ArticleBMC microbiology2021
Diversity and antibacterial activity of fungal endophytes from Eucalyptus exserta.
Article in BMC microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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30 citing papers in PubMed, 61 citations in OpenAlex.
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- Pathogenic Ralstonia solanacearum in Agriculture: A Review of Prevention and Control Strategies Based on Natural Products.Current microbiology · 2025Review
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- Novel secondary metabolite from a new species ofCurrent research in microbial sciences · 2025Article
- Antagonism ofFrontiers in microbiology · 2025Article
- Seasonal and Spatial Dynamics of Fungal Leaf Endophytes in Eucalyptus crebra (Narrow-Leaved Ironbark).Microbial ecology · 2024Article
- Endophytic Fungus UJ3-2 fromMolecules (Basel, Switzerland) · 2024Article
- Fungal endophytes of Taxus species and regulatory effect of two strains on taxol synthesis.BMC microbiology · 2024Article
- Current Advances in the Functional Diversity and Mechanisms Underlying Endophyte-Plant Interactions.Microorganisms · 2024Review
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- Identification and application of an endophytic fungusFrontiers in plant science · 2024Article
- Diversity of Fungal Communities on Diseased and Healthy Cinnamomum burmannii Fruits and Antibacterial Activity of Secondary Metabolites.Microbiology spectrum · 2023Article
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9 authors at 2 institutions in 1 country.
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Abstract
backgroundEucalyptus bacterial wilt caused by Ralstonia solanacearum is an important eucalyptus disease. Endophytic fungi, an important source of natural active substances, provide a new breakthrough for the control of plant diseases.
resultsIn the present study, 80 endophytic fungal isolates were obtained from the healthy branches and fruits of Eucalyptus exserta. Fifteen distinct isolates (MK120854-MK120868) were selected for further taxonomic identification through morphological trait assessments and internal transcribed spacer (ITS) region-rRNA gene sequence analysis. Thirteen genera, namely, Phyllosticta, Penicillium, Eutypella, Purpureocillium, Talaromyces, Lophiostoma, Cladosporium, Pestalotiopsis, Chaetomium, Fusarium, Gongronella, Scedosporium and Pseudallescheria, were identified on the basis of their morphological characteristics. Members of the genus Phyllosticta were the primary isolates, with a colonization frequency (CF) of 27.5 %. Most of the fungal isolates displayed antibacterial activity. The crude extracts obtained from Lophiostoma sp. Eef-7, Pestalotiopsis sp. Eef-9 and Chaetomium sp. Eef-10 exhibited strong inhibition on the test bacteria, and Lophiostoma sp. Eef-7 was further cultured on a large scale. Three known compounds, scorpinone (1), 5-deoxybostrycoidin (2) and 4-methyl-5,6-dihydro-2 H-pyran-2-one (3), were isolated from the endophytic fungus Lophiostoma sp. Eef-7 associated with E. exserta. The structures of these compounds were elucidated by analysis of 1D and 2D NMR and HR-ESI-MS spectra and a comparison of their spectral data with published values. Compounds 1 and 2 showed weak antimicrobial activity against Ralstonia solanacearum.
conclusionsEndophytic fungi from Eucalyptus exserta may represent alternative sources of antimicrobial agents. Lophiostoma sp. Eef-7 can produce 2-azaanthraquinone derivatives and shows weak antibacterial activity against Ralstonia solanacearum.
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