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


     

Plant Physiology 76:854-857 (1984)
© 1984 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 Web of Science
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 CrossRef
Right arrow Citing Articles via Web of Science (7)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Davis, L. C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Davis, L. C.
Agricola
Right arrow Articles by Davis, L. C.
Articles

Diffusion of Gases through Plant Tissues 1

Entry of Acetylene into Legume Nodules

Lawrence C. Davis

Department of Biochemistry, Kansas State University, Manhattan, Kansas 66506

I have measured acetylene diffusion through plant tissues including nodules from several species of legume—vetch, peas, soybeans, and Sesbania rostrata. The observed half-time for reequilibration of internal and external concentration is less than 1 minute for typical nodules. Inward diffusion of acetylene in air is rapid relative to the use of acetylene by nitrogenase so that diffusion of acetylene would not be a significant limiting factor for nitrogenase activity in air. However, under an atmosphere of Ar:O2 where there is no N2 reduction, the inward diffusion rate of acetylene into larger nodules could produce a measurable limitation of observed nitrogenase activity at low acetylene concentrations.

1 Supported by the Kansas Agricultural Experiment Station and a grant from the United States Department of Agriculture No. 83-CR-1-1301. This is Contribution No. 84-418-J from the Kansas Agricultural Experiment Station.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1984 by the American Society of Plant Biologists