A new phytotoxic unrearranged ent-pimaradiene diterpene, named chenopodolin, was isolated from the liquid culture of Phoma chenopodicola, a fungal pathogen proposed for the biological control of Chenopodium album, a common worldwide weed of arable crops such as sugar beet and maize. The structure of chenopodolin was established by spectroscopic, X-ray, and chemical methods as (1S,2S,3S,4S,5S,9R,10S,12S,13S)-1,12-acetoxy-2,3-hydroxy-6-oxopimara-7(8),15-dien-18-oic acid 2,18-lactone. At a concentration of 2 mg/mL, the toxin caused necrotic lesions on Mercurialis annua, Cirsium arvense, and Setaria viride. Five derivatives were prepared by chemical modification of chenopodolin functionalities, and some structure–activity relationships are discussed.
Chenopodolin: A Phytotoxic Unrearranged ent-Pimaradiene Diterpene Produced by Phoma chenopodicola, a Fungal Pathogen for Chenopodium album Biocontrol / Cimmino, Alessio; Andolfi, Anna; M. C., Zonno; F., Avolio; Santini, Antonello; Tuzi, Angela; A., Berestetskyi; M., Vurro; Evidente, Antonio. - In: JOURNAL OF NATURAL PRODUCTS. - ISSN 0163-3864. - 76:7(2013), pp. 1291-1297. [10.1021/np400218z]
Chenopodolin: A Phytotoxic Unrearranged ent-Pimaradiene Diterpene Produced by Phoma chenopodicola, a Fungal Pathogen for Chenopodium album Biocontrol
CIMMINO, ALESSIO;ANDOLFI, ANNA;SANTINI, ANTONELLO;TUZI, ANGELA;EVIDENTE, ANTONIO
2013
Abstract
A new phytotoxic unrearranged ent-pimaradiene diterpene, named chenopodolin, was isolated from the liquid culture of Phoma chenopodicola, a fungal pathogen proposed for the biological control of Chenopodium album, a common worldwide weed of arable crops such as sugar beet and maize. The structure of chenopodolin was established by spectroscopic, X-ray, and chemical methods as (1S,2S,3S,4S,5S,9R,10S,12S,13S)-1,12-acetoxy-2,3-hydroxy-6-oxopimara-7(8),15-dien-18-oic acid 2,18-lactone. At a concentration of 2 mg/mL, the toxin caused necrotic lesions on Mercurialis annua, Cirsium arvense, and Setaria viride. Five derivatives were prepared by chemical modification of chenopodolin functionalities, and some structure–activity relationships are discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
