Effect of indoleacetic acid, abscisic acid, root tips and coleoptile tips on growth and curvature of maize roots
β Scribed by M. Schurzmann; V. Hild
- Publisher
- Springer-Verlag
- Year
- 1980
- Tongue
- English
- Weight
- 400 KB
- Volume
- 150
- Category
- Article
- ISSN
- 0032-0935
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Because both abscisic acid (ABA) and auxin (IAA) have been suggested as possible chemical mediators of differential growth during root gravitropism, we compared with redistribution of label from applied 3H-IAA and 3H-ABA during maize root gravitropism and examined the relative basipetal movement of
The tips of intact maize (cv. LG 11) roots, maintained vertically, were pretreated with a droplet of buffer solution or a bead of anion exchange resin, both containing [214-C]abscisic acid (ABA). A significant basipetal ABA movement was observed and two metabolites of ABA (possibly phaseic acid and
Plastic and elastic in-vitro extensibilities (Epl and Eol) of cell walls from growing maize (Zea mays L.) coleoptile segments were measured by stretching frozen-thawed tissue, pre-extended to its in-vivo length, at constant force (creep test) in a custom-buildt extensiometer, equipped with a linear-