Control systems in higher plants

Cytokinesis in Higher Plants

structure, the phragmoplast proper (Figure 1B). This *Department of Molecular, Cellular, structure subsequently shortens in length and expands and Developmental Biology in girth until it finally reaches the side wall (Figure 1C). University of Colorado During phragmoplast expansion there appears to be a Boulder, Colorado 80309–0347 shift in the organization of the MTs; whereas the initial † Dep...

Selenium in Higher Plants.

Plants vary considerably in their physiological response to selenium (Se). Some plant species growing on seleniferous soils are Se tolerant and accumulate very high concentrations of Se (Se accumulators), but most plants are Se nonaccumulators and are Se-sensitive. This review summarizes knowledge of the physiology and biochemistry of both types of plants, particularly with regard to Se uptake ...

Higher Plants

Contamination with 2,4,6-trinitrotoluene (TNT) is widespread at sites of past munitions manufacture. It is moderately toxic to plants and highly toxic to some animals. Some aquatic plant species have been observed to promote degradation of TNT. The degradative activity is associated with the root systems but products are found in the surrounding medium. We have examined a range of sixteen gener...

The Synthesis of Cellulose by Enzyme Systems from Higher Plants.

In 1957 Glaser (1) obtained a particulate fraction from Acetobatter xylinum which catalyzed the incorporation of the glucosyl moiety of uridine diphosphate n-glucose into cellulose. It seemed probable that this most important structural polysaccharide of higher plants was synthesized by a similar mechanism, but attempts to bring about its formation from uridine diphosphate u-glucose by enzyme s...

Graphical Modeling of Higher Plants Using P Systems