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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
19/04/2002 |
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Data da última atualização: |
28/05/2024 |
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Autoria: |
BOUGHER, N. L.; GROVE, T. S.; MALAJCZUK, N. |
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Título: |
Growth and phosphorus acquisition of karri (Eucalyptus diversicolor F. Muell.) seedling inoculated with ectomycorrhizal fungi in relation to phosphorus supply. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
New Phytologist, Cambridge, v. 114, n. 1, p. 77-86, 1990. |
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Idioma: |
Inglês |
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Conteúdo: |
Growth and phosphorus acquisition of pot-grown seedlings of E. diversicolor were examined following inoculation with four ectomycorrhizal fungi - Descolea maculata (two isolates), Pisolithus tinctorius, and Laccaria laccata. Seedlings were raised in steam-sterilized sand to which 13 rates of phosphorus (0-100 mg P/kg soil) were applied. P. tinctorius produced no plant growth response. L. laccata produced the largest growth response. Responses were greatest at low rates of application of P to soil. There was no effect of the fungi on growth with P application above 28 mg P/kg soil. A threshold effect (no increase in growth with increasing additions of P) characteristic of non-mycorrhizal seedlings was eliminated by mycorrhizal infection. Mycorrhizal inoculation increased P content of plant tissues with sub-optimal P supply. The effect of mycorrhizas on seedling P status diminished with increasing soil P. Frequency of infection for all fungi was low in soils with no additional P, and greatest with the addition of 2 mg P/kg soil (L. laccata and D. maculata isolate A), or 4 mg P/kg soil (D. maculata isolate B). Infection was reduced with increasing soil P, and not evident at 36 mg P/kg soil or higher. L. laccata had higher infection frequency and mycorrhizal root length at all rates of soil P than the D. maculata isolates. Two fungi produced basidiomes. This occurred with soil P application ranging from 4 to 20 mg P/kg soil for D. maculata (isolate B), and at 4 to 28 mg P/kg soil for L. laccata. MenosGrowth and phosphorus acquisition of pot-grown seedlings of E. diversicolor were examined following inoculation with four ectomycorrhizal fungi - Descolea maculata (two isolates), Pisolithus tinctorius, and Laccaria laccata. Seedlings were raised in steam-sterilized sand to which 13 rates of phosphorus (0-100 mg P/kg soil) were applied. P. tinctorius produced no plant growth response. L. laccata produced the largest growth response. Responses were greatest at low rates of application of P to soil. There was no effect of the fungi on growth with P application above 28 mg P/kg soil. A threshold effect (no increase in growth with increasing additions of P) characteristic of non-mycorrhizal seedlings was eliminated by mycorrhizal infection. Mycorrhizal inoculation increased P content of plant tissues with sub-optimal P supply. The effect of mycorrhizas on seedling P status diminished with increasing soil P. Frequency of infection for all fungi was low in soils with no additional P, and greatest with the addition of 2 mg P/kg soil (L. laccata and D. maculata isolate A), or 4 mg P/kg soil (D. maculata isolate B). Infection was reduced with increasing soil P, and not evident at 36 mg P/kg soil or higher. L. laccata had higher infection frequency and mycorrhizal root length at all rates of soil P than the D. maculata isolates. Two fungi produced basidiomes. This occurred with soil P application ranging from 4 to 20 mg P/kg soil for D. maculata (isolate B), and at 4 to 28 mg P/kg soi... Mostrar Tudo |
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Palavras-Chave: |
Aquisicao de fosforo; Basidiomes; Broadleaves; Descolea maculata; Ectomicorriza; Ectomycorrhiza; Growth; Mycorrhizas; Phosphorus uptake; Soil phosphorus. |
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Thesagro: |
Crescimento; Pisolithus Tinctorius; Solo. |
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Thesaurus Nal: |
Eucalyptus diversicolor; Laccaria laccata; mycorrhizal fungi; nutrition physiology; phosphorus; phosphorus fertilizers; plant nutrition; soil inoculation. |
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Categoria do assunto: |
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Marc: |
LEADER 02705naa a2200397 a 4500
001 1278737
005 2024-05-28
008 1990 bl uuuu u00u1 u #d
100 1 $aBOUGHER, N. L.
245 $aGrowth and phosphorus acquisition of karri (Eucalyptus diversicolor F. Muell.) seedling inoculated with ectomycorrhizal fungi in relation to phosphorus supply.$h[electronic resource]
260 $c1990
520 $aGrowth and phosphorus acquisition of pot-grown seedlings of E. diversicolor were examined following inoculation with four ectomycorrhizal fungi - Descolea maculata (two isolates), Pisolithus tinctorius, and Laccaria laccata. Seedlings were raised in steam-sterilized sand to which 13 rates of phosphorus (0-100 mg P/kg soil) were applied. P. tinctorius produced no plant growth response. L. laccata produced the largest growth response. Responses were greatest at low rates of application of P to soil. There was no effect of the fungi on growth with P application above 28 mg P/kg soil. A threshold effect (no increase in growth with increasing additions of P) characteristic of non-mycorrhizal seedlings was eliminated by mycorrhizal infection. Mycorrhizal inoculation increased P content of plant tissues with sub-optimal P supply. The effect of mycorrhizas on seedling P status diminished with increasing soil P. Frequency of infection for all fungi was low in soils with no additional P, and greatest with the addition of 2 mg P/kg soil (L. laccata and D. maculata isolate A), or 4 mg P/kg soil (D. maculata isolate B). Infection was reduced with increasing soil P, and not evident at 36 mg P/kg soil or higher. L. laccata had higher infection frequency and mycorrhizal root length at all rates of soil P than the D. maculata isolates. Two fungi produced basidiomes. This occurred with soil P application ranging from 4 to 20 mg P/kg soil for D. maculata (isolate B), and at 4 to 28 mg P/kg soil for L. laccata.
650 $aEucalyptus diversicolor
650 $aLaccaria laccata
650 $amycorrhizal fungi
650 $anutrition physiology
650 $aphosphorus
650 $aphosphorus fertilizers
650 $aplant nutrition
650 $asoil inoculation
650 $aCrescimento
650 $aPisolithus Tinctorius
650 $aSolo
653 $aAquisicao de fosforo
653 $aBasidiomes
653 $aBroadleaves
653 $aDescolea maculata
653 $aEctomicorriza
653 $aEctomycorrhiza
653 $aGrowth
653 $aMycorrhizas
653 $aPhosphorus uptake
653 $aSoil phosphorus
700 1 $aGROVE, T. S.
700 1 $aMALAJCZUK, N.
773 $tNew Phytologist, Cambridge$gv. 114, n. 1, p. 77-86, 1990.
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Registro original: |
Embrapa Florestas (CNPF) |
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