Four of the investigated species, namely Ophrys sphegodes, Serapias lingua, S. cordigera, and Anacamptis papilionacea, that are pollinated primarily by male bees, produced significantly larger amounts and a greater number of different alkenes than the species pollinated either primarily by female bees or other insects.
Experimental data for the liquid phase hydrogenation of different alkenes over platinum supported on the carbon versus platinum embedded within the same carbon were collected.
Treatment had a significant effect on the relative proportion of the different alkenes between workers from colony SDI8 (F(12,50) = 3.6; P = 0.0007).
The study shows that the aromatics based hydrocarbon pool mechanism, which produces sizable amounts of light alkenes including ethene is suppressed over H-ZSM-22 catalyst.
Montooth and Gibbs showed that immature houseflies have lower amounts of these alkenes but have higher amounts of mbCHCs than mature houseflies.
Catalytic activity and induction of enantioselectivity for the prepared phosphines were evaluated in rhodium catalyzed hydrogenations of different functionalized alkenes.
Species pollinated mostly or solely by male bees (Ophrys sphegodes, Serapias lingua, S. cordigera, Anacamptis papilionacea; group 2) produced significantly higher absolute amounts of alkenes (LSD Post Hoc, group 1 2: P < 0.001; 2–3 P = 0.002; Fig. 2) and greater number of alkenes with different double bond position (Mann-Whitney U-test: group 1 2: P = 0.01; 2–3: P = 0.006) than the other groups.
In our analyses, pollinator category had a significant effect on the absolute amounts of alkenes (Fig. 2; ANOVA, F2,14 = 12.05, P = 0.001) and numbers of alkenes (Kruskal-Wallis, Chi2 = 9.0, d.f. = 2, P = 0.01) produced by the flowers.
Small amounts of alkenes were also detected in the products.
