Betaenones are phytotoxins found in the fungus ''

Pleospora betae ''Pleospora betae'' is a plant pathogen infecting beet. It contains the chemical substances betaenone A, B and C. Pleospora betae develops on dead beet residues and is a marsupial stage of the Phoma betae anamorph, parasitizing on beets and ca ...

''. The compounds were found to inhibit a variety of protein kinases. Members of this class of chemical compounds include: *

Betaenone A Betaenone A, like other betaenones ( B and C), is a secondary metabolite isolated from the fungus ''Pleospora betae'', a plant pathogen. Of the seven phytotoxins isolated in fungal leaf spots from sugar beet (''Beta vulgaris''), it showed 73% gro ...

Betaenone B Betaenone B, like other betaenones ( A and C), is a secondary metabolite isolated from the fungus ''Pleospora betae'', a plant pathogen. Its phytotoxic properties have been shown to cause sugar beet leaf spots, which is characterized by black, ...

Betaenone C Betaenone C, like other betaenones ( A and B), is a secondary metabolite isolated from the fungus ''Pleospora betae'', a plant pathogen. Of the seven phytotoxins isolated in fungal leaf spots from sugar beet (''Beta vulgaris''), it showed 89% gro ...

Two further betaenones were found in a species of the fungus ''

Microsphaeropsis ''Microsphaeropsis'' is a genus of fungi belonging to the family Didymosphaeriaceae. The genus has a cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most o ...

'', which was isolated from the

marine sponge Sponges, the members of the phylum Porifera (; meaning 'pore bearer'), are a basal animal clade as a sister of the diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through th ...

'' Aplysina aerophoba''.

References

{{reflist Decalins Tertiary alcohols Cyclic ketones Hydroxyketones