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Defense responses of the green microalgae Chlorella vulgaris to the vanadium pentoxide nanoparticles Cover

Defense responses of the green microalgae Chlorella vulgaris to the vanadium pentoxide nanoparticles

Oceanological and Hydrobiological Studies
Volume 52 (2023): Issue 4 (December 2023)
By: Hanifeh Akbarian Kalehjahi,  Morteza Kosari-Nasab,  Mojtaba Amini and  Ali Movafeghi  
Open Access
|Dec 2023

Figures & Tables

Figure 1

(A) XRD graph, (B) FT-IR data, (C) EDS and (D) DLS spectrum of the synthesized V2O5 NPs approving their precise chemical structure
(A) XRD graph, (B) FT-IR data, (C) EDS and (D) DLS spectrum of the synthesized V2O5 NPs approving their precise chemical structure

Figure 2

(A) SEM and (B) TEM micrographs displaying the morphology and size of the V2O5
(A) SEM and (B) TEM micrographs displaying the morphology and size of the V2O5

Figure 3

The concentration-dependent negative influences of V2O5 NPs on (A) cell number, and (B) fresh weight of C. vulgaris. The results are represented as mean averages ± SE (n = 3)
The concentration-dependent negative influences of V2O5 NPs on (A) cell number, and (B) fresh weight of C. vulgaris. The results are represented as mean averages ± SE (n = 3)

Figure 4

(A) Flow cytometry of untreated medium showed nearly 99% cell viability. (B) Application of 200 mg l-1 V2O5 NPs for 96 h resulted in viability lessening of C. vulgaris to ~91%.
(A) Flow cytometry of untreated medium showed nearly 99% cell viability. (B) Application of 200 mg l-1 V2O5 NPs for 96 h resulted in viability lessening of C. vulgaris to ~91%.

Figure 5

SEM micrographs of control and treated algal cells. (A, B) Intact turgescent globular control cells. (C, D) Slight plasmolysis of cells after treatment with 100 mg l-1 of NPs and (E, F) notable shrinkage of cells after using 200 mg l-1 V2O5 NPs
SEM micrographs of control and treated algal cells. (A, B) Intact turgescent globular control cells. (C, D) Slight plasmolysis of cells after treatment with 100 mg l-1 of NPs and (E, F) notable shrinkage of cells after using 200 mg l-1 V2O5 NPs

Figure 6

Effects of different concentrations of V2O5 NPs on photosynthetic pigment contents in C. vulgaris after 96 h of exposure. Different letters show significant differences according to Duncan’s test at p < 0.05. The results are shown as mean averages ± SE (n = 3).
Effects of different concentrations of V2O5 NPs on photosynthetic pigment contents in C. vulgaris after 96 h of exposure. Different letters show significant differences according to Duncan’s test at p < 0.05. The results are shown as mean averages ± SE (n = 3).

Figure 7

Influence of different concentrations of V2O5 NPs on the (A) phenol and (B) flavonoid content of C. vulgaris after 96 h of exposure. Different letters indicate significant differences according to Duncan’s test at p < 0.05. The results are presented as mean averages ± SE (n = 3).
Influence of different concentrations of V2O5 NPs on the (A) phenol and (B) flavonoid content of C. vulgaris after 96 h of exposure. Different letters indicate significant differences according to Duncan’s test at p < 0.05. The results are presented as mean averages ± SE (n = 3).

Figure 8

Activity of (A) SOD, (B) CAT and (C) APX in algal cells after 96 h exposure to V2O5 NPs Different letters indicate significant differences according to Duncan’s test at p < 0.05. The results are displayed as mean averages ± SE (n = 3).
Activity of (A) SOD, (B) CAT and (C) APX in algal cells after 96 h exposure to V2O5 NPs Different letters indicate significant differences according to Duncan’s test at p < 0.05. The results are displayed as mean averages ± SE (n = 3).
DOI: https://doi.org/10.26881/oahs-2023.4.06 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X
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Language: English
Page range: 446 - 460
Submitted on: Apr 12, 2023
Accepted on: Jun 13, 2023
Published on: Dec 31, 2023
Published by: University of Gdańsk
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
Algae,
VO nanoparticles,
Oxidative stress,
Antioxidant enzymes
Related subjects:
Chemistry,
Chemistry, other,
Geosciences,
Geosciences, other,
Life sciences,
Life sciences, other

© 2023 Hanifeh Akbarian Kalehjahi, Morteza Kosari-Nasab, Mojtaba Amini, Ali Movafeghi, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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