Patterned cell determination in a plant tissue: The secondary phloem of trees

Article Abstract:

The secondary phloem is composed of three or four cell types, which are organised into characteristic recurrent cellular sequences within the radial cell files of this tissue. The patterning of determination that occurs before differentiation is proposed as being the result of a link between cellular kinetics and morphogen perception and metabolism.

Botany, Phloem, Plant anatomy

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Glutamine breakdown in rapidly dividing cells: waste or investment?

Article Abstract:

The experimental evidence linking proliferation with high rates of glutamine breakdown is presented. The findings indicate that glutamine breakdown might energize some endergonic processes, as well as accelerating other exergonic processes as well as accelerating other exergonic processes related to cellular proliferation.

Glutamine, Chemical properties

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Control of asymmetric cell divisions: will cnidarians provide an answer?

Article Abstract:

Cells in the basal metazon phylum Cnidaria are characterized by remarkable plasticity in their differentiation capacity. A glimpse of the complexities of asymmetric cell divisions in a basal metazon animal is provided.

Genetic aspects, Genetic research, Coelenterata, Cnidarians

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