scholarly journals Bioactive marine metabolites derived from the Persian Gulf compared to the Red Sea: similar environments and wide gap in drug discovery

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11778
Author(s):  
Reham K. Abuhijjleh ◽  
Samiullah Shabbir ◽  
Ahmed M. Al-Abd ◽  
Nada H. Jiaan ◽  
Shahad Alshamil ◽  
...  
Keyword(s):  
Red Sea ◽  
Marine Environment ◽  
Persian Gulf ◽  
Biological Activities ◽  
Bioactive Metabolites ◽  
Bioactive Materials ◽  
Gulf Of Oman ◽  
Marine Life ◽  
Chemical Structures ◽  
The Persian Gulf

Marine life has provided mankind with unique and extraordinary chemical structures and scaffolds with potent biological activities. Many organisms and secondary metabolites derived from fungi and symbionts are found to be more environmentally friendly to study than the marine corals per se. Marine symbionts such as Aspergillus sp., a fungus, which can be isolated and grown in the lab would be a potential and continuous source of bioactive natural compounds without affecting the marine environment. The Red Sea is known for its biodiversity and is well-studied in terms of its marine-derived bioactive metabolites. The harsh environmental conditions lead to the development of unique metabolic pathways. This, in turn, results in enhanced synthesis and release of toxic and bioactive chemicals. Interestingly, the Persian Gulf and the Gulf of Oman carry a variety of environmental stresses, some of which are similar to the Red Sea. When compared to the Red Sea, the Persian Gulf has been shown to be rich in marine fungi as well, and is, therefore, expected to contain elaborate and interesting bioactive compounds. Such compounds may or may not be similar to the ones isolated from the Red Sea environment. Astoundingly, there are a very limited number of studies on the bioactive portfolio of marine-derived metabolites from the Persian Gulf and the Gulf of Oman. In this perspective, we are looking at the Red Sea as a comparator marine environment and bioactive materials repertoire to provide a futuristic perspective on the potential of the understudied and possibly overlooked bioactive metabolites derived from the marine life of the Persian Gulf and the Gulf of Oman despite its proven biodiversity and harsher environmental stress.

scholarly journals The life cycle of submesoscale eddies generated by topographic interactions

2019 ◽  
Author(s):  
Mathieu Morvan ◽  
Pierre L'Hégaret ◽  
Xavier Carton ◽  
Jonathan Gula ◽  
Clément Vic ◽  
...  
Keyword(s):  
Life Cycle ◽  
Red Sea ◽  
Persian Gulf ◽  
Sea Water ◽  
Mesoscale Eddies ◽  
Shear Instability ◽  
Gulf Of Oman ◽  
Coherent Vortices ◽  
Persian Gulf Water ◽  
The Persian Gulf

Abstract. The Persian Gulf Water and Red Sea Water are salty and dense waters recirculating at subsurface in the Gulf of Oman and the Gulf of Aden respectively, under the influence of mesoscale eddies which dominate the surface flow in both semi-enclosed basins. In situ measurements combined with altimetry indicate that the Persian Gulf Water is driven by mesoscale eddies in the form of filaments and submesoscale structures. In this paper, we study the formation and the life cycle of intense submesoscale vortices and their impact on the spread of Persian Gulf Water and Red Sea Water. We use a three-dimensional hydrostatic model with submesoscale-resolving resolution to study the evolution of submesoscale vortices. Our configuration is an idealized version of the Gulf of Oman and Aden: a zonal row of mesoscale vortices interacting with north and south topographic slopes. Intense submesoscale vortices are generated in the simulations along the continental slopes due to two different mechanisms. The first mechanism is due to frictional generation of vorticity in the bottom boundary layer, which detaches from the topography, forms an unstable vorticity filament, and undergoes horizontal shear instability that leads to the formation of submesoscale coherent vortices. The second mechanism is inviscid and implies arrested topographic Rossby waves breaking and forming submesoscale coherent vortices where a mesoscale anticyclone interacts with the topographic slope. Submesoscale vortices subsequently drift away, merge and form larger vortices. They can also pair with opposite signed vortices and travel across the domain. They can weaken or disappear via several mechanisms, in particular fusion into the larger eddies or erosion on the topography. Particle patches are advected and sheared by vortices and are entrained into filaments. Their size first grows as the square root of time, a signature of the merging processes, then it increases linearly with time, corresponding to their ballistic advection by submesoscale eddies. On the contrary, witout intense submesoscale eddies, particles are mainly advected by mesoscale eddies; this implies a weaker dispersion of particles than in the previous case. This shows the important role of submesoscale eddies in spreading Persian Gulf Water and Red Sea Water.

