Biotechnological potential of salt tolerant and xerophilic species of Aspergillus DOI Creative Commons
István Pócsi, Jan Dijksterhuis, Jos Houbraken

et al.

Applied Microbiology and Biotechnology, Journal Year: 2024, Volume and Issue: 108(1)

Published: Nov. 19, 2024

Abstract Xerophilic fungi occupy versatile environments owing to their rich arsenal helping them successfully adapt water constraints as a result of low relative humidity, high-osmolarity, and high-salinity conditions. The general term xerophilic relates organisms that tolerate and/or require reduced activity, while halophilic osmophilic are applied specialized groups high salt concentrations or increased osmotic pressure, respectively. Species belonging the family Aspergillaceae , especially those classified in Aspergillus subgenus (sections Restricti ) Polypaecilum particularly enriched group salt-tolerant filamentous fungi. They produce an unprecedently wide spectrum tolerant enzymes including proteases, peptidases, glutaminases, γ-glutamyl transpeptidases, various glycosidases such cellulose-decomposing starch-degrading hydrolases, lipases, tannases, oxidareductases. These extremophilic also represent huge untapped treasure chest yet-to-be-discovered, highly valuable, biologically active secondary metabolites. Furthermore, these indispensable agents decolorizing textile dyes, degrading xenobiotics removing excess ions high-salt environments. could play role fermentation processes at activity leading preparation daqu, meju, tea. Considering current future agricultural applications, Aspergilli may contribute biosolubilization phosphate soil amelioration stress crops. Transgenes from halophile find promising applications engineering drought-tolerant spoil feed food raise mycotoxin above permissible doses and, therefore, development novel preservation technologies against spp. is urgently needed. On other hand, some have been shown be biological control mites. Key points • Salt can found resources valuable metabolites Biotechnological expanding

Language: Английский

Two new species of Penicillium and a new genus in Xylariomycetidae from the forest dump-sites in Chiang Mai, Thailand DOI Creative Commons
Tanapol Thitla, Jutamart Monkai,

Weiqian Meng

et al.

MycoKeys, Journal Year: 2025, Volume and Issue: 116, P. 275 - 301

Published: April 29, 2025

Waste accumulation in forest regions can have a severe impact on the soil mycobiome. However, research fungi inhabiting disposal sites remains limited. Therefore, this study focused taxonomy and phylogeny of ascomycetes isolated from dump-sites Chiang Mai, Thailand. The fungal strains were identified using morphological characterisations multigene phylogenetic reconstruction. A new genus, Pseudoleptodontidium, typified by Ps.chiangmaiense sp. nov. (Amphisphaeriales genera incertae sedis, Xylariomycetidae), along with two species, Penicilliumchiangmaiense (series Janthinella, section Lanata-Divaricata) P.terrae Erubescentia, Exilicaulis) (Aspergillaceae, Eurotiales), are described detail compared closely-related species. Our discovery offers valuable insights into associated disturbances.

Language: Английский

Citations

0
Biocontrol mechanisms of Paecilomyces spp. for the management of fungal plant diseases: a review DOI
Xin‐Chi Shi, Yuxin Zhou, Jun‐Bo Yang

et al.

Pest Management Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Abstract Paecilomyces is a ubiquitous cosmopolitan fungus. Recent reports have demonstrated that strains are efficient biocontrol agents for the management of plant pathogens in variety crops and tissues. This review covers methods based on use spp. pathogenic fungi oomycetes. showed high efficacies control various hosts under greenhouse conditions fields, demonstrating their actual applicability. The were especially wilts damping‐offs. antifungal mechanisms, including production non‐volatile compounds, VOCs, hydrolytic enzymes, competition space nutrients, induction disease resistance. Application spores resulted higher compared to application cell‐free culture filtrate. Despite interesting properties , some can cause keratitis humans, synthesize hazardous mycotoxin patulin, be fruit juice spoilage. To date, only P. variotii extract ZhiNengCong has been commercialized agricultural purposes. Collectively, further research regarding toxicity storage necessary confirm potential commercialization strains. Studies key metabolites genes involved activity understand optimize this emerging agent. © 2025 Society Chemical Industry.

Language: Английский

Citations

0
Comparative Bioremediation of Tetradecane, Cyclohexanone and Cyclohexane by Filamentous Fungi from Polluted Habitats in Kazakhstan DOI Creative Commons
Mariam Gaid,

Wiebke Jentzsch,

Hannah Beermann

et al.

