Plant Physiol. Drug Metab Dispos
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Plant Physiology 70:465-468 (1982)
© 1982 American Society of Plant Biologists

This Article
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 PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Shearer, G.
Right arrow Articles by Mariotti, A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Shearer, G.
Right arrow Articles by Mariotti, A.
Agricola
Right arrow Articles by Shearer, G.
Right arrow Articles by Mariotti, A.
Articles

15N Abundance of Nodules as an Indicator of N Metabolism in N2-Fixing Plants 1

Georgia Shearer, Lori Feldman, Barbara A. Bryan, Jerri L. Skeeters, Daniel H. Kohl, Nöelle Amarger, Françoise Mariotti and André Mariotti

Biology Department, Washington University, St. Louis, Missouri 63130, Laboratoire de Microbiologie des Sols, Institut National de la Recherche Agronomique, 21034, Dijon, France, Université Pierre et Marie Curie, Départment de Géologie Dynamique, 75230, Paris, France

This paper expands upon previous reports of 15N elevation in nodules (compared to other tissues) of N2-fixing plants. N2-Fixing nodules of Glycine max (soybeans), Vigna unguiculata (cowpea), Phaseolus vulgaris (common bean), Phaseolus coccineus (scarlet runner bean), Prosopis glandulosa (mesquite), and Olneya tesota (desert ironwood) were enriched in 15N. Nodules of Vicia faba (fava beans), Arachis hypogaea (peanut), Trifolium pratense (red clover), Pisum sativum (pea), Lathyrus sativus (grass pea), Medicago sativa (alfalfa), and Lupinus mutabilis (South American lupine) were not; nor were the nodules of nine species of N2-fixing nonlegumes. The nitrogen of ineffective nodules of soybeans and cowpeas was not enriched in 15N. Thus, 15N elevation in nodules of these plants depends on active N2-fixation. Results obtained so far on the generality of 15N enrichment in N2-fixing nodules suggest that only the nodules of plants which actively fix N2 and which transport allantoin or allantoic acid exhibit 15N enrichment.

1 Funded in part by the National Science Foundation, Grant PCM 7823270 and in part by United States Department of Agriculture Grant 59-2294-720-0.




This article has been cited by other articles:


Home page
 J Exp BotHome page
W. Wanek and S. K. Arndt
Difference in {delta}15N signatures between nodulated roots and shoots of soybean is indicative of the contribution of symbiotic N2 fixation to plant N
J. Exp. Bot., May 1, 2002; 53(371): 1109 - 1118.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY THE PLANT CELL
Copyright © 1982 by the American Society of Plant Biologists