(2E, 4Z)-Decadienoic acid and (2E, 4Z, 7Z)-decatrienoic acid, two herbicidal metabolites fromStreptomyces viridochromogenes Tü 6105

1999 ◽  
Vol 55 (7) ◽  
pp. 733-739
Author(s):  
Armin Maier ◽  
Johannes Müller ◽  
Peter Schneider ◽  
Hans-Peter Fiedler ◽  
Ingrid Groth ◽  
...  
Keyword(s):  
1964 ◽  
Vol 29 (6) ◽  
pp. 730-734 ◽  
Author(s):  
W. G. JENNINGS ◽  
R. K. CREVELING ◽  
D. E. HEINZ

1997 ◽  
Vol 3 (4) ◽  
pp. 409-413
Author(s):  
Junko IRIE ◽  
Yoshie MORITA ◽  
Masatsune MURATA ◽  
Seiichi HOMMA

Molecules ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 301 ◽  
Author(s):  
Bayar Chuluunbaatar ◽  
Zoltán Béni ◽  
Miklós Dékány ◽  
Bernadett Kovács ◽  
András Sárközy ◽  
...  

Twelve compounds (1–12) were isolated from the methanol extract of brick cap mushroom (Hypholoma lateritium (Schaeff.) P. Kumm.). The structures of the compounds were elucidated using extensive spectroscopic analyses, including NMR and MS measurements. Lanosta-7,9(11)-diene-12β,21α-epoxy-2α,3β,24β,25-tetraol (1) and 8-hydroxy-13-oxo-9E,11E-octa-decadienoic acid (2) were identified as new natural products, together with ten known compounds, from which 3β-hydroxyergosta-7,22-diene (4), demethylincisterol A2 (5), cerevisterol (6), 3β-O-glucopyranosyl-5,8-epidioxyergosta-6,22-diene (7), fasciculol E (9), and uridine (12) were identified in this species for the first time. The isolated triterpenes (1, 3–11) were investigated for their toxicity in vivo using bdelloid rotifer assays. Most of the examined steroids in general showed low toxicity, although the effects of the compounds varied in a wider range from the non-toxic lanosta-7,9(11)-diene-12β,21α-epoxy-2α,3β,24β,25-tetraol (1) to the significantly toxic cerevisterol (6), with substantial dependence in some cases on the presence of nutrient in the experimental environment.


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