Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 109726
Title Lipochito-oligosaccharides re-initiate root hair tip growth in Vicia sativa with high calcium and spectrin-like antigen at the tip
Author(s) Ruijter, N.C.A. de; Rook, M.B.; Bisseling, T.; Emons, A.M.C.
Source The Plant Journal 13 (1998)3. - ISSN 0960-7412 - p. 341 - 350.
Department(s) Laboratory of Molecular Biology
Laboratory of Plant Cell Biology
Publication type Refereed Article in a scientific journal
Publication year 1998
Abstract Lipochitooligosaccharides, Nod factors secreted by Rhizobium bacteria, are signal molecules that induce deformation of root hairs of their host plant. A bioassay was used for deformation, and the cytological changes induced by specific lipochitooligosaccharides in root hairs of Vicia sativa L. (vetch), grown between glass slides, were examined. In the assay, root hairs of a particular developmental stage, those that were terminating growth, were susceptible to deformation. These hairs obtained characteristics of tipgrowing cells again: (i) a polar cytoplasmic organization and reverse fountain streaming, (ii) an accumulation of a spectrinlike antigen at the tip, and (iii) a tipfocused calcium gradient. Calcium gradients were visualized in Indo1 loaded root hairs with UV confocal microscopy and ratioimaging. The results show that hairs respond to the bacterial signal by recovering cytoplasmic polarity and exocytosis
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