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. 2023 Jul 23;24(14):11833.
doi: 10.3390/ijms241411833.

The Antioxidant Potential of Tomato Plants (Solanum lycopersicum L.) under Nano-ZnO Treatment

Katarzyna Włodarczyk  1 , Beata Smolińska  1 , Iwona Majak  2
Affiliations

The Antioxidant Potential of Tomato Plants (Solanum lycopersicum L.) under Nano-ZnO Treatment

Katarzyna Włodarczyk et al. Int J Mol Sci. .

Abstract

Tomato (Solanum lycopersicum L.) is one of the most valuable horticulture crops, consumed in both its raw and processed forms. To increase yield and efficiency, conventional and organic fertilizers are utilized in modern agriculture. Traditional fertilizers increase crop yield but are harmful to the environment. These circumstances motivate the pursuit of an alternate solution. The purpose of this research was to investigate how the application of nanoparticles (nano-ZnO) combined with conventional fertilizer influence tomato plants' development, including the antioxidant potential of cultivated plants. Three factors such as different types of cultivars, dosage of applied nano-ZnO solution and the method of nanoparticles application were implemented. Multiple analysis of selected antioxidants content and their activities such as malondialdehyde (MDA), flavonoids, polyphenols, ascorbic acid, peroxidase (POX), superoxide dismutase (SOD) or catalase (CAT) were analyzed. The obtained data exhibited that all examined parameters were strongly dependent on three implemented factors: concentration of nano-ZnO suspension, the type of cultivated tomato and the method of nanoparticles application. For instance, the accumulation of MDA in cultivated plants was different among plants under nanoparticles treatment, but in one specific case (Malinowy Bossman cultivar treated with 50 mg/L nano-ZnO suspension) the content of this marker was decreased by 34% in comparison to the corresponding control. Nevertheless, the results presented in this study showed that the usage of certain doses of nano-ZnO suspension may increase the antioxidant potential of tomato plants.

Keywords: antioxidants; nano-ZnO; nanoparticles; tomatoes.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Malondialdehyde (MDA) content in tomato leaves of three cultivars. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 2
Figure 2
Malondialdehyde (MDA) content in tomato leaves of Maskotka cultivar. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 3
Figure 3
Total free radical scavenging capacity in tomato leaves of three cultivars. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 4
Figure 4
Total free radical scavenging capacity in tomato leaves of Maskotka cultivar. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 5
Figure 5
Chlorophyll (chl a and chl b) content in tomato leaves of three cultivars. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 6
Figure 6
Chlorophyll (chl a and chl b) content in tomato leaves of Maskotka cultivar. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 7
Figure 7
Carotenoid content in tomato leaves of three cultivars. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 8
Figure 8
Carotenoid content in tomato leaves of Maskotka cultivar. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 9
Figure 9
Total phenolic content in tomato leaves of three cultivars. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 10
Figure 10
Total phenolic content in tomato leaves of Maskotka cultivar. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 11
Figure 11
Total flavonoid content in tomato leaves of three cultivars. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 12
Figure 12
Total flavonoid content in tomato leaves of Maskotka cultivar. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 13
Figure 13
Ascorbic acid content in tomato leaves of Maskotka cultivar. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 14
Figure 14
Pyrogallol peroxidase (POX) activity in tomato leaves of three cultivars. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 15
Figure 15
Pyrogallol peroxidase (POX) activity in tomato leaves of Maskotka cultivar. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 16
Figure 16
Superoxide dismutase (SOD) activity in tomato leaves of three cultivars. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 17
Figure 17
Superoxide dismutase (SOD) activity in tomato leaves of Maskotka cultivar. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 18
Figure 18
The analysis and comparison of the catalase activity in tomato leaves of three cultivars. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 19
Figure 19
The analysis of catalase activity in tomato leaves of Maskotka cultivar. Vertical bars are used to display all data, which are the means of 3 replicates (±SD). Different letters indicate the significant differences for p-value ≤ 0.05.
Figure 20
Figure 20
The graphic illustration of the scheme of plants’ treatments.
See this image and copyright information in PMC

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