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Credit: photo/©: Anne Fabricant The Venus flytrap (Dionaea muscipula) is a carnivorous plant that encloses its prey using modified leaves as a trap. During this process, electrical signals known as action potentials trigger the closure of the leaf lobes. An interdisciplinary team of scientists has now shown that these electrical signals generate measurable magnetic fields. Using atomic magnetometers, it proved possible to record this biomagnetism. You could say the investigation is a little like performing an MRI scan in humans, said physicist Anne Fabricant. The problem is that the magnetic signals in plants are very weak, which explains why it was extremely difficult to measure them with the help of older technologies.

Dmitry budkerPhysikalisch technische bundesanstaltGerman research foundationJohannes gutenberg university mainzGerman federal ministry of educationHelmholtz institute mainzBudker groupHedrich group on molecular plant physiologyCarl zeiss foundationAnne fabricantProfessor dmitry budkerGerman federal ministryInstitute mainzMolecular plant physiologyUltra low magnetic fieldsSofja kovalevskaja award