Prayan Pokharel


University of Hohenheim

Currently, I am a doctoral student in Insect Chemical Ecology. My research work is based on the conceptual framework of plant-insect coevolution. In brief, I am interested in plant-herbivore interactions, mainly in the uptake and use of plant toxins by herbivorous insects (i.e. sequestration). Specifically, I investigate the mechanisms underlying the sequestration of cardiac glycosides (cardenolides) in milkweed bugs (Lygaeinae). During my doctoral research, I try to understand the mechanisms and the evolution of these physiological processes.

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Female scorpions pay a steep cost when they shed their tails for survival

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Many species shed limbs and tails to escape sticky situations

Whiteflies evolved to disarm plants' defenses with sugar

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This adaptive sugarcoating means trouble for agriculture

Though smelling sweet, linden trees are bad for bumblebees

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A new study finds that linden nectar inflicts a one-two punch of toxicity and starvation on bees that depend on it