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Phytotoxic metabolites from Stilbocrea macrostoma, a fungal pathogen of Quercus brantii in Iran
- Source :
- Natural Product Research. 35:5857-5861
- Publication Year :
- 2020
- Publisher :
- Informa UK Limited, 2020.
-
Abstract
- Two phytotoxic furan derivatives were isolated, together with the well-known fungal and plant phytotoxin tyrosol, from the culture filtrates of Stilbocrea macrostoma. This fungal pathogen isolated from Quercus brantii trees induced wood necrosis and decline symptoms on the host plant in Iran. The two furan derivatives, isolated for the first time from Stilbocrea macrostoma, were identified by spectroscopic methods (essentially 1 D and 2 D 1H and 13C NMR and ESIMS spectroscopy) as 5-hydroxymethylfuraldehyde and 2,5-dihydroxymethylfuran. The phytotoxic activity of the three metabolites was evaluated by leaf puncture assay on holm oak (Quercus ilex L.) and tomato (Lycopersicon esculentum L.) leaves. All compounds induced necrosis on holm oak leaves while very low toxicity was showed against tomato leaves. The two furan derivatives were more toxic than tyrosol and particularly 5-hydroxymethylfuraldehyde was the most phytotoxic compound.
- Subjects :
- Plant Science
01 natural sciences
Biochemistry
Lycopersicon
Stilbocrea macrostoma
Analytical Chemistry
oak tree
phytotoxins
chemistry.chemical_compound
Botany
Quercus brantii
furan derivative
Low toxicity
biology
010405 organic chemistry
Chemistry
Organic Chemistry
food and beverages
5-hydroxymethyl-2-furaldehyde and 2,5-dihyroxymetylfuran
Fungal pathogen
Phytotoxin
biology.organism_classification
0104 chemical sciences
Tyrosol
010404 medicinal & biomolecular chemistry
Subjects
Details
- ISSN :
- 14786427 and 14786419
- Volume :
- 35
- Database :
- OpenAIRE
- Journal :
- Natural Product Research
- Accession number :
- edsair.doi.dedup.....5a6b832c2346df5b3e7bcca8bed75986