title: Fairy Chemicals, 2-Azahypoxanthine and 2-Aza-8-oxohypoxanthine, Regulate Carotenoid Accumulation in Citrus Juice Sacs in Vitro.
abstract: "Fairy chemicals", 2-azahypoxanthine (AHX) and 2-aza-8-oxohypoxanthine (AOH), are two novel plant-growth regulating compounds isolated from a fairy ring forming fungus, Lepista sordida. In the present study, the effects of AHX and AOH on the accumulation of carotenoids and expression of genes related to carotenoid metabolism were investigated in the juice sacs of Satsuma mandarin (Citrus unshiu Marc.) in vitro. The results showed that AHX and AOH regulated carotenoid metabolism in the citrus juice sacs. Carotenoid accumulation was induced by AHX in the second week and by AOH in the fourth week. In the meanwhile, the modification of carotenoid accumulation by the AHX and AOH treatments was highly regulated at the transcriptional level. The results presented herein provide new information on the functions of AHX and AOH in plants and contribute to elucidating the mechanisms by which AHX and AOH stimulate plant growth.
authors.affiliation: †Department of Biological and Environmental Sciences, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan.
authors.forename: Gang
authors.initials: G
authors.lastname: Ma
authors.affiliation: †Department of Biological and Environmental Sciences, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan.
authors.forename: Lancui
authors.initials: L
authors.lastname: Zhang
authors.affiliation: †Department of Biological and Environmental Sciences, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan.
authors.forename: Kazuki
authors.initials: K
authors.lastname: Yamawaki
authors.affiliation: †Department of Biological and Environmental Sciences, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan.
authors.forename: Masaki
authors.initials: M
authors.lastname: Yahata
authors.affiliation: §Department of Applied Biological Chemistry, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan.
authors.forename: Jae-Hoon
authors.initials: JH
authors.lastname: Choi
authors.affiliation: ‡Department of Applied Biological Chemistry, Faculty of Agriculture, and Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan.
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Kawagishi
authors.affiliation: †Department of Biological and Environmental Sciences, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan.
authors.forename: Masaya
authors.initials: M
authors.lastname: Kato
mesh_terms: D002338:Carotenoids / Q000032:analysis / Q000378:metabolism*; D002957:Citrus / Q000187:drug effects* / Q000235:genetics / Q000254:growth & development / Q000378:metabolism; D005638:Fruit / Q000187:drug effects / Q000235:genetics / Q000254:growth & development / Q000378:metabolism*; D018506:Gene Expression Regulation, Plant / Q000187:drug effects; D007042:Hypoxanthines / Q000494:pharmacology*; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism
chemical_list: C000591883:2-aza-8-oxohypoxanthine; D007042:Hypoxanthines; D010940:Plant Proteins; D002338:Carotenoids; C012759:2-azahypoxanthine
keywords: carotenoid; citrus; fairy ring; gene expression; plant growth regulator