Effect of edaphic factors and seasonal variation on spore density and root colonization of arbuscular mycorrhizal fungi in sugarcane fields

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Abstract

Sugarcane fields in 14 different study sites were analyzed for the presence of different arbuscular mycorrhizal fungal (AMF) spores. A total of 23 AMF species representing four genera were identified, among which Glomus fasciculatum and G. mosseae were the dominant species. The mean spore density in the root-zone soils of sugarcane plants varied from 119 to 583 per 100 g of soil, and the mean percentage root colonization varied from 60 to 89 %. A study of the effect of edaphic factors on AM spore density and percentage root colonization revealed a positive correlation between pH and AMF spore density and root colonization and a negative correlation between electrical conductivity, nitrogen, and phosphorus. A positive correlation was observed between AMF spore density and root colonization. Season was also found to play a vital role in determining AMF spore density and percentage root colonization, with high spore density and root colonization observed during the summer season and lower spore densities and root colonization during the winter season.

Original languageEnglish
Pages (from-to)151-160
Number of pages10
JournalAnnals of Microbiology
Volume63
Issue number1
DOIs
Publication statusPublished - 2013

Keywords

  • Arbuscular mycorrhizal fungi
  • Edaphic factors
  • Seasonal variation
  • Sugarcane

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology

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