百里香酚对蜂糖李采后真菌多样性的影响
Effect of thymol on fungal diversity of postharvest Fengtang plum
张昊 1王瑞 1田一鸣 1马超 1马玉华2
作者信息
- 1. 贵阳学院食品科学与工程学院,贵州 贵阳 550005
- 2. 贵州省农业科学院,贵州 贵阳 550006
- 折叠
摘要
[目的]提高对蜂糖李果实采后病害的防控能力.[方法]采用 200 μL/L百里香酚浸泡蜂糖李果实 60 s,贮藏于(2.0±0.5)℃,检测其腐烂率、呼吸强度、硬度、外果皮h°、果肉h°和表面真菌多样性.[结果]贵州蜂糖李果实侵染性病害的致病真菌主要为葡萄孢属(Botrytis sp.)、镰刀菌属(Fusarium sp.)、青霉属(Penicillium sp.)和链格孢属(Alternaria sp.).百里香酚处理可改变蜂糖李果实表面真菌群落结构,降低采后贮藏阶段表面真菌群落丰度和复杂性.并通过抑制上述4种致病菌属的增殖以及果实呼吸强度的上升,延缓蜂糖李果实硬度、外果皮h°、果肉h°的下降,从而显著抑制蜂糖李果实腐烂率,保证果实品质.[结论]百里香酚处理能有效降低蜂糖李果实贮藏过程中真菌群落丰度和复杂性,并有效抑制相关致病菌增殖,从而有效维持蜂糖李果实采后品质.
Abstract
[Objective]This study aimed to improve the prevention and control of postharvest diseases of Fengtang plum fruit.[Methods]The fruits were soaked in 200 μL/L thymol for 60 s and stored at(2.0±0.5)℃.The decay rate,respiration intensity,firmness,h° of pericarp and flesh,and fungal community diversity were analyzed.[Results]High-throughput sequencing indicated that the primary rot-causing fungi on Fengtang plum fruits were Botrytis,Fusarium,Penicillium,and Alternaria.Thymol treatment reduced the diversity and abundance of microbial communities on the surface of Fengtang plum fruits.It inhibited the proliferation of the four main pathogenic fungal genera mentioned earlier and the increase in respiratory intensity of the fruits.Additionally,it delayed the decline in fruit firmness,h° of pericarp and flesh,significantly reducing the rate of decay in Fengtang plum fruits,so that maintaining Fengtang plum fruits quality.[Conclusion]Thymol treatment can effectively reduce the abundance and complexity of fungal community and inhibit the proliferation of related pathogens during storage of plum fruit,thereby effectively maintain the quality of plum fruit after harvest.
关键词
蜂糖李/百里香酚/采后贮藏/品质/生物多样性/高通量测序Key words
Fengtang plum/thymol/postharvest storage/quality/biodiversity/high-throughput sequencing引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据