Comparative effects of nano and bulk-Fe3O4 on the growth of cucumber (Cucumis sativus)

Konaté, Alexandre; Wang, Yaoyao; He, Xiao; Adeel, Muhammad; Zhang, Peng; Ma, Yuhui; Ding, Yayun; Zhang, Junzhe; Yang, Jie; Kizito, Simon; Rui, Yukui; Zhi-yong, Zhang

doi:10.1016/j.ecoenv.2018.09.053

Cited by 84 publications

(26 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Enhancement of bacterial growth rate with increasing magnetite concentration especially at magnetite to bacterial cells ratio C (3:1 w/w) reaching 5.07 fold higher than the control was supported by other workers who reported growth enhancement up to 500 ppm magnetite NPs (Kafayati et al 2013;Konate et al 2018). It was also proved that the 3:1 ratio (magnetite NPs: bacteria) resulted in the highest values of biomass recovery for the R. erythropolis FMF cells (Bardania et al 2013).…”

Section: Effect Of Fe 3 O 4 Nps On the Bacterial Growth Before And Dumentioning

confidence: 53%

Integration between bacterial consortium and magnetite (Fe3O4) nanoparticles for the treatment of oily industrial wastewater

El-Bestawy

El-Shatby

Eltaweil

2020

World J Microbiol Biotechnol

View full text Add to dashboard Cite

The study aimed to investigate the efficiency of exogenous bacterial consortium (Enterobacter cloacae and Pseudomonas otitidis) decorated (immobilized) with Fe 3 O 4 Nanoparticles for the treatment of petroleum hydrocarbon-contaminated wastewater. Glycine coated magnetite Nanoparticles (Fe 3 O 4 NPs) were prepared using reverse co-precipitation method and were characterized using X-ray diffraction, transmission and scanning electron microscopy and vibrating sample magnetometer. They were used to decorate exogenous bacterial consortium (Enterobacter cloacae and Pseudomonas otitidis) at 3 different Fe 3 O 4 /bacteria ratios (1:1, 1:3 and 3:1 w/w). Bioremediation of oil contaminated wastewater collected from one of the petroleum distribution companies, Alexandria was conducted for 168 h using Fe 3 O 4 /bacterial association at the best ratio (3:1) and compared with non-decorated consortium and the indigenous bacteria in the control. Analysis indicated crystalline structure of Fe 3 O 4 NPs with spherical particles (size: 15-20 nm) and superparamagnetic properties. Glycine modified-Fe 3 O 4 exhibited high ability to immobilize bacteria which acquired its magnetic properties. The highest coating efficiency (92%) was achieved at 3:1 Fe 3 O 4 /bacteria ratio after 1 h. This ratio positively affected bacterial growth reaching the highest growth rate (5.07 fold higher than the control) after 4 h. The highest removal efficiencies of the total suspended solids (TSS), chemical oxygen demands (COD), oil and grease (O&G) and total petroleum hydrocarbons (TPH) recording 96, 65.4, 83.9 and 85% reaching residual concentrations of 9.5, 598, 99 and 60 mg/l respectively were achieved after 4 h by the Fe 3 O 4-bacteria assembly. Compared with the maximum permissible limits of the tested parameters, TSS residue was highly compiled with its limit (50 mg/l), while COD, O&G and TPH were 7.5, 9.9, and 120-folds higher than their limits (100, 15 and 0.5 mg/l respectively). To the best of our knowledge it is first time to use integrated Enterobacter cloacae and Pseudomonas otitidis consortium decorated with Fe 3 O 4 NPs for the treatment of petroleum hydrocarbon-contaminated wastewater. The proposed system proved to be a very efficient, economical and applicable for the removal of the included contaminants in very short running time which increases its biotechnological added value.

show abstract

Section: Effect Of Fe 3 O 4 Nps On the Bacterial Growth Before And Dumentioning

confidence: 53%

Integration between bacterial consortium and magnetite (Fe3O4) nanoparticles for the treatment of oily industrial wastewater

El-Bestawy

El-Shatby

Eltaweil

2020

World J Microbiol Biotechnol

View full text Add to dashboard Cite

show abstract

“…This further proved that the introduction of iron oxide nanoparticles into plants could promote the distribution and accumulation of organic matter to underground parts to a certain extent and indirectly promote the growth of root tubers. Konate et al (2018) found that Fe 3 O 4 NPs could interact with plants to produce OH À free radicals, which could stimulate the degradation of pectin in the plant cell wall and relax the root cell wall to promote plant root growth. Like the study by Chen et al (2018) Giordani et al (2012) noted that Fe 3 O 4 NPs did not cause any harmful effects to tomato (Solanum lycopersicum) plants.…”

Section: Discussionmentioning

confidence: 99%

Stimulatory Effect of Fe3O4 Nanoparticles on the Growth and Yield of Pseudostellaria heterophylla via Improved Photosynthetic Performance

