College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
College of Food Science and Technology, Nanjing University of Finance and Economics, Nanjing 210023, China.
Molecules. 2021 Nov 16;26(22):6905. doi: 10.3390/molecules26226905.
The soft rot disease caused by is an important disease in cherry tomato fruit. In this study, the effect of iturin A on soft rot of cherry tomato and its influence on the storage quality of cherry tomato fruit were investigated. The results showed that 512 μg/mL of iturin A could effectively inhibit the incidence of soft rot of cherry tomato fruit. It was found that iturin A could induce the activity of resistance-related enzymes including phenylalanine ammonia lyase (PAL), polyphenol oxidase (PPO), peroxidase (POD), glucanase (GLU), and chitinase (CHI), and active oxygen-related enzymes including ascorbate peroxidases (APX), superoxide dismutases (SOD), catalases (CAT), and glutathione reductase (GR) of cherry tomato fruit. In addition, iturin A treatment could slow down the weight loss of cherry tomato and soften the fruit. These results indicated that iturin A could retard the decay and improve the quality of cherry tomato fruit by both the inhibition growth of and the inducing the resistance.
软腐病由 引起，是樱桃番茄果实的重要病害。本研究探讨了伊枯草菌素 A 对樱桃番茄软腐病的防治效果及其对果实贮藏品质的影响。结果表明，512μg/mL 的伊枯草菌素 A 可有效抑制樱桃番茄果实软腐病的发生。研究还发现，伊枯草菌素 A 可诱导苯丙氨酸解氨酶（PAL）、多酚氧化酶（PPO）、过氧化物酶（POD）、葡聚糖酶（GLU）和几丁质酶（CHI）等与抗性相关的酶，以及抗坏血酸过氧化物酶（APX）、超氧化物歧化酶（SOD）、过氧化氢酶（CAT）和谷胱甘肽还原酶（GR）等活性氧相关酶的活性，从而延缓樱桃番茄果实的失重和软化。这些结果表明，伊枯草菌素 A 可以通过抑制 生长和诱导抗性来延缓腐烂，提高樱桃番茄果实的品质。
