Specific Variations of Arbuscular Mycorrhizal (AM) Fungi in Potential Timber Yielding Tree Species From the Western Ghat Region of Goa, India

Abstract

Studies were carried out on the arbuscular mycorrhizal (AM) fungal association in four potential timber yielding tree species from four forest areas of the Western Ghat region of Goa, India. The edaphic factors selected for the study varied within the four study sites. Significant positive and negative correlations were exhibited between spore density and root colonization of AM fungi at two sites, Collem and Dharbandoda. The study recorded the presence of 21 AM fungal species belonging to three genera-viz., Acaulospora, Gigaspora, and Glomus. The present study suggests that there is a site specific variation in root colonization (except at Mollem) and spore density as well as edapho-specific variation in association, composition, and distribution of AM fungi associated with potential timber yielding trees from four forest areas in the Western Ghat region of Goa. Further investigations of AM fungal dynamics if carried out can help elucidate the ecological significance of AM fungal associations in the Western Ghat region of Goa. To add, learning more about the ecology and intricacies of the AM association is crucial for attaining a good understanding of its life cycle and functions in edapho-climatic conditions of the Western Ghat region of Goa to further use it in the management of reforestation practices.

Vegetative anatomy and endorrhizal fungal morphology of an endangered medicinal plant Gloriosa superba L.

“…The mycorrhizal association in plant roots is a common mutualistic relationship found in many terrestrial plants. The roots of G. superba were associated with AM and DSE fungi which coincides with the observations of the previous studies (Khade & Rodrigues, 2003; Muthukumar et al, 2006). As reported in the present study, Khade and Rodrigues (2003) also revealed AM fungal colonization in root exodermis and cortical region of G. superba .…”

“…The roots of G. superba were associated with AM and DSE fungi which coincides with the observations of the previous studies (Khade & Rodrigues, 2003; Muthukumar et al, 2006). As reported in the present study, Khade and Rodrigues (2003) also revealed AM fungal colonization in root exodermis and cortical region of G. superba . The Arum‐ type AM morphology observed in the current investigation is an addition to the typical Paris ‐type AM reported for this species (Muthukumar et al, 2006).…”

Arbuscular mycorrhizal status and root phosphatase activities in vegetative Carica papaya L. varieties

“…The AM fungal species belonging to genus Glomus were the most representative type. Similarly, maximum numbers of Glomus species were found to be associated with papayas Rodrigues 2008a, b, 2009), medicinal plants , pteridophytes and forest tree species (Khade and Rodrigues 2003) of Goa, India. In the present study, few species were frequently occurring and abundant when compared with other species of AM fungi.…”