|
Title
|
|
|
|
The role of brassinosteroids in shoot gravitropism
| |
|
Author
|
|
|
|
| |
|
Abstract
|
|
|
|
| In the current model of gravitropism, negative gravitropic (upward) growth of the shoot of a dicotyledonous plant involves sedimentation of starch-containing plastids (statoliths) in the endodermis (starch sheath). Here we show that high levels of brassinosteroids (BRs) counteract gravitropic growth, while BR deficiency enhances gravitropism irrespective of the presence of a functional starch sheath. These data support a role for BRs as negative regulators of the shoot graviresponse. |
| |
|
Language
|
|
|
|
English
| |
|
Source (journal)
|
|
|
|
Plant physiology. - Rockville, Md
| |
|
Publication
|
|
|
|
Rockville, Md
:
2011
| |
|
ISSN
|
|
|
|
0032-0889
| |
|
DOI
|
|
|
|
10.1104/PP.111.177873
| |
|
Volume/pages
|
|
|
|
156
:3
(2011)
, p. 1331-1336
| |
|
ISI
|
|
|
|
000292294100031
| |
|
Full text (Publisher's DOI)
|
|
|
|
| |
|