Insects and bats, that are a type of flower visitors detect the scent of flowers for chemoreceptors of variable specificity for a specific VOC. Further projecting onto an olfactory receptor neuron and finally triggering a behavioural response following processing of information (olfaction, see also insect olfaction), the fixation of a VOC at a chemoreceptor triggers the activation of an antennal glomerulus. Simultaneous different VOCs perception could result to activation of multiple glomeruli, but the output signal may not be additive due to synergistic or antagonistic mechanisms involving inter-neuronal activity. That’s why, within a floral mix, the perception of a VOC may trigger a different behavioural response than in isolates. There are florist in houston where stop and shop florist wedding and buy the sunflower bouquet Houston, TX and houston flowers and gifts.
Similarly, with few VOCs having a large effect on pollinator behavior in small amounts in a floral mix, the output signal is not proportional to the number of VOCs. A good characterization of flower aroma, both qualitative and quantitative, is essential to understand and potentially predict the behavior of flower visitors. Flower visitors use the scent of flowers to locate, identify and locate their host species, and even to discriminate between flowers of the same plant. Where the diversity of VOCs and their relative amounts can be characteristic of both the flowering species, this is made possible by the high specificity of floral aromas, an individual plant, the individual plant’s flower and the distance of the plume from the source.
Flower visitors rely on long-term and short-term memory that allows them to efficiently select their flower, to make best use of this specific information. They learn to collaborate with the plant’s flowers’ scent with rewards such as nectar and pollen, and have different behavioural responses to known odours. They are also capable of reacting similarly to slightly different odour mixtures.
Mediated biotic interactions:
Attracting pollinators is one of the major functions of floral fragrance, and therefore to ensure the reproduction of animal-pollinated plants. Some of the families of VOCs presented in flower fragrances have probably evolved as herbivore repellents. However, similarly to pollinators attracted by floral scent, these plant defences are also used by herbivores to locate the plant resource themselves. Therefore, flower traits may be subject to opposing selection pressure (positive selection by pollination and negative selection by herbivores).