Hassan Elhagag A, Mostafa Yasser S, Alamri Saad, Hashem Mohamed, Nafady Nivien A
Botany Department, Faculty of Science, Assiut University, Assiut 71516, Egypt.
Biology Department, Faculty of Science, King Khalid University, P.O. Box 10255, Abha 61321, Saudi Arabia.
Plants (Basel). 2021 Dec 12;10(12):2737. doi: 10.3390/plants10122737.
Recently, there have been urgent economic and scientific demands to decrease the use of chemical fungicides during the treatment of phytopathogens, due to their human health and environmental impacts. This study explored the biocontrol efficacy of novel and eco-friendly preen (uropygial) oil and endophytic in managing postharvest grey mold in strawberry fruit. The preen oil (25 μL/mL) showed high antifungal activity against . Str5 in terms of the reduction in the fungal radial growth (41.3%) and the fungal colony-forming units (28.6%) compared to the control. A new strain of B3 had a good potential to produce chitinase enzymes (3.69 ± 0.31 U/mL), hydrolytic lipase (10.65 ± 0.51 U/mL), and protease enzymes (13.28 ± 0.65 U/mL), which are responsible for the hydrolysis of the . Str5 cell wall and, consequently, restrict fungal growth. The in vivo experiment on strawberry fruit showed that preen (uropygial) oil reduced the disease severity by 87.25%, while the endophytic bacteria . B3 reduced it by 86.52%. This study reports the efficiency of individually applied bioagents in the control of phytopathogenic fungi for the first time and, consequently, encourages their application as a new and innovative strategy for prospective agricultural technology and food safety.
最近，由于化学杀菌剂对人类健康和环境的影响，在植物病原体处理过程中减少其使用的经济和科学需求变得紧迫。本研究探讨了新型环保尾脂腺油和内生菌在控制草莓果实采后灰霉病方面的生物防治效果。尾脂腺油（25 μL/mL）对Str5表现出高抗真菌活性，与对照相比，真菌径向生长减少了41.3%，真菌菌落形成单位减少了28.6%。一种新的B3菌株具有产生几丁质酶（3.69±0.31 U/mL）、水解脂肪酶（10.65±0.51 U/mL）和蛋白酶（13.28±0.65 U/mL）的良好潜力，这些酶负责水解Str5细胞壁，从而限制真菌生长。在草莓果实上进行的体内实验表明，尾脂腺油使病害严重程度降低了87.25%，而内生细菌B3使其降低了86.52%。本研究首次报道了单独应用生物制剂控制植物病原真菌的效率，因此鼓励将其作为一种新的创新策略应用于未来的农业技术和食品安全。
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