ISSN:
0931-1890
Keywords:
Key words Constant external pressure
;
Fagus sylvatica
;
Fiber tracheid differentiation
;
Two-dimensional PAGE
;
Vessel element differentiation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract Segments of standing beech stems (Fagus sylvatica) were put under mechanical pressure from the end of May, in order to investigate the influence of constant external pressure on the development of secondary vascular tissue. After 4 weeks, the new xylem increment was investigated anatomically in cross-sections. The first axial xylem derivatives of the new year’s increment had differentiated into normal vessel elements and fiber-tracheids. Application of the pressure girdle had no effect on fiber-tracheid development, but it inhibited vessel formation. Under pressure, changes in the two dimensional PAGE protein pattern were characterized by the appearance of two new protein species as well as by the absence of one species that occurs under regular growth.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/PL00009678
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