Publications by authors named "Mahmoud O Hassan"

Article Synopsis
  • This study addresses the taxonomic complexity of the Tourn. ex L. genus in Egypt, aiming to identify species and analyze their fatty acid profiles as a means of classification when reproductive cones are absent.
  • Researchers collected 120 specimens from 20 different habitats, examining 30 vegetative traits and 72 reproductive traits; they identified five species in the Egyptian flora, with South Sinai being the main diversity hotspot.
  • The study found significant variations in fatty acid content among species, demonstrating that both morphological traits and lipid profiles can serve as effective tools for species identification in the absence of reproductive cones.
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Article Synopsis
  • Some plant species can create new microenvironments that significantly affect the cover and diversity of other plants in urban settings.
  • This study focused on the impact of a specific species (L.) on urban vegetation by analyzing 70 plots with and without this species, measuring factors like species richness and biomass.
  • Findings showed that the presence of the species led to decreased cover and diversity of associated weeds, potentially due to reduced solar radiation, soil temperature, and nutrient availability, along with some allelopathic effects on certain plant species.
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Exotic plants usually exhibit problems for native species where they coexist. This study evaluated the effect of naturalized alien L. on native plants in urban vegetation.

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L. (Family: Lamiaceae) is a cosmopolitan weed whose eradication is challenging. The phenoplasticity of this species is related to its heteroblastic inflorescence, which has not received adequate research worldwide in its morphological and genetic aspects.

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Vahl is an annual, monoecious and herbaceous member of Asteraceae, found in some localities of different topographic features/habitat conditions along the Mediterranean coastal region of Egypt. This study aimed to investigate some environmental gradients including edaphic and climate criteria on morphological, reproductive traits as well as phenolic and flavonoid metabolites in this species. Three distinct populations were selected.

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  • Human activities during desert urbanization impact the distribution, composition, and diversity of plant species in newly developed ecosystems.
  • A field study spanning two years compared vegetation in new urban habitats to existing desert areas, revealing significant differences in plant cover and species diversity.
  • Results indicated that while some plant species declined in cover due to urbanization, others increased, highlighting the need for conservation strategies to protect vulnerable desert species.
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  • * The study isolated and tested actinobacterial strains from the date palm's rhizosphere, finding that their application improved soil fertility and increased fruit yield during various growth stages.
  • * Treated dates showed enhanced nutritional qualities, with higher levels of beneficial phytochemicals and improved biological activities, suggesting that actinobacteria can significantly boost both productivity and health benefits of date palms.
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This study was conducted to evaluate the use of the phenolic-rich Sonchus oleraceus residue as an environmentally safe approach to induce the nutritive and health-promoting values of common bean ( Phaseolus vulgaris L. cv. Bronco).

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