Effects of Biofertilizers on Maize and Sunflower Seedlings under Cadmium Stress

Éva Gajdos, László Lévai, Szilvia Veres, B. Kovács

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Application of various alternative nutrient supplies can partly be substituted by chemical fertilizers, resulting in economical use with less environmental strains. Biofertilizers containing living microorganisms promote nutrition uptake, but still there are questions regarding their application under stress conditions. One of the main abiotic factors that can induce stress is contamination of soils with toxic elements. In the course of intensive plant-growth conditions, considerable quantities of basic cations are removed from the soil, resulting in acidification and thereby enhancing the uptake of heavy metals by plants. Cadmium (Cd) toxicity is a major problem affecting crop productivity worldwide. The presence of Cd in the rhizosphere can cause stress responses and alteration in many physiological processes, including nitrogen metabolism, photosynthesis, carbohydrate metabolism, sulfate assimilation, and plant-water interactions. Once in the plant, Cd can enter the food chain, causing public health problems. The aim of our work was to investigate the effects of biofertilizers on plant production and nutrient uptake in some Cd-contaminated soils. Our results revealed that Cd accumulated primarily in the roots and transport to the shoots was rather low; however, there were differences between the two plants species. Plant uptake by sunflower was greater than by maize, and sunflower appeared to be more stress tolerant of Cd than maize. With the use of the bacterium-containing biofertilizer, the toxic effect of Cd was moderated.

Original languageEnglish
Pages (from-to)272-279
Number of pages8
JournalCommunications in Soil Science and Plant Analysis
Volume43
Issue number1-2
DOIs
Publication statusPublished - Jan 2012

Fingerprint

biofertilizer
biofertilizers
Helianthus annuus
cadmium
maize
seedling
corn
seedlings
uptake mechanisms
metabolism
soil acidification
nitrogen metabolism
soil pollution
carbohydrate metabolism
nutrient uptake
effect
food chain
polluted soils
acidification
rhizosphere

Keywords

  • Biofertilizer
  • cadmium accumulation

ASJC Scopus subject areas

  • Soil Science
  • Agronomy and Crop Science

Cite this

Effects of Biofertilizers on Maize and Sunflower Seedlings under Cadmium Stress. / Gajdos, Éva; Lévai, László; Veres, Szilvia; Kovács, B.

In: Communications in Soil Science and Plant Analysis, Vol. 43, No. 1-2, 01.2012, p. 272-279.

Research output: Contribution to journalArticle

Gajdos, Éva ; Lévai, László ; Veres, Szilvia ; Kovács, B. / Effects of Biofertilizers on Maize and Sunflower Seedlings under Cadmium Stress. In: Communications in Soil Science and Plant Analysis. 2012 ; Vol. 43, No. 1-2. pp. 272-279.
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