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Ethylene antagonists increase nodulation on sym 5 pea mutants


, : Ethylene antagonists increase nodulation on sym 5 pea mutants. Progress in plant growth regulations Proceedings of the 14th International Conference on Plant Growth Substances, Amsterdam, Netherlands, 21-26 July 1991: 530-533

Seeds of Sparkle and the symbiosis (sym5) mutant, E2 (phenotypically normal, poor nodulation at a root temperature of 20 degrees C and increased nodulation at 12 degrees C), were planted in vermiculite inoculated with Rhizobium leguminosarum. Roots from 7-day-old seedlings were treated with the ethylene inhibitors Ag2SO4, aminoethoxyvinylglycine (AVG) or Co(NO3)2 and nodules were counted at 28 days. AVG, Co2+ or Ag+ increased nodulation of E2 at 20 degrees C but not Sparkle.

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Related references

Fearn J.C.; Larue T.A., 1990: Nodulation of pea sym 5 mutants is restored by ethylene inhibitors. Flores, H E , R N Arteca And J C Shannon (Ed ) Current Topics in Plant Physiology: An American Society Of Plant Physiologists Series, Vol 5 Polyamines And Ethylene: Biochemistry, Physiology, And Interactions; 5th Annual Penn State Symposium in Plant Physiology, University Park, Pennsylvania, Usa, May 17-19, Xv+425p American Society Of Plant Physiologists: Rockville, Maryland, Usa Illus Paper 329-331

Fearn, J.C.; Larue, T.A., 1991: Ethylene Inhibitors Restore Nodulation to sym 5 Mutants of Pisum sativum L. cv Sparkle. The sym 5 mutants of pea, Pisum sativum L. cv Sparkle, do not differ in growth habit from their normal parent and nodulate poorly at a root temperature of 20 degrees C. If inhibitors of ethylene formation or action (Co(2+), aminoethoxyvinylglycine...

Fearn, J.C.; Larue, T.A., 1991: Ethylene inhibitors restore nodulation to sym 5 mutants of pisum sativum l. cultivar sparkle. The sym 5 mutants of pea, Pisum sativum L. cv Sparkle, do not differ in growth habit from their normal parent and nodulate poorly at a root temperature of 20.degree.C. If inhibitors of ethylene formation or action (Co2+, aminoethoxyvinylglycine, o...

Ma, W.; Penrose, D.M.; Glick, B.R., 2003: Strategies used by rhizobia to lower plant ethylene levels and increase nodulation. Agriculture depends heavily on biologically fixed nitrogen from the symbiotic association between rhizobia and plants. Molecular nitrogen is fixed by differentiated forms of rhizobia in nodules located on plant roots. The phytohormone, ethylene, a...

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Van-Workum, W., A.T.; Van-Brussel, A., A.N.; Tak, T.; Wijffelman, C., A.; Kijne, J., W., 1995: Ethylene prevents nodulation of Vicia sativa ssp. nigra by exopolysaccharide-deficient mutants of Rhizobium leguminosarum bv. viciae. Exopolysaccharide-deficient mutants (Exo mutants) of Rhizobium leguminosarum bv. viciae are usually impaired in root nodule formation on their host plants. However, we found that Vicia sativa ssp. nigra (vetch) could be nodulated by such mutants i...

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