Two new phytotoxic Delta(alpha,beta)-butenolides, 7'-hydroxyseiridin [1] and 7'-hydroxyisoseiridin [2], were isolated from culture filtrates of three species of Seiridium (S. cardinale, S. cupressi, and S. unicorne). These fungi are associated with the canker diseases of cypress trees (Cupressus sempervirens) in the Mediterranean area. The structures of butenolides 1 and 2 were established using spectroscopic and chemical methods in comparison with seiridin [5] and isoseiridin [6], two phytotoxic metabolites produced in higher concentration by the same fungal species. Necrotic and chlorotic symptoms were produced on cuttings of both host and non-host plants by absorption of 100 or 50 mu M solutions, respectively, of compounds 1 and 2.

7'-hydroxyseiridin and 7'-hydroxyisoseiridin, 2 New Phytotoxic Delta(alpha,beta)-butenolides From 3 Species of Seiridium Pathogenic To Cypresses / Evidente, Antonio; L., Sparapano. - In: JOURNAL OF NATURAL PRODUCTS. - ISSN 0163-3864. - STAMPA. - 57:(1994), pp. 1720-1725. [10.1021/np50114a017]

7'-hydroxyseiridin and 7'-hydroxyisoseiridin, 2 New Phytotoxic Delta(alpha,beta)-butenolides From 3 Species of Seiridium Pathogenic To Cypresses

EVIDENTE, ANTONIO;
1994

Abstract

Two new phytotoxic Delta(alpha,beta)-butenolides, 7'-hydroxyseiridin [1] and 7'-hydroxyisoseiridin [2], were isolated from culture filtrates of three species of Seiridium (S. cardinale, S. cupressi, and S. unicorne). These fungi are associated with the canker diseases of cypress trees (Cupressus sempervirens) in the Mediterranean area. The structures of butenolides 1 and 2 were established using spectroscopic and chemical methods in comparison with seiridin [5] and isoseiridin [6], two phytotoxic metabolites produced in higher concentration by the same fungal species. Necrotic and chlorotic symptoms were produced on cuttings of both host and non-host plants by absorption of 100 or 50 mu M solutions, respectively, of compounds 1 and 2.
1994
7'-hydroxyseiridin and 7'-hydroxyisoseiridin, 2 New Phytotoxic Delta(alpha,beta)-butenolides From 3 Species of Seiridium Pathogenic To Cypresses / Evidente, Antonio; L., Sparapano. - In: JOURNAL OF NATURAL PRODUCTS. - ISSN 0163-3864. - STAMPA. - 57:(1994), pp. 1720-1725. [10.1021/np50114a017]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/469279
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 45
  • ???jsp.display-item.citation.isi??? 45
social impact