Citriculture is an important economic activity worldwide and for decades, this sector has been responsible for creating job opportunities. Currently, Brazil is the largest orange producer in the world, which contributes to the country's economy. However, citrus production has been facing several issues that compromise the quality of the fruits. For instance, several postharvest diseases occur during storage and transportation, directly harming product marketing. Green mold, blue mold, and sour rot are considered the most common postharvest citrus diseases. Citrus sour rot is less common; however, the disease can lead to a significant loss in high rainfall seasons. The fungus Geotrichum candidum is the causal agent of sour rot and its chemical and biochemical infection strategies are still little explored in citrus fruits. Several conventional control methods, including the application of fungicides, aim to contain the disease proliferation, but most of the commercially available fungicides are not efficient against sour rot. For this reason, other strategies have been studied for disease control, such as chemicals (e. g. essential oils or other natural products), biological agents used as biocontrol, and physical strategies. Despite its importance, few reviews have focused on sour rot disease. Here, we summarize the biochemical aspects of G. candidum, as well as the metabolites produced by this phytopathogen, the known virulence factors, and advances for disease management.

柑橘栽培是全球重要的经济活动，几十年来，该部门一直负责创造就业机会。目前，巴西是世界上最大的橙子生产国，为该国的经济做出了贡献。然而，柑橘生产一直面临着影响水果质量的几个问题。例如，在储存和运输过程中会发生一些收获后疾病，直接损害产品营销。绿霉病、蓝霉病和酸腐病被认为是最常见的柑橘采后病害。柑橘酸腐病不太常见；然而，这种疾病会在高降雨季节导致重大损失。真菌地霉是酸腐病的病原体，其化学和生化感染策略在柑橘类水果中的研究仍然很少。包括使用杀菌剂在内的几种常规控制方法旨在遏制病害扩散，但大多数市售杀菌剂对酸腐病无效。出于这个原因，已经研究了用于疾病控制的其他策略，例如化学品（例如精油或其他天然产品）、用作生物控制的生物制剂和物理策略。尽管它很重要，但很少有评论关注酸腐病。在这里，我们总结了念珠菌的生化方面，以及这种植物病原体产生的代谢物、已知的毒力因子以及疾病管理的进展。