Niche Assembly
Mostrando 13-16 de 16 artigos, teses e dissertações.
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13. Genetics and Assembly Line Enzymology of Siderophore Biosynthesis in Bacteria
The regulatory logic of siderophore biosynthetic genes in bacteria involves the universal repressor Fur, which acts together with iron as a negative regulator. However in other bacteria, in addition to the Fur-mediated mechanism of regulation, there is a concurrent positive regulation of iron transport and siderophore biosynthetic genes that occurs under con
American Society for Microbiology.
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14. Niches, body sizes, and the disassembly of mammal communities on the Sunda Shelf islands
The rising sea level at the end of the Pleistocene that created the islands of the Sunda Shelf in Indonesia and Malaysia provides a natural experiment in community disassembly and offers insights into the effects of body size and niches on abundance, distribution, and diversity. Since isolation, terrestrial mammal communities of these islands have been reduc
National Academy of Sciences.
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15. Evidence for Segment-Nonspecific Packaging of the Influenza A Virus Genome
The influenza A virus genome is composed of eight negative-sense RNA segments (called vRNAs), all of which must be packaged to produce an infectious virion. It is not clear whether individual vRNAs are packaged specifically or at random, however, and the total vRNA capacity of the virion is unknown. We have created modified forms of the viral nucleoprotein (
American Society for Microbiology.
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16. Contribution of pilA to Competitive Colonization of the Squid Euprymna scolopes by Vibrio fischeri
Vibrio fischeri colonizes the squid Euprymna scolopes in a mutualistic symbiosis. Hatchling squid lack these bacterial symbionts, and V. fischeri strains must compete to occupy this privileged niche. We cloned a V. fischeri gene, designated pilA, that contributes to colonization competitiveness and encodes a protein similar to type IV-A pilins. Unlike its cl
American Society for Microbiology.