Do Apples Have Chitinase? Unpacking the Fruit's Natural Defenses
                                
                                
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                                    4 min read                                
                            
                                In a 2022 study, researchers identified 47 chitinase genes in the genome of domesticated apple (Malus domestica), proving that apples have chitinase. These enzymes are vital components of the fruit's pathogenesis-related (PR) protein family, which serves as a frontline defense against threats like fungal pathogens.