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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
02/04/2002 |
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Data da última atualização: |
21/05/2024 |
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Autoria: |
PERRY, D. A.; MARGOLIS, H.; CHOQUETTE, C.; MOLINA, R.; TRAPPE, J. M. |
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Título: |
Ectomycorrhizal mediation of competion between coniferous tree species. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
New Phytologist, New York, v. 112, n. 4, p. 501-512, 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
To test the effect of ectomycorrhizal fungi (EMF) on interactions between host plants, Douglas-fir (Pseudotsuga menziesii) and pine (Pinus ponderosa) seedlings were grown in replacement series in pasteurized soil with: no EMF added; two EMF species added - Rhizopogon vinicolor (specific to Douglas-fir) and R. ochraceorubens (specific to pine); and four EMF species added - the two Rhizopogon species plus two host generalists, Laccaria laccata and Hebeloma crustuliniforme. A replacement series in unpasteurized forest soil was also included. Seedlings without added EMF were colonized by the greenhouse contaminant, Thelephora terrestris. Without added EMF (but with T. terrestris), the tree species mutually inhibited one another, producing relative yield totals significantly <1; with EMF added, mutual inhibition disappeared. With four EMF species added, Douglas-fir seedlings were significantly larger in mixture than in monoculture, with no corresponding decrease in the size of pine seedlings; this was due solely to seedlings with L. laccata, which apparently enhanced nitrogen (N) and phosphorus (P) uptake by Douglas-fir at the expense of luxury consumption by pine. Graphical analysis suggested that better growth of Douglas-fir in mixture with EMF added was related to improved P nutrition. Both N and P nutrition of pine was better in mixture with two than no EMF species added; there was no clear nutrient effect with four EMF species added. Results indicate that EMF can reduce competition between plant species and perhaps increase overall community P uptake. However, patterns were specific to both EMF and tree species and were quite different in unpasteurized soils. Hence generalizations about the effects of EMF on plant-plant interactions must be made cautiously. MenosTo test the effect of ectomycorrhizal fungi (EMF) on interactions between host plants, Douglas-fir (Pseudotsuga menziesii) and pine (Pinus ponderosa) seedlings were grown in replacement series in pasteurized soil with: no EMF added; two EMF species added - Rhizopogon vinicolor (specific to Douglas-fir) and R. ochraceorubens (specific to pine); and four EMF species added - the two Rhizopogon species plus two host generalists, Laccaria laccata and Hebeloma crustuliniforme. A replacement series in unpasteurized forest soil was also included. Seedlings without added EMF were colonized by the greenhouse contaminant, Thelephora terrestris. Without added EMF (but with T. terrestris), the tree species mutually inhibited one another, producing relative yield totals significantly <1; with EMF added, mutual inhibition disappeared. With four EMF species added, Douglas-fir seedlings were significantly larger in mixture than in monoculture, with no corresponding decrease in the size of pine seedlings; this was due solely to seedlings with L. laccata, which apparently enhanced nitrogen (N) and phosphorus (P) uptake by Douglas-fir at the expense of luxury consumption by pine. Graphical analysis suggested that better growth of Douglas-fir in mixture with EMF added was related to improved P nutrition. Both N and P nutrition of pine was better in mixture with two than no EMF species added; there was no clear nutrient effect with four EMF species added. Results indicate that EMF can reduce comp... Mostrar Tudo |
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Palavras-Chave: |
Competicao; Ectomicorriza; Foliar nutrition; Mycorrhizas; Phosphorus uptake; Pines; Solo esterelizado. |
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Thesagro: |
Pinus Ponderosa. |
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Thesaurus Nal: |
allelopathy; biotechnology; conifers; ecology; ectomycorrhizae; forest trees; Oregon; plant competition; pot culture; Pseudotsuga menziesii; Rhizopogon; seedlings; woody plants. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02893naa a2200421 a 4500
001 1278622
005 2024-05-21
008 1989 bl uuuu u00u1 u #d
100 1 $aPERRY, D. A.
245 $aEctomycorrhizal mediation of competion between coniferous tree species.$h[electronic resource]
260 $c1989
520 $aTo test the effect of ectomycorrhizal fungi (EMF) on interactions between host plants, Douglas-fir (Pseudotsuga menziesii) and pine (Pinus ponderosa) seedlings were grown in replacement series in pasteurized soil with: no EMF added; two EMF species added - Rhizopogon vinicolor (specific to Douglas-fir) and R. ochraceorubens (specific to pine); and four EMF species added - the two Rhizopogon species plus two host generalists, Laccaria laccata and Hebeloma crustuliniforme. A replacement series in unpasteurized forest soil was also included. Seedlings without added EMF were colonized by the greenhouse contaminant, Thelephora terrestris. Without added EMF (but with T. terrestris), the tree species mutually inhibited one another, producing relative yield totals significantly <1; with EMF added, mutual inhibition disappeared. With four EMF species added, Douglas-fir seedlings were significantly larger in mixture than in monoculture, with no corresponding decrease in the size of pine seedlings; this was due solely to seedlings with L. laccata, which apparently enhanced nitrogen (N) and phosphorus (P) uptake by Douglas-fir at the expense of luxury consumption by pine. Graphical analysis suggested that better growth of Douglas-fir in mixture with EMF added was related to improved P nutrition. Both N and P nutrition of pine was better in mixture with two than no EMF species added; there was no clear nutrient effect with four EMF species added. Results indicate that EMF can reduce competition between plant species and perhaps increase overall community P uptake. However, patterns were specific to both EMF and tree species and were quite different in unpasteurized soils. Hence generalizations about the effects of EMF on plant-plant interactions must be made cautiously.
650 $aallelopathy
650 $abiotechnology
650 $aconifers
650 $aecology
650 $aectomycorrhizae
650 $aforest trees
650 $aOregon
650 $aplant competition
650 $apot culture
650 $aPseudotsuga menziesii
650 $aRhizopogon
650 $aseedlings
650 $awoody plants
650 $aPinus Ponderosa
653 $aCompeticao
653 $aEctomicorriza
653 $aFoliar nutrition
653 $aMycorrhizas
653 $aPhosphorus uptake
653 $aPines
653 $aSolo esterelizado
700 1 $aMARGOLIS, H.
700 1 $aCHOQUETTE, C.
700 1 $aMOLINA, R.
700 1 $aTRAPPE, J. M.
773 $tNew Phytologist, New York$gv. 112, n. 4, p. 501-512, 1989.
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| 5. | | FREITAS-VANZO, A. T. de; SILVA, C. de C. da; NOVAES, T. G. de; WALZ, D. M.; MARCELINO-GUIMARÃES, F. C.; KUWAHARA, M. K.; MOLINA, R. de O.; LEITE JUNIOR, R. P. Evaluation of disease severity caused by Bean golden mosaic virus in different bean cultivars. Canadian Journal of Plant Pathology, v. 43, N. 1, p. 172-178, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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| Registros recuperados : 6 | |
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