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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
08/07/1992 |
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Data da última atualização: |
08/07/1992 |
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Autoria: |
GIANINAZZI, S.; GIANINAZZI-PEARSON, V.; DEXHEIMER, J. |
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Título: |
Enzymatic studies on the metabolism of vesicular-arbuscular mycorrhiza. III. Ultrastructural localization of acid and alkaline phosphatase in onion roots infected by Glomus mosseae (Nicol. & Gerd.). |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
New Phytologist, v.82, p.127-132, 1979. |
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Idioma: |
Inglês |
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Conteúdo: |
The structural distribution of acid and alkaline phosphatase in 6-week-old onion roots infected by Glomus mosseae has been investigated cytochemically. Significant acid phosphatase activity was only observed in the vacuolated, immature terminal arbuscule branches of the mycorrhizal whilst strong alkaline a-naphthyl phosphatase and b-glycerophosphatase activities were localized within the vacuoles of the mature arbuscular and intercellular hyphae. In the host cells neither acid nor alkaline phosphatase distribution was modified with vesicular-arbuscular mycorrhiza formation. These results are discussed in relation to previosly reported mycorrhiza-specific alkaline phosphatase (Gianinazzi-Pearson and Gianinazzi, 1976, 1978) and the metabolism of phosphorus in vesicular-arbuscular mycorrhizal systems. |
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Palavras-Chave: |
Fungus; Mycorrhiza. |
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Thesagro: |
Fungo; Glomus Mosseae; Micorriza. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01469naa a2200205 a 4500
001 1457673
005 1992-07-08
008 1979 bl --- 0-- u #d
100 1 $aGIANINAZZI, S.
245 $aEnzymatic studies on the metabolism of vesicular-arbuscular mycorrhiza. III. Ultrastructural localization of acid and alkaline phosphatase in onion roots infected by Glomus mosseae (Nicol. & Gerd.).
260 $c1979
520 $aThe structural distribution of acid and alkaline phosphatase in 6-week-old onion roots infected by Glomus mosseae has been investigated cytochemically. Significant acid phosphatase activity was only observed in the vacuolated, immature terminal arbuscule branches of the mycorrhizal whilst strong alkaline a-naphthyl phosphatase and b-glycerophosphatase activities were localized within the vacuoles of the mature arbuscular and intercellular hyphae. In the host cells neither acid nor alkaline phosphatase distribution was modified with vesicular-arbuscular mycorrhiza formation. These results are discussed in relation to previosly reported mycorrhiza-specific alkaline phosphatase (Gianinazzi-Pearson and Gianinazzi, 1976, 1978) and the metabolism of phosphorus in vesicular-arbuscular mycorrhizal systems.
650 $aFungo
650 $aGlomus Mosseae
650 $aMicorriza
653 $aFungus
653 $aMycorrhiza
700 1 $aGIANINAZZI-PEARSON, V.
700 1 $aDEXHEIMER, J.
773 $tNew Phytologist$gv.82, p.127-132, 1979.
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Registro original: |
Embrapa Soja (CNPSO) |
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