Influence of Soil properties on Native Arbuscular Mycorrhizal Fungi and their Distribution in Soybean (Glycine max (L.) Merr.) Cultivation

Author: R.D. Namdas and S.S. Kamble

Journal Name:

Download PDF

Abstract

Insufficient availability of comprehensive soil property data and the difficulty in establishing causality present significant impediments to researching the influence of soil properties on the incidence and distribution patterns of native arbuscular mycorrhizal fungi (AMF) associated with soybean (Glycine max (L.) Merr.). Furthermore, the intricate interrelationships between soil properties, spatial and temporal variabilities, and the taxonomic identification of native AMF species introduce additional complexities, hampering the comprehension of their associations and the formulation of practical strategies for promoting sustainable soybean cultivation. Arbuscular mycorrhizal (AM) fungi are essential constituents of soil microbiota and exhibit interactions with other microorganisms in the rhizosphere, which is the region of influence of plant roots on microbial populations and other soil constituents. AM fungal interactions are influenced by general and annual fluctuations in addition to abiotic factors such as environmental and climatic conditions. This study aimed to evaluate the population dynamics of AM fungal spores in the rhizosphere soil of soybean crops in relation to physico-chemical properties. Soil and root samples were collected from three sites in the Satara district of Maharashtra State, India, and analyzed for AM spore numbers and physico-chemical properties. Results showed well-distributed AM fungal species with numbers ranging from 55 to 78 spores per 10 g of soil. A total of 28 AM fungal species representing four genera were isolated, with Glomus being the predominant genus represented by 13 species, followed by Gigaspora (4), Scutellispora (7), and Acaulospora (4). The quantity and type of AM spores found were affected by the variable soil profile, with alkaline soil attributed to an increase in the population of Glomus species.

Keywords

AM Fungi, Soil properties, Glomus spp., Soybean, Soil Profile, Rhizosphere

Conclusion

Mycorrhiza is a mutualistic symbiotic association between fungi and plant roots. In this association, mycorrhizal fungi facilitate the uptake of nutrients, especially phosphorus, and enhance the growth of crop plants and trees. The present study demonstrates that the population of arbuscular mycorrhizal fungi (AMF) can be influenced by various factors, including soil properties. Specifically, soil properties can impact the occurrence and distribution of AMF in soil. These findings provide a basis for future research in the field of mycorrhiza.

References

-

How to cite this article

R.D. Namdas and S.S. Kamble (2023). Influence of Soil properties on Native Arbuscular Mycorrhizal Fungi and their Distribution in Soybean (Glycine max (L.) Merr.) Cultivation. Biological Forum – An International Journal, 15(4): 717-721.