Nitrogen Fixation in Peanut Nodules during Dark Periods and Detopped Conditions with Special Reference to Lipid Bodies
Year: 1991
Type: article
Abstract: The peanut plant (Arachis hypogaea L.), unlike other known legumes, can sustain nitrogen fixation when prolonged periods of darkness or detopping curtail the supply of photosynthate to the nodule. This ability to withstand photosynthate stress is attributed to the presence of lipid bodies in infected nodule cells. In both dark-treated and detopped plants, the lipid bodies show a gradual decrease in numbers, suggesting their utilization as a source of energy and carbon for nitrogen fixation. Lipolytic activity can be localized in the lipid bodies, and the existence of beta-oxidation pathway and, glyoxylate cycle is shown by the release of (14)CO(2) from (14)C lineoleoyl coenzyme A by the nodule homogenate.
Source: PLANT PHYSIOLOGY
DOI: 10.1104/pp.95.3.896
Authors: Abu-baker M. Siddique, Arya K. Bal
Institution: Memorial University of Newfoundland
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W2014749131