Work

Nodule Formation Is Stimulated by the Ethylene Inhibitor Aminoethoxyvinylglycine

Year: 1989

Type: article

Abstract: Previous researchers found that formation and function of nitrogen-fixing nodules on legume roots were severely inhibited by addition of exogenous ethylene. Nodule formation by Rhizobium meliloti on Medicago sativa was stimulated twofold when the ethylene biosynthesis inhibitor aminoethoxyvinylglycine (AVG) was added with the inoculum. Stimulation of nodule formation by AVG showed a similar concentration dependence as inhibition of ethylene biosynthesis, suggesting that the primary action of AVG is the inhibition of ethylene biosynthesis. When AVG was added 2 to 3 days after inoculation, the number of nodules formed was still increased. On a per plant basis, however, the average nitrogen fixation was unchanged by AVG treatment and was independent of nodule number.

Source: PLANT PHYSIOLOGY

DOI: 10.1104/pp.91.2.690

Authors: N. Kent Peters, Deborah K. Crist-Estes

Institution: The Ohio State University

Language: English

Topic: Legume Nitrogen Fixing Symbiosis

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: bronze

Funders: National Science Foundation, Ohio State University