Pattern Formation in Cluster Roots: Some Developmental and Evolutionary Considerations
نویسندگان
چکیده
منابع مشابه
Some physical, mathematical and evolutionary aspects of biological pattern formation.
An important mechanism in the generation of biological structures is the production of defined spatial patterns within initially near-uniform cells and tissues. This process can be modelled on the basis of conventional molecular kinetics if there is a short-range activating effect in conjunction with depletion or inhibition extending over a wider range ('lateral inhibition'). Such pattern-gener...
متن کاملSome physical, mathematical and evolutionary aspects of biological pattern formation
An important mechanism in the generation of biological structures is the production of defined spatial patterns within initially near-uniform cells and tissues. This process can be modelled on the basis of conventional molecular kinetics if there is a shortrange activating effect in conjunction with depletion or inhibition extending over a wider range (‘lateral inhibition’). Such pattern-genera...
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Developmental regulatory mechanisms, pattern formation, and evolution This issue of (,}~rretzt OpiJfio~l iJl GeJleti~:~ ~ l)~,dopmellt examines mechanisms by which pattern is established during the dexelopment of a broad range of organisms and in a wide ~ariety of tissues. Perhaps the most important message to emerge is that, (m the whole, devclopmental mechanisms have been extraordinarily well...
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Introduction To understand how animals are built requires understanding of the mechanisms that define: first, how anterior-posterior, dorsal-ventral and left-right axes of polarity are established, second, how this information is interpreted by cells to acquire specific fates, third, how cells translate this information to elicit particular cell behaviors (proliferation, shape change, migration...
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The problem of explaining the rich spectrum of different patterns exhibited by mammals has a long history. In a controversial paper (1952) Turing proposed a Reaction-Diffusion (RD) model to explain at a macroscopic scale the process of pattern formation, as related to the occurrence of what he called a diffusion-driven instability. A typical Turing system consists of at least two chemical speci...
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ژورنال
عنوان ژورنال: Annals of Botany
سال: 2000
ISSN: 0305-7364
DOI: 10.1006/anbo.2000.1140