Two New Species in the Family Cunninghamellaceae from China

Abstract

The species within the family Cunninghamellaceae are widely distributed and produce important metabolites. Morphological studies along with a molecular phylogeny based on the internal transcribed spacer (ITS) and large subunit (LSU) of ribosomal DNA revealed two new species in this family from soils in China, that is, Absidia ovalispora sp. nov. and Cunninghamella globospora sp. nov. The former is phylogenetically closely related to Absidia koreana, but morphologically differs in sporangiospores, sporangia, sporangiophores, columellae, collars, and rhizoids. The latter is phylogenetically closely related to Cunninghamella intermedia, but morphologically differs in sporangiola and colonies. They were described and illustrated.

The Gene Rearrangement, Loss, Transfer, and Deep Intronic Variation in Mitochondrial Genomes of Conidiobolus

“…Traditionally, the ITS, LSU rDNA sequences, and morphological characteristics were widely used in species identification and evolution ( Zheng et al, 2007 ; Zhao et al, 2021 ; Zong et al, 2021 ). In addition, single- or multi-gene loci, SSRs, and single-nucleotide polymorphisms (SNPs) have been widely used to study the evolution and polymorphism of fungi during the last two decades ( Tsykun et al, 2017 ).…”

Three New Species of Absidia (Mucoromycota) from China Based on Phylogeny, Morphology and Physiology

“…Soil samples were collected from Yunnan and Xinjiang in China in September 2021. Then, strains were isolated according to the method in previous studies [3,4]. In brief, soil (1 g) was suspended in sterile water (100 mL), and then the suspension (100 uL) was spread on plates with potato dextrose agar (PDA: 200 g potato, 20 g glucose, 20 g agar and 1000 mL distilled water) supplied with streptomycin sulfate (100 mg/mL) and ampicillin (100 mg/mL).…”

“…[1,2]. Members of Absidia are widely distributed in soils, plant residues, herbivorous dung, decaying substrates and air [2][3][4][5][6][7][8][9][10]. In particular, some species are found in the mycangia of ambrosia beetles (A. psychrophilia) [11,12], as well as the body surface of bats (A. stercoraria: https://bccm.belspo.be/content/remarkablefungal-biodiversity-northern-belgium-bats, accessed on 27 December 2021).…”

“…Sporangiophores form on the middle part of the stolons, while rhizoids form at both ends. Sporangia are multi-spored, pyriform to globose, deliquescent-walled and apophysate [2][3][4]19]. Columellae are conical, suglobose to globose or applanate, commonly with one to several projections [2,4,20,21].…”

“…Currently, 43 species are described in Absidia (Table 1, www.indexfungorum.org, accessed on 13 December 2021), with type strains originating from 17 countries, including Australia, Brazil, Canada, China, Cuba, the Czech Republic, Egypt, France, Holland, India, Mexico, Pakistan, South Korea, Switzerland, Tanzania, Thailand and the USA. Until now, 14 species have been recorded in China [3,4,26], and more potential novel species are being illustrated [27]. In this paper, three new species, A. frigida, A. gemella and A. longissima, are described from soil in China according to phylogenetic, morphological and physiological evidence.…”