RRC ID 838
Author Nishimura R, Ohmori M, Kawaguchi M.
Title The novel symbiotic phenotype of enhanced-nodulating mutant of Lotus japonicus: astray mutant is an early nodulating mutant with wider nodulation zone.
Journal Plant Cell Physiol.
Abstract We have isolated a novel enhanced-nodulating mutant astray (Ljsym77) from Lotus japonicus. The name astray derives from the non-symbiotic phenotype of this mutant, agravitropic lateral roots that go "astray" against gravity. In this report we evaluated the symbiotic aspects of this mutant in detail. The astray mutant developed approximately twice the number of nodules on a wider area of roots compared with the wild type. Furthermore, the astray mutant demonstrated early initiation of nodule development, which is an unprecedented symbiotic phenotype. The astray seedlings showed normal sensitivity to the general inhibitors of nodulation such as ethylene and nitrate. These results indicate that the astray mutant is distinct from the hypernodulating mutants reported previously, and that the ASTRAY gene acts as an early and negative regulator in the cascade of nodule development.
Volume 43(8)
Pages 853-9
Published 2002-8
PMID 12198187
MeSH Amino Acids, Cyclic / pharmacology Ethylenes / pharmacology Gene Expression Regulation, Plant Hypocotyl / drug effects Hypocotyl / growth & development Lotus / drug effects Lotus / genetics* Lotus / growth & development Lotus / microbiology Mutation Nitrates / pharmacology Phenotype Plant Roots / drug effects Plant Roots / genetics* Plant Roots / microbiology Potassium Compounds / pharmacology Rhizobiaceae / growth & development Symbiosis / drug effects Symbiosis / genetics* Symbiosis / physiology Time Factors
IF 3.929
Times Cited 38
Lotus / Glycine NA