sugar, d-allose, confers resistance to rice bacterial blight with upregulation of defense-related genes in Oryza sativa.
abstract: We investigated responses of rice plant to three rare sugars, d-altrose, d-sorbose, and d-allose, due to establishment of mass production methods for these rare sugars. Root growth and shoot growth were significantly inhibited by d-allose but not by the other rare sugars. A large-scale gene expression analysis using a rice microarray revealed that d-allose treatment causes a high upregulation of many defense-related, pathogenesis-related (PR) protein genes in rice. The PR protein genes were not upregulated by other rare sugars. Furthermore, d-allose treatment of rice plants conferred limited resistance of the rice against the pathogen Xanthomonas oryzae pv. oryzae but the other tested sugars did not. These results indicate that d-allose has a growth inhibitory effect but might prove to be a candidate elicitor for reducing disease development in rice.
authors.affiliation: Faculty of Agriculture, Gene research Center and rare Sugar Research Center , Kagawa University, Miki , Kagawa, Japan.
authors.forename: Akihito
authors.initials: A
authors.lastname: Kano
authors.forename: Kenji
authors.initials: K
authors.lastname: Gomi
authors.forename: Yumiko
authors.initials: Y
authors.lastname: Yamasaki-Kokudo
authors.forename: Masaru
authors.initials: M
authors.lastname: Satoh
authors.forename: Takeshi
authors.initials: T
authors.lastname: Fukumoto
authors.forename: Kouhei
authors.initials: K
authors.lastname: Ohtani
authors.forename: Shigeyuki
authors.initials: S
authors.lastname: Tajima
authors.forename: Ken
authors.initials: K
authors.lastname: Izumori
authors.forename: Keiji
authors.initials: K
authors.lastname: Tanaka
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Ishida
authors.forename: Yasuomi
authors.initials: Y
authors.lastname: Tada
authors.forename: Yoko
authors.initials: Y
authors.lastname: Nishizawa
authors.forename: Kazuya
authors.initials: K
authors.lastname: Akimitsu
mesh_terms: D018506:Gene Expression Regulation, Plant / Q000187:drug effects* / Q000235:genetics / Q000502:physiology*; D005947:Glucose / Q000737:chemistry / Q000494:pharmacology*; D015394:Molecular Structure; D009005:Monosaccharides / Q000737:chemistry / Q000494:pharmacology; D012275:Oryza / Q000187:drug effects* / Q000235:genetics / Q000276:immunology / Q000382:microbiology*; D010935:Plant Diseases / Q000235:genetics / Q000276:immunology / Q000382:microbiology*; D013013:Sorbose / Q000737:chemistry / Q000494:pharmacology; D014974:Xanthomonas / Q000254:growth & development / Q000276:immunology
chemical_list: D009005:Monosaccharides; C002055:allose; D005947:Glucose; D013013:Sorbose