Journal
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
Volume 63, Issue 15, Pages 2598-2611Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10408398.2021.1978384
Keywords
Apples; Penicillium expansum; physiological mechanisms; molecular mechanisms; control methods; future prospects
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One of the major challenges in postharvest apple deterioration is the blue mold caused by Penicillium expansum, which results in significant economic losses. Current physical control methods cannot fully inhibit the growth of P. expansum, therefore alternative methods are needed. Research has shown that P. expansum infection not only enhances pathogenicity, but also suppresses the expression of host defense genes. With the advancements in omics technology, new ways to investigate and control P. expansum are expected.
One of the most significant challenges associated with postharvest apple deterioration is the blue mold caused by Penicillium expansum, which leads to considerable economic losses to apple production industries. Apple fruits are susceptible to mold infection owing to their high nutrient and water content, and current physical control methods can delay but cannot completely inhibit P. expansum growth. Biological control methods present promising alternatives; however, they are not always cost effective and have application restrictions. P. expansum infection not only enhances disease pathogenicity, but also inhibits the expression of host-related defense genes. The implementation of new ways to investigate and control P. expansum are expected with the advent of omics technology. Advances in these techniques, together with molecular biology approaches such as targeted gene deletion and whole genome sequencing, will lead to a better understanding of the P. expansum infectious machinery. Here, we review the progress of research on the blue mold disease caused by P. expansum in apples, including physiological and molecular infection mechanisms, as well as various methods to control this common plant pathogen.
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