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Physical Sciences and Mathematics Commons™
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Full-Text Articles in Physical Sciences and Mathematics
Exploration Of Climate Influences On The Abundance Of Galls On Red Willow (Salix /Aevigata) Across Two Riparian Communities In Southern California, Victor D. Carmona-Galindo, Rachael Sears, Tauras P. Vilgalys, Emily Hand, Sara Morledge-Hampton
Exploration Of Climate Influences On The Abundance Of Galls On Red Willow (Salix /Aevigata) Across Two Riparian Communities In Southern California, Victor D. Carmona-Galindo, Rachael Sears, Tauras P. Vilgalys, Emily Hand, Sara Morledge-Hampton
Biology Faculty Works
In Southern California, the red willow (Sa/ix laevigata Bebb) hosts a variety of gall-inducing parasitic insects. However, little is known about the ecology of these parasites, particularly the characterization of their microclimate preferences. This study explores the relationship between microclimate and gall frequencies in S. laevigata in the Ballona Wetlands and Temescal Canyon, and gall count correlated with biotic and abiotic factors such as soil pH, soil moisture and willow density. Significantly more galls per leaf were found at Temescal Canyon than Ballona Wetlands. Although the number of galls per leaf correlated negatively with soil pH, soil moisture content and …
Structure And Dynamics Of The Hiv-1 Frameshift Element Rna, Kathryn Mouzakis
Structure And Dynamics Of The Hiv-1 Frameshift Element Rna, Kathryn Mouzakis
Chemistry and Biochemistry Faculty Works
The HIV-1 ribosomal frameshift element is highly structured, regulates translation of all virally encoded enzymes, and is a promising therapeutic target. The prior model for this motif contains two helices separated by a three-nucleotide bulge. Modifications to this model were suggested by SHAPE chemical probing of an entire HIV-1 RNA genome. Novel features of the SHAPE-directed model include alternate helical conformations and a larger, more complex structure. These structural elements also support the presence of a secondary frameshift site within the frameshift domain. Here, we use oligonucleotide-directed structure perturbation, probing in the presence of formamide, and in-virion experiments to examine …