Journal
FRONTIERS IN MICROBIOLOGY
Volume 12, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fmicb.2021.627744
Keywords
3 new taxa; taxonomy; phylogeny; biopesticide; metarhizium; entomopathogenic fungi
Categories
Funding
- National Natural Science Foundation of China [31870528]
- Natural Science Foundation of Heilongjiang Province [QC2015033]
- Key Laboratory of Salinealkali Vegetation Ecology Restoration, Ministry of Education (Northeast Forestry University) [20200522-4]
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A novel genus Parametarhizium and two new entomopathogenic species were introduced based on their morphological characteristics and a multigene phylogenetic analysis. Parametarhizium can be distinguished morphologically from related genera and both species exhibited anti-insect activities against three farmland pests.
A novel genus Parametarhizium with two new entomopathogenic species, Parametarhizium changbaiense and Parametarhizium hingganense, was introduced based on their morphological characteristics and a multigene phylogenetic analysis, which were isolated from the forest litters collected in Northeast China. To infer their phylogenetic relationships, a six-gene dataset consisting of DNA fragments of [nuclear small subunit rDNA (SSU) + LSU + TUB + TEF + RPB1 + RPB2] was used for phylogenetic analysis, including 105 related fungi. The new genus Parametarhizium formed a monophyletic clade basal to Metarhizium and its related genera (formerly Metarhizium sensu lato). Parametarhizium can be morphologically distinguished from related genera by the combination of the following characteristics: formation of white to yellow colonies on different media, candelabrum-like arrangement of cylindrical or obpyriform phialides, and small subglobose to ellipsoidal conidia. Both P. hingganense and P. changbaiense exhibited anti-insect activities against three farmland pests Monolepta hieroglyphica, Callosobruchus chinensis, and Rhopalosiphum maidis. This is the first report of entomopathogenic fungi exhibiting the anti-insect activity against Mo. hieroglyphica.
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