The odors may be sweet, but they're deadly if you’re a wasp.
. Their signature purple or reddish flowers are actually leaves which form a cup called the “pitcher” filled with digestive enzymes. If an insect gets too close to the plant, the pitcher traps it and digests the insect to help supplement their diet in a nutrient-poor home.
The odor of carnivorous plants hasn’t been well-studied by humans, but has been suspected for over a century., but it’s been more difficult to find concrete evidence of its olfactory mechanisms. “Of the signals involved in communication, odor is probably the most cryptic to humans,’ co-author and carnivorous plant expert French National Centre for Scientific Research Laurence Gaume
. “In plants, it is often correlated with other plant characteristics such as nectar, shape and visual signals, which make it difficult to disentangle its effect from others.”, a team identified the odor molecules emanating from four types of pitcher plants. The scents appear to correlate with the types of incense that wound up inside of the pitchers.
“It offers potentially interesting avenues in the field of biological control, and one can imagine drawing inspiration from the olfactory cues of these pitcher plants to control plant pests, for example,”
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