Palynology of the recent intertidal sediments of the Southern Red Sea Coast of Saudi Arabia

Kumar, Arun

doi:10.1080/01916122.2020.1767708

Cited by 4 publications

(16 citation statements)

References 43 publications

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“…Tabuk province is characterized by diverse habitats, including coastal plains, valleys, dunes, wadis, salt pans (sabkhas), and mountain ridges [42]. These habitats represent biogeographic units that guarantee a perfect distribution of this region's flora and fauna life regime [10].…”

Section: Discussionmentioning

confidence: 99%

Floristic Diversity of Jabal Al-Ward, Southwest Tabuk Region, Kingdom of Saudi Arabia

et al. 2022

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Jabal Al-Ward is one of the Hijazi mountains situated between Al-Ulā and Al-Wajh, southwest Tabuk Province, Saudi Arabia’s northwesterly border region. It is considered the highest mountain in this area and is enriched in wildlife. For the first time, the present research aimed to investigate the floristic composition, phytogeographical distribution, and plant diversity in Jabal Al-Ward. One hundred ninety-eight species representing 47 plant families have been identified. The Asteraceae, Poaceae, and Fabaceae represented more than a third of the region’s floristic composition. The perennial species (53.5%) were dominant over the annuals (46.46%). This is a prominent feature in Jabal Al-Ward, where the perennial species may be more tolerant of climatic changeability than the annuals. Seven life form categories were found; therophytes (46.46%) showed to be the most common life form. In addition, there were four main phytogeographical groups: Mono-regional, Bi-regional, Pluri-regional, and Worldwide. The Mono-regional and Bi-regional categories had the highest participation, with 38.5% and 37.4%, respectively. Thirty-six species (18.2%) were found to be native to the Saharo-Arabian region. The Saharo-Arabian region was combined with eight more regions, including Saharo-Arabian/Sudano-Zambesian (12.6%), Irano-Turanian/Saharo-Arabian (9.1%), Mediterranean/Saharo-Arabian (5.6%), Irano-Turanian/Mediterranean/Saharo-Arabian (4.5%), Irano-Turanian/Saharo-Arabian/Sudano-Zambesian (2%), Euro-Siberian/Irano-Turanian/Mediterranean/Saharo-Arabian and Saharo-Arabian/Sudanian (1% each), Mediterranean/Saharo-Arabian/Sudano-Zambesian, and Irano-Turanian/Mediterranean/Saharo-Arabian/Saharo-Zambesian (0.5% each). The current study demonstrated the highest species richness compared to earlier research on various locations in Tabuk Province. In future work, the species and endemic richness along elevation gradients should be studied in Jabal Al-Ward. As well as the IUCN status of each taxon, the DNA barcoding of endangered species will be of great significance if applied in the surveyed area.

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Section: Discussionmentioning

confidence: 99%

Floristic Diversity of Jabal Al-Ward, Southwest Tabuk Region, Kingdom of Saudi Arabia

et al. 2022

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“…Additionally mineral microfossils like Ascidian and sponge spicules, and phytoliths were reported as well. Subsequently, new form taxa of NPP were proposed [18], followed by a morphometric study on foraminiferal palynomorphs [19], and a detailed morphological and taxonomic study of fungal remains were also published [20]. The present study compiles all the previously published palynomorph assemblages from five coastal environments, describes their proportional composition in various environments, discusses their sources, and environmental and palaeoecological implications.…”

Section: Introductionmentioning

confidence: 95%

“…Kholief [15] reported on palynology of mangrove sediments from the northern Red Sea coastal environments that reported few NPP. The present author published on palynology of the southern Red Sea coastal environments [16,17] reporting on in addition to pollen and spores, a wide range of NPP that included 1. dinoflagellate cysts and other algal remains, 2. fungal spores, hyphae, and fruit bodies, 3. microforaminiferal test linings, 4. thecamoebians, 5. tintinnomorphs and worms, and 6. 2 crustacean and annelid palynomorphs.…”

Section: Introductionmentioning

confidence: 99%

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Source and Distribution of Palynomorphs in Southern Red Sea Coastal Environments of Saudi Arabia; Their Palaeoenvironmental and Palaeoecological Inferences

