The polar co-ordinate model for pattern regulation in epimorphic fields: A critical appraisal

Sibatani, Atuhiro

doi:10.1016/0022-5193(81)90114-4

Cited by 6 publications

(1 citation statement)

References 59 publications

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“…The circulating wave hypothesis predicts that seedlings would rapidly achieve a stable phyllotaxy, as is observed in practice [43] -most of the morphogen-diffusion models take an unrealistically long time tò settle down' . Finally, the circulating wave hypothesis predicts a special role for the apical centre -in any polar coordinate system the centre or origin represents a singularity [57] ; the field at this point is degenerate, and one would not expect any neogenesis here . Observation is in line with prediction ; primordia do not arise at the centre of the apical dome .…”

Section: Morphogenesis Of the Cauliflower Curdmentioning

confidence: 99%

Sink development, phyllotaxy, and dry matter distribution in a large inflorescence

Hardwick¹

1984

Plant Growth Regul

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This paper argues against the `bicycle pump' model of source-sink relationships. It suggests that it is more fruitful to examine the systems which control sink morphogenesis . This argument is illustrated by reference to the cauliflower `curd' (inflorescence) . In any given curd the weights of successive `florets' (primary branches) fluctuate above and below their expected values . The fluctuations are not due to restricted vascular pipelines, nor to competitive interactions between neighbouring sinks . They are due to highly systematic fluctuations in the timing of floret initiation, and they entail similar fluctuations in primordium position . The phenomenon can be explained by assuming a control system for cytokinesis in which (i) the position of the cell plate responds to mechanical stress (ii) the degree of responsiveness varies cyclically both in time, and around the apical meristem . It seems from this and other evidence that there are strong local controls of sink development in cauliflower .

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Section: Morphogenesis Of the Cauliflower Curdmentioning

confidence: 99%

Sink development, phyllotaxy, and dry matter distribution in a large inflorescence

Hardwick¹

1984

Plant Growth Regul

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A plausible molecular interpretation of the polar coordinate model with a centripetal degeneracy of distinctive field values

Sibatani

1983

Journal of Theoretical Biology

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A non-linear field model of pattern formation: Intercalation in morphalactic regulation

Brandts

Trainor

1990

Journal of Theoretical Biology

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The polar co-ordinate model for pattern regulation in epimorphic fields: A critical appraisal

Cited by 6 publications

References 59 publications

Sink development, phyllotaxy, and dry matter distribution in a large inflorescence

Sink development, phyllotaxy, and dry matter distribution in a large inflorescence

A plausible molecular interpretation of the polar coordinate model with a centripetal degeneracy of distinctive field values

A non-linear field model of pattern formation: Intercalation in morphalactic regulation

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