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.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Adams D. O., Yang S. F. Ethylene biosynthesis: Identification of 1-aminocyclopropane-1-carboxylic acid as an intermediate in the conversion of methionine to ethylene. Proc Natl Acad Sci U S A. 1979 Jan;76(1):170–174. doi: 10.1073/pnas.76.1.170. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Apelbaum A., Burg S. P. Effect of Ethylene on Cell Division and Deoxyribonucleic Acid Synthesis in Pisum sativum. Plant Physiol. 1972 Jul;50(1):117–124. doi: 10.1104/pp.50.1.117. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bhuvaneswari T. V., Bhagwat A. A., Bauer W. D. Transient susceptibility of root cells in four common legumes to nodulation by rhizobia. Plant Physiol. 1981 Nov;68(5):1144–1149. doi: 10.1104/pp.68.5.1144. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Carroll B. J., McNeil D. L., Gresshoff P. M. A Supernodulation and Nitrate-Tolerant Symbiotic (nts) Soybean Mutant. Plant Physiol. 1985 May;78(1):34–40. doi: 10.1104/pp.78.1.34. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Carroll B. J., McNeil D. L., Gresshoff P. M. Isolation and properties of soybean [Glycine max (L.) Merr.] mutants that nodulate in the presence of high nitrate concentrations. Proc Natl Acad Sci U S A. 1985 Jun;82(12):4162–4166. doi: 10.1073/pnas.82.12.4162. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Djordjevic S. P., Ridge R. W., Chen H. C., Redmond J. W., Batley M., Rolfe B. G. Induction of pathogenic-like responses in the legume Macroptilium atropurpureum by a transposon-induced mutant of the fast-growing, broad-host-range Rhizobium strain NGR234. J Bacteriol. 1988 Apr;170(4):1848–1857. doi: 10.1128/jb.170.4.1848-1857.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ecker J. R., Davis R. W. Plant defense genes are regulated by ethylene. Proc Natl Acad Sci U S A. 1987 Aug;84(15):5202–5206. doi: 10.1073/pnas.84.15.5202. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gremaud M. F., Harper J. E. Selection and initial characterization of partially nitrate tolerant nodulation mutants of soybean. Plant Physiol. 1989 Jan;89(1):169–173. doi: 10.1104/pp.89.1.169. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hardy R. W., Holsten R. D., Jackson E. K., Burns R. C. The acetylene-ethylene assay for n(2) fixation: laboratory and field evaluation. Plant Physiol. 1968 Aug;43(8):1185–1207. doi: 10.1104/pp.43.8.1185. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kosslak R. M., Bohlool B. B. Suppression of nodule development of one side of a split-root system of soybeans caused by prior inoculation of the other side. Plant Physiol. 1984 May;75(1):125–130. doi: 10.1104/pp.75.1.125. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sargent L., Huang S. Z., Rolfe B. G., Djordjevic M. A. Split-Root Assays Using Trifolium subterraneum Show that Rhizobium Infection Induces a Systemic Response That Can Inhibit Nodulation of Another Invasive Rhizobium Strain. Appl Environ Microbiol. 1987 Jul;53(7):1611–1619. doi: 10.1128/aem.53.7.1611-1619.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]