WebQuorum sensing is the regulation of gene expression in response to fluctuations in cell-population density. Quorum sensing bacteria produce and release chemical signal molecules called autoinducers that increase in concentration as a function of cell density. The detection of a minimal threshold sti … WebDec 6, 2009 · The observation that aggression is enhanced by proximity to a high density of male flies raised the question of whether aggressive behaviour might, in turn, regulate population density.
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WebDec 6, 2009 · Taken together, these data suggest that cVA may have a role in the homeostatic control of male fly population density on a food resource: at low population densities, cVA causes more flies... WebJan 1, 2024 · Semiochemicals are isolated into two general groups: pheromones that intercede connections among population of similar species (intraspecific reactions) and allele chemicals that intervene communications among population of various species (interspecific collaborations). dallas weather tomorrow morning
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WebJun 18, 2024 · We noted that addition of synthetic α-pheromone can block germination even at normal spore densities, while genetic deletion of the α-pheromone or its receptor and downstream signaling components such as the MAPK module, can release the block in germination, even at inhibitory spore densities. WebJul 25, 2005 · Strong positive correlations between trap catch and relative population density were found in 2000 and 2001, but not in 1998, when only few sites were monitored and the population was in a decreasing phase. The results are promising for future large-scale use of pheromone-based monitoring of D. jingyuanensis. WebApr 1, 2024 · The main objectives were to determine consistency and reliability for measures of: 1) the trapping radius, composed of the trap's behaviorally effective plume reach and the maximum dispersive distance of a responder population; and 2) the proportion of the population present in the trapping area that is caught. dallas weather underground radar