Have a personal or library account? Click to login
Antifouling activity of bacterial extracts associated with soft coral and macroalgae from the Red Sea Cover

Antifouling activity of bacterial extracts associated with soft coral and macroalgae from the Red Sea

Oceanological and Hydrobiological Studies
Volume 51 (2022): Issue 4 (December 2022)
By: Rabab Ibrahim Tunkal,  Mamdoh T. Jamal,  Idris Abdulrahman,  Arulazhagan Pugazhendi and  Sathianeson Satheesh  
Open Access
|Jan 2023

Figures & Tables

Figure 1

Phylogenetic tree showing the two organisms with other related species. The organisms from this study are highlighted in blue, while the red symbol was used to show the bootstrap values.
Phylogenetic tree showing the two organisms with other related species. The organisms from this study are highlighted in blue, while the red symbol was used to show the bootstrap values.

Figure 2

Bacterial growth inhibitory activity of the CSE of MBR1
Bacterial growth inhibitory activity of the CSE of MBR1

Figure 3

Bacterial growth inhibitory activity of the CSE of MBR4
Bacterial growth inhibitory activity of the CSE of MBR4

Figure 4

Percentage of biofilm inhibition activity of the extracts from MBR1 and MBR4 against the biofilm bacteria
Percentage of biofilm inhibition activity of the extracts from MBR1 and MBR4 against the biofilm bacteria

Figure 5

Toxicity of CSE extracted from the bacterial strains against barnacle larvae
Toxicity of CSE extracted from the bacterial strains against barnacle larvae

Figure 6

Antilarval settlement activity of CSE against cyprid-stage larvae of barnacles
Antilarval settlement activity of CSE against cyprid-stage larvae of barnacles

Figure 7

GC-MS spectrum of CSE extracted from the bacterial strain MBR1
GC-MS spectrum of CSE extracted from the bacterial strain MBR1

Figure 8

GC-MS spectrum of CSE extracted from the bacterial strain MBR4
GC-MS spectrum of CSE extracted from the bacterial strain MBR4

Compounds detected in the CSE of MBR1

Compound nameRT (min)Peak area
Hexane, 2,2-dimethyl-2.0435682084
n-Tridecan-1-ol7.0465873147
3-Chloropropionic acid, heptadecyl ester8.1762029795
Hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester8.62713557111
Hexacontane8.8085252629
Tetrapentacontane, 1,54-dibromo-9.0272603872
Tetrapentacontane, 1,54-dibromo-9.24136789
Tetrapentacontane9.4121932874
Tetrapentacontane9.83213033013

Compounds detected in the CSE of MBR4

Compound nameRT (min)Peak area
Pentane, 2,2,4-trimethyl-2.044716273
Cyclopropane, 1-(1-hydroxy-1-heptyl)-2-methylene-3-pentyl-8.5423254671
Octadecanoic acid, 2,3-dihydroxypropyl ester8.6335949198
(7R,8R)-cis-anti-cis-Tricyclo[7.3.0.0(2,6)]dodecane-7,8-diol8.7836609750
Tetrapentacontane, 1,54-dibromo-8.9457398782
7-Hexyltridecan-1-ol9.2583273783
9,12,15-Octadecatrienoic acid, 2-phenyl-1,3-dioxan-2-yl ester, (Z,Z,Z)-9.354608587
Tetrapentacontane, 1,54-dibromo-9.4264100361
17-Pentatriacontene9.5493437915
2H-Pyran-2-one, 5-ethylidenetetrahydro-4-(2-hydroxyethyl)-9.7773956877

Post hoc Tukey test results (approximate probabilities) for the antifouling activity of CSE extracted from three bacterial strains against biofilm-forming bacteria and barnacle larvae

Bacterial extractAntibiofilm activityAntilarval selement activity
V. harveyiPlanomicrobium sp.Cyprid larvae
ControlMBR1<0.001<0.01<0.001
MBR4<0.001<0.001<0.001
MBR1MBR40.0670.8080.942
DOI: https://doi.org/10.26881/oahs-2022.4.02 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X
Journal RSS Feed
Language: English
Page range: 325 - 336
Submitted on: Oct 10, 2022
Accepted on: Nov 17, 2022
Published on: Jan 18, 2023
Published by: University of Gdańsk
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
antifouling,
antibiofilm,
antisettlement,
marine bacteria,
bioactive compounds,
Red Sea
Related subjects:
Chemistry,
Chemistry, other,
Geosciences,
Geosciences, other,
Life sciences,
Life sciences, other

© 2023 Rabab Ibrahim Tunkal, Mamdoh T. Jamal, Idris Abdulrahman, Arulazhagan Pugazhendi, Sathianeson Satheesh, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Previous articleVolume 51 (2022): Issue 4 (December 2022)Next article