title: Rhodestrin: a novel indole terpenoid phytohormone from Rhodobacter sphaeroides.
abstract: A new phytohormone was isolated as a metabolite of anthranilate photobiotransformation by Rhodobacter sphaeroides OU5. It was identified by MS and NMR ((1)H, (13)C) as an indole terpenoid ester [(2E,4E,6E,8E,10E,12E,14E,16E,18E)24-hydroxy-2,6,10,14,19 pentamethyl tetrecosa-2,4,6,8,10,12,14,16,18 nonenyl-2(hydroxy methyl)-1H-indole-3-carboxylate] and is named as rhodestrin. Rhodestrin at 50 nM: gave positive test in auxin bioassay and initiated more profuse and early rooting in tissue-cultured plants than other auxins at 5 microM.
authors.affiliation: Department of Plant Sciences, School of Life Sciences, University of Hyderabad, P.O. Central University, Gachibowli, 500046 Hyderabad, India. r449@sify.com
authors.forename: M R
authors.initials: MR
authors.lastname: Sunayana
authors.forename: Ch
authors.initials: Ch
authors.lastname: Sasikala
authors.forename: Ch V
authors.initials: ChV
authors.lastname: Ramana
mesh_terms: D001711:Biotransformation; D018548:Cotyledon / Q000187:drug effects / Q000254:growth & development; D017077:Culture Media, Conditioned / Q000737:chemistry; D004952:Esters / Q000737:chemistry; D007211:Indoles / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010777:Photochemistry; D010937:Plant Growth Regulators / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development; D018520:Plant Shoots / Q000187:drug effects / Q000254:growth & development; D012242:Rhodobacter sphaeroides / Q000378:metabolism*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D062367:ortho-Aminobenzoates / Q000378:metabolism
chemical_list: D017077:Culture Media, Conditioned; D004952:Esters; D007211:Indoles; D010937:Plant Growth Regulators; D013729:Terpenes; D014315:Triterpenes; D062367:ortho-Aminobenzoates; C509304:rhodestrin; C031385:anthranilic acid