Skip Navigation


AOBPreview originally published online on June 19, 2005
Annals of Botany 2005 96(3):379-385; doi:10.1093/aob/mci190
This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
96/3/379    most recent
mci190v1
Right arrow E-letters: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
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 (1)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by SOUKUP, A.
Right arrow Articles by VOTRUBOVÁ, O.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by SOUKUP, A.
Right arrow Articles by VOTRUBOVÁ, O.
Agricola
Right arrow Articles by SOUKUP, A.
Right arrow Articles by VOTRUBOVÁ, O.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?


© The Author 2005. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oupjournals.org

Developmental Anatomy of the Root Cortex of the Basal Monocotyledon, Acorus calamus (Acorales, Acoraceae)

ALES SOUKUP1,*, JAMES L. SEAGO, JR2 and OLGA VOTRUBOVÁ1

1 Department of Plant Physiology, Charles University, Vinicná 5, Prague, 128 44, Czech Republic and 2 Department of Biology, SUNY, Oswego, NY 13126, USA

* For correspondence. E-mail asoukup{at}natur.cuni.cz

Received: 29 September 2004    Returned for revision: 27 January 2005    Accepted: 6 May 2005    Published electronically: 19 June 2005

• Background and Aims The anatomical structure and development of adventitious roots were analysed in the basal monocotyledon, Acorus calamus, to determine to what extent those features are related to phylogenetic position.

• Methods Root specimens were harvested and sectioned, either with a hand microtome or freehand, at varying distances from the root tip and examined under the microscope using a variety of staining techniques.

• Key Results Roots of Acorus calamus possess a unique set of developmental characteristics that produce some traits similar to those of another basal angiosperm group, Nymphaeales. The root apical meristem organization seems to be intermediate between that of a closed and an open monocotyledonous root apical meristem organization. The open-type root apical meristem consists of a curved zone of cortical initials and epidermal initials overlying the vascular cylinder initials; the epidermal part of the meristem varies in its association with the cortical initials and columellar initials of the promeristem. The cortex develops an endodermis with only Casparian bands, a dimorphic exodermis with Casparian bands and suberin lamellae, and a polygonal aerenchyma by differential expansion, as also observed in the Nymphaeales and some dicotyledonous species. The stele has characteristics like those of members of the Nymphaeaceae.

• Conclusions Specific anatomical and developmental attributes of Acorus roots seem to be related to the phylogenetic position of this genus.

Key words: Acorus, anatomy, apical meristem, cortex, phylogeny, root, stele


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
C. Heimsch and J. L. Seago Jr.
Organization of the root apical meristem in angiosperms
Am. J. Botany, January 1, 2008; 95(1): 1 - 21.
[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.