Publications by authors named "Sameh Hassanein"

Article Synopsis
  • Mitochondria are vital for energy production and play important roles in cellular processes and stress responses, particularly in plants facing environmental challenges like drought.
  • This study investigates RNA editing patterns in distinct wheat cultivars under drought conditions to better understand how plants adapt to stress.
  • Results indicate significant RNA editing, especially C-to-T conversions, affecting protein structure and regulatory functions, with differences in responses between drought-tolerant and sensitive wheat varieties.
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Background: Recent discoveries have illustrated that Lin28A is an oncogene in various cancers, particularly acute myeloid leukemia (AML). The upregulation of Lin28A can actively contribute to tumorigenesis and migration processes in multiple organs. Hence, the inhibition of Lin28A can be achieved by applying phytochemical herbals and targeting Lin28A protein using a computer-aided drug design (CAAD) approach.

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Article Synopsis
  • Arbuscular mycorrhiza (AM) is a beneficial relationship between plant roots and fungi that helps plants absorb nutrients and cope with environmental stresses.
  • RNA-seq technology was used to analyze the gene expression in tomato roots at 7 and 30 days after being inoculated with the fungus, identifying 1,019 differentially expressed genes (DEGs), with a strong emphasis on plant defense, growth, and nutrient transport.
  • The study offers new insights into the role of AM-responsive genes in tomato roots, enhancing our understanding of the interactions between plants and symbiotic fungi over short and long durations.
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Decreasing the camptothecin productivity by fungi with storage and subculturing is the challenge that halts their further implementation to be an industrial platform for camptothecin (CPT) production. The highest differentially abundant proteins were Pleckstrin homology (PH) domain-containing proteins and Peptidyl-prolyl / isomerase that fluctuated with the subculturing of with a remarkable relation to CPT biosynthesis and restored with addition of microbiome.

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Endosymbionts are known to have significant effects on their insect hosts, including nutrition, reproduction, and immunity. Insects gut microbiota is a critical component that affects their physiological and behavioral characteristics. The black cutworm (BCW), Agrotis ipsilon, is an economically important lepidopteran pest that has a diverse gut microbiome composed of nine species belonging to three phyla: Proteobacteria, Actinobacteria, and Firmicutes.

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Attenuating the Taxol biosynthesis by fungi with storage and subculturing is the major challenge that limits their further industrial applications. Aspergillus flavipes has been reported as a potent Taxol producer, with plausible increasing to its Taxol yield upon coculturing with the microbiome of Podocarpus gracilior (El-Sayed et al., Process Biochemistry 76:55-67, 2019a; Scientific Reports 9, 2019b; Enzyme and Microbial Technology 131, 2019c); however, the identity of these microbial inducers remains ambiguous.

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Coronavirus Disease 2019 (COVID-19) caused by a Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) was first reported in Wuhan, China at the end of December 2019. SARS-CoV-2 is a highly pathogenic zoonotic virus and closely related to the Severe Acute Respiratory Coronavirus (SARS-CoV) and Middle East Respiratory Syndrome Coronavirus (MERS-CoV). The COVID-19 was declared as a global pandemic due to its high infectiousness, and worldwide morbidities and mortalities.

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Most scientific studies on Calotropis procera refer to the plant as an important source of pharmaceutical compounds and its valuable benefits in medicine. One of the most important substances in this plant is the potential immunostimulant β-sitosterol (BS) that acts in improving human health. This study focused on the effects of lighting before and after irrigation on the BS accumulation pathway namely steroid biosynthesis.

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Background: Wheat is considered the most important cereal crop all over the world. The wheat weevil Sitophilus granarius is a serious insect pests in much of the wheat growing area worldwide and is responsible for significant loss of yield. Avidin proteins has been proposed to function as plant defense agents against insect pests.

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The wild plant known as Calotropis procera is important in medicine, industry and ornamental fields. Due to spread in areas that suffer from environmental stress, it has a large number of tolerance genes to environmental stress such as drought and salinity. Proline is one of the most compatible solutes that accumulate widely in plants to tolerate unfavorable environmental conditions.

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