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54 results for “phytopathogens”
Data from: Insect hypovirulence-associated mycovirus confers entomopathogenic fungi with enhanced resistance against phytopathogens
<p>Mycoviruses can alter the biological characteristics of host fungi including decreasing or enhancing virulence or pathogenicity of phytopathogens and entomopathogenic fungi (EPF). As an extensively used EPF, <em>Beauveria bassiana</em> could not only directly control pests, but also improve plant resistance against plant disease through endophytic colonization. However, most studies on the mycoviruses found in <em>B. bassiana</em> have focused on the effects of the viruses on the virulence of host fungi toward insect pests, with relatively few reports on the effects to the host fungi with regard to plant disease resistance in hosts. The present study investigated the effects of the mycovirus <em>Beauveria bassiana</em> chrysovirus 2 (BbCV2) virus infection on host biological characteristics, additionally, we evaluated antagonistic activity of BbCV2 against phytopathogenic fungi (<em>Sclerotinia sclerotiorum</em> and <em>Botrytis cinerea</em>) <em>in vitro</em> and their associated diseases both in <em>in vitro</em> leaves and in pot experiments. Our results showed that the mycovirus, BbCV2, enhanced the growth rate, spore production, and biomass of host fungi <em>B. bassiana</em>. BbCV2 virus infection enhanced the capacity of host fungi and their metabolic products to inhibit phytopathogenic fungi <em>S. sclerotiorum</em> and <em>B. cinerea</em>. BbCV2 virus infection reduced the contents of the two pathogens in tomato plants significantly, and in turn enhanced the plant resistance induced by host fungi colonization against the diseases caused by the two pathogens.</p>
Linked collectors and determiners for: Collection Francaise de Bacteries Phytopathogenes.
Natural history specimen data linked to collectors and determiners held within, "Collection Francaise de Bacteries Phytopathogenes". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/bb2584cf-bfcb-4806-a873-ba15b005048f">https://bionomia.net/dataset/bb2584cf-bfcb-4806-a873-ba15b005048f</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/bb2584cf-bfcb-4806-a873-ba15b005048f">https://gbif.org/dataset/bb2584cf-bfcb-4806-a873-ba15b005048f</a>. Formatted as a Frictionless Data package.
Data from: Insect hypovirulence-associated mycovirus confers entomopathogenic fungi with enhanced resistance against phytopathogens
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Genomic and phenotypic signatures of bacteriophage coevolution with the phytopathogen Pseudomonas syringae
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Phages enhance both phytopathogen density control and rhizosphere microbiome suppressiveness
<p>Bacteriophages, viruses that specifically target plant pathogenic bacteria, have emerged as a promising alternative to traditional agrochemicals. However, it remains unclear how phages should be applied to achieve efficient pathogen biocontrol, and to what extent their efficacy is shaped by indirect interactions with the resident microbiota. Here we tested if the phage biocontrol efficacy of <em>Ralstonia solanacearum</em> phytopathogenic bacterium can be improved by increasing the phage cocktail application frequency, and if the phage efficacy is affected by pathogen-suppressing bacteria already present in the rhizosphere. We find that increasing phage application frequency improves <em>R. solanacearum</em> density control, leading to a clear reduction in bacterial wilt disease in both greenhouse and field experiments with tomatoes. The high phage application frequency also increased the diversity of resident rhizosphere microbiota and enriched several bacterial taxa that were associated with the reduction in pathogen densities. Interestingly, these taxa often belonged to <em>Actinobacteria</em> known for antibiotics production and soil suppressiveness. To test if they could have had secondary effects on <em>R. solanacearum </em>biocontrol, we isolated Actinobacteria from <em>Nocardia</em> and <em>Streptomyces</em> genera and tested their suppressiveness to the pathogen <em>in vitro</em> and <em>in planta</em>. We found that these taxa could clearly inhibit <em>R. solanacearum</em> growth and constrain bacterial wilt disease, especially when combined with the phage cocktail. Together, our findings unravel an undiscovered benefit of phage therapy, where phages trigger a second line of defense by the pathogen-suppressing bacteria that already exist in resident microbial communities.</p>
SI_IV_3_Reverse chemical ecology to study the defense of the plant host Sextonia rubra and the chemical mediators of its endophyte Fusarium falciforme against phytopathogen Trametes versicolor
<p>Ces travaux présentant les données supplémentaires générés lors de l'étude de la confrontation d'isolat identifiés comme des <em>Fusarium falciforme</em> contre<em> Trametes versicolor</em>.</p>
Phages enhance both phytopathogen density control and rhizosphere microbiome suppressiveness
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Data from: First report of Fusarium citri as an entomopathogenic fungus mediating plant resistance against insect pests and phytopathogens
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Fig. 5 in Phytotoxic meroterpenoids with herbicidal activities from the phytopathogenic fungus Pseudopestalotiopsis theae
Fig. 5. Phytotoxic effects of different metabolites on seed germination and seedling growth of S. viridis in Petri dishes of experiment: (a) control; (b) 1; (c) 2; (d) 3; (e) 4; (f) 8.
Fig. 2 in Anti-phytopathogen terpenoid glycosides from the root bark of Chytranthus macrobotrys and Radlkofera calodendron
Fig. 2. Structures of compounds 1–12 isolated from the root bark of C. macrobotrys and R. calodendron together with structures of 13–18 isolated from the fruits of B. unijugata and B. welwitschii. 1–4 are previously undescribed terpenoid glycosides.
Competition for iron drives phytopathogen control by natural rhizosphere microbiomes
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SPECIFIC RHIZOBACTERIA PROTECT WHEAT PLANTS FROM PHYTOPATHOGENIC FUNGI.