Kumar

2024

Preprint

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Palynomorph assemblages and mineral microfossils from five southern Red Sea coastal environments were studied to demonstrate their distribution pattern and suggest their source. The environments studied were 1. mangrove swamp 2. middle Holocene paleochannel 3. algal mat, 4. Sabia Island coral reef, and intertidal zone. The samples studied were from the top 3 cm semi-consolidated sediments from various environments. Standard palynological maceration technique was used to isolate palynomorphs. These sediment samples are mainly clay and fine sand and yielded low numbers but high diversity of palynomorph assemblages. They are grouped into pollen and spores, dinoflagellate cysts, and algal remains, fungal spores, hyphae and fruit bodies, protists, and invertebrates. A few Ascidian and sponge spicules, and phytoliths (mineral microfossils) occur in the Sabia Island coral reef environment. The protists and invertebrate remain include microforaminifera, thecamoebians, tintinnomorphs, crustacean and annelid palynomorphs. The assemblage also includes six form taxa belonging to the form genera Katora and Mangrovia. These palynomorphs belong to both marine and terrestrial environments and are of autochthonous and allochthonous origins. The source and genetic relationship of each palynomorphs is discussed.

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“…Two of the largest Chotts in North Africa are Chott Melghir in Algeria and Chott Merouane in Tunisia [1]. These environments have their own biodiversity, represented by some algae and certain animals (such as crustaceans, subclass copepods, some terrestrial invertebrates, and reptiles) which are capable of withstanding these harsh conditions and able to flourish and grow within them [3]. Chotts can also form a regional food web for some migratory birds, and vegetation cover is limited to halophytic species [4].…”

Section: Introductionmentioning

confidence: 99%

Biochemical Profile and In Vitro Therapeutic Properties of Two Euhalophytes, Halocnemum strobilaceum Pall. and Suaeda fruticosa (L.) Forske., Grown in the Sabkha Ecosystem in the Algerian Sahara

et al. 2023

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This study reports the biochemical profile and in vitro biological activities of the aerial part of two shrubs: Halocnemum strobilaceum and Suaeda fruticosa, a halophytes species native to saline habitats. The biomass was evaluated by determining its physiological properties and approximate composition. Hydro-methanolic extracts from Halocnemum strobilaceum and Suaeda fruticosa have been investigated for the inhibition of bacterial growth, the protection of proteins (albumin) from denaturation, and cytotoxicity to hepatocellular carcinomas (Huh-7 and HepG2). Their antioxidant activity was evaluated by five tests, including one that examined their ability to inhibit hydrogen peroxide (H2O2)-induced hemolysis. The profile of their phenolic compounds was also determined. These two euhalophytes had a high moisture content, high levels of photosynthetic pigments, elevated levels of ash and protein, low oxidative damage indices, MDA (Malondialdehyde) and proline, and low lipids levels. Their content was also characterized by a moderate acidity with good electrical conductivity. They contained abundant levels of phytochemicals and varied phenolic contents. Reverse phase high performance liquid chromatography (RP-HPLC) analysis revealed the presence of caffeic acid, p-coumaric acid, rutin, and quercetin in both plant extracts. On the pharmaceutical level, the two euhalophytes had anti-inflammatory, antibacterial, antioxidant, and cytotoxic properties, and therefore it was recommended to isolate and identify biologically active compounds from these plants and evaluate them in vivo.

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Palynology of the recent intertidal sediments of the Southern Red Sea Coast of Saudi Arabia

Cited by 4 publications

References 43 publications

Floristic Diversity of Jabal Al-Ward, Southwest Tabuk Region, Kingdom of Saudi Arabia

Floristic Diversity of Jabal Al-Ward, Southwest Tabuk Region, Kingdom of Saudi Arabia

Source and Distribution of Palynomorphs in Southern Red Sea Coastal Environments of Saudi Arabia; Their Palaeoenvironmental and Palaeoecological Inferences

Biochemical Profile and In Vitro Therapeutic Properties of Two Euhalophytes, Halocnemum strobilaceum Pall. and Suaeda fruticosa (L.) Forske., Grown in the Sabkha Ecosystem in the Algerian Sahara

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