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Lipochito-Oligosaccharide Nodulation Factors Stimulate Cytoplasmic Polarity with Longitudinal Endoplasmic Reticulum and Vesicles at the Tip in Vetch Root Hairs

December 2000 , Volume 13 , Number  12
Pages  1,385 - 1,390

Deborah D. Miller , Hetty B. Leferink-ten Klooster , and Anne Mie C. Emons

Laboratory of Plant Cell Biology, Department of Plant Sciences, Wageningen University, Arboretumlaan 4, 6703 BD Wageningen, The Netherlands

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Accepted 28 July 2000.

Vetch root hair development has four stages: bulge, growing, growth terminating, and full-grown hair. In the assay we used, the nodulation factor induced swellings and outgrowths in growth-terminating hairs. Bulges, swellings, and full-grown hairs have transverse endoplasmic reticulum (ER) and no tip-accumulated vesicles. Growing hairs and outgrowths show vesicle accumulation in the tip and longitudinal subapical ER. Bulge walls and walls of swellings appear mottled.

© 2000 The American Phytopathological Society