The possible involvement of root-cap mucilage in gravitropism and calcium movement across root tips of Allium cepa L.


Roots of Allium cepa L. grown in aerated water elongate rapidly, but are not graviresponsive. These roots (1) possess extensive columella tissues comprised of cells containing numerous sedimented amyloplasts, (2) lack mucilage on their tips, and (3) are characterized by a weakly polar movement of calcium (Ca) across their tips. Placing roots in humid air… (More)


Figures and Tables

Sorry, we couldn't extract any figures or tables for this paper.