Li¹,

Ying-jie²,

Xie³

2021

horts

View full text Add to dashboard Cite

Nanomaterials have recently been used as growth stimulants to promote the production of crops in saline-alkali through root application. However, if applied through leaves, little is known about the effect of Fe3O4 nanoparticles (NPs) on the root growth and yield, especially for medicinal crops. To fill this gap, a single factor experiment was conducted to explore the effects of Fe3O4 NPs on growth, yield, the dry matter distribution, chlorophyll content, photosynthetic characteristics, chlorophyll fluorescence parameters, and polysaccharide content of Pseudostellaria heterophylla by foliar spraying under field conditions. Fe3O4 NPs (20–50 mg·L–1) significantly promoted growth, the dry matter distribution of root and root tuber yield per unit area. Fe3O4 NPs enhanced net photosynthetic rate (Pn) by increasing chlorophyll content. And Fe3O4 NPs increased the daily mean and peak value of Pn, and alleviated the phenomenon of “midday depression” by improving nonstomatal limitation. Chlorophyll fluorescence parameters indicating that Fe3O4 NPs promoted the photochemical activity of PSII and alleviated photoinhibition by enhancing the photochemical use of excess excitation energy. Gray correlation analysis showed that Fe3O4 NPs enhanced the adaptability of P. heterophylla photosynthesis to high temperatures and strong light. Of note, Fe3O4 NPs enhanced the polysaccharide content of the root tuber. Phytotoxic effect was recorded at high NPs (100 mg·L–1) doses. Collectively, Fe3O4 NPs could promote performance of P. heterophylla by improving photosynthetic performance, enhancing its adaptability to the environment, and increasing the distribution ratio of photosynthates to the underground part.

show abstract

“…In the nano-Fe 3 O 4 dosage of 2000 mg/L, there was a significant increase in biomass and antioxidant enzymes: POX and SOD. 53 The presence of cerium dioxide (CeO 2 ) NPs (200 mg/L −1 ) alleviated the damage to rice caused by both stressors [cadmium chloride (CdCl 2 ) and sodium chloride (NaCl)] indicated by the decreased proline level. In addition, the antioxidant protection systems were enabled by CeO 2 NPs to combat the oxidative stress caused by NaCl and CdCl 2 .…”

Section: Electrophoretic Behavior Of Soluble Proteinsmentioning

confidence: 99%

Effects of magnetite nanoparticles on physiological processes to alleviate salinity induced oxidative damage in wheat

et al. 2021

View full text Add to dashboard Cite

BACKGROUND: One of the major abiotic stressors that have a serious effect on plant growth and productivity worldwide is the salinity of soil or irrigation water. The effect of foliar application of magnetite nanoparticles (size = 22.05 nm) at different concentrations (0, 0.25, 0.5, and 1.0 ppm) was investigated to improve salinity tolerance in two wheat cultivars, namely, Misr1 (Tolerant) and Gimmeza11 (Sensitive). Moreover, toxicological investigations of magnetite oxide nanoparticle in Wistar albino rats were estimated. RESULTS:The magnetite nanoparticles positively affected growth, chlorophyll, and enzymatic antioxidants such as superoxide dismutase (SOD), stimulating reduced glutathione and improving the aggregation of several polypeptide chains that may be linked to the tolerance of saline stress. In contrast, magnetite nanoparticles reduced malondialdehyde (MDA). Inverse sequence-tagged repeat (ISTR) assay of DNA molecular marker showed the change in band numbers with the highest polymorphic bands with 90% polymorphism at primer F3, B5 and 20 positive bands in Gimmeza11 with 0.5 ppm magnetite nanoparticles. In the median lethal dose (LD 50 ) study, no rats died after the oral administration of magnetite nanoparticle at different doses. Therefore, the iron oxide nanoparticle was nontoxic when administered orally by gavage. CONCLUSION: Magnetite nanoparticles partially helped to alleviate the effects of salt stress by activating growth, chlorophyll content, SOD, glutathione, and soluble proteins in two wheat cultivars (Misr1 and Gimmeza11) and decreasing MDA content.

show abstract

Comparative effects of nano and bulk-Fe3O4 on the growth of cucumber (Cucumis sativus)

Cited by 84 publications

References 43 publications

Integration between bacterial consortium and magnetite (Fe3O4) nanoparticles for the treatment of oily industrial wastewater

Integration between bacterial consortium and magnetite (Fe3O4) nanoparticles for the treatment of oily industrial wastewater

Stimulatory Effect of Fe3O4 Nanoparticles on the Growth and Yield of Pseudostellaria heterophylla via Improved Photosynthetic Performance

Effects of magnetite nanoparticles on physiological processes to alleviate salinity induced oxidative damage in wheat

Contact Info

Product

Resources

About