Journal of Fungi, Journal Year: 2024, Volume and Issue: 10(6), P. 436 - 436

Published: June 19, 2024

Studying the fates of oil components and their interactions with ecological systems is essential for developing comprehensive management strategies enhancing restoration following spill incidents. The potential expansion Kazakhstan’s role in global market necessitates existence land-specific studies that contribute to field bioremediation. In this study, a set experiments was designed assess growth biodegradation capacities eight fungal strains sourced from Kazakhstan soil when exposed hydrocarbon substrates which they were initially isolated. identified as Aspergillus sp. SBUG-M1743, Penicillium javanicum SBUG-M1744, SBUG-M1770, Trichoderma harzianum SBUG-M1750 Fusarium oxysporum SBUG-1746, SBUG-M1748, SBUG-M1768 SBUG-M1769 using internal transcribed spacer (ITS) region. Furthermore, microscopic macroscopic evaluations agreed sequence-based identification. SBUG-M1743 P. SBUG-M1744 displayed remarkable capabilities presence tetradecane up 9-fold biomass increase static cultures. T. exhibited poor growth, consequence its low efficiency degradation. Monocarboxylic acids main degradation products by SBUG-M1750, SBUG-M1770 indicating monoterminal pathway through β-oxidation, while additional detection dicarboxylic acid cultures indicative fungus’ ability undertake both diterminal pathways. F. SBUG-M1746 SBUG-M1748 cyclohexanone showed doubling degrade substrate almost completely shake also able cyclohexane excreted all possible metabolites pathway. Understanding these isolates different will help effective bioremediation tailored local conditions.

Language: Английский

Citations

2
Adpressins A–G: Oligophenalenone Dimers from Talaromyces adpressus DOI

Meijia Zheng,

Qin Li, Hong Liao

et al.

Journal of Natural Products, Journal Year: 2024, Volume and Issue: 87(8), P. 1921 - 1929

Published: July 21, 2024

Nine new oligophenalenone dimers, adpressins A–G (1–9), together with nine known compounds (10–18), were isolated from the fungus Talaromyces adpressus. Their chemical structures determined on basis of spectroscopic and mass spectral analyses. relative absolute configurations identified by 1H 13C NMR calculations followed DP4+ analyses, electronic circular dichroism (ECD) calculations, ECD spectra comparison related compounds. Compound 1 is first example a duclauxin derivative featuring an unusual 6/6/6/5/6/6/6 ring system, while 6 7 contained novel pyrrolidine ring. Compounds 5, 9, 18 exhibited moderate inhibition against LPS-induced B lymphocyte proliferation IC50 values ranging 1.6 to 8.6 μM. Additionally, 9 Con A-induced T 9.3 2.6 μM, respectively.

Language: Английский

Citations

2
Fungal Nomenclature at IMC10: Report of the Nomenclature Sessions DOI Creative Commons
Scott A. Redhead,

V. Demoulin,

David L. Hawksworth

et al.

IMA Fungus, Journal Year: 2014, Volume and Issue: 5(2), P. 449 - 462

Published: Dec. 1, 2014

Three Nomenclature Sessions were convened during the 10(th) International Mycological Congress (IMC10) in Bangkok on 3-8 August 2014. In addition a Questionnaire was given to all delegates. This Report reviews and summarizes views expressed responses Questionnaire. The issues covered related aspects of: registration, protected names, forgotten pleomorphic fungi, lichenized typification, diagnoses, governance. addition, reports received from working groups preparing lists of names be proposed for protection, controversial cases competing discussed. mandated ratify decisions Committee Fungi (NCF) appointment repositories registration new fungal names. After discussion decision NCF appoint three such bodies, Resolution that effect approved by Congress. also adopted asking opinions mycologists future directions nomenclature fungi taken into account formulating changes rules consideration at Botanical 2017.

Language: Английский

Citations

19
Three new species of Talaromyces sect. Talaromyces discovered in China DOI Creative Commons

Xin-Tong Ren,

Saifei Li,

Yongming Ruan

et al.

