Variabilities of two Drechslerella dactyloides isolates in Korea and high predacity against Bursaphelenchus xylophilus

Curr Microbiol. 2011 Feb;62(2):472-8. doi: 10.1007/s00284-010-9731-1. Epub 2010 Aug 18.

Abstract

Drechslerella dactyloides generates elongate ellipsoid conidia and three-celled rings. Recently, Drechslerella dactyloides CNU 091025 and CNU 091026 were isolated in Korea, which generated elongate ellipsoid, Y-shaped and reaphook-shaped conidia, three-celled rings and fishhook-shaped traps. Therefore, molecular phylogenetic analysis, morphological variability, and nematode capturing ability were tested in this study. CNU 091025 generated two-celled or three-celled Y-shaped conidia, reaphook-shaped conidia, and elongate ellipsoid conidia, 17.2, 40.9, and 41.9%, respectively. Some fishhook-shaped rings connecting together formed two-dimensional web. Both fungi showed high trap-forming and nematode-capturing ability; especially CNU 091026 captured 100% Bursaphelenchus xylophilus within 24 h after inoculation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Ascomycota / classification*
  • Ascomycota / genetics
  • Ascomycota / isolation & purification
  • Ascomycota / physiology*
  • Cluster Analysis
  • DNA, Fungal / chemistry
  • DNA, Fungal / genetics
  • DNA, Ribosomal / chemistry
  • DNA, Ribosomal / genetics
  • DNA, Ribosomal Spacer / chemistry
  • DNA, Ribosomal Spacer / genetics
  • Genes, rRNA
  • Microscopy
  • Molecular Sequence Data
  • Phylogeny
  • RNA, Fungal / genetics
  • RNA, Ribosomal, 28S / genetics
  • Republic of Korea
  • Sequence Analysis, DNA
  • Spores, Fungal / cytology
  • Tylenchida / microbiology*

Substances

  • DNA, Fungal
  • DNA, Ribosomal
  • DNA, Ribosomal Spacer
  • RNA, Fungal
  • RNA, Ribosomal, 28S

Associated data

  • GENBANK/GU130298
  • GENBANK/GU130299
  • GENBANK/GU130300
  • GENBANK/GU130301