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Microbial community composition and necromass are important determinants of the soil organic carbon in agroforestry tree species

Indian Agricultural Research Journals

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Title Microbial community composition and necromass are important determinants of the soil organic carbon in agroforestry tree species
 
Creator Menpadi, manoj m
Manoj M
Dr. Geeta Singh
 
Subject Dr. Geeta Singh Contributing author
 
Description To understand the role of native microbial community structure in the transformation of carbon in the root zone soils of commonly cultivated agroforestry trees, an investigation was to analyze distinct root zone soils of selected economically important agroforestry trees (Mango-Mangifera indica, Moringa-Moringa oleifera, Guava-Psidium guajava, Mulberry-Morus alba, Subabul-Leucaena leucocephala) from a mixed plantation orchard of Delhi (Northern Indian region). Soil samples were collected and assessed in terms of the composition of their microbial communities, using phospholipid fatty acid (PLFA) profiles, microbial structural components, namely aminosugars, ergosterol, muramicacid, glycoproteins–glomalins, and microbial biomass carbon. Significant differences in the community structure specific for each tree were recorded. Quantitative abundance of saprophytic fungi present in soil and soil microbial biomass revealed highest values in soil samples from Mango > Subabul > Mulberry  > Guava  > Moringa. The content of phospholipid marker for symbiotic arbuscular fungi (16:1ω5C) exhibited a similar trend among the five tree species Mango > Subabul > Guava > Moringa = Mulberry. The study suggests that the plant species selects the specific members of the rhizosphere microbial community, which influences the composition of bacterial cell wall molecules in soil samples. This highlights how plants are a key parameter regulating the amount of necromass generated, which is an important fraction of the soil organic carbon.
 
Publisher Indian Society of Agroforestry
 
Date 2023-12-26
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/IJA/article/view/127301
 
Source Indian Journal of Agroforestry; Vol. 25 No. 2 (2023): Indian Journal of Agroforestry Volume 25 Number 2
2456-6489
0972-0715
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/IJA/article/view/127301/53490