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Current strategies, perspectives and challenges in management and control of postharvest diseases of papaya
Scientia Horticulturae ( IF 4.3 ) Pub Date : 2022-04-20 , DOI: 10.1016/j.scienta.2022.111139
Guang Heng Tan 1 , Asgar Ali 1 , Yasmeen Siddiqui 2
Affiliation  

Papaya (Carica papaya) is essential produce specifically in tropical countries due to its rich nutritional and economic benefits, excellent flavours, drug development and industrial processing. This had become a vital source of income for the papaya growing countries by exporting the fresh fruit and processed products in the countries where the demand for tropical fruit is high. However, this climacteric fruit can deteriorate at a higher rate due to severe infections caused by various pathogens that grow at the fruit epiphytically and endophytically during postharvest handling. These postharvest decays are irreversible and cause significant changes in the overall fruit quality and increase the rates of losses during the postharvest chain in the papaya-producing countries including Malaysia. With a better understanding of the causal agents, subsequent control of papaya fruit is applied to delay the disease establishment by different methods. For example, chemical control involved the utilisation of chemicals to disrupt the growth and development of the fungus, while physical control utilises manual alteration on the fruit surrounding for sterilization and delaying the ripening process. Whereas, biological control relied on the naturally found product which can combat the fungal invasion via competition for nutrients, creating protective barriers, induction of PR proteins and resistance. Since synthetic fungicide had been known to have various drawbacks to human health and the environment, many safe and cost-effective alternatives are introduced. However, some of the promising alternatives are only available during the laboratory stage and indicate their potential to be used on-field by optimization and development of novel and safe products. Therefore, this article reviewed different postharvest control strategies that had successfully controlled or could control the growth of the pathogens of papaya, along with their impacts on the fruit quality based on the literature available currently.



中文翻译:

木瓜采后病害管理和控制的当前策略、前景和挑战

木瓜(Carica papaya )) 因其丰富的营养和经济效益、优良的风味、药物开发和工业加工而成为热带国家的必需产品。这已成为木瓜种植国的重要收入来源,向热带水果需求量高的国家出口新鲜水果和加工产品。然而,由于在收获后处理过程中在果实附生和内生生长的各种病原体引起的严重感染,这种更年期的果实会以更高的速度变质。这些采后腐烂是不可逆转的,会导致整体水果质量发生重大变化,并增加包括马来西亚在内的木瓜生产国采后链中的损失率。随着对致病因素的更好理解,随后通过不同方法对木瓜果实进行控制,以延缓病害发生。例如,化学控制涉及利用化学物质破坏真菌的生长和发育,而物理控制则利用人工改变果实周围的环境来杀菌和延缓成熟过程。然而,生物防治依赖于天然发现的产品,该产品可以通过竞争营养物质、创造保护屏障、诱导 PR 蛋白和抗性来对抗真菌入侵。由于已知合成杀菌剂对人类健康和环境有各种不利影响,因此引入了许多安全且具有成本效益的替代品。然而,一些有前途的替代品仅在实验室阶段可用,并通过优化和开发新型安全产品表明它们具有在现场使用的潜力。因此,本文根据现有文献综述了已成功控制或能够控制木瓜病原菌生长的不同采后控制策略,以及它们对果实品质的影响。

更新日期:2022-04-21
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