Effects of vegetation and seasonality on bacterial communities in Amazonian dark earth and adjacent soils

Lima, Adriano Fonseca; Cannavan, Fabiana de Souza; Germano, Mariana Gomes; Dini‐Andreote, Francisco; Paula, Alessandra Monteiro de; Franchini, J. C.; Teixeira, W. G.; Tsai, Siu Mui

doi:10.5897/ajmr2015.7453

Cited by 8 publications

(1 citation statement)

References 59 publications

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“…As a result, the contribution of fungi to OD change in the EcoPlate is actually ignored. Usually, if there are no inhibitory factors that could suppress the growth and metabolic activity of bacteria the curve of AWCD keeps a typical sigmoid shape (Stefanowicz, 2006, Lima et al, 2015. However, either depending on the analysed samples and the participating species a longer lag phase (Koner et al, 2021) or specific differences in the trend can also be observed (Li et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Evaluation of soil microbial activity after application of Paenibacillus polymyxa-based biofertilizer in wheat field experiment

Dimitrova

2024

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The establishment of eco-friendly principles in agriculture requires, from one side, a reduced dependence on chemical fertilizers, pesticides and herbicides, and on the other, a maintenance of consistent yield and high plant productivity. Such substantial shift in the contemporary agricultural practices can be achieved only if a wide variety of alternative options is available. Furthermore, in order to become part of agricultural practices these options have to be affordable in a broad scale and effective against the loss of biodiversity and reduced soil fertility. The current study presents data about the metabolic activity and microbial community` structure in two soil samples – one treated with chemical fertilizer and another treated with chemical fertilizer reduced by 25% dose and supplemented with commercially available biofertilizer. Metabolic activity and properties of microbial soil communities were assessed by the BIOLOG® EcoPlate technique. The estimated parameters included average well-color development (AWCD) and utilisation of six guilds of substrates. Several functional indexes that are used for evaluation of community diversity and evenness were also estimated. The AWCD, expressed either as total activity or as guilds utilisation during the EcoPlate incubation period of seven days did not reveal significant difference between variants. However, most of the estimated functional indexes consistently indicated higher microbial diversity and more balanced structure of microbial community in the biofertilizer-supplemented variant. The results clearly implied that the biofertilizer based on nitrogen-fixing bacteria can positively influence the structure of soil communities and its application could be beneficial for soil fertility and plant productivity. Keywords: diazotroph, biofertilizer, BIOLOG® EcoPlate, functional indexes, metabolic activity, microbial communities

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Section: Resultsmentioning

confidence: 99%

Evaluation of soil microbial activity after application of Paenibacillus polymyxa-based biofertