KabirO'HalloranFylesEtAl1998

Référence

Kabir, Z., O'Halloran, I.P., Fyles, J.W. and Hamel, C. (1998) Dynamics of the mycorrhizal symbiosis of corn (Zea mays L.): Effects of host physiology, tillage practice and fertilization on spatial distribution of extra-radical mycorrhizal hyphae in the field. Agriculture, Ecosystems and Environment, 68(1-2):151-163.

Résumé

Tillage and fertilization may reduce the abundance of indigenous arbuscular mycorrhizal (AM) fungi in agricultural field soils. The dynamics of hyphal abundance in soil were studied over two growing seasons at a site in eastern Canada in a corn crop grown in a sandy loam soil and over one growing season in a corn crop grown in a clay soil. Experimental plots in a long-term tillage experiment, had been managed under no-tillage (NT), reduced tillage (RT) and conventional tillage (CT) for 11 years. Soil receiving each of these tillage treatments also received either inorganic (N and K) or organic (liquid dairy manure) fertilizer. Soil samples were collected from different places within each plot: on the plant row, at 18.75 cm from the row (quarter of the inter-row distance) and in between two rows (mid-row, i.e., 37.5 cm from the adjacent rows). Plant and soil samples were taken at the 12-14 leaf stage of corn (June), at silking stage (August) and at harvest (October), in order to measure the fluctuation in soil hyphal densities and plant nutrients concentrations during the season. Densities of total and viable AM hyphae were greatest in the row and lowest in the mid-row. Hyphal density on the row increased steeply from 12-14 leaf stage to silking stage and decreased thereafter. No significant fluctuation of hyphal abundance was observed in the mid-row, suggesting a prevalence of AM hyphae on the row. Hyphal densities were higher in NT soil than in CT-soil, while RT soil contained intermediate hyphal densities. The highest corn P, Zn and Cu concentrations were observed in NT and RT treatments concurrently with the highest hyphal densities. Concentrations of K, Ca and Mg did not change with tillage or fertilization type. Manure application significantly increased the densities of total and viable hyphae in the clay soil.

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@ARTICLE { KabirO'HalloranFylesEtAl1998,
    AUTHOR = { Kabir, Z. and O'Halloran, I.P. and Fyles, J.W. and Hamel, C. },
    TITLE = { Dynamics of the mycorrhizal symbiosis of corn (Zea mays L.): Effects of host physiology, tillage practice and fertilization on spatial distribution of extra-radical mycorrhizal hyphae in the field },
    JOURNAL = { Agriculture, Ecosystems and Environment },
    YEAR = { 1998 },
    VOLUME = { 68 },
    PAGES = { 151-163 },
    NUMBER = { 1-2 },
    NOTE = { 01678809 (ISSN) Cited By (since 1996): 19 Export Date: 26 April 2007 Source: Scopus CODEN: AEEND doi: 10.1016/S0167-8809(97)00155-2 Language of Original Document: English Correspondence Address: Kabir, Z.; Department of Horticulture; Penn State University; 102 Tyson Building University Park, PA 16802, United States; email: mzk5@psu.edu References: Abbott, L.K., Robson, A.D., De Boer, G., The effects of phosphorus on the formation of hyphae in soil by the vesicular-arbuscular mycorrhizal fungus Glomus fasiculatum (1984) New Phytol., 97, pp. 437-446; Anderson, E.L., Millner, P.D., Kunishi, H.M., Maize root length density and mycorrhizal infection as influenced by tillage and soil phosphorus (1987) J. Plant Nutr., 10, pp. 1349-1356; (1990) SAS Institute, SAS/STAT User's Guide, 2. , Anonymous 4th edn., SAS Institute. Cary, NC, USA; Bethlenfalvay, G.J., Barea, J.M., Mycorrhizae in sustainable agriculture: I. Effects on seed yield and soil aggregation (1994) Am. J. Alternative Agric., 9, pp. 157-161; Brundrett, M.C., Piche?, Y., Peterson, R.L., A development study of the early stages in vesicular-arbuscular mycorrhiza formation (1985) Can. J. Bot., 63, pp. 184-194; Bu?rkert, B., Robson, A., 65Zn uptake in subterranean clover (Trifolium subterraneum L.) by three vesicular-arbuscular mycorrhizal fungi in a root-free sandy soil (1994) Soil Biol. Biochem., 26, pp. 1117-1124; Evans, D.G., Miller, M.H., Vesicular-arbuscular mycorrhizas and the soil-disturbance-induced reduction of nutrients absorption in maize: I. Causal relations (1988) New Phytol., 110, pp. 67-74; Evans, D.G., Miller, M.H., The role of the external mycelial network in the effect of soil disturbance upon vesicular-arbuscular colonization of maize (1990) New Phytol., 114, pp. 65-71; Fairchild, G.L., Miller, M.H., Vesicular-arbuscular mycorrhizas and the soil disturbance induced reduction of nutrient absorption in maize: III. Influence of P amendments to soil (1990) New Phytol., 114, pp. 641-650; Hardie, K., Leyton, L., The influence of vesicular-arbuscular mycorrhiza on growth and water relations of red clover: I. In phosphate deficient soil (1981) New Phytol., 89, pp. 599-608; Harley, J.L., The significance of mycorrhiza (1989) Mycol. Res., 92, pp. 129-139; Jackson, M.L., (1958) Soil Chemical Analysis, p. 448. , Prentice-Hall, Englewood Cliffs, NJ; Jasper, D.A., Abbott, L.K., Robson, A.D., Soil disturbance reduces the infectivity of external hyphae of VA mycorrhizal fungi (1989) New Phytol., 112, pp. 93-99; Jasper, D.A., Abbott, L.K., Robson, A.D., Hyphae of a vesicular arbuscular mycorrhizal fungus maintain infectivity in dry soil, except when the soil is disturbed (1989) New Phytol., 112, pp. 101-107; Kabir, Z., O'Halloran, I.P., Hamel, C., The proliferation of fungal hyphae in soils supporting mycorrhizal and non-mycorrhizal plants (1996) Mycorrhiza, 6, pp. 477-480; Khan, A.G., The occurrence of mycorrhizas in halophytes, hydrophytes and xerophytes, and endogone spores in adjacent soils (1974) J. Gen. Microbiol., 81, pp. 7-14; Krishna, K.R., Shetty, K.G., Dart, P.J., Andrews, D.J., Genotype dependent variation in mycorrhizal colonization and response to inoculation of pearl millet (1985) Plant Soil, 86, pp. 113-125; Land, S., Scho?nbeck, F., Influence of different soil types on abundance and seasonal dynamics of vesicular-arbuscular mycorrhizal fungi in arable soils of North Germany (1991) Mycorrhiza, 1, pp. 39-44; Li, X.L., George, E., Marschner, H., Extension of the phosphorus depletion zone in VA-mycorrhizal white clover in a calcareous soil (1991) Plant Soil, 136, pp. 41-48; Lo?pez-Sanchez, M.E., Honrubia, M., Seasonal variation of vesicular-arbuscular mycorrhizae in eroded soils from southern Spain (1992) Mycorrhiza, 2, pp. 33-39; McGonigle, T.P., Miller, M.H., Mycorrhizal development and phosphorus absorption in maize under conventional and reduced tillage (1993) Soil Sci. Soc. Am. J., 57, pp. 1002-1006; McGonigle, T.P., Evans, D.G., Miller, M.H., Effect of degree of soil disturbance on mycorrhizal colonization and phosphorus absorption by maize in growth chamber and field experiment (1990) New Phytol., 116, pp. 629-636; Mehlich, A., Mehlich-III soil test extractant: A modification of Mehlich-II extractant (1984) Comm. Soil Sci. Plant Anal., 15, pp. 1409-1416; Menge, J.A., Johnson, E.L.V., Platt, R.G., Mycorrhizal dependency of several citrus cultivars under three nutrient regimes (1978) New Phytol., 81, pp. 553-559; Mengel, D.B., Barber, S.A., Development and distribution of the corn root system under field conditions (1974) Agron. J., 66, pp. 341-344; O'Halloran, I.P., (1982) MSc Thesis, , Department of Land Resource Development. University of Guelph, Guelph, Ontario, Canada; O'Halloran, I.P., Miller, M.H., Arnold, G., Absorption of P by corn (Zea mays L.) as influenced by soil disturbance (1986) Can. J. Soil Sci., 66, pp. 641-653; Steel, R.G.D., Torrie, J.H., Principles and Procedures of Statistics (1980) A Biometrical Approach (2nd Edn.), pp. 394-397. , McGraw-Hill, New York; Sylvia, D.M., Quantification of external hyphae of vesicular-arbuscular mycorrhizal fungi (1992) Methods in Microbiology, 24, pp. 53-65. , In: Norris, J.R., Read, D.J., Varma, A.K. (Eds.) Academic Press, London; Thomas, R.L., Sheard, R.W., Moyer, J.R., Comparison of conventional and automated procedures for nitrogen, phosphorus, and potassium analysis of plant material using a single digestion (1967) Agron. J., 59, pp. 240-243; Thompson, J.P., Inoculation with vesicular-arbuscular mycorrhizal fungi from cropped soil overcomes long-fallow disorder of linseed (Linum usitatissimum L.) by improving P and Zn uptake (1994) Soil Biol. Biochem., 26, pp. 1133-1143; Tisdale, S.L., Nelson, W.L., Beaton, J., (1985) Soil Fertility and Fertilizers (4th Edn.), 102. , Macmillan, New York 252 pp; Wiesler, F., Horst, W.J., Differences among maize cultivars in the utilization of soil nitrate and the related losses of nitrate through leaching (1993) Plant Soil, 151, pp. 193-203; Zhang, F., Hamel, C., Kianmehr, H., Smith, D.L., Root-zone temperature and soybean [Glycine max (L.) Merr.] vesicular-arbuscular mycorrhizal fungi: Development and interactions with the nitrogen fixing symbiosis (1995) Environ. Exp. Bot., 35, pp. 287-298. },
    ABSTRACT = { Tillage and fertilization may reduce the abundance of indigenous arbuscular mycorrhizal (AM) fungi in agricultural field soils. The dynamics of hyphal abundance in soil were studied over two growing seasons at a site in eastern Canada in a corn crop grown in a sandy loam soil and over one growing season in a corn crop grown in a clay soil. Experimental plots in a long-term tillage experiment, had been managed under no-tillage (NT), reduced tillage (RT) and conventional tillage (CT) for 11 years. Soil receiving each of these tillage treatments also received either inorganic (N and K) or organic (liquid dairy manure) fertilizer. Soil samples were collected from different places within each plot: on the plant row, at 18.75 cm from the row (quarter of the inter-row distance) and in between two rows (mid-row, i.e., 37.5 cm from the adjacent rows). Plant and soil samples were taken at the 12-14 leaf stage of corn (June), at silking stage (August) and at harvest (October), in order to measure the fluctuation in soil hyphal densities and plant nutrients concentrations during the season. Densities of total and viable AM hyphae were greatest in the row and lowest in the mid-row. Hyphal density on the row increased steeply from 12-14 leaf stage to silking stage and decreased thereafter. No significant fluctuation of hyphal abundance was observed in the mid-row, suggesting a prevalence of AM hyphae on the row. Hyphal densities were higher in NT soil than in CT-soil, while RT soil contained intermediate hyphal densities. The highest corn P, Zn and Cu concentrations were observed in NT and RT treatments concurrently with the highest hyphal densities. Concentrations of K, Ca and Mg did not change with tillage or fertilization type. Manure application significantly increased the densities of total and viable hyphae in the clay soil. },
    KEYWORDS = { Arbuscular mycorrhizal fungi Corn nutrition Extra-radical hyphal density Manure Tillage arbuscular mycorrhiza corn fertilization hyphal density mycorrhiza tillage Canada, (East) Zea mays },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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