Paper Information

Journal:   JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)   SEPTEMBER-OCTOBER 2012 , Volume 26 , Number 4; Page(s) 864 To 872.
 
Paper: 

THE EFFECT OF CADMIUM, ZINC AND PHOSPHORUS ON GLOMALIN PRODUCED BY ARBUSCULAR MYCORRHIZAL (AM) FUNGI IN SYMBIOSIS WITH WHITE CLOVER

 
 
Author(s):  MADANI A.*, LAKZIAN A., HAGHNIA GH., KHORASANI R.
 
* DEPARTMENT OF SOIL SCIENCE, FACULTY OF AGRICULTURE, FERDOWSI UNIVERSITY OF MASHHAD
 
Abstract: 

High concentration, of heavy metals and the presence of phosphorus in soils may cause a reduction in the growth and activity of arbuscular mycorrhizal (AM) fungi and consequently, the spore production of these fungi would decrease. In order to evaluate the effect of zinc and cadmium as heavy metals and phosphorus on arbuscular mycorrhizal fungi activity through measuring glomalin produced by these fungi a factorial experiment arranged as completely randomized design was carried out. Experimental factors included two fungal speciesG.
mosseaeand G. intraradices and non mycorrhiza (NM), six combinations of metals (400 mg of Zn, 25 mg of Cd, 400 mg of Zn+25 mg of Cd, 50 mg P, 50 mg of P+400 mg of Zn+25 mg of Cd, and no metal kg-1 soil sample) in three replications. The results showed that inoculated treatments produced more glomalin compared to non mycorrhizal treatments. The application of Cd, Zn and P caused a significant reduction in produced glomalin by both fungi species. The most reduction of glomalin inG. intraradices was detected in Cd treatment and in G.
mosseaewas in Zn treatment. The result also showed a positive correlation between the measured glomalin by Bradford assay and the percent of root colonization. According to the results of this study, glomalin in soil could be an indicator to monitor arbuscular mycorrhizal fungi activity and soil health.

 
Keyword(s): HEAVY METALS, G. MOSSEAE, G. INTRARADICES, GLOMALIN
 
References: 
  • ندارد
 
  Persian Abstract Yearly Visit 71
 
Latest on Blog
Enter SID Blog