منابع مشابه
Different Means to the Same End: Long-Distance Migrant Seabirds from Two Colonies Differ in Behaviour, Despite Common Wintering Grounds
Although seabirds that are trans-equatorial migrants show apparently broad overlap among populations in the non-breeding season, such large-scale pattern may conceal subtle but nevertheless key differences in migratory behaviour. These specializations could reflect adaptation to different environments during the breeding season, carry-over effects from the breeding to the nonbreeding period, or...
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The final size of plant organs, such as leaves, is tightly controlled by environmental and genetic factors that must spatially and temporally coordinate cell expansion and cell cycle activity. However, this regulation of organ growth is still poorly understood. The aim of this study is to gain more insight into the genetic control of leaf size in Arabidopsis (Arabidopsis thaliana) by performing...
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In nature, stressful environments often occur in combination or close succession, and thus the ability to prepare for impending stress likely provides a significant fitness advantage. Organisms exposed to a mild dose of stress can become tolerant to what would otherwise be a lethal dose of subsequent stress; however, the mechanism of this acquired stress tolerance is poorly understood. To explo...
متن کاملMeans to an end
L ike some explorers, the bacterial protein PopZ is at home at the poles. Laloux and Jacobs-Wagner identify a novel mechanism that enables PopZ to collect at one pole as a bacterium prepares to divide (1). In a Caulobacter crescentus bacterium, PopZ accumulates at one end of the cell. Multiple PopZ molecules interweave, forming a mesh-like material that moors the bacterium’s DNA at that pole (2...
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ژورنال
عنوان ژورنال: Nature Reviews Genetics
سال: 2007
ISSN: 1471-0056,1471-0064
DOI: 10.1038/nrg2068