Antifungal Activity and Fungal Metabolism of Steroidal Glycosides of Easter Lily (Lilium longiflorumThunb.) by the Plant Pathogenic Fungus,Botrytis cinerea

2011 ◽  
Vol 59 (11) ◽  
pp. 5945-5954 ◽  
Author(s):  
John P. Munafo ◽  
Thomas J. Gianfagna
2002 ◽  
Vol 57 (9-10) ◽  
pp. 863-866 ◽  
Author(s):  
Afgan Farooq ◽  
Iqbal Choudhary ◽  
Atta-ur- Rahman ◽  
Satoshi Tahara ◽  
K. Hüsnü Can Başer ◽  
...  

Detoxification of an antifungal monoterpene terpinolene (1) by the plant pathogenic fungus Botrytis cinerea afforded hydroxlyated metabolites 2,3-dihydro-3β,6β-dihydroxy-terpinolene (2) (39%) and 2,3-dihydro-1α,3α-dihydroxy-terpinolene (3) (20%), respectively. Terpinolene showed good levels of antifungal activity while both the metabolites were inactive against another plant pathogenic fungus Cladosporium herbarum.


2000 ◽  
Vol 55 (5-6) ◽  
pp. 341-346 ◽  
Author(s):  
Afgan Farooq ◽  
Satoshi Tahara

Ambrox (1), a perfumery diterpene, was oxidatively metabolised by a plant pathogenic fungus Botrytis cinerea in a xenobiotic fashion to afford a major product, i.e., 1β-hydroxy-8- epiambrox (13) (60% ) along with three minor metabolites 3β-hydroxyambrox (2), sclareolide (5) and 3β-hydroxysclareolide (7). Sclareolide (5), a cytotoxic diterpenoidal lactone was fermented with the same fungus to yield 3β-hydroxysclareolide (7) (59% ) as a major metabolite together with two minor metabolites characterised as 1-ketosclareolide (15), and 3β,14-dihydroxysclareolide (16).


2004 ◽  
Vol 152 (10) ◽  
pp. 563-566 ◽  
Author(s):  
J. L. Reino ◽  
R. Hernandez-Galan ◽  
R. Duran-Patron ◽  
I. G. Collado

2019 ◽  
Vol 43 (1) ◽  
pp. 9-12 ◽  
Author(s):  
Nedeljko Latinovic ◽  
Marko Sabovljevic ◽  
Milorad Vujicic ◽  
Jelena Latinovic ◽  
Aneta Sabovljevic

In this study, the extracts of three selected bryophyte species are shown to have inhibitory effects on grey mould disease (Botrytis cinerea). Methanol extracts of one leafy liverwort (Porella platyphylla) and two mosses, one aquatic (Cinclidotus fontinaloides) and one terrestrial (Anomodon viticulosus), were applied in vitro to Botrytis cinerea, after which tests showed suppression of fungal development.


2000 ◽  
Vol 55 (9-10) ◽  
pp. 713-717 ◽  
Author(s):  
Afgan Farooq ◽  
Satoshi Tahara

Abstract Two cytotoxic terpenes, α-santonin (1) and sclareol (3) were biotransformed by a plant pathogenic fungus Botrytis cinerea to produce oxidized metabolites in high yields. α-Santonin (1 ) on fermentation with the fungus for ten days afforded a hydroxylated metabolite identified as 11β-hydroxy-α-santonin (2) in a high yield (83%), while sclareol (3) was metabolized to epoxysclareol (4) (64%) and a new compound 8-deoxy-14,15-dihydro-15-chloro-14-hydroxy- 8,9-dehydrosclareol (5) (7%), representing a rare example of microbial halogenation.


2020 ◽  
Vol 6 (3) ◽  
pp. 149
Author(s):  
Araceli Vidal ◽  
Rodolfo Parada ◽  
Leonora Mendoza ◽  
Milena Cotoras

Botrytis cinerea is an important phytopathogenic fungus affecting the fruit production around the world. This fungus is controlled mainly by using synthetic fungicides, but many resistant isolates have been selected by the indiscriminate use of fungicides. Endophytic fungi or secondary metabolites obtained from them become an alternative method of control for this fungus. The aim of this work was to identify endophytic fungi with antifungal activity against the plant pathogenic fungus B. cinerea isolated from plants from Central Andean Precordillera of Chile. Three endophytic fungi (Ac1, Lc1 and Ec1) with antifungal activity against B. cinerea were isolated from native and endemic plants growing in Central Andean Precordillera of Chile. The isolates Lc1 (isolated from Lithraea caustica) and Ac1 (isolated from Acacia caven) were identified as Alternaria spp. and the isolate Ec1 (isolated from Echinopsis chiloensis) was identified as Aureobasidium spp. The isolated endophytic fungi would inhibit B. cinerea through the secretion of diffusible and volatile compounds affecting the mycelial growth, conidia germination and interestingly, it was also shown that the volatile compounds produced by the three isolated endophytic fungi suppressed the sporulation of B. cinerea.


2002 ◽  
Vol 57 (7-8) ◽  
pp. 686-690 ◽  
Author(s):  
Afgan Farooq ◽  
M. Iqbal Choudhary ◽  
Satoshi Tahara ◽  
Atta-ur-Rahman ◽  
K. Hüsnü Can Başerc ◽  
...  

(-)-β-pinene, a flavor and fragrance monoterpene is an important constituent of essential oils of many aromatic plants. It was oxidized by a plant-pathogenic fungus, Botrytis cinerea to afford four metabolites characterized as (-)-6α-hydroxy-β-pinene, (-)-4β,5β-dihydroxy- β-pinene, (-)-2β,3β-dihydroxypinane, and (-)-4β-hydroxy-β-pinene-6-one by detailed spectroscopic studies along with other known metabolites.


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