Regional and habitat differences in 7-methyljuglone content of Finnish Drosera rotundifolia.
The concentration of 7-methyljuglone was studied in the round-leaved sundew Drosera rotundifolia L. collected from different regions in Northern Finland. Samples for analysis were collected from peat bogs and sandpit habitats. The mean concentration of 7-methyljuglone varied from 1.0 to 2.3% of dry weight. Variation between years in the amount of 7-methyljuglone was significant in plants growing on sand, and in the northernmost region studied. Overall, the variation in the production of 7-methyljuglone among different populations of round-leaved sundew in Northern Finland was rather low. The variation between years in the production of 7-methyljuglone was more significant.
Department of Biology/Botany, University of Oulu, PO Box 3000, FIN-90014, Oulu, Finland. terttu.kamaraainen@oulu.fi
Terttu
T
Kämäräinen
Jouko
J
Uusitalo
Jorma
J
Jalonen
Kari
K
Laine
Anja
A
Hohtola
D029787:Drosera / Q000737:chemistry / Q000254:growth & development / Q000378:metabolism*; D004777:Environment; D005387:Finland; D009285:Naphthoquinones / Q000378:metabolism*; D011891:Rain; D012621:Seasons; D013223:Statistics as Topic; D013696:Temperature
D009285:Naphthoquinones; C005134:juglone