title: Agromyces ulmi sp. nov., a xylanolytic bacterium isolated from Ulmus nigra in Spain.
abstract: Two xylan-degrading bacterial strains were isolated from a decayed Ulmus nigra tree in Spain. The isolates were Gram-positive, non-motile, aerobic and formed substrate mycelium which fragmented into irregular rods. 16S rRNA gene sequence analysis indicated that the isolates form a separate branch within the genus Agromyces phylogenetic cluster, with Agromyces mediolanus DSM 20152(T) being their closest relative (97.7 and 97.6 % sequence similarity). Catalase, nitrate reduction and urease tests differentiated these strains from A. mediolanus. Cell-wall peptidoglycan composition, major menaquinone, predominant fatty acids and phospholipid pattern were typical of the genus Agromyces. The DNA G+C content determined for the type strain XIL01(T) was 72 mol%. Based on the data presented, a novel species Agromyces ulmi sp. nov. is proposed. The type strain is XIL01(T) (=LMG 21954(T)=DSM 15747(T)).
authors.affiliation: Departamento de Microbiología y Genética, Edificio Departamental, Campus Miguel de Unamuno, Universidad de Salamanca, Spain.
authors.forename: Raúl
authors.initials: R
authors.lastname: Rivas
authors.affiliation: Departamento de Microbiología y Genética, Edificio Departamental, Campus Miguel de Unamuno, Universidad de Salamanca, Spain.
authors.forename: Martha E
authors.initials: ME
authors.lastname: Trujillo
authors.affiliation: Departamento de Microbiología y Genética, Edificio Departamental, Campus Miguel de Unamuno, Universidad de Salamanca, Spain.
authors.forename: Pedro F
authors.initials: PF
authors.lastname: Mateos
authors.affiliation: Departamento de Microbiología y Genética, Edificio Departamental, Campus Miguel de Unamuno, Universidad de Salamanca, Spain.
authors.forename: Eustoquio
authors.initials: E
authors.lastname: Martínez-Molina
authors.affiliation: Departamento de Microbiología y Genética, Edificio Departamental, Campus Miguel de Unamuno, Universidad de Salamanca, Spain.
authors.forename: Encarna
authors.initials: E
authors.lastname: Velázquez
mesh_terms: D000192:Actinomycetales / Q000145:classification* / Q000166:cytology / Q000302:isolation & purification* / Q000502:physiology; D000332:Aerobiosis; D015373:Bacterial Typing Techniques; D001482:Base Composition; D002374:Catalase / Q000032:analysis; D002473:Cell Wall / Q000737:chemistry; D004269:DNA, Bacterial / Q000737:chemistry / Q000302:isolation & purification; D004275:DNA, Ribosomal / Q000737:chemistry / Q000302:isolation & purification; D005227:Fatty Acids / Q000032:analysis / Q000302:isolation & purification; D020459:Genes, rRNA; D005840:Gentian Violet; D008969:Molecular Sequence Data; D009068:Movement; D050901:Nitrate Reductase; D009565:Nitrate Reductases / Q000032:analysis; D010457:Peptidoglycan / Q000737:chemistry / Q000302:isolation & purification; D010619:Phenazines; D010743:Phospholipids / Q000032:analysis / Q000302:isolation & purification; D010802:Phylogeny; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D013030:Spain; D034403:Ulmus / Q000382:microbiology*; D014510:Urease / Q000032:analysis; D024482:Vitamin K 2 / Q000032:analysis / Q000302:isolation & purification; D014990:Xylans / Q000378:metabolism*
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; C035863:Gram's stain; D010457:Peptidoglycan; D010619:Phenazines; D010743:Phospholipids; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D014990:Xylans; D024482:Vitamin K 2; D002374:Catalase; D009565:Nitrate Reductases; D050901:Nitrate Reductase; D014510:Urease; D005840:Gentian Violet