sp. nov., a xerophilic species isolated from honey in Japan.

Int J Syst Evol Microbiol

School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi, Chiba 274-8555, Japan.

Published: January 2024

Five isolates of a xerophilic species were obtained from honey in Japan. Molecular phylogenetic analysis based on a combined dataset for four regions (rRNA internal transcribed spacer, β-tubulin, calmodulin and RNA polymerase II second largest subunit) revealed that the strains formed an independent clade in section , which is sister to , and . The strains and their relatives have different growth on creatine agar, yeast extract sucrose agar and dichloran 18 % glycerol agar, different branching patterns (mostly monoverticillate or biverticillate, less frequently divaricate or terverticillate), and different sizes and surface structures of conidia. Xerotolerance tests were also conducted using media adjusted to five different sucrose concentrations (0, 20, 40, 60 and 80 %). The colony diameters of the strains were larger than those of , and at each sucrose concentration. Altogether, the obtained morphological, molecular and physiological data allowed the proposal of sp. nov. for this novel species, with NBRC 116048 as the type strain.

Download full-text PDF

Source
http://dx.doi.org/10.1099/ijsem.0.006212DOI Listing

Publication Analysis

Top Keywords

xerophilic species
8
honey japan
8
nov xerophilic
4
species isolated
4
isolated honey
4
japan isolates
4
isolates xerophilic
4
species honey
4
japan molecular
4
molecular phylogenetic
4

Similar Publications

Draft genome sequences of three xerophilic section species isolated from house dust in Japan.

Microbiol Resour Announc

January 2025

School of Pharmacy, Nihon University, Funabashi, Chiba, Japan.

We present the nuclear and complete mitochondrial genome sequences of NBRC 116038, NBRC 116037, and NBRC 115547, all isolated from house dust in Japan. These sequence data are crucial for elucidating the evolutionary characteristics of section , a unique taxon comprising exclusively xerophilic species.

View Article and Find Full Text PDF

Re-identification of Strains from Section and Description of Three Unrecorded Species from Korea.

Mycobiology

September 2024

Korean Agricultural Culture Collection, Agricultural Microbiology Division, National Institute of Agricultural Sciences, RDA, Wanju, Republic of Korea.

The section includes xerophilic fungi that are economically significant and broadly distributed in natural settings as well as human habitats and are recognized for their sustenance on substrates with low water activity. Accurate identification of fungal species is essential for any reliable advances in mycological research. In this study, 108 strains from the section , originating from Korea and conserved at the Korean Agricultural Culture Collection, were subjected to re-identification using a combined dataset that included partial sequences of β-tubulin (), Calmodulin (), and RNA polymerase II second largest subunit () genes, along with their morphological characteristics.

View Article and Find Full Text PDF

The nests of mound-building ants are unexplored reservoirs of fungal diversity. A previous assessment of this diversity in the nests of suggested that water availability may be a determinant of the composition of this mycota. To investigate this question, we recovered 3594 isolates of filamentous Ascomycota from the nests of and adjacent, non-nest sites, employing Dichloran Rose Bengal agar (DRBA), Dichloran Rose Bengal agar containing glycerol (DRBAG), and malt extract agar containing sucrose (MEA20S).

View Article and Find Full Text PDF

Xerophilic fungi occupy versatile environments owing to their rich arsenal helping them successfully adapt to water constraints as a result of low relative humidity, high-osmolarity, and high-salinity conditions. The general term xerophilic fungi relates to organisms that tolerate and/or require reduced water activity, while halophilic and osmophilic are applied to specialized groups that require high salt concentrations or increased osmotic pressure, respectively. Species belonging to the family Aspergillaceae, and especially those classified in Aspergillus subgenus Aspergillus (sections Restricti and Aspergillus) and Polypaecilum, are particularly enriched in the group of osmophilic and salt-tolerant filamentous fungi.

View Article and Find Full Text PDF

Date palm (Phoenix dactylifera L.) is an important crop in arid regions that is well-adapted to desert ecosystems. To understand the remarkable ability to grow and yield in water-limited environments, experiments with water-withholding for up to four weeks were conducted.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!