Skip Navigation

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (14)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Kiss, J. Z.
Right arrow Articles by Roth, K. K.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Kiss, J. Z.
Right arrow Articles by Roth, K. K.
Agricola
Right arrow Articles by Kiss, J. Z.
Right arrow Articles by Roth, K. K.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Plant and Cell Physiology, 2002, Vol. 43, No. 1 35-43
© 2002 Oxford University Press

Phototropism and Gravitropism in Lateral Roots of Arabidopsis

John Z. Kiss1, Kelley M. Miller, Lisa A. Ogden and Kelly K. Roth

Department of Botany, Miami University, Oxford, OH 45056, U.S.A.

Gravitropism and, to a lesser extent, phototropism have been characterized in primary roots, but little is known about structural/functional aspects of these tropisms in lateral roots. Therefore, in this study, we report on tropistic responses in lateral roots of Arabidopsis thaliana. Lateral roots initially are plagiogravitropic, but when they reach a length of approximately 10 mm, these roots grow downward and exhibit positive orthogravitropism. Light and electron microscopic studies demonstrate a correlation between positive gravitropism and development of columella cells with large, sedimented amyloplasts in wild-type plants. Lateral roots display negative phototropism in response to white and blue light and positive phototropism in response to red light. As is the case with primary roots, the photoresponse is weak relative to the graviresponse, but phototropism is readily apparent in starchless mutant plants, which are impaired in gravitropism. To our knowledge, this is the first report of phototropism of lateral roots in any plant species.

1 Corresponding author: Email, kissjz@muohio.edu; Fax, +1-513-529-4243.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Proc. Natl. Acad. Sci. USAHome page
A. Kobayashi, A. Takahashi, Y. Kakimoto, Y. Miyazawa, N. Fujii, A. Higashitani, and H. Takahashi
From the Cover: A gene essential for hydrotropism in roots
PNAS, March 13, 2007; 104(11): 4724 - 4729.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
M. L. Molas, J. Z. Kiss, and M. J. Correll
Gene profiling of the red light signalling pathways in roots
J. Exp. Bot., September 1, 2006; 57(12): 3217 - 3229.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
Z. Ma and K. H. Hasenstein
The Onset of Gravisensitivity in the Embryonic Root of Flax
Plant Physiology, January 1, 2006; 140(1): 159 - 166.
[Abstract] [Full Text] [PDF]

Home page
 Plant Cell PhysiolHome page
M. J. Correll and J. Z. Kiss
The Roles of Phytochromes in Elongation and Gravitropism of Roots
Plant Cell Physiol., February 1, 2005; 46(2): 317 - 323.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
J. Z. Kiss, J. L. Mullen, M. J. Correll, and R. P. Hangarter
Phytochromes A and B Mediate Red-Light-Induced Positive Phototropism in Roots
Plant Physiology, March 1, 2003; 131(3): 1411 - 1417.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.