Fungal Planet description sheets: 1614–1696

Fungal Systematics and Evolution, Journal Year: 2024, Volume and Issue: 13(1), P. 183 - 440

Published: June 30, 2024

Novel species of fungi described in this study include those from various countries as follows:

Language: Английский

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Antifungal Activity and Biocontrol Mechanism of Fusicolla violacea J-1 against Soft Rot in Kiwifruit Caused by Alternaria alternata

Journal of Fungi, Journal Year: 2021, Volume and Issue: 7(11), P. 937 - 937

Published: Nov. 4, 2021

Alternaria alternata is the main pathogenic species of various crops, including kiwifruit (Actinidia cinensis). In this study, an antagonistic fungus, J-1, with high antifungal activity against A. was isolated from cinensis "Hongyang." The strain J-1 identified as Fusicolla violacea via morphological identification and DNA sequencing. This study aimed to evaluate potential mechanism alternata. exhibited alternata, inhibition rate 66.1% in vitro. Aseptic filtrate (AF) produced by could suppress mycelial growth conidia germination at rates 66.8% 80%, respectively, well spread rot fresh kiwifruit. We observed that many clusters spherical protrusions appeared tips after treatment 200 mL L-1 AF J-1. Scanning electron microscopy analysis results showed structures were bent and/or malformed surfaces rough protuberant. Variations temperature, pH, storage time had little effect on AF. Moreover, damage integrity cell membranes cause intracellular content leakage. Meanwhile, chitinase β-1,3-glucanase enzyme activities increased significantly, indicating function wall seriously injured. Eleven antimicrobial metabolites gas chromatography-mass spectrometry (GC-MS). J-I its broad-spectrum Diaporthe eres, Epicoccum sorghinum, Fusarium graminearum, Phomopsis sp., Botryosphaeria dothidea, ranging 34.4% 75.1% 42.7% 75.2%, respectively. a biocontrol agent other fungal phytopathogens.

Language: Английский

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Lifestyle Transitions in Fusarioid Fungi are Frequent and Lack Clear Genomic Signatures

Molecular Biology and Evolution, Journal Year: 2022, Volume and Issue: 39(4)

Published: April 1, 2022

The fungal genus Fusarium (Ascomycota) includes well-known plant pathogens that are implicated in diseases worldwide, and many of which have been genome sequenced. also encompasses other diverse lifestyles, including species found ubiquitously as asymptomatic-plant inhabitants (endophytes). Here, we produced structurally annotated assemblies for five endophytic strains, the first whole-genome data chuoi. Phylogenomic reconstruction closely related genera revealed multiple frequent lifestyle transitions, major exception being a monophyletic clade mutualist insect symbionts. Differential codon usage bias increased optimisation separated sensu stricto from allied genera. We performed computational prediction candidate secreted effector proteins (CSEPs) carbohydrate-active enzymes (CAZymes)-both likely to be involved host-fungal interaction-and sought evidence their frequencies could predict lifestyle. However, phylogenetic distance described gene variance better than did. There was no significant difference CSEP, CAZyme, or repertoires between phytopathogenic although did find some copy number variation may contributing pathogenicity. Large numbers accessory CSEPs (i.e., present more one taxon but not all) comparatively low strain-specific suggested there is limited specialisation among associated species. half core genes under positive selection identified specific CAZymes predicted positively selected on certain lineages. Our results depict fusarioid fungi prolific generalists highlight difficulty predicting pathogenic potential group.

Language: Английский

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Plant-growth promoting activity of three fungal endophytes isolated from plants living in dehesas and their effect on Lolium multiflorum

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: May 5, 2023

Abstract Endophytic fungi have been demonstrated to produce bioactive secondary metabolites, some of which promote plant growth. Three endophytic isolated from healthy plants living in dehesas Extremadura (Spain) were identified and evaluated for their ability phytohormone-like substances, antioxidant activity, total polyphenol content, phosphate solubilization siderophore ammonia production. The filtrates extracts produced by the three endophytes applied Lolium multiflorum seeds seedlings under both vitro greenhouse conditions, analyse influence on growth traits such as germination, vigour index, chlorophyll data, number length leaves roots, dry weight. All endophytes, Fusarium avenaceum , Sarocladium terricola Xylariaceae sp., increased germination L. more than 70%. Shoot root length, weight roots positively affected application fungal and/or extracts, compared with controls. tentative HPLC–MS identification gibberellin A2 zeatin, or acetyl eugenol, may partially explain mechanisms promotion after extracts.

Language: Английский

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Soil substrate source drives the microbes involved in the degradation of gelatin used as a biostimulant

Applied Soil Ecology, Journal Year: 2023, Volume and Issue: 189, P. 104906 - 104906

Published: April 14, 2023

Plant biostimulants improve crop yield and quality by stimulating plant nutrition processes enhancing nutrient uptake efficiency, likely reflecting indirect effects mediated beneficial soil microbes. Gelatin is an emerging biostimulant. Culture-dependent studies have identified several species of gelatin-degrading microbes, but the effect gelatin on microbial communities in absence microbiome has not been investigated. The objectives this work were to evaluate changes community induced granulated amendments different soils substrates using high-throughput sequencing identify gelatin-hydrolyzing microbes for further application. Sandy soil, potting paper plugs, black peat pH-neutralized amended with incubated at room temperature. After 7 15 days, samples collected, DNA was extracted, bacterial fungal assessed 16S rRNA gene internal transcribed spacer (ITS) region, respectively. In parallel, isolated culture medium. Regression analysis shifts demonstrated that positively impacted amendment varied among substrates, whereas few variations occurred between timepoints. genera Penicillium, Mortierella, Fusarium Trichoderma Burkholderia, Pseudomonas Rhodanobacter increased relative abundance response amendment. These are efficient enzyme producers potential candidates formulating consortia can be applied tandem enhance its biostimulant activity.

Language: Английский

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