American Journal of Botany, Vol. 104, No. 7 (July 2017), pp. 970-978 (9 pages) PREMISE OF THE STUDY:Root border cells are programmed to separate from the root cap as it penetrates the soil environment ...
The endoplasmic reticulum (ER) of columella root cap cells has been postulated to play a role in gravity sensing. We have re-examined the ultrastructure of columella cells in tobacco (Nicotiana ...
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