2022
DOI: 10.3390/jof8070671
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New Arthrobotrys Nematode-Trapping Species (Orbiliaceae) from Terrestrial Soils and Freshwater Sediments in China

Abstract: Arthrobotrys is the most complex genus of Orbiliaceae nematode-trapping fungi. Its members are widely distributed in various habitats worldwide due to their unique nematode-trapping survival strategies. During a survey of nematophagous fungi in Yunnan Province, China, twelve taxa were isolated from terrestrial soil and freshwater sediment habitats and were identified as six new species in Arthrobotrys based on evidence from morphological and multigene (ITS, TEF, and RPB2) phylogenetic analyses. These new speci… Show more

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Cited by 19 publications
(28 citation statements)
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“…In contrast, A. musiformis produces only one type of conidia (macroconidia). Similarly, A. eryuanensis produces branched conidiophores, while A. musiformis produces only unbranched conidiophores, in contrast [ 23 ].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…In contrast, A. musiformis produces only one type of conidia (macroconidia). Similarly, A. eryuanensis produces branched conidiophores, while A. musiformis produces only unbranched conidiophores, in contrast [ 23 ].…”
Section: Discussionmentioning
confidence: 99%
“…After aligning the obtained sequence of our isolate, a high similarity percentage was found with other isolates reported at the NCBI, particularly with Arthrobotrys sp. FZ-2020b strain ZB129 (GenBank code, MT612105.1) which has recently been reported as A. eryuanensis [ 23 ]. Such high similarity of A. eryuanensis with our isolate was determined after considering some phenotypic features, mainly in the difference of unbranched conidiophores and the presence of only macroconidia in A. musiformis , which was in contrast to A. eryuanensis that produces branched conidiophores and macro- and microconidia.…”
Section: Discussionmentioning
confidence: 99%
“…gov/ (accessed on 1 December 2022)) to determine the attribution of the new isolates. The ITS, TEF, and RPB2 sequences of all reliable taxa of the corresponding genus and partial taxa of the related genus were downloaded (Table 1) according to the BLASTn search results and relevant publications [12,13,31,32]. Three genes were aligned using the online program MAFFT v.7 (http://mafft.cbrc.jp/alignment/server/ (accessed on 3 December 2022)) [33], manually adjusted using BioEdit v7.2.3 [34], and then linked using MEGA6.0 [35].…”
Section: Phylogenetic Analysismentioning
confidence: 99%
“…Both new fungal isolates were placed in the Arthrobotrys (Orbiliaceae, Orbiliomycetes) genus according to their type of trapping structure [11][12][13] and the BLASTn search results of ITS, TEF, and RPB2 genes. Therefore, all Arthrobotrys species with valid sequence data (62 isolates representing 59 species) [32] and other related taxa in Orbiliomycetes (9 isolates representing 8 Dactylellina species and 5 isolates representing 5 Drechslerella species) were included in this phylogenetic analysis (Table 1). The final dataset contained 77 ITS, 51 TEF, and 54 RPB2 sequences.…”
Section: Phylogenetic Analysismentioning
confidence: 99%
“…Most nematode-trapping fungi belong to Orbiliaceae , which have been extensively studied due to their abundant species and sophisticated trapping devices ( Linford et al 1938 , Jaffee et al 1993 , Wolstrup et al 1996 , Jaffee et al 1998 , Morton et al 2003 , Liu et al 2009 , El-Borai et al 2011 , Kumar et al 2011 , Swe et al 2011 , Vilela et al 2012 ). Currently, 116 predatory species in Orbiliaceae have been reported ( Glockling and Dick 1994 , Li et al 2006 , Wu et al 2012 , Li et al 2013 , Liu et al 2014 , Zhang and Hyde 2014 , Quijada et al 2020 , Zhang et al 2020 , Zhang et al 2020b , Zhang et al 2022 ). They are classified into three genera according to their types of trapping structure: 1) Arthrobotrys (67 species), catching nematodes using adhesive networks; 2) Dactylellina (34 species), capturing nematodes by adhesive knobs, adhesive branches and non-constricting rings and 3) Drechslelrella (15 species), trapping nematodes with constricting rings ( Scholler et al 1999 , Li et al 2005 , Yang et al 2007 , Zhang and Hyde 2014 ).…”
Section: Introductionmentioning
confidence: 99%