The novelty of the present research is conducting a new method in the systemic resistance of plant diseases by using distinct marine extracts. The ability of two octopus extracts to reduce the wilt disease caused by Fusarium oxysporum was observed. The applied methods are soaked roots (SR) and foliar shoots (FS). The antioxidant enzyme activities, percent disease index (PDI), and growth parameters were measured. In vitro antifungal potential of the octopus extracts against F. oxysporum was examined. The obtained result shows that SR extracts reduced PDI. Additionally, all the tested treatments promoted the growth and photosynthetic pigments of the infected plants. SR (in ethanolic extracts) was the most prominent inducer which offered a high advancement in the total soluble protein contents. Also, SR (in methanolic extracts) was the most suitable inducer which provided a very necessary development not only in the total phenol but also in the peroxidase (POD) and polyphenol oxidase (PPO) activities. GC-MS investigation of the octopus extracts exhibited that the compounds which possess antifungal activity were furoscrobiculin B and/or eugenol. They demonstrated a notable antifungal potential against F. oxysporum with a maximum activity of 38.5 and 12.7 mm ZOI after the treatment with the ethanolic and methanolic extract, respectively. FTIR results illustrated the functional group of the compound responsible for the antifungal activity. Additionally, an atomic absorption result reveals that there are traces of metals detected such as Pb, Ag, Cu, Zn, and Mg. The antifungal activity was decreased as the concentrations were reduced. Accordingly, the present extracts may be used as the vital agents in the agricultural field to restrain the plant pathogenic fungi, especially F. oxysporum from a proliferation.

本研究的新颖性正在通过使用不同的海洋提取物进行植物病害的系统抗性的新方法。观察到两种章鱼提取物具有减轻由尖孢镰刀菌引起的枯萎病的能力。应用的方法是浸根（SR）和叶梢（FS）。测量了抗氧化酶活性，疾病百分率指数（PDI）和生长参数。章鱼提取物对尖孢镰刀菌的体外抗真菌潜力被检查了。获得的结果表明，SR提取了减少的PDI。另外，所有测试的处理均促进了受感染植物的生长和光合色素。SR（在乙醇提取物中）是最突出的诱导剂，它在总可溶性蛋白含量方面具有很高的进步。同样，SR（在甲醇提取物中）是最合适的诱导剂，不仅在总酚中而且在过氧化物酶（POD）和多酚氧化酶（PPO）活性方面都提供了非常必要的发展。GC-MS对章鱼提取物的研究表明，具有抗真菌活性的化合物是呋喃丁草双酚B和/或丁子香酚。他们显示出对尖孢镰刀菌（F.oxysporum）具有显着的抗真菌潜力乙醇提取物和甲醇提取物处理后的最大活性分别为38.5和12.7 mm ZOI。FTIR结果说明了负责抗真菌活性的化合物的官能团。另外，原子吸收结果表明，检测到痕量的金属，例如Pb，Ag，Cu，Zn和Mg。随着浓度的降低，抗真菌活性降低。因此，本发明的提取物可用作农业领域中的重要药剂，以抑制植物病原真菌，尤其是尖孢镰刀菌的增殖。