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Usama Ramadan Abdelmohsen
Researcher at Minia University
Publications - 239
Citations - 4485
Usama Ramadan Abdelmohsen is an academic researcher from Minia University. The author has contributed to research in topics: Medicine & Chemistry. The author has an hindex of 27, co-authored 176 publications receiving 2679 citations. Previous affiliations of Usama Ramadan Abdelmohsen include King Khalid University & University of Kiel.
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Journal ArticleDOI
Diversity, abundance and natural products of marine sponge-associated actinomycetes
TL;DR: This review focuses on the diversity, abundance and methodological approaches targeting marine sponge-associated actinomycetes, and novel qPCR data on actInomycete abundances in different sponge species and other environmental sources are presented.
Journal ArticleDOI
Elicitation of secondary metabolism in actinomycetes
Usama Ramadan Abdelmohsen,Usama Ramadan Abdelmohsen,Tanja Grkovic,Srikkanth Balasubramanian,Mohamed Kamel,Ronald J. Quinn,Ute Hentschel +6 more
TL;DR: This review focuses on the effects of biological, chemical, as well as molecular elicitation on secondary metabolism in actinomycetes and exemplifies the diversity of natural products that have been recovered by such approaches from the phylum Actinobacteria.
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Cytokinins Mediate Resistance against Pseudomonas syringae in Tobacco through Increased Antimicrobial Phytoalexin Synthesis Independent of Salicylic Acid Signaling
Dominik K. Großkinsky,Muhammad Naseem,Usama Ramadan Abdelmohsen,Nicole Plickert,Thomas Engelke,Thomas Griebel,Jürgen Zeier,Ondřej Novák,Miroslav Strnad,Hartwig W. Pfeifhofer,Eric van der Graaff,Uwe K. Simon,Thomas Roitsch +12 more
TL;DR: A novel transgenic approach enabling autoregulated cytokinin synthesis in response to pathogen infection showed that cytokinins mediate enhanced resistance against the virulent hemibiotrophic pathogen Pseudomonas syringae pv tabaci.
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Antiviral potential of green synthesized silver nanoparticles of Lampranthus coccineus and Malephora lutea.
Eman G. Haggag,Ali M. El-Shamy,Mohamed A Rabeh,Nagwan M. Gabr,Mohamed A. Salem,Khayrya A. Youssif,Ahmed Samir,Abdullatif Bin Muhsinah,Abdulrhman Alsayari,Usama Ramadan Abdelmohsen +9 more
TL;DR: Investigation of the aqueous and hexane extracts of Lampranthus coccineus and Malephora lutea for the synthesis of silver nanoparticles found its possible antiviral activity to be similar to those of the co-crystal inhibitors.
Journal ArticleDOI
Isolation, Phylogenetic Analysis and Anti-infective Activity Screening of Marine Sponge-Associated Actinomycetes
Usama Ramadan Abdelmohsen,Sheila Marie Pimentel-Elardo,Amro Hanora,Mona Radwan,Soad H. Abou-El-Ela,Safwat A. Ahmed,Ute Hentschel +6 more
TL;DR: Results show a high diversity of actinomycetes associated with marine sponges as well as highlight their potential to produce anti-infective agents.