Thursday, October 30, 2008

Floral Scent Abstract

Floral scent is important to plant reproduction because it attracts pollinators to the sexual organs. Therefore, volatile emission is usually tuned to the foraging activity of the pollinators. In Petunia hybrida, volatile benzenoids determine the floral aroma. Although the pathways for benzenoid biosynthesis have been characterized, the enzymes involved are less well understood. How production and emission are regulated is unknown. By targeted transcriptome analyses, we identified ODORANT1 (ODO1), a member of the R2R3-type MYB family, as a candidate for the regulation of volatile benzenoids in Petunia hybrida cv W115 (Mitchell) flowers. These flowers are only fragrant in the evening and at night. Transcript levels of ODO1 increased before the onset of volatile emission and decreased when volatile emission declined. Downregulation of ODO1 in transgenic P. hybrida Mitchell plants strongly reduced volatile benzenoid levels through decreased synthesis of precursors from the shikimate pathway. The transcript levels of several genes in this pathway were reduced by suppression of ODO1 expression. Moreover, ODO1 could activate the promoter of the 5-enol-pyruvylshikimate-3-phosphate synthase gene. Flower pigmentation, which is furnished from the same shikimate precursors, was not influenced because color and scent biosynthesis occur at different developmental stages. Our studies identify ODO1 as a key regulator of floral scent biosynthesis.

Wednesday, October 29, 2008

Why Flowers Are Still the Preferred Source for Better Perfumes

While perfumes can be made from many different substances, like fruits, herbs, trees, grasses, tobacco and chocolate, and sometimes even from animal products, their base is very frequently the scent from flowers. Each particular flower has a particular smell that can add a distinctive quality to a perfume. Some flowers can generate even more than one aroma

The difference in the smell of a flower can even create to be studied like the differences between the flavors of a wine. Things like where the flower grew, soil conditions, even whether or not pesticides were used to care for the plant, all affect the way its flowers will smell.

Fragrance makers are finely aware of these things and select consequently. Fragrance makers separate the essential oils, the essence of aromas, from plants and flowers to use in their products. Essential oils can be extracted from pretty much any organic substance, but by far the most common ones used in fragrance creation are rose, jasmine and orange flowers. Another flower, somewhat less commonly used, is the ylang-ylang flower.

The ylang-ylang flower is the most foreign of the common ingredients in perfumes. It is found merely in Southeast Asia. The best ylang-ylang flowers are harvested only after the buds have been open for a couple weeks, and then instantly processed, like jasmine.

Monday, October 20, 2008

Davidoff Fragrance

Davidoff have created some outstanding and enduring fragrances for both men and women. Each Davidoff fragrance is unique and unforgettable and can be worn whatever your mood. Select from the mouth-watering and fresh Cool Water Ranges for both Men and Women or the floral but cool Echo for Men and Echo for Women.

Tuesday, October 14, 2008

Cacharel Fragrance

The name Cacharel is the name of a pretty bird from Camarque in southern France. Cacharel became well-known for unique, iconic styling and quality as well as the award winning perfumes Noa, Eden and Lou Lou. The first Cacharel fragrance was Anais Anais in 1978 and pioneered the idea of designer fragrances at an affordable price.

Tuesday, October 7, 2008

The History of Caron Perfumes and Fragrance

The Caron perfume house celebrated a century of fragrance last year and continued to represent luxury and tradition throughout a competitive history. This is brief history of Caron Paris and some of their popular perfumes is sourced directly from Caron public relations department and may be interest to perfume fans.

Saturday, October 4, 2008

The National Herb Garden

The National Herb Garden, a popular feature on the grounds of the U.S. National Arboretum (USNA) in Washington, D.C., began as a special gift to the people of the United States from the Herb Society of America. Headquartered in Kirtland, Ohio, the society spent 15 years working with the U.S. government and raising matching funds to ensure its completion.
The garden was dedicated in May 1980. Recently, the arboretum embarked on a 6-month celebration of the 25th anniversary of its opening. Says horticulturist Jim Adams, the National Herb Garden’s curator, “We’re very excited. We’ve scheduled many special lectures and demonstrations to help our visitors understand the central role that herbs have played in societies for many centuries.”
Planned by landscape architect Tom Wirth—who was then with Sasaki Associates of Watertown, Massachusetts—this is the largest designed herb garden in North America and includes annual, perennial, and woody herbal plants. Its 2.5 acres are divided into three main sections, one of which is subdivided into 10 specialty gardens. Plants are labeled, and interpretive signs help visitors understand the collection in the context of the herbs’ history and use. A major USNA renovation a few years ago now gives full accessibility to the herb garden via broad paths and gentle inclines.