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Figure 1 from: Fadhilah QG, Santoso I, Maryanto AE, Abdullah S, Yasman Y (2021) Evaluation of the antifungal activity of marine actinomycetes isolates against the phytopathogenic fungi Colletotrichum siamense KA: A preliminary study for new antifungal compound discovery. Pharmacia 68(4): 837-843. https://doi.org/10.3897/pharmacia.68.e72817
Figure 1 Results of the antibiosis assay of SM14 isolate in PDA filtrate medium. A. control, B. 6 days, C. 9 days, D. 12 days.
Figure 3 from: Fadhilah QG, Santoso I, Maryanto AE, Abdullah S, Yasman Y (2021) Evaluation of the antifungal activity of marine actinomycetes isolates against the phytopathogenic fungi Colletotrichum siamense KA: A preliminary study for new antifungal compound discovery. Pharmacia 68(4): 837-843. https://doi.org/10.3897/pharmacia.68.e72817
Figure 3 Phylogenetic analysis of marine actinomycetes isolates. The neighbor-joining tree of the three marine actinomycetes isolates (SM11, SM14, and SM15) was based on the 16S rRNA gene sequences. Streptomyces albus subsp. albus DSM 40313T is represented as an outgroup. The bootstrap values, based on 1,000 replications, are shown at the nodes; only values above 50% are given. The scale bar indicates 0.0050 substitutions per nucleotide position.
Figure 5 from: Santoso I, Fadhilah QG, Safitri SD, Handayani S, Maryanto AE, Yasman Y (2022) Inhibition of the phytopathogenic fungi Curvularia lunata BM and Ganoderma sp. TB4 by antifungal compounds produced by Bacillus siamensis LDR grown on hanjeli (Coix lacryma-jobi L.) starch. Pharmacia 69(1): 203-210. https://doi.org/10.3897/pharmacia.69.e80180
Figure 5 The chromatogram profile of the crude extract of Bacillus siamensis LDR : A. C14 iturin A; B. C14 bacillomycin F; C. C15 bacillomycin F; D. C16 bacillomycin F; E. C12 surfactin; F. C13 surfactin.
Figure 4 from: Santoso I, Fadhilah QG, Safitri SD, Handayani S, Maryanto AE, Yasman Y (2022) Inhibition of the phytopathogenic fungi Curvularia lunata BM and Ganoderma sp. TB4 by antifungal compounds produced by Bacillus siamensis LDR grown on hanjeli (Coix lacryma-jobi L.) starch. Pharmacia 69(1): 203-210. https://doi.org/10.3897/pharmacia.69.e80180
Figure 4 Thin layer chromatography of crude extract Bacillus siamensis LDR : A. lipid moiety; B. protein moiety.
Figure 6 from: Santoso I, Fadhilah QG, Safitri SD, Handayani S, Maryanto AE, Yasman Y (2022) Inhibition of the phytopathogenic fungi Curvularia lunata BM and Ganoderma sp. TB4 by antifungal compounds produced by Bacillus siamensis LDR grown on hanjeli (Coix lacryma-jobi L.) starch. Pharmacia 69(1): 203-210. https://doi.org/10.3897/pharmacia.69.e80180
Figure 6 The results of mass spectrometry analysis: A. C14 iturin A (m/z 1043.5526); B. C14 iturin A (m/z 1044.5375); C. C14 bacillomycin F (m/z 1057.5688); D. C15 bacillomycin F (m/z 1071.5848); E. C16 bacillomycin F (m/z 1085.6011); F. C12 surfactin (m/z 994.6440); and G. C13 surfactin (m/z 1008.6606)
Figure 2 from: Santoso I, Fadhilah QG, Safitri SD, Handayani S, Maryanto AE, Yasman Y (2022) Inhibition of the phytopathogenic fungi Curvularia lunata BM and Ganoderma sp. TB4 by antifungal compounds produced by Bacillus siamensis LDR grown on hanjeli (Coix lacryma-jobi L.) starch. Pharmacia 69(1): 203-210. https://doi.org/10.3897/pharmacia.69.e80180
Figure 2 Growth inhibition of Ganoderma sp. TB4 on potato dextrose agar (PDA)-filtrate medium: A. control, B. 12 days, C. 14 days, D. 16 days.
Figure 3 from: Santoso I, Fadhilah QG, Safitri SD, Handayani S, Maryanto AE, Yasman Y (2022) Inhibition of the phytopathogenic fungi Curvularia lunata BM and Ganoderma sp. TB4 by antifungal compounds produced by Bacillus siamensis LDR grown on hanjeli (Coix lacryma-jobi L.) starch. Pharmacia 69(1): 203-210. https://doi.org/10.3897/pharmacia.69.e80180
Figure 3 Growth inhibition of Curvularia lunata BM: A. control, B. treatment; Ganoderma sp. TB4 : C. control; D. treatment caused by the crude extract of Bacillus siamensis LDR.
Figure 1 from: Santoso I, Fadhilah QG, Safitri SD, Handayani S, Maryanto AE, Yasman Y (2022) Inhibition of the phytopathogenic fungi Curvularia lunata BM and Ganoderma sp. TB4 by antifungal compounds produced by Bacillus siamensis LDR grown on hanjeli (Coix lacryma-jobi L.) starch. Pharmacia 69(1): 203-210. https://doi.org/10.3897/pharmacia.69.e80180
Figure 1 Growth inhibition of Curvularia lunata BM on potato dextrose agar (PDA)-filtrate medium: A. control, B. 12 days, C. 14 days, D. 16 days.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.