Cadmium- and flood-induced anoxia stress in pea roots measured by electrical impedance

Ildikó Jócsák, Magdolna Droppa, G. Horváth, K. Bóka, Eszter Vozáry

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Electrical impedance measurement - complex resistance in the presence of alternating current - is a useful tool for the investigation of structural characteristics of solid materials but also for plant tissues. This measurement is easily done: only two electrodes are inserted into the plant tissue, so it can be considered as a non-invasive technique and it may be a successful method for detecting structural changes in plants caused by environmental stresses. The effects of flood and cadmium stress were investigated by electrical impedance measurement, because both of them cause structural changes in plant tissues. Apoplasmic resistance (Ra), symplasmic resistance (Rs), and membrane capacitance (Cm) of pea roots were calculated. In the first five days of flood treatment, the Rs and Cm values of roots decreased drastically. In case of cadmium treatment, the Rs and Cm values of roots showed an increasing tendency supposedly as a consequence of the enhanced membrane rigidity, the thickened cell walls and decreased growth phenomena caused by the heavy metal. There also was a remarkable difference in cadmium accumulation patterns and in the changes of the calculated parameters amongst anoxic and aerated seedlings. This initial work revealed that the development of stress caused by two environental stress agents, cadmium and flood, can be followed by electrical impedance measurement.

Original languageEnglish
Pages (from-to)95-102
Number of pages8
JournalZeitschrift fur Naturforschung - Section C Journal of Biosciences
Volume65
Issue number1-2
Publication statusPublished - 2010

Fingerprint

Acoustic impedance
Peas
Electric Impedance
Cadmium
Tissue
Membranes
Heavy Metals
Seedlings
Rigidity
Cell Wall
Electrodes
Capacitance
Cells
Hypoxia
Growth

Keywords

  • Cadmium
  • Electrical impedance spectroscopy

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Cadmium- and flood-induced anoxia stress in pea roots measured by electrical impedance. / Jócsák, Ildikó; Droppa, Magdolna; Horváth, G.; Bóka, K.; Vozáry, Eszter.

In: Zeitschrift fur Naturforschung - Section C Journal of Biosciences, Vol. 65, No. 1-2, 2010, p. 95-102.

Research output: Contribution to journalArticle

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