College of Food Science and Biotechnology, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Gongshang University, Hangzhou, P. R. China.
J Sci Food Agric. 2021 Jun;101(8):3176-3185. doi: 10.1002/jsfa.10946. Epub 2020 Dec 2.
Plums tend to experience a reduction in fruit quality due to ripening and they deteriorate quickly during storage at room temperature. Benzothiadiazole (BTH) is a plant elicitor capable of inducing disease resistance in many crops. In this study, the effect of BTH treatment on fruit ripening, fruit quality, and anthocyanin biosynthesis in 'Taoxingli' plum was investigated.
The results showed that BTH treatment could accelerate fruit ripening without affecting the incidence of fruit decay or the shelf life. Benzothiadiazole treatment improved the quality and consumer acceptability of 'Taoxingli' plums during storage by increasing the sweetness, red color formation, and the concentration of healthy antioxidant compounds. The BTH treatment could also effectively promote the biosynthesis of anthocyanin by enhancing the enzyme activities of phenylalanine ammonia-lyase (PAL), dihydroflavonol 4-reductase (DFR), anthocyanidin synthase (ANS), and uridine diphosphate flavonoid 3-O-glucosyltransferase (UFGT) and up-regulating the gene expressions of PsPAL, PsCHI, PsDFR, PsANS, and PsUFGT during storage.
Benzothiadiazole treatment could be a potential postharvest technology for improving fruit quality and consumer acceptability in harvested plum fruit. © 2020 Society of Chemical Industry.
李梅在成熟过程中果实品质下降，在室温下贮藏时迅速劣变。苯并噻二唑（BTH）是一种植物激发子，能够诱导许多作物产生抗病性。本研究探讨了 BTH 处理对‘套桃李’李果实成熟、果实品质和花色苷生物合成的影响。
结果表明，BTH 处理可以加速果实成熟，而不影响果实腐烂率或货架期。BTH 处理通过提高果实甜度、形成红色、增加健康抗氧化化合物的浓度，改善了‘套桃李’李在贮藏期间的品质和消费者接受度。BTH 处理还可以通过增强苯丙氨酸解氨酶（PAL）、二氢黄酮醇 4-还原酶（DFR）、花青素合酶（ANS）和尿苷二磷酸葡萄糖黄酮 3-O-葡萄糖基转移酶（UFGT）的酶活性，以及在贮藏过程中上调 PsPAL、PsCHI、PsDFR、PsANS 和 PsUFGT 的基因表达，有效地促进花色苷的生物合成。
BTH 处理可能是一种提高采后李果实品质和消费者接受度的潜在采后技术。© 2020 英国化学学会。
