Skip Navigation

This Article
Right arrow FREE Full Text (PDF) Freely available
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 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 (10)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Pemberton, L. M. S.
Right arrow Articles by Harris, P. J.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Pemberton, L. M. S.
Right arrow Articles by Harris, P. J.
Agricola
Right arrow Articles by Pemberton, L. M. S.
Right arrow Articles by Harris, P. J.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Annals of Botany 87: 649-654, 2001
© 2001 Annals of Botany Company

Epidermal Patterning in Seedling Roots of Eudicotyledons

Lia M. S. Pemberton, Shin-Ling Tsai, Peter H. Lovell and Philip J. Harris+

School of Biological Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand

Received: 2 November 2000 ; Returned for revision: 17 December 2000 . Accepted: 22 January 2001

Three types of epidermal patterning occur in roots of angiosperms: in Type 1, all the epidermal cells can potentially produce root hairs (hair cells); in Type 2, asymmetric cell divisions produce short cells that develop into hair cells and larger cells that do not (non-hair cells); and in Type 3, hair cells occur in files separated by one to three files of non-hair cells. In the present study we examined the epidermal patternings of seedling roots of 77 eudicotyledonous species from 43 families. We found that Type 1 patterning was the most common and no species had Type 2 patterning. Previously, Type 3 epidermal patterning had been described only in the family Brassicaceae. In addition to the Brassicaceae (including the Capparaceae), we found Type 3 patterning in the Brassicales families Limnanthaceae and Resedaceae, whereas the other Brassicales families we examined, Caricaceae and Tropaeolaceae, had Type 1 patterning. We also found Type 3 patterning in six families of the Caryophyllales sensu lato: Amaranthaceae, Basellaceae, Caryophyllaceae, Plumbaginaceae, Polygonaceae and Portulacaceae. However, the family Cactaceae, which is also in this order, had Type 1 patterning. Only one other species, Nemophila maculata(Boraginaceae), had Type 3 patterning; the other two species that we examined in this family had Type 1 patterning. Type 3 patterning thus occurs more widely in the eudicotyledons than was previously thought. Copyright 2001 Annals of Botany Company

Brassicales, Caryophyllales, eudicotyledons, epidermal patterning, phylogeny, root hairs, roots, seedlings


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
 Am. J. Bot.Home page
S. Shishkova and J. G. Dubrovsky
Developmental programmed cell death in primary roots of Sonoran Desert Cactaceae
Am. J. Botany, September 1, 2005; 92(9): 1590 - 1594.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
Y.-J. Zhang, J. P. Lynch, and K. M. Brown
Ethylene and phosphorus availability have interacting yet distinct effects on root hair development
J. Exp. Bot., October 1, 2003; 54(391): 2351 - 2361.
[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.