Variabilities of two Drechslerella dactyloides isolates in Korea and high predacity against Bursaphelenchus xylophilus.
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.
Wang
Zhen
Z
Department of Food Science and Technology, College of Agriculture and Biotechnology, Chungnam National University, Daejeon, 305-764, South Korea.
Wang
Chun-Yan
CY
Gu
Li-Juan
LJ
Sun
Bai-Shen
BS
Zhang
Dong-Liang
DL
Liu
Lei
L
Lee
Mi-Ra
MR
Wang
Chun-Ling
CL
Li
Zheng
Z
Mo
Eun-Kyung
EK
Sung
Chang-Keun
CK
D000818:Animals; D001203:Ascomycota / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology*; D016000:Cluster Analysis; D004271:DNA, Fungal / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000737:chemistry / Q000235:genetics; D020459:Genes, rRNA; D008853:Microscopy; D008969:Molecular Sequence Data; D010802:Phylogeny; D012331:RNA, Fungal / Q000235:genetics; D012339:RNA, Ribosomal, 28S / Q000235:genetics; D056910:Republic of Korea; D017422:Sequence Analysis, DNA; D013172:Spores, Fungal / Q000166:cytology; D017187:Tylenchida / Q000382:microbiology*
D004271:DNA, Fungal; D004275:DNA, Ribosomal; D021903:DNA, Ribosomal Spacer; D012331:RNA, Fungal; D012339:RNA, Ribosomal, 28S