http://www.cnr.it/ontology/cnr/individuo/prodotto/ID40375

Short-time effect of heavy metals upon microbial community activity (Articolo in rivista)

Type

Label

Short-time effect of heavy metals upon microbial community activity (Articolo in rivista) (literal)

Anno

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

Alternative label

Fei Wang, Jun Yao, Yang Si, Huilun Chen, Mohammad Russel, Ke Chen, Yiguang Qian, Gyula Zaray and Emilia Bramanti (2010)
Short-time effect of heavy metals upon microbial community activity
in Journal of hazardous materials (Print)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Fei Wang, Jun Yao, Yang Si, Huilun Chen, Mohammad Russel, Ke Chen, Yiguang Qian, Gyula Zaray and Emilia Bramanti (literal)

Pagina inizio

Pagina fine

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

Rivista

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

Note

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

[ 1 ] China Univ Geosci, Key Lab Biogeol & Environm Geol, Chinese Minist Educ, Wuhan 430074, Peoples R China [ 2 ] China Univ Geosci, Sino Hungarian Joint Lab Environm Sci & Hlth, Wuhan 430074, Peoples R China [ 3 ] China Univ Geosci, Sch Environm Sci, Wuhan 430074, Peoples R China [ 4 ] Eotvos Lorand Univ, Dept Chem Technol & Environm Chem, H-1518 Budapest, Hungary [ 5 ] Area Ric, Inst Chem & Phys Proc, Lab Instrumental Analyt Chem, I-56124 Pisa, Italy (literal)

Titolo

Abstract

Microcalorimetry was applied to assess and compare the toxic effect of heavy metals, such as As, Cu, Cd, Cr, Co, Pb and Zn, on the soil microbial activities and community. About 1.0 g soil spiked 5.0 mg glucose and 5.0 mg ammonium sulfate, the microbial activities were recorded as power-time curves, and their indices, microbial growth rate constant k, total heat evolution Q(T), metabolic enthalpy Delta H(met) and mass specific heat rate J(Q/S), were calculated. Comparing these thermodynamic parameters associated with growth yield, a general order of toxicity to the soil was found to be Cr > Pb > As > Co > Zn > Cd > Cu. When soil was exposed to heavy metals, the amount of bacteria and fungi decreased with the incubation time, and the bacterial number diminished sharply. It illustrates that fungi are more tolerant, and bacteria-fungi ratio would be altered under metal stress. To determine the status of the glucose consumed, a glucose biosensor with eggshell membrane was used to measure the remaining glucose in soil sample. Results showed that the time at which glucose was consumed completely was agreed with the microcalorimetric time to a large extent, and depended on the toxicity of heavy metals as well. (C) 2009 Elsevier B.V. All rights reserved. (literal)

Prodotto di