A new poroid wood-inhabiting fungal species,
Ceriporiopsis kunmingensis
sp. nov., is proposed based on morphological and molecular characters. The species is characterized by resupinate basidiocarps ...with pale cinnamon-buff to ochreous color when dry; generative hyphae unbranched and subparallel along the tubes; presence of hyphal ends; allantoid basidiospores, 4.5–5 × 1.5–2 μm. The internal transcribed spacer (ITS) and large subunit (LSU) regions of nuclear ribosomal RNA gene sequences of the studied samples were generated, and phylogenetic analyses were performed with maximum likelihood, maximum parsimony, and Bayesian inference methods. The phylogenetic analysis based on molecular data of ITS + nLSU sequences showed that
C. kunmingensis
belonged to the phlebioid clade, formed a monophyletic lineage with a strong support (100% BS, 100% BP, 1.00 BPP), and was closely related to
Phlebia aurea
, and then grouped with
P. livida
and
P. subserialis
. Both morphological and molecular characters confirmed the placement of the new species in
Ceriporiopsis
.
Four yeast isolates were obtained from rotting wood and galleries of passalid beetles collected in different sites of the Brazilian Amazonian Rainforest in Brazil. This yeast produces unconjugated ...allantoid asci each with a single elongated ascospore with curved ends. Sequence analysis of the internal transcribed spacer‐5.8 S region and the D1/D2 domains of the large subunit ribosomal RNA (rRNA) gene showed that the isolates represent a novel species of the genus Spathaspora. The novel species is phylogenetically related to a subclade containing Spathaspora arborariae and Spathaspora suhii. Phylogenomic analysis based on 1884 single‐copy orthologs for a set of Spathaspora species whose whole genome sequences are available confirmed that the novel species represented by strain UFMG‐CM‐Y285 is phylogenetically close to Sp. arborariae. The name Spathaspora marinasilvae sp. nov. is proposed to accommodate the novel species. The holotype of Sp. marinasilvae is CBS 13467 T (MycoBank 852799). The novel species was able to accumulate xylitol and produce ethanol from
d‐xylose, a trait of biotechnological interest common to several species of the genus Spathaspora.
The novel species Spathaspora marinasilvae is described based on isolates obtained from rotting wood and galleries of passalid beetles collected in sites of the Brazilian Amazonian Rainforest in Brazil. The novel species was able to accumulate xylitol and produce ethanol from
d‐xylose.
Take‐away
The novel species Spathaspora marinasilvae was isolated, identified, and formally described.
The genome sequence of Spathaspora marinasilvae is reported.
Spathaspora marinasilvae assimilated and fermented
d‐xylose with ethanol production and accumulation of xylitol.
Favolus is a natural genus that is closely related to Polyporus. A taxonomic study of Favolus was carried out based on morphological characteristics and phylogenetic analysis of the internal ...transcribed spacer (ITS) region (ITS1-5.8S-ITS2 = ITS) and 18S and 28S genes of the nuc rDNA, translation elongation factor 1-α gene (TEF1-α), the mt 16S rDNA gene (mt rrnS), β-tubulin gene (TBB1), and the RNA polymerase II largest subunit (RPB1) and second largest subunit (RPB2) genes. Fourteen specimens collected from subtropical to tropical regions in China were shown to be different from existing Favolus species. They are described and illustrated here as four new species, namely, Favolus niveus, F. septatus, F. pseudoemerici, and F. subtropicus.
Two new species, Hyphoderma fissuratum and H. mopanshanense spp. nov., are proposed based on morphological and molecular evidences. Hyphoderma fissuratum is characterized by resupinate basidiomata ...with cracking hymenial surface, a monomitic hyphal system with generative hyphae bearing clamp connections, IKI–, CB–, and cylindrical, colorless, thin-walled, smooth basidiospores measuring (8.5–10.3 × 3–4 µm). Hyphoderma mopanshanense is characterized by an annual growth habit, slight gray to cream hymenial surface, and fusiform, thick-walled cystidia apically encrusted with crystal. Sequences of ITS and LSU nrRNA gene regions of the studied samples were generated, and phylogenetic analyses were performed with maximum likelihood, maximum parsimony and Bayesian inference methods. These phylogenetic analyses based on molecular data of ITS and nLSU sequences showed that two Hyphoderma new species formed a well supported monophyletic lineage distinct from other related species and then H. fissuratum grouped with H. medioburiense and H. roseocremeum. Hyphoderma mopanshanense grouped with H. setigerum.
