Control of Postharvest Brown Rot (Monilinia laxa) Disease Through Copper Sulfate and Antagonistic Bacterial Combinations

Future Postharvest and Food Pub Date : 2026-03-26 Epub Date: 2026-03-12 DOI:10.1002/fpf2.70043

Kenza Bouzoubaa, Rachid Ezzouggari, Salah-Eddine Laasli, Abdellatif Boutagayout, Rachid Lahlali

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Abstract

Brown rot, caused by Monilinia laxa, severely affects stone fruit storage, prompting the search for eco-friendly control alternatives. This study evaluated the effectiveness of Bacillus amyloliquefaciens (B10W10) and Pseudomonas sp. (B11W11), alone or combined with copper(II) sulfate, in controlling M. laxa infections postharvest. In vitro trials revealed significant fungal inhibition (17.50%–93.98%) with copper(II) sulfate and bacterial combinations. In vivo tests on nectarines showed reduced disease severity (5.74%–63.39%) after 5 days at 22°C, with 2% copper(II) sulfate plus B. amyloliquefaciens (B10W10) proving most effective. ATR-FTIR spectroscopy confirmed biochemical changes in fungal biomass and nectarines. These findings support copper(II) sulfate, particularly in combination with B. amyloliquefaciens, as a practical alternative to conventional fungicides.

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硫酸铜与拮抗菌联合防治采后褐腐病

褐腐病是由念珠菌引起的，严重影响核果的贮藏，促使人们寻找环保的防治方法。本研究评价了解淀粉芽孢杆菌（B10W10）和假单胞菌（B11W11）单独使用或与硫酸铜（II）联合使用对采后轻肠杆菌感染的控制效果。体外实验表明，硫酸铜（II）和细菌组合对真菌的抑制作用显著（17.50% ~ 93.98%）。油桃体内试验显示，在22°C条件下放置5天后，油桃疾病严重程度降低（5.74%-63.39%），其中2%硫酸铜（II）加解淀粉酵母菌（B10W10）最有效。ATR-FTIR光谱证实了真菌生物量和油桃的生化变化。这些发现支持硫酸铜（II），特别是与解淀粉芽孢杆菌结合，作为传统杀菌剂的实用替代品。

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Future Postharvest and Food

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