Chthamalid barnacles (Cirripedia: Thoracica) of the Persian Gulf and Gulf of Oman, Iran

2010 ◽  
Vol 91 (3) ◽  
pp. 745-753 ◽  
Author(s):  
Adnan Shahdadi ◽  
Alireza Sari
Keyword(s):  
Coastal Zone ◽  
Red Sea ◽  
Persian Gulf ◽  
Gulf Of Aden ◽  
Habitat Types ◽  
Gulf Of Oman ◽  
The World ◽  
The Persian Gulf ◽  
Key Characters

In the present study, chthamalid barnacles of the Persian Gulf and Gulf of Oman were collected from the coastal zone of Iran. Extensive collecting of different habitat types resulted in finding two species: Chthamalus barnesi and Microeuraphia permitini. In addition to the Persian Gulf and Gulf of Oman, the former species was also collected from the Red Sea and Gulf of Aden. Both species are described and compared for their key characters with some representative members of the genera from other parts of the world.

Three new Canuellidae (Copepoda: Canuelloida) from Iran

Zootaxa ◽  
2018 ◽  
Vol 4446 (4) ◽  
pp. 401 ◽  
Author(s):  
F. NAZARI ◽  
O. MIRSHAMSI ◽  
A. SARI ◽  
M. ALIABADIAN ◽  
P. MARTÍNEZ ARBIZU
Keyword(s):  
New Species ◽  
Persian Gulf ◽  
Intertidal Zone ◽  
Male Genitalia ◽  
Bohai Sea ◽  
Gulf Of Oman ◽  
The Family ◽  
Three New Species ◽  
The Persian Gulf ◽  
Number Of Segments

A survey of copepods from intertidal zone of the Persian Gulf and the Gulf of Oman resulted in discovery of three new species belonging to the family Canuellidae Lang, 1944. This work contributes to the final aim to describe meiobenthic copepods from this region and is the first description of meiobenthic copepods from Iranian coastline. The new species belong to the genera Brianola Monard, 1926, Canuella, T. & A. Scott, 1893, and Scottolana Huys, 2009. Compared to other congeners, Brianola haliensis sp. nov. is unique in the armature of the first leg, number of segments and setation of the antennary endopod and exopod. Canuella persica sp. nov. is easily distinguishable from its congeners by the shape of furcal rami and male genitalia. Scottolana gomezi sp. nov. is assigned to the longipes-group by the presence of two and three post-genital somites in the female and male, respectively. It is closely related to S. geei (Mu & Huys, 2004) recorded from the Bohai Sea, China, but can be distinguished by its eight-segmented antennary exopod, mouthparts setation, and shape of the furcal rami. 

scholarly journals New records and distribution extension of Nassarius persicus (Martens, 1874) and N. tadjallii Moolenbeek, 2007 (Mollusca: Gastropoda: Nassariidae) to India

2021 ◽  
Vol 13 (7) ◽  
pp. 18846-18852
Author(s):  
Sayali Nerurkar ◽  
Deepak Apte
Keyword(s):  
Persian Gulf ◽  
New Records ◽  
Gulf Of Oman ◽  
Gulf Of Kachchh ◽  
Ecological Information ◽  
Taxonomic Descriptions ◽  
New Findings ◽  
The Persian Gulf

We report new findings of live specimens of Nassarius persicus (Martens, 1874) and N. tadjallii Moolenbeek, 2007, extending their range to the Gulf of Kachchh, Gujarat, India. The known distribution of both species was limited: N. persicus was distributed in the Persian Gulf, Gulf of Oman, and Karachi in Pakistan; N. tadjallii was reported from the Persian Gulf and the Gulf of Oman. We also provide comprehensive taxonomic descriptions of both species, along with additional morphological and ecological information.

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