Two new species of
viz.
and
, are described from southwest China. Phylogeny based on ITS + nLSU dataset demonstrates that samples of the two species form two independent lineages and are different in ...morphology from the existing species of
.
is characterized by resupinate, coriaceous basidiomata with cream to pale yellow hymenophore, a dimitic hyphal structure with generative hyphae bearing simple septa, the absence of cystidia, and amyloid, broadly ellipsoid basidiospores measuring 4.7-7 × 3.5-4.7 μm.
is characterized by resupinate, coriaceous basidiomata with cream to straw yellow hymenophore, a dimitic hyphal structure with generative hyphae bearing simple septa, numerous cystidia embedded or projecting from hymenium, and inamyloid, ellipsoid basidiospores measuring 9-11 × 4.5-5.5 μm. The differences between the new species and morphologically similar and phylogenetically related species are discussed.
Four isolates of
species were recovered from rotting wood collected in two Brazilian Amazonian biomes. The isolates produced unconjugated allantoid asci with a single elongated ascospore with curved ...ends. Sequence analysis of the ITS-5.8S region and the D1/D2 domains of the large subunit rRNA gene showed that the isolates represent two different novel
species, phylogenetically related to
. Two isolates were obtained from rotting wood collected in two different sites of the Amazonian forest in the state of Pará. The name
sp. nov. is proposed to accommodate these isolates. The holotype of
sp. nov. is CBS 16119
(MycoBank MB846672). The other two isolates were obtained from a region of transition between the Amazonian forest and the Cerrado ecosystem in the state of Tocantins. The name
sp. nov. is proposed for this novel species. The holotype of
sp. nov. is CBS 14229
(MycoBank MB846697). Both species are able to convert d-xylose into ethanol and xylitol, a trait with biotechnological applications.
A new, white-rot, poroid, wood-inhabiting fungal genus, Rhomboidia, typified by R. wuliangshanensis, is proposed based on morphological and molecular evidence. Collected from subtropical Yunnan ...Province in southwest China, Rhomboidia is characterized by annual,
stipitate basidiomes with rhomboid pileus, a monomitic hyphal system with thick-walled generative hyphae bearing clamp connections, and broadly ellipsoid basidiospores with thin, hyaline, smooth walls. Phylogenetic analyses of ITS and LSU nuclear RNA gene regions showed that Rhomboidia
is in Steccherinaceae and formed as distinct, monophyletic lineage within a subclade that includes Nigroporus, Trullella, and Flabellophora .
Thirty two isolates of fluorescent Pseudomonas and sixteen rhizobia were isolated from the root nodules of mungbean (Vigna radiata) collected from the experimental fields of Karachi University. ...Pseudomonas and rhizobia were characterized for their plant growth promoting and biocontrol potential through the determination of in vitro activity against root rotting fungi viz., Macrophomina phaseolina, Fusarium solani, Fusarium oxysporum and Rhizoctonia solani and nematicidal activity against the second stage juveniles of Meloidogyne javanica. Pseudomonas isolates NAFP-19, NAFP-21, NAFP-22, NAFP-27, NAFP-31 and NAFP-32, and rhizobial isolates NFB-102, NFB-103, NFB-107 and NFB-109 inhibited the growth of all the test fungi and showed maximum nematicidal activity against second stage juveniles of M. javanica. Strains of Pseudomonas (NAFP-19, NAFP-31 and NAFP-32) and rhizobia (NFB-103, NFB-107 and NFB-109) used as a soil drench significantly reduced root rot disease under screen house condition and thereby enhanced plant growth and yield in mungbean. In field plot experiments, mixed or separate application of NAFP and rhizobia showed effective control of M. phaseolina and F. oxysporum with some protection from F. solani and R. solani.
•From root nodules of mungbean fluorescent Pseudomonas and rhizobia were isolated.•Pseudomonas and rhizobia were characterized for their plant growth promoting and biocontrol potential.•Most of the test isolates significantly reduced root rot disease and enhanced plant growth.•Separate or mixed application of Pseudomonas and rhizobia showed effective control of Macrophomina phaseolina and Fusarium oxysporum.
A new poroid, white-rot, wood-inhabiting fungal species, Perenniporia mopanshanensis, is proposed based on morphological and molecular characters. This species from Yunnan Province, China, is ...characterized by resupinate basidiomes with a cream to buff to straw pore surface, dimitic
hyphal system with strongly dextrinoid, unbranched, interwoven skeletal hyphae, and ellipsoid, non-truncate basidiospores (5.5-6.5 × 4-5 μm) with hyaline, distinctly thick, smooth, strongly dextrinoid walls. Phylogenetic analyses of ITS+nLSU sequences showed that P.
mopanshanensis is a distinct taxon in the Perenniporia sensu stricto clade and is sister to P. bannaensis.
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