Ethylene of no effect: Why peppers do not mature after picking

(Phys.org) -- The plant hormone ethylene lets green tomatoes ripen even after the harvest, whereas the closely related chili peppers show no such effect. Researchers from the Max-Planck-Institute of Molecular Plant Physiology wanted to understand the reason for that and compared gene expression levels and metabolic pathways of both plant species. Understanding the ripening process is important to minimize the amount of food that festers on the way from the producer to the consumer.

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