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<p>Although the association of AM and DSE fungi in various fruit plants has been reported from different parts of the world, the information of their association with horticultural fruit plants of this region is limited. Therefore, the AM fungal communities in the rhizosphere soils and AM and DSE colonization levels in <i>Citrus</i> <i>aurantifolia</i> (Christm.) Swingle, <i>Citrus limetta</i> Risso and <i>Citrus reticulata</i> Blanco roots were assessed. Fifteen root and soil samples were collected from five randomly chosen individuals of each <i>Citrus</i> species from a hillside orchard in Manipur, North-Eastern India. The study found 21 AM species in the natural-field and trap culture soils of selected fruit plants. The AM species richness and spore density were highest in <i>C. limetta</i>. The examined roots of all studied plants had dual colonization of AM and DSE fungi. Nevertheless, this study provides the first report of AM morphology in all examined plants and the prevalence of DSE fungi in <i>C. aurantifolia</i> and <i>C. limetta</i>, with the exception of <i>C. reticulata</i>. <i>Arum</i>–<i>Paris</i>-type AM morphology was observed in <i>C. aurantifolia</i> and <i>C. reticulata</i> roots, while <i>C. limetta</i> had Intermediate-4 type morphology. Total root colonization by AM fungi was highest in <i>C. limetta</i>, while DSE fungi were most prevalent in <i>C. aurantifolia</i>. Thus, the prevalence of AM and DSE fungal associations in three commercially important <i>Citrus</i> species of Indo-Burma hotspot region indicates their utilities for sustainable horticultural practices in future.</p>

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Arbuscular Mycorrhizal and Dark Septate Endophytic Fungal Symbioses in Three Different Citrus Species from Hillside Orchards of North-Eastern India

  • 期刊论文

  • 发表日期：

    2025年7月10日

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  • Salam Nirmalashachi Chanu,
  • Radha Raman Pandey,
  • Surendirakumar Kannaiah

摘要

Although the association of AM and DSE fungi in various fruit plants has been reported from different parts of the world, the information of their association with horticultural fruit plants of this region is limited. Therefore, the AM fungal communities in the rhizosphere soils and AM and DSE colonization levels in Citrus aurantifolia (Christm.) Swingle, Citrus limetta Risso and Citrus reticulata Blanco roots were assessed. Fifteen root and soil samples were collected from five randomly chosen individuals of each Citrus species from a hillside orchard in Manipur, North-Eastern India. The study found 21 AM species in the natural-field and trap culture soils of selected fruit plants. The AM species richness and spore density were highest in C. limetta. The examined roots of all studied plants had dual colonization of AM and DSE fungi. Nevertheless, this study provides the first report of AM morphology in all examined plants and the prevalence of DSE fungi in C. aurantifolia and C. limetta, with the exception of C. reticulata. Arum–Paris-type AM morphology was observed in C. aurantifolia and C. reticulata roots, while C. limetta had Intermediate-4 type morphology. Total root colonization by AM fungi was highest in C. limetta, while DSE fungi were most prevalent in C. aurantifolia. Thus, the prevalence of AM and DSE fungal associations in three commercially important Citrus species of Indo-Burma hotspot region indicates their utilities for sustainable horticultural practices in future.