Evaluation of the antimicrobial activity and chickpea growth stimulation effects of green synthesized zinc oxide nanoparticles

被引:1
|
作者
Kaningini, Amani Gabriel [1 ,2 ]
Motlhalamme, Thobo [1 ,2 ]
More, Garland Kgosi [3 ,4 ]
Azizi, Shohreh [1 ]
Mohale, Keletso Cecilia [2 ]
Maaza, Malik [1 ]
机构
[1] Univ South Africa, Coll Grad Studies, UNESCO UNISA Africa Chair Nanosci & Nanotechnol, Pretoria ZA-392, South Africa
[2] Univ South Africa, Coll Agr & Environm Sci, Dept Agr & Anim Hlth, Private Bag X06, ZA-1710 Johannesburg, South Africa
[3] Univ South Africa, Coll Agr, Private Bag X06, ZA-1710 Florida, South Africa
[4] Univ South Africa, Environm Sci Labs, Private Bag X06, ZA-1710 Florida, South Africa
来源
PLANT STRESS | 2024年 / 12卷
基金
新加坡国家研究基金会;
关键词
Zno nanoparticles; Bush tea; Chickpea; Antimicrobial activity; Growth stimulation; nanofertilizer; ZNO NANOPARTICLES; PLANT-EXTRACTS;
D O I
10.1016/j.stress.2024.100442
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Green synthesized nanoparticles are believed to alleviate the detrimental effects of chemical fertilizers and the multidrug resistance of various microbial strains. This study evaluates the use of bush tea-mediated zinc oxide nanoparticles (ZnO NPs) for chickpea fertilization and assesses their cytotoxicity, antioxidant and antibacterial activity. The study demonstrated that the application of ZnO NPs improved the number of leaves, nodules, biomass and yield of chickpea cultivars under glasshouse conditions. The authors suggest that biosynthesized ZnO NPs are a good plant growth stimulant. The control with no nanoparticles application, had higher values of photosynthetic rate and water use efficiency in the Desi genotype whereas for the Kabuli genotype, 25 mg/L showed higher values of stomatal conductance and transpiration efficiency, while 15 mg/L gave the highest water use efficiency and photosynthetic rate. Furthermore, the inhibitory activities of bacteria were reported in which E. coli and S. aureus were the most sensitive bacterial strains. The ZnO NPs also quenched free radicals that demonstrate antioxidant activity. Thus, they can be beneficial to both plants and humans as they reduce oxidative stress that can cause diseases. Furthermore, toxicity to cells was evaluated and ZnO NPs were less toxic to the studied cells with IC50 values of 16.17 mu g/mL and 21.30 mu g/mL against lung cancer and embryonic cell lines. Thus, the use of ZnO nanoparticles with antimicrobial activity could help fight against several diseases attacking humans and plants.
引用
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页数:8
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