title: Pichia insulana sp. nov., a novel cactophilic yeast from the Caribbean.
abstract: A novel species of ascomycetous yeast, Pichia insulana sp. nov., is described from necrotic tissue of columnar cacti on Caribbean islands. P. insulana is closely related to and phenotypically very similar to Pichia cactophila and Pichia pseudocactophila. There are few distinctions between these taxa besides spore type, host preference and locality. Sporogenous strains of P. insulana that produce asci with four hat-shaped spores have been found only on Curaçao, whereas there was no evidence of sporogenous P. cactophila from that island. In addition, sequences of the D1/D2 fragment of the large-subunit rDNA from 12 Curaçao strains showed consistent differences from the sequences of the type strains of P. cactophila and P. pseudocactophila. The type strain of P. insulana is TSU00-106.5(T) (=CBS 11169(T) =UCD-FST 09-160(T)).
authors: Department of Biology, Tennessee State University, 3500 John Merritt Blvd, Nashville, TN 37209, USA.
authors: Philip F
authors: PF
authors: Ganter
authors: Dipartimento di Biologia Applicata, Sez. Microbiologia, Borgo 20 Giugno 74, I-06121 Perugia, Italy.
authors: Gianluigi
authors: G
authors: Cardinali
authors: Department of Food Science and Technology, University of California Davis, One Shields Ave, Davis, CA 95616, USA.
authors: Kyria
authors: K
authors: Boundy-Mills
mesh_terms: D001482:Base Composition; D029421:Cactaceae / Q000382:microbiology*; D017691:Caribbean Region; D004275:DNA, Ribosomal / Q000032:analysis / Q000235:genetics; D005838:Genotype; D008969:Molecular Sequence Data; D010641:Phenotype; D010802:Phylogeny; D010843:Pichia / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D010935:Plant Diseases / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D013045:Species Specificity; D013172:Spores, Fungal / Q000502:physiology
chemical_list: D004275:DNA, Ribosomal