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Articles 31 - 36 of 36
Full-Text Articles in Biotechnology
Identification Of Arabidopsis Candidate Genes In Response To Biotic And Abiotic Stresses Using Comparative Microarrays, Salma Omar Al Ameri
Identification Of Arabidopsis Candidate Genes In Response To Biotic And Abiotic Stresses Using Comparative Microarrays, Salma Omar Al Ameri
Theses
Plants have evolved with intricate mechanisms to cope with multiple environmental stresses. To adapt with biotic and abiotic stresses, plant responses involve changes at the cellular and molecular levels. The current study was designed to investigate the effects of combinations of different environmental stresses on the transcriptome level of Arabidopsis thaliana genome using public microarray databases. We investigated the role of cyclopentenones in mediating plant responses to environmental stress through TGA (TGACG motif-binding factor) transcription factor, independently from jasmonic acid. Candidate genes were identified by comparing plants inoculated with Botrytis cinerea or treated with heat, salt or osmotic stress with …
Anti-Colon Cancer Activity Of Origanum Majorana, Nedaa Faisal Al Tamimi
Anti-Colon Cancer Activity Of Origanum Majorana, Nedaa Faisal Al Tamimi
Theses
In the present project, we extend the previous studies of Origanum majorana by evaluating the anti-cancer potential of this plant extract on proliferation of colon cancer. Toward this, we first evaluated the effect of the plant extract on the proliferation and DNA damage, in vitro, of the human colon cancer HT-29 cell line. We also determine the mechanism by which Origanum majorana induced cell death by this extract using biochemical approach. Our results revealed that O. majorana inhibited the growth of HT-29 cells by effecting the cells viability. Further work showed the ability of the extract to cause DNA damage, …
Trascriptome Analysis Reveals Genes Commonly Induced By Botrytis Cinerea Infection, Cold, Drought And Oxidative Stresses In Arabidopsis Thaliana, Ahmed Dawood Al-Azzawi Al-Azzawi
Trascriptome Analysis Reveals Genes Commonly Induced By Botrytis Cinerea Infection, Cold, Drought And Oxidative Stresses In Arabidopsis Thaliana, Ahmed Dawood Al-Azzawi Al-Azzawi
Theses
Signaling pathways controlling biotic and abiotic stress responses may interact synergistically or antagonistically. To identify the similarities and differences among responses to diverse stresses, we analyzed previously published microarray data on the transcriptomic responses of Arabidopsis thaliana to infection with Botrytis cinerea (a biotic stress), and to cold, drought, and oxidative stresses (abiotic stresses). Our analyses showed that at early stages after B. cinerea inoculation, 1498 genes were up-regulated (B. cinerea up-regulated genes; BUGs) and 1138 genes were down-regulated (B. cinerea down-regulated genes; BDGs). We showed a unique program of gene expression was activated in response each biotic and abiotic …
Transcriptomes Analysis Reveals Genes Commonly Induced By Botrytis Cinerea Infection, Cold, Drought And Oxidative Stresses In Arabidopsis Thaliana, Ahmed Dawood Al-Azzawi
Transcriptomes Analysis Reveals Genes Commonly Induced By Botrytis Cinerea Infection, Cold, Drought And Oxidative Stresses In Arabidopsis Thaliana, Ahmed Dawood Al-Azzawi
Theses
Signaling pathways controlling biotic and abiotic stress responses may interact synergistically or antagonistically. To identify the similarities and differences among responses to diverse stresses, we analyzed previously published microarray data on the transcriptomic responses of Arabidopsis thaliana to infection with Botrytis cinerea (a biotic stresses). Our analyses showed that at least at early stages B. cinerea inoculation, 1498 genes were up-regulated (B. cinerea up-regulated genes; BUGS) and 1138 genes were down-regulated (B. cinerea down-regulated genes; BUGS). We showed a unique program of gene expression was activated in response each biotic and abiotic stress, but that …
Isolation And Molecular Characterization Of Mycobacterium Avium Subsp. Paratuberculosis In Ireland, Pierre Emmanuel Douarre
Isolation And Molecular Characterization Of Mycobacterium Avium Subsp. Paratuberculosis In Ireland, Pierre Emmanuel Douarre
Theses
MAP is a proven animal pathogen causing Johne's disease, one of the most widespread and economically important diseases of ruminants. Since 1992 and the opening of the European market, the prevalence of MAP in Ireland has increased considerably. Improvements in diagnostic strategies for Ireland and elsewhere are urgently required. MAP infects a wide host range and has emerged as a potential threat to human health and has been associated with Crohn's disease. The control of paratuberculosis infection requires a better understanding of the genetic diversity of the pathogen. The objective of this study was to isolate and characterize this enteric …
The Evidence For A Nascent Biotechnology Cluster In Cork, John W. Hobbs
The Evidence For A Nascent Biotechnology Cluster In Cork, John W. Hobbs
Theses
Over the past 30 years, encouraged by Ireland’s low rate of corporation tax (currently 12.5 %), and active promotion of FDI by the IDA, foreign owned pharmaceutical plants have set up and multiplied in the Cork area. To Ireland’s advantages of a low tax rate, an English speaking population, a pro-business environment and membership of EU, Cork offered the added attractions of a deepwater port and large natural harbour, good freight connections, an international airport, an educated workforce and excellent sporting and leisure facilities for sailing, golf, etc. (Pfizer, Eli Lilly, Novartis, GlaxoSmithKline, Johnson & Johnson and Schering Plough have …