Abstract
Primary roots of Zea mays L. cv. Tx 5855 treated with fluridone are strongly graviresponsive, but have undetectable levels of abscisic acid (ABA). Primary roots of the carotenoid-deficient w-3, up-5, and up-7 mutants of Z. mays are also graviresponsive despite having undetectable amounts of ABA. Graviresponsive roots of untreated and wild-type seedlings contain 286 to 317 ng ABA g-1f. wt, respectively. These results indicate that ABA is not necessary for root gravicurvature.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 281-283 |
| Number of pages | 3 |
| Journal | Annals of Botany |
| Volume | 66 |
| Issue number | 3 |
| DOIs | |
| State | Published - Sep 1990 |
Bibliographical note
Funding Information:This research was supported by a grant from the National Aeronautics and Space Administration.
Keywords
- Abscisic acid
- Corn, fluridone
- Viviparous
- Zea mays L. cv. Tx5855