Optimisation of the Postharvest Treatment with Thymol to Control Mango Anthracnose

• 作者: Jean-Christophe Meile Jérome Minier Marc Chillet Mathilde Hoarau
• 来源期刊: 美国植物学期刊(英文)
• 学科: 数学
• 关键词: MANGO Mangifera indica ANTHRACNOSE Colletotrichum gloeosporioides Biological Control Phenolic Compound THYMOL
• 年，卷（期）: mgzwxqkyw_2020,（8）
• 页码范围: 1235-1246
• 页数: 12页
• 分类号: O17

摘要

Anthracnose, caused by the fungus called <i><span style="font-family:Verdana;">Colletotrichum</span></i> <i><span style="font-family:Verdana;">gloeosporioides</span></i><span style="font-family:Verdana;">, is the main postharvest disease that affects mango production on Reunion Island. Fruit</span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">s</span></span></span><span><span><span style="font-family:;" "=""><span style="font-family:Verdana;"> for the export market are always treated with chemicals. The use of chemical treatment is not in adequation with consumer expectations, and the increasing emergence of fungicide-resistant isolates promotes the development of alternatives methods. The principal objective of this work was to use antimicrobial properties of thymol as an alternative postharvest treatment on mango. Thymol diluated in a penetrating agent solution was effective on mango anthracnose. At a concentration of 0.025%, Thymol limited necrosis </span><span style="font-family:Verdana;">development due to pathogens during fruit storage. This treatment can</span><span style="font-family:Verdana;"> stimulate some of polyphenols biosynthesis involved in the fruit resistance to postharvest disease, particularly the<span style="white-space:nowrap;">synthesis</span> of gallic acid and resorcinol. With this final concentration of 0.025% thymol, the treatment did not affect fruit maturation and quality, especially the peel colour and sugar content. Importantly, the treatment did not show any detectable effect on organoleptic qualities of the fruit.</span></span></span></span>