Skip Navigation


AOBPreview originally published online on March 14, 2005
Annals of Botany 2005 95(6):1033-1037; doi:10.1093/aob/mci114
This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
95/6/1033    most recent
mci114v1
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 (2)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by RATHINASABAPATHI, B.
Right arrow Articles by RAMAN, S. B.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by RATHINASABAPATHI, B.
Right arrow Articles by RAMAN, S. B.
Agricola
Right arrow Articles by RATHINASABAPATHI, B.
Right arrow Articles by RAMAN, S. B.
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

Exogenous Supply of Pantoyl Lactone to Excised Leaves Increases their Pantothenate Levels

BALA RATHINASABAPATHI* and SURESH BABU RAMAN{dagger}

Horticultural Sciences Department, University of Florida, Gainesville, FL 32611, USA

* For correspondence. E-mail brath{at}mail.ifas.ufl.edu

Received: 7 October 2004    Returned for revision: 2 December 2004    Accepted: 26 January 2005    Published electronically: 14 March 2005

• Background and Aims All plants synthesize pantothenate but its synthesis and regulation are not well understood. The aim of this work is to study the effect of exogenous supply of precursor compounds on pantothenate levels in leaves.

• Methods Precursor compounds were supplied in solution to excised leaves and the pantothenate content was measured using a microbial method.

• Key Results Pantothenate levels in excised leaves of Limonium latifolium, tomato (Lycopersicon esculentum), bean (Phaseolus vulgaris) and grapefruit (Citrus x paradisi) were examined following an exogenous supply of the precursor compounds pantoyl lactone or ß-alanine. Significantly higher levels of extractable pantothenate were found when pantoyl lactone was supplied, but not when ß-alanine was supplied despite a measurable uptake of ß-alanine into the leaf.

• Conclusions The results suggested that the pantoate supply may be rate-limiting or regulating pantothenate synthesis in leaves.

Key words: ß-Alanine, ß-alanine betaine, Limonium latifolium, Lycopersicon esculentum, osmoprotection, pantoate, pantothenate


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




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.