98%
921
2 minutes
20
is one of the most aggressive fungal pathogens of species involved in the decline of Mediterranean oak forests. In this study, three strains of associated with holm () and cork () oak trees exhibiting dieback symptoms and cankers in Algeria were selected to investigate the production of secondary metabolites. Metabolomic analyses revealed the production of several known compounds, such as sphaeropsidins, diplopyrones and diplofuranones. Moreover, the comparative investigation of secondary metabolites produced by the analyzed strains with different degrees of virulence revealed possible implications of these compounds in the fungal virulence. In particular, sphaeropsidins seem to be the main phytotoxic compounds of involved in the infections of species, with a possible synergistic influence of the less representative compounds in the fungal virulence.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10489718 | PMC |
http://dx.doi.org/10.3390/molecules28176302 | DOI Listing |
J Sep Sci
September 2025
Programa De Pós-Graduação em Química, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brazil.
Secondary metabolites are important bioactive compounds for diet and medicine. This study optimizes the extraction of hydroethanolic herbal extracts using an EDGE (Energized Dispersive Guided Extraction) system, evaluates their antioxidant capacity, and analyzes correlations among antioxidant activity, total phenolic content, and individual compounds. A Doehlert matrix design was used to optimize extraction, having temperature and time as independent variables, and total phenolic content (mg GAE/g) as the response, quantified via the Folin-Ciocalteu method.
View Article and Find Full Text PDFCurr Opin Insect Sci
September 2025
Department of Entomology, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA. Electronic address:
The association of plants with beneficial soil microbes, including arbuscular mycorrhizal fungi (AMF) and plant growth-promoting rhizobacteria (PGPR), can enhance plant growth and nutrient uptake while modifying plant traits including growth rate, architecture, nutritional quality, secondary metabolites, phytohormones and volatile organic compounds (VOCs), necessary for interactions with insect pests and their natural enemies. Microbe-induced effects on insect herbivores and their natural enemies can be positive, neutral, or negative and are context dependent, creating the need for continued synthesis of published research to identify emerging patterns, recognize limitations, and guide future research. This perspective highlights three key pathways through which beneficial soil microbes drive interactions among agricultural plants, insect pests, and their natural enemies through the lens of applied research: (1) alterations in plant growth rate, architecture, and nutritional quality; (2) modifications of plant secondary metabolites and phytohormones; and (3) modifications in the emissions of volatile organic compounds.
View Article and Find Full Text PDFAppl Biochem Biotechnol
September 2025
Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, 51452, Qassim, Saudi Arabia.
Viruses are minuscule entities that cannot survive independently without a Living host. Pathogenic viruses pose a significant threat to global health, resulting annually in the deaths of thousands of people. Recent studies indicate that medicinal plants may serve as an effective source of sustainable natural antiviral agents.
View Article and Find Full Text PDFNaturwissenschaften
September 2025
Colorado Water Center, Colorado State University, Fort Collins, CO, 80523, USA.
Drought stress is the most vulnerable abiotic factor affecting plant growth and yield. The use of silicic acid as seed priming treatment is emerging as an effective approach to regulate maize plants susceptibility to water stress. The study was formulated for investigating the effect of silicic acid seed priming treatment in modulating the oxidative defense and key physio-biochemical attributes of maize plants under drought stress conditions.
View Article and Find Full Text PDFPlant Biotechnol J
September 2025
State Key Laboratory for Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MARA, Key Laboratory of Green Plant Protection of Zhejiang Province, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
Plants balance resource energy allocation between growth and immunity to ensure survival and reproduction under limited availability. This study reveals that rice cultivars with elevated sucrose levels boost resistance to the fungal pathogen Magnaporthe oryzae by accumulating the phytoalexin sakuranetin, regulated by the transcription factor STOREKEEPER (OsSTK). OsSTK binds to the promoter region of OsNOMT (Naringenin-7-O-Methyltransferase) to drive sakuranetin biosynthesis.
View Article and Find Full Text PDF