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Full-Text Articles in Life Sciences

Transgenerational Effects Of Maternal Age On Offspring Fitness In Crickets, Jacob D. Wilson Jan 2019

Transgenerational Effects Of Maternal Age On Offspring Fitness In Crickets, Jacob D. Wilson

Electronic Theses and Dissertations

Advanced parental age is an important aspect of parental condition that can have both positive and negative effects on offspring fitness, and thus, parental age can be considered a parental effect. As a parental effect, parental age may affect a variety of offspring traits and may cascade to influence several generations of offspring. Given the complexities of studying both paternal and maternal age, we studied the effects of maternal age only. Using the Pacific field cricket, Teleogryllus oceanicus, we asked 1) does maternal age have influences over several generations of offspring and 2) does maternal age influence the reproductive …


New Insights Into Mycofactocin Biosynthesis, Structure And Function, Richard Selorm Ayikpoe Jan 2019

New Insights Into Mycofactocin Biosynthesis, Structure And Function, Richard Selorm Ayikpoe

Electronic Theses and Dissertations

Mycofactocin is a putative ribosomally synthesized and post-translationally modified peptide (RiPP)-derived redox cofactor. Its biosynthesis is accomplished through the dedicated actions of the products of six conserved genes, mftABCDEF. The mycofactocin pathway is one of the most widely distributed RiPP systems in bacteria however, this distribution is heavily skewed towards the Mycobacteria genus including human pathogenic variants such as M. tuberculosis and M. ulcerans. Gene expression studies have demonstrated the essentiality of the pathway in the ability of M. tuberculosis to utilize the host's cholesterol as sole carbon source during latency. However, the biosynthesis, structure and physiological function …