E-ISSN 2090-0503 | ISSN 1687-7497
 
2023, Vol: 19, Issue: 2
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Original Research 


Allelopathic effect of the green macroalgae Ulva fasciata (Delile) on potentially harmful algal bloom forming species

Shimaa El Shafay, atef abo shady, Laila mohamed, Shimaa Hosny , Wagdy Labib.

Abstract
The present study investigated the potential allelopathic effects of the living green marine macroalga Ulva fasciata growth of several marine microalgae. Skeletonema costatum (Bacillariophyta, centric diatom), Nitzschia longissima (pennate diatom), Scrippsiella trochoidea & Alexandrium minutum (Dinophyta), and Heterosigma akashiwo (Raphidophyta) all being previously identified as bloom forming species in Alexandria coastal water, Egypt. The results showed reduction of microalgal growth as a result of treatment with fresh thalli compared to the respective control treatments. In addition, macroalgal growth increased with the increasing of treatment time in a dependent way. The degree of dominance and concentrations of fatty acids oscillated in all treatments. The fatty acids composition showed 11 pattern of Fatty acids (9 saturated& 2 unsaturated). The major saturated acids arranged by decreasing order are C15.0, C14.0, C16.0 and C13.0.

Key words: Allelopathic, Ulva fasciata, blooms, Skeletonema costatum, Nitzschia longissima, Scrippsiella trochoidea, Alexandrium minutum fatty acids


 
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How to Cite this Article
Pubmed Style

Shafay SE, shady aa, mohamed L, SH, Labib W, . Allelopathic effect of the green macroalgae Ulva fasciata (Delile) on potentially harmful algal bloom forming species. Egypt. J. Exp. Biol. (Bot.). 2019; 15(2): 251-260. doi:10.5455/egyjebb.20190505044917

Web Style

Shafay SE, shady aa, mohamed L, SH, Labib W, . Allelopathic effect of the green macroalgae Ulva fasciata (Delile) on potentially harmful algal bloom forming species. https://www.egyseb.net//?mno=47183 [Access: December 06, 2023]. doi:10.5455/egyjebb.20190505044917

AMA (American Medical Association) Style

Shafay SE, shady aa, mohamed L, SH, Labib W, . Allelopathic effect of the green macroalgae Ulva fasciata (Delile) on potentially harmful algal bloom forming species. Egypt. J. Exp. Biol. (Bot.). 2019; 15(2): 251-260. doi:10.5455/egyjebb.20190505044917


Vancouver/ICMJE Style

Shafay SE, shady aa, mohamed L, SH, Labib W, . Allelopathic effect of the green macroalgae Ulva fasciata (Delile) on potentially harmful algal bloom forming species. Egypt. J. Exp. Biol. (Bot.). (2019), [cited December 06, 2023]; 15(2): 251-260. doi:10.5455/egyjebb.20190505044917


Harvard Style

Shafay, S. E., shady, a. a., mohamed, L., , S. H. ., Labib, W. & (2019) Allelopathic effect of the green macroalgae Ulva fasciata (Delile) on potentially harmful algal bloom forming species. Egypt. J. Exp. Biol. (Bot.), 15 (2), 251-260. doi:10.5455/egyjebb.20190505044917


Turabian Style

Shafay, Shimaa El, atef abo shady, Laila mohamed, Shimaa Hosny, Wagdy Labib, and . 2019. Allelopathic effect of the green macroalgae Ulva fasciata (Delile) on potentially harmful algal bloom forming species. THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany), 15 (2), 251-260. doi:10.5455/egyjebb.20190505044917


Chicago Style

Shafay, Shimaa El, atef abo shady, Laila mohamed, Shimaa Hosny, Wagdy Labib, and . "Allelopathic effect of the green macroalgae Ulva fasciata (Delile) on potentially harmful algal bloom forming species." THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany) 15 (2019), 251-260. doi:10.5455/egyjebb.20190505044917


MLA (The Modern Language Association) Style

Shafay, Shimaa El, atef abo shady, Laila mohamed, Shimaa Hosny, Wagdy Labib, and . "Allelopathic effect of the green macroalgae Ulva fasciata (Delile) on potentially harmful algal bloom forming species." THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany) 15.2 (2019), 251-260. Print. doi:10.5455/egyjebb.20190505044917


APA (American Psychological Association) Style

Shafay, S. E., shady, a. a., mohamed, L., , S. H. ., Labib, W. & (2019) Allelopathic effect of the green macroalgae Ulva fasciata (Delile) on potentially harmful algal bloom forming species. THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany), 15 (2), 251-260. doi:10.5455/egyjebb.20190505044917


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