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Journaux
Oceanological and Hydrobiological Studies
Édition 52 (2023): Edition 4 (December 2023)
Accès libre
Defense responses of the green microalgae
Chlorella vulgaris
to the vanadium pentoxide nanoparticles
Hanifeh Akbarian Kalehjahi
Hanifeh Akbarian Kalehjahi
,
Morteza Kosari-Nasab
Morteza Kosari-Nasab
,
Mojtaba Amini
Mojtaba Amini
et
Ali Movafeghi
Ali Movafeghi
| 31 déc. 2023
Oceanological and Hydrobiological Studies
Édition 52 (2023): Edition 4 (December 2023)
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Article Category:
Original Research Paper
Publié en ligne:
31 déc. 2023
Pages:
446 - 460
Reçu:
12 avr. 2023
Accepté:
13 juin 2023
DOI:
https://doi.org/10.26881/oahs-2023.4.06
© 2023 Hanifeh Akbarian Kalehjahi et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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
Figure 2
(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)
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%.
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
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).
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).
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).