Effects of copper on the metabolism of<sup>14</sup>C-labeled glucose in soil in relation to amendment with organic materials

Aoyama, Masakazu; Itaya, Seiji

doi:10.1080/00380768.1995.10419581

Cited by 25 publications

(9 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, those compounds may be toxic to soil microorganisms when in high concentrations and a certain amount of time may be necessary for the microbiota to recover. When exposed to a contaminant, indigenous microbiota may even enter and remain in a dormant state; another strategy is to maintain its metabolic rates in detriment of cellular multiplication [46]. Those strategies turn microbiota into non-culturable.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of bioventing on a gasoline?ethanol contaminated undisturbed residual soil

Österreicher-Cunha

Vargas

Guimarães

et al. 2004

Journal of Hazardous Materials

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Evaluation of bioventing on a gasoline?ethanol contaminated undisturbed residual soil

Österreicher-Cunha

Vargas

Guimarães

et al. 2004

Journal of Hazardous Materials

View full text Add to dashboard Cite

“…The effects of heavy metal accumulation on the size of the soil microbial biomass have been investigated in soils treated with sewage sludge and adverse effects have been recognized (Brookes and McGrath 1984;Brookes 1991b, 1993). We also reported that the size of the microbial biomass was considerably reduced by Cu enrichment (Aoyama et al 1993;Aoyama and Itaya 1995). Furthermore, heavy metals reduce microbial activities in soil, i.e., soil respiration, ammonification, and enzyme activities (Babich and Stotzky 1985;B~i~ith 1989).…”

mentioning

confidence: 94%

Factors Affecting Microbial Biomass and Dehydrogenasc Activity in Apple Orchard Soils with Heavy Metal Accumulation

Aoyama

Nagumo

1996

Soil Science and Plant Nutrition

Self Cite

View full text Add to dashboard Cite

“…Aoyama and Itaya (1995) reported that the mineralization of added glucose was not significantly affected by the presence of a large amount of Cu (2,000 mg kg -1 soil). Tyler (1975) found that the rates of decomposition of added starch and cellulose, but not of glucose and proteins, decreased in a soil polluted with Zn and Cu.…”

Section: E C O M P O S I T I O N O F O R C H a R D G R A S S In S Omentioning

confidence: 99%

Effects of heavy metal accumulation associated with pesticide application on the decomposition of cellulose and orchard grass in soils

Aoyama

Kuroyanagi

1996

Soil Science and Plant Nutrition

Self Cite

View full text Add to dashboard Cite

The effects of heavy metal accumulation associated with the application of Bordeaux mixtures and lead arsenate on the decomposition of cellulose powder and orchard grass shoots in soils were investigated by laboratory incubation experiments. The largest amounts of total Cu, Pb, and As found in the soils used were 1,108, 1,271, and 205 mg kg -1 soil, respectively, and the amounts of Cu and Pb extracted with 0.1 M CaC12 were each negatively correlated with the soil pH. The rates of decomposition and C mineralization of the cellulose powder added to the soils decreased exponentially with the amount of 0.1 M CaC12-extractable Cu and increased exponentially with the soil pH over the 35-d period of incubation, though they did not show a close relation to the total amounts of heavy metals. When the pH was modified in acid soils by the addition of Ca(OH)2, the increase in the soil pH enhanced the decomposition and C mineralization of added cellulose powder regardless of the accumulation of heavy metals. These results suggested that the decomposition of cellulose powder in soil was inhibited not only by the increase in the 0.1 M CaC12-extractable Cu, but also by the decrease in soil pH. No close relationship was detected between the total amount of heavy metals and the mineralization rate of the added orchard grass-C in the soils throughout the 70-d period of incubation. However, only during the early period of incubation (up to 7 d), the mineralization rate was negatively correlated with the amounts of 0.1 M CaC12-extractable Cu and Pb, and positively with the soil pH. The addition of Ca(OH)2 decreased the mineralization rate of orchard grass in an acid soil with heavy metal accumulation, whereas it did not affect appreciably the mineralization rate in an acid soil without heavy metal accumulation. It was suggested that the increases in the amounts of 0.1 M CaC12-extractable Cu and Pb induced by the decline in soil pH may be responsible for the inhibition of the decomposition of orchard grass observed during the early period of incubation.Key Words: cellulose decomposition, copper, heavy metals, lead, plant residue decomposition.Aomori Prefecture is the oldest and largest apple-producing region in Japan, accounting for about half of the total output. In Aomori Prefecture, considerable amounts of metal-based pesticides, Bordeaux mixtures and lead arsenate, have been applied in apple 1 Present address: Aichi Prefectural Government Toyota Office, Toyota, 471 Japan. 122M. AOYAMA and S. KUROYANAGI orchards since the early 1900's. The use of lead arsenate was prohibited in 1978, but Bordeaux mixtures are still utilized. As a result high concentrations of Cu, Pb, and As derived from such metal-based pesticides have accumulated in the surface soils of apple orchards (Narita et al. 1987). In apple orchards under the sod culture system, the undergrowth is considered to be playing an important role in the cycling of nutrients in soil. Heavy metals usually, but not always, inhibit the decomposition of organic matter in soil (Babich...

show abstract

Effects of copper on the metabolism of¹⁴C-labeled glucose in soil in relation to amendment with organic materials

Cited by 25 publications

References 9 publications

Evaluation of bioventing on a gasoline?ethanol contaminated undisturbed residual soil

Evaluation of bioventing on a gasoline?ethanol contaminated undisturbed residual soil

Factors Affecting Microbial Biomass and Dehydrogenasc Activity in Apple Orchard Soils with Heavy Metal Accumulation

Effects of heavy metal accumulation associated with pesticide application on the decomposition of cellulose and orchard grass in soils

Contact Info

Product

Resources

About

Effects of copper on the metabolism of14C-labeled glucose in soil in relation to amendment with organic materials

Cited by 25 publications

References 9 publications

Evaluation of bioventing on a gasoline?ethanol contaminated undisturbed residual soil

Evaluation of bioventing on a gasoline?ethanol contaminated undisturbed residual soil

Factors Affecting Microbial Biomass and Dehydrogenasc Activity in Apple Orchard Soils with Heavy Metal Accumulation

Effects of heavy metal accumulation associated with pesticide application on the decomposition of cellulose and orchard grass in soils

Contact Info

Product

Resources

About

Effects of copper on the metabolism of¹⁴C-labeled glucose in soil in relation to amendment with organic materials