High temperatures kill the scent of plants

Not only are plant growth problems problematic, but also difficulties with fragrance production. High temperatures negatively impact flowers' ability to produce the fragrances they need to attract pollinating insects. Scientists from the Hebrew University of Jerusalem have demonstrated that flowers produce fewer aromatic compounds at high temperatures. This is linked to global warming and the overall rise in temperatures. This disrupts the mutual relationship between plants and pollinating insects. This relationship is based on the scent and color of flowers. Scientists analyzed two varieties of petunias. Research coordinator Alon Cna'ani noted that the PH4 gene regulates the production and secretion of scent in flowers. When its production is inhibited, plants stop smelling, even though they continue to produce fragrance.