PeerJ, Journal Year: 2024, Volume and Issue: 12, P. e18253 - e18253

Published: Oct. 11, 2024

Background Talaromyces species play an important role in the nutrient cycle natural ecosystems, degradation of vegetal biomass industries and implications medicine. However, diversity this genus is still far from fully understood. Methods The polyphasic taxonomic approach integrating morphological comparisons molecular phylogenetic analyses based on BenA , CaM Rpb2 ITS sequences was used to propose three new species. Results Three sect. isolated soil are proposed, namely, T. disparis (ex-type AS3.26221), funiformis AS3.26220) jianfengicus AS3.26253). unique low growth rate, velvety texture, limited moderate sporulation, biverticillate, monoverticillate irregular penicilli bearing a portion abnormally large globose conidia, it has no close relatives phylogeny. Being member pinophilus complex, produces mycelial funicles Czapek yeast autolysate agar (CYA), 5% malt extract (MEA) (YES), sparse sporulation (Cz), CYA, MEA YES while abundant oatmeal (OA), appressed biverticillate pyriform conida with smooth finely rough walls. belongs verruculosus characterized by colony texture elm-green conidia en masse producing penicilli, verrucose Conclusion It now common practice establishing Aspergillus Penicillium characters sequences. proposal novelties article not only supported their distinctiveness, but also confirmed concatenated BenA-CaM-Rpb2 BenA-CaM -ITS, as well individual BenA, CaM, sequence matrices.

Language: Английский

Citations

1
Global patterns of species diversity and distribution in the biomedically and biotechnologically important fungal genusAspergillus DOI Creative Commons
Olivia Riedling, Kyle David, Antonis Rokas

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 3, 2024

fungi are key producers of pharmaceuticals, enzymes, and food products exhibit diverse lifestyles, ranging from saprophytes to opportunistic pathogens. To improve understanding

Language: Английский

Citations

1
Draft genome sequences of three xerophilic Aspergillus section Restricti species isolated from house dust in Japan DOI Open Access
Ryo Hagiuda, Dai Hirose

Microbiology Resource Announcements, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 16, 2024

We present the nuclear and complete mitochondrial genome sequences of

Language: Английский

Citations

1
Development of a whole-cell SELEX process to select species-specific aptamers against Aspergillus niger DOI Creative Commons
Valeria Ellena,

Alexandra Ioannou,

Claudia Kolm

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: July 30, 2024

Abstract Background Spores produced by the filamentous fungus Aspergillus niger are abundant in a variety of environments. The proliferation this indoor environments has been associated to health risks and its conidia can cause allergic reaction severe invasive disease animals humans. Therefore, detection monitoring Aspergillus is utmost importance prevent serious fungal infections contaminations. Among others, aptamers could serve as biosensors for specific spores. Results In study, whole-cell SELEX approach was optimized A. niger. Three whole-cells experiments were performed parallel with similar conditions. Quantification recovered ssDNA melting curve analyses applied monitor ongoing process. Next-generation sequencing on selected pools, allowing identification DNA which bind high affinity target cells. developed shown be species-specific, being able but not tubingensis or nidulans. binding two (AN01-R9-006 AN02-R9-185) measured 58.97 nM 138.71 nM, respectively, range previously aptamers. Conclusions This study demonstrates that species-specific successfully via distinguish different species opens up new opportunities field diagnostics infections.

Language: Английский

Citations

0
Development of a whole-cell SELEX process to select species-specific aptamers against Aspergillus niger DOI Creative Commons
Valeria Ellena,

Alexandra Ioannou,

Claudia Kolm

et al.

Fungal Biology and Biotechnology, Journal Year: 2024, Volume and Issue: 11(1)

Published: Nov. 5, 2024

Abstract Background Spores produced by the filamentous fungus Aspergillus niger are abundant in a variety of environments. The proliferation this indoor environments has been associated to health risks and its conidia can cause allergic reaction severe invasive disease animals humans. Therefore, detection monitoring is utmost importance prevent serious fungal infections contaminations. Among others, aptamers could serve as biosensors for specific spores. Results In study, DNA A. were developed optimizing whole-cell SELEX approach. Three whole-cells experiments performed parallel with similar conditions. Quantification recovered ssDNA melting curve analyses applied monitor ongoing process. Next-generation sequencing was on selected pools, allowing identification which bind high affinity target cells. shown be species-specific, being able but not tubingensis or nidulans . binding two (AN01-R9-006 AN02-R9-185) measured 58.97 nM 138.71 nM, respectively, range previously aptamers. Conclusions This study demonstrates that species-specific successfully via distinguish different species opens up new opportunities field diagnostics infections.

Language: Английский

Citations

0