Hydrocarbons of Polytrichum commune
1994
Nissinen, R. | Sewon, P.
Hydrocarbon patterns were studied in different tissues of Polytrichum commune. The polyunsaturated n-all-cis-6,9,12,15-heneicosatetraene (21:4) and n-all-cis-3,6,9,12,15-heneicosapentaene (21:5) were the major hydrocarbons in spores, protonemata and leaves. They were also found in smaller amounts in stems, fertile shoot tops containing antheridia and in leaf surface wax. Leaf surface wax differed from all other tissues because of its high content of long-chain odd-numbered alkanes and its low content of C21 polyenes. These polyenes were also found in the spores of other representatives of Polytrichales (P. juniperinum, P. piliferum and Polytrichastrum formosum). Thus, mosses in the order Polytrichales have, in common with algae, the capacity to synthetize polyenoic hydrocarbons with at least up to five double bonds. The moss species studied did not contain 21:6, the major hydrocarbon of Fucus vesiculosus.
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