Tobacco seedlings on growth medium with an antibiotic. Plants with exclusively maternally inherited chloroplasts sensitive to the antibiotic are pale. Two seedlings contain green, intact chloroplasts in the leaves (red arrows). These chloroplasts are resistant to the antibiotic and were passed on from the father plant.
Under cold conditions, not only the mother plant but also the father plant can pass on its chloroplasts to the offspring. Tobacco seedlings on growth medium with an antibiotic. Plants with exclusively maternally inherited chloroplasts sensitive to the antibiotic are pale. Two seedlings contain green, intact chloroplasts in the leaves (red arrows). These chloroplasts are resistant to the antibiotic and were passed on from the father plant. MPI-MP - Scientists at the Max Planck Institute of Molecular Plant Physiology in Potsdam analyzed for the first time the inheritance of chloroplasts under a wide range of environmental conditions. Contrary to the prevailing view that chloroplasts are only passed on by the mother plant, paternal chloroplasts can also be transmitted to the offspring under cold conditions.
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