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Articles 1 - 3 of 3
Full-Text Articles in Life Sciences
The Effect Of Nitrate On The Release Of Glucose Into The Hemolymph Of Crayfish, Procambarus Clarkii, Alec R. Flores, Lee Kats, David Green, Gary Bucciarelli
The Effect Of Nitrate On The Release Of Glucose Into The Hemolymph Of Crayfish, Procambarus Clarkii, Alec R. Flores, Lee Kats, David Green, Gary Bucciarelli
Seaver College Research And Scholarly Achievement Symposium
Pollutants can change the behaviors of invertebrate stream animals. The level of one common pollutant, nitrate (NO3), has been rising in many local rivers and streams throughout the United States due to increases in anthropogenic sources. Nitrate, heavily regulated for its toxic effects to human health, namely the aiding in the development of cancer, also dangerously affects aquatic species by converting oxygen-carrying pigments to forms that are incapable of carrying oxygen. To understand the stress effects of ambient nitrate exposure on P. clarkii, we collected hemolymph samples from red swamp crayfish (Procambarus clarkii) over a 48-hour period after exposure to …
Root Hydraulic Conductance In Malosma Laurina Experiencing Severe Dieback In The Santa Monica Mountains, Natalie M. Aguirre 5861995, Avery Davis, Sarah Nelson
Root Hydraulic Conductance In Malosma Laurina Experiencing Severe Dieback In The Santa Monica Mountains, Natalie M. Aguirre 5861995, Avery Davis, Sarah Nelson
Seaver College Research And Scholarly Achievement Symposium
Malosma laurina is a dominant species in coastal chaparral ecosystems The deep root systems of M. laurina provide structural support for the steep Santa Monica Mountains and allow M. laurina to tap into the deep water table. M. laurina dieback is prevalent in coastal exposures of the SMM, presumably due to historic drought predisposing plant tissues to infection by the fungal pathogen Botryosphaeria dothidea. In ecosystems that experience annual dry periods, a high hydraulic conductance in roots is necessary to provide plants with sufficient water. A recent study has examined the effect of Botryosphaeria on the hydraulic conductance of M. …
Genetically Induced Production Of Secondary Metabolites In Bacillus Megaterium, Majie C. Foster, Jay L. Brewster, P. Matthew Joyner
Genetically Induced Production Of Secondary Metabolites In Bacillus Megaterium, Majie C. Foster, Jay L. Brewster, P. Matthew Joyner
Seaver College Research And Scholarly Achievement Symposium
Historically, the most important source of new antibiotic drug leads has been small organic compounds made by bacteria. Many antibiotics have been developed into pharmaceutical agents from these molecules (often called secondary metabolites) produced by soil bacteria. Bacillus species are soil bacteria known for producing various antimicrobials including gramicidin, bacitracin, surfactin, and others. Bacillus megaterium is a widely used model gram positive bacterium. Although there has been extensive research on this organism, little is known about its secondary metabolites. We hypothesized that the production of secondary metabolites in this organism could be induced by replacing promoters controlling the expression of …