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 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 (12)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Loss, S. P.
Right arrow Articles by Ritchie, G. S. P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Loss, S. P.
Right arrow Articles by Ritchie, G. S. P.
Agricola
Right arrow Articles by Loss, S. P.
Right arrow Articles by Ritchie, G. S. P.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Annals of Botany 74: 69-74, 1994
© 1994 Annals of Botany Company

Nutrient Uptake and Organic Acid Anion Metabolism in Lupins and Peas Supplied with Nitrate

S. P. Loss*, A. D. Robson and G. S. P. Ritchie

Soil Science and Plant Nutrition, School of Agriculture, University of Western Australia Nedlands W.A. 6009, Australia

* Present address: Plant Industries, Department of Agriculture Western Australia, 3 Baron-Hay Court, South Perth 6151, Australia.

Received: 25 September 1992    Accepted: 17 January 1994   

Unlike many plants reported in the literature, lupins do not excrete OH– in amounts equivalent to the net excess of inorganic anion uptake over inorganic cation uptake. To investigate the mechanisms involved in the maintenance of charge balance, nutrient uptake and organic anion accumulation of lupins and peas supplied with a range of NO3– concentrations, were compared.

Lupins absorbed less NO3– than peas on a dry weight basis, which largely ACCOUNTED for the smaller excess of anion uptake over cation uptake in lupins than in peas at the same NO3– supply. When anion uptake exceeded cation uptake, peas excreted an equivalent charge of OH–, whereas lupins excreted much smaller amounts of OH– than the excess of anion over cation uptake. It was calculated that lupins excreted significant amounts of organic anions when anion uptake exceeded cation uptake, whereas organic anion excretion from peas was negligible, regardless of their NO3– supply and cation–anion balance.

In this study, organic anion excretion was measured from lupin roots grown in near-sterile conditions while supplied with NO3– at 0, 500 and 2000 µM. Although complete sterility was not achieved, there was close agreement between the organic anion excreted and the excess anion over cation uptake.

Lupinus angustifolius L., Pisum sativum L., organic acid, nutrient uptake


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
 ANN BOT (LOND)Home page
X. H. FAN, C. TANG, and Z. RENGEL
Nitrate Uptake, Nitrate Reductase Distribution and their Relation to Proton Release in Five Nodulated Grain Legumes
Ann. Bot., September 1, 2002; 90(3): 315 - 323.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
Y.-P. Cen, D. H. Turpin, and D. B. Layzell
Whole-Plant Gas Exchange and Reductive Biosynthesis in White Lupin
Plant Physiology, August 1, 2001; 126(4): 1555 - 1565.
[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.