What shape amino acid and sugar composition in Mediterranean floral nectars?

Article Abstract:

The amino acid (AA) composition of the floral nectars of 73 plant species occurring in a phryganic community is studied and whether AA and sugar composition is shaped by evolutionary, ecological and coevolutionary constraints is investigated. The results have indicated that due to the highly concentrated nectars in the dry Mediterranean communities, which are characterized by outstanding melittophily, sugars play a less important role as phagostimulats compared to AAs in floral nectars.

Belgium, Composition, Amino acids, Nectar

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Differential selection on floral traits of Ipomopsis aggregata growing in contrasting environments

Article Abstract:

Research on Ipomopsis aggregata grown in varying environments shows that the presence of the co-flowering species Penstemon barbatus influences floral trait selection of I. aggregata, but not through pollination. Floral trait selection is a result of post-pollination factors linked to the presence of P. barbatus.

United States, Statistical Data Included, Environmental aspects, Vegetation dynamics, Ipomoea

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Natural and artificial floral damage induces resistance in Nemophila menziesii (Hydrophyllaceae) flowers

Article Abstract:

Induced responses in Nemophila menziesii (Hydrophyllaceae), a plant that frequently receives high levels of floral herbivory are examined. The results indicate that induced resistance in reproductive tissues might benefit plants that are exposed to both floral herbivory and pollinator activity.

Science & research, Foliar diagnosis

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