Effect of ent-labdane diterpenes from Potamogetonaceae on Selenastrum capricornutum and other aquatic organisms.
Twenty ent-labdane diterpenes, isolated from the aquatic plants Ruppia maritima and Potamogeton natans, were tested to detect their effects on aquatic organisms from different trophic levels. Toxicity tests were performed on aquatic producers (the alga Selenastrum capricornutum), and consumers including a rotifer (Brachionus calyciflorus), a cladoceran crustacean (Daphnia magna), and two anostracan crustaceans (Thamnocephalusplatyurus and Artemia salina). Furano-ent-labdanes exhibited high toxicity toward all of these organisms. 15,16-Epoxy-12(S)-hydroxy-8(17),13(16),14-ent-labdatrien-20.19-olide had a high toxicity only toward the algae and the rotifers. It was inactive for the crustaceans.
Dipartimento di Scienze della Vita, Seconda Università di Napoli, Caserta, Italy.
Tiziana
T
Cangiano
Marina
M
Dellagreca
Antonio
A
Fiorentino
Marina
M
Isidori
Pietro
P
Monaco
Armando
A
Zarrelli
D000818:Animals; D000460:Chlorophyta / Q000187:drug effects*; D003445:Crustacea / Q000187:drug effects*; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification / Q000633:toxicity*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D031821:Potamogetonaceae / Q000737:chemistry*; D018675:Toxicity Tests
D004224:Diterpenes; C433017:labdane