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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
22/06/1993 |
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Data da última atualização: |
21/03/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HUNGRIA, M.; PHILLIPS, D. A. |
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Afiliação: |
MARIANGELA HUNGRIA DA CUNHA, CNPSO; UNIVERSITY OF CALIFORNIA. |
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Título: |
Effects of a seed color mutation on rhizobial nod-gene-inducing flavonoids and nodulation in common bean. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Molecular Plant-Microbe Interactions, v. 6, n. 4, p. 418-422, 1993. |
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Idioma: |
Inglês |
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Conteúdo: |
A white-seeded mutant of common bean (Phaseolus vulgaris L. PI 165426WS) differed from its isogenic black-seeded parent, PI 165426CS, in the amounts and types of flavonoid nod-gene inducers released from the seed and in the pattern of root nodules formed by Rhizobium tropici CIAT 899 and by R. leguminosarum bv. phaseoli CNPAF 512. Comparisons of 14-day-old plants developing from black (CS) and white (WS) seeds showed that although there were no differences in any plant growth parameter measured, CS plants had at least 80% more nodules on the primary root. Rinsing seeds before planting decreased nodulation at the top of the primary root in CS, but not WS, seedlings. A direct role for seed compounds in the nodulation differences was supported by the fact thatrinses from CS seeds induced 10-fold higher beta-galactosidase activity from a nodA::lacZ fusion in R. leguminosarum bc. phaseoli than WS seed rinses. Analytical chemistry techniques showed that WS seeds lacked five nod-gene-inducing anthocyanins previously identified on CS seeds. WS seed rinses contained five nod-inducing flavonol glycosides released by CS seeds, but only 45% as much of those compounds was present. The nod-gene-inducing activity of WS root wxudates, however, was much more similar to that from CS roots both quantitatively and qualitatively. Adding 20 micromoles of malvidin-3-O-glucoside or quercetin-3-O-glucoside to WS seeds inoculated either with CIAT 899 or with CNPAF 512 increased nodulation by at least 40%, but malvidin and quercetin... MenosA white-seeded mutant of common bean (Phaseolus vulgaris L. PI 165426WS) differed from its isogenic black-seeded parent, PI 165426CS, in the amounts and types of flavonoid nod-gene inducers released from the seed and in the pattern of root nodules formed by Rhizobium tropici CIAT 899 and by R. leguminosarum bv. phaseoli CNPAF 512. Comparisons of 14-day-old plants developing from black (CS) and white (WS) seeds showed that although there were no differences in any plant growth parameter measured, CS plants had at least 80% more nodules on the primary root. Rinsing seeds before planting decreased nodulation at the top of the primary root in CS, but not WS, seedlings. A direct role for seed compounds in the nodulation differences was supported by the fact thatrinses from CS seeds induced 10-fold higher beta-galactosidase activity from a nodA::lacZ fusion in R. leguminosarum bc. phaseoli than WS seed rinses. Analytical chemistry techniques showed that WS seeds lacked five nod-gene-inducing anthocyanins previously identified on CS seeds. WS seed rinses contained five nod-inducing flavonol glycosides released by CS seeds, but only 45% as much of those compounds was present. The nod-gene-inducing activity of WS root wxudates, however, was much more similar to that from CS roots both quantitatively and qualitatively. Adding 20 micromoles of malvidin-3-O-glucoside or quercetin-3-O-glucoside to WS seeds inoculated either with CIAT 899 or with CNPAF 512 increased nodulation by at least... Mostrar Tudo |
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Palavras-Chave: |
Bean; Flavanoid. |
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Thesagro: |
Feijão; Flavonóide; Nodulação; Phaseolus Vulgaris; Rhizobium Leguminosarum. |
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Thesaurus Nal: |
nodulation. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02212naa a2200229 a 4500
001 1457771
005 2025-03-21
008 1993 bl uuuu u00u1 u #d
100 1 $aHUNGRIA, M.
245 $aEffects of a seed color mutation on rhizobial nod-gene-inducing flavonoids and nodulation in common bean.$h[electronic resource]
260 $c1993
520 $aA white-seeded mutant of common bean (Phaseolus vulgaris L. PI 165426WS) differed from its isogenic black-seeded parent, PI 165426CS, in the amounts and types of flavonoid nod-gene inducers released from the seed and in the pattern of root nodules formed by Rhizobium tropici CIAT 899 and by R. leguminosarum bv. phaseoli CNPAF 512. Comparisons of 14-day-old plants developing from black (CS) and white (WS) seeds showed that although there were no differences in any plant growth parameter measured, CS plants had at least 80% more nodules on the primary root. Rinsing seeds before planting decreased nodulation at the top of the primary root in CS, but not WS, seedlings. A direct role for seed compounds in the nodulation differences was supported by the fact thatrinses from CS seeds induced 10-fold higher beta-galactosidase activity from a nodA::lacZ fusion in R. leguminosarum bc. phaseoli than WS seed rinses. Analytical chemistry techniques showed that WS seeds lacked five nod-gene-inducing anthocyanins previously identified on CS seeds. WS seed rinses contained five nod-inducing flavonol glycosides released by CS seeds, but only 45% as much of those compounds was present. The nod-gene-inducing activity of WS root wxudates, however, was much more similar to that from CS roots both quantitatively and qualitatively. Adding 20 micromoles of malvidin-3-O-glucoside or quercetin-3-O-glucoside to WS seeds inoculated either with CIAT 899 or with CNPAF 512 increased nodulation by at least 40%, but malvidin and quercetin...
650 $anodulation
650 $aFeijão
650 $aFlavonóide
650 $aNodulação
650 $aPhaseolus Vulgaris
650 $aRhizobium Leguminosarum
653 $aBean
653 $aFlavanoid
700 1 $aPHILLIPS, D. A.
773 $tMolecular Plant-Microbe Interactions$gv. 6, n. 4, p. 418-422, 1993.
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| 1. |  | LIMA, R. R. P. N.; NAKASU, E. Y. T.; BLAWID, R.; VARGAS, O. R.; SOUSA, B. M. C. de; PEREIRA, W. de S.; FERREIRA, Y. F. M.; INOUE-NAGATA, A. K. Análise de sequenciamento revela que pimentão é um novo hospedeiro potencial de potato leafroll virus. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 53., Brasília, DF, 2023. Anais... Brasília, DF: Sociedade Brasileira de Fitopatologia, 2023. p. 699.| Tipo: Resumo em Anais de Congresso |
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