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<p>Soil acidity critically affects nutrient availability and plant growth and managed through amending with liming materials or by growing acidity tolerant plants. AMF are known in improving plant resistance to soil acidity. The objective of this study was to assess the effects of lime amendment practices on the AMF spore density and species diversity in north, Ethiopia. Preliminary information was obtained on soil fertility and acidity management practices. Soil samples were collected from both lime amended and non-lime amendment received rhizosphere soils from wheat, teff and barley crops. AMF spores were extracted and species were identified. The highest AMF spore density was recorded from lime amended soils at Enrata (40.7 per 100&#xa0;g dry soil) and Gozamin (30.7 per 100&#xa0;g dry soil) soil environments, however, the highest AMF spore density (65.4 per 100&#xa0;g dry soil) was recorded in non-amended soils at Debre Elias soil environment. The mean spore density was higher (44.5 per 100&#xa0;g dry soil) in non-amended soils. About 35 AMF morphotypes categorized into five genera were recorded. Genus <i>Pacispora</i> was dominant, followed by genus <i>Scutellospora</i>. The highest AMF genera (five) were recorded from lime amended soils. The highest AMF genera richness was recorded from wheat crop rhizosphere. Lime amended soils exhibited lower mean AMF spore density; however, the highest species diversity was recorded from lime amended soils. Detailed investigation using soil, roots and DNA based techniques is required to assess the effects of lime amendment on soil pH improvement, AMF spore density and diversity.</p>

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Lime application to acidic soils increases arbuscular mycorrhizal fungi (AMF) species diversity but decreases AMF spore density

  • 期刊论文

  • 发表日期：

    2025年8月28日

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  • Belay Berza Beyene,
  • Fentanesh Adane Getnet,
  • Jemal Yimer Kebede,
  • Marcela Claudia Pagano,
  • Fassil Assefa Tuji

摘要

Soil acidity critically affects nutrient availability and plant growth and managed through amending with liming materials or by growing acidity tolerant plants. AMF are known in improving plant resistance to soil acidity. The objective of this study was to assess the effects of lime amendment practices on the AMF spore density and species diversity in north, Ethiopia. Preliminary information was obtained on soil fertility and acidity management practices. Soil samples were collected from both lime amended and non-lime amendment received rhizosphere soils from wheat, teff and barley crops. AMF spores were extracted and species were identified. The highest AMF spore density was recorded from lime amended soils at Enrata (40.7 per 100 g dry soil) and Gozamin (30.7 per 100 g dry soil) soil environments, however, the highest AMF spore density (65.4 per 100 g dry soil) was recorded in non-amended soils at Debre Elias soil environment. The mean spore density was higher (44.5 per 100 g dry soil) in non-amended soils. About 35 AMF morphotypes categorized into five genera were recorded. Genus Pacispora was dominant, followed by genus Scutellospora. The highest AMF genera (five) were recorded from lime amended soils. The highest AMF genera richness was recorded from wheat crop rhizosphere. Lime amended soils exhibited lower mean AMF spore density; however, the highest species diversity was recorded from lime amended soils. Detailed investigation using soil, roots and DNA based techniques is required to assess the effects of lime amendment on soil pH improvement, AMF spore density and diversity.