ganjah shaman
Member
D. Flower Scent
Floral scent is an important and fascinating character of floricultural crops, and is one of the most important consumer traits for cut flowers. Many modern cut flower varieties have little or no scent. This is because there is a negative correlation between postharvest vase life and fragrance. Flower breeders have placed a high priority on selection for good vase-life, so selecting out well- perfumed varieties (Gudin, 1995).
What is known of the chemistry and biochemistry of scent has been reviewed recently by Aharoni et al. (2006), Schnepp and Dudareva (2006), and Pichersky and Dudareva (2007). The terpenoids produced in flowers included the essential oils that are important to the perfume industry and the ability to manipulate the type, concentration, and ratios of these compounds may also be a beneficial application of gene-technology in floricultural plants in the future, as flower species are the main source of oils for perfumes. Genes that regulate that biosynthesis of compounds related to scent are starting to be identified. An example is the ODORANTI gene from petunia (Verdonk et al., 2005).
One function of floral scent is to attract pollinators (Pichersky and Gershenzon, 2002), and recent studies indicate that some volatile compounds attract natural predators of herbivores, or repel herbivores (Bennett and Wallsgrove, 1994). The same volatiles play an important role as antimicrobial compounds or act as signals that activate disease resistance. Floral scent is a mixture of various volatile compounds such as terpenoids, phenylpropanoids, benzenoids, and fatty acid derivatives. Bouwmeester (2006) has provided an overview of the successf
Source: Critical Reviews in Plant Sciences
Floral scent is an important and fascinating character of floricultural crops, and is one of the most important consumer traits for cut flowers. Many modern cut flower varieties have little or no scent. This is because there is a negative correlation between postharvest vase life and fragrance. Flower breeders have placed a high priority on selection for good vase-life, so selecting out well- perfumed varieties (Gudin, 1995).
What is known of the chemistry and biochemistry of scent has been reviewed recently by Aharoni et al. (2006), Schnepp and Dudareva (2006), and Pichersky and Dudareva (2007). The terpenoids produced in flowers included the essential oils that are important to the perfume industry and the ability to manipulate the type, concentration, and ratios of these compounds may also be a beneficial application of gene-technology in floricultural plants in the future, as flower species are the main source of oils for perfumes. Genes that regulate that biosynthesis of compounds related to scent are starting to be identified. An example is the ODORANTI gene from petunia (Verdonk et al., 2005).
One function of floral scent is to attract pollinators (Pichersky and Gershenzon, 2002), and recent studies indicate that some volatile compounds attract natural predators of herbivores, or repel herbivores (Bennett and Wallsgrove, 1994). The same volatiles play an important role as antimicrobial compounds or act as signals that activate disease resistance. Floral scent is a mixture of various volatile compounds such as terpenoids, phenylpropanoids, benzenoids, and fatty acid derivatives. Bouwmeester (2006) has provided an overview of the successf
Source: Critical Reviews in Plant Sciences