A recent Purdue University study has uncovered the processes responsible for shutting down scent production in certain flowers once theyve been pollinated – a finding that may help the horticulture industry enhance floral scent.
Once flowers like these snapdragons have been pollinated, the amount of scent production is reduced, according to a Purdue University study. Researcher Florence Negre, smelling snapdragons in the Purdue greenhouses, participated in the study published this month in The Plant Cell. (Purdue Agricultural Communications photo/Tom Campbell)
Natalia Dudareva, associate professor of horticulture, and her colleagues have recently identified the molecular mechanisms that cause petunias and snapdragons to decrease scent production after theyve been visited by pollinators such as bees or moths. The researchers also proved that fertilization, the reproductive process that follows pollination, triggers a decline in scent production. In addition, their research has identified a new role for the plant hormone ethylene.
The study will appear in the December issue of The Plant Cell and is published online in advance of print today (Thursday, 11/20) at The Plant Cell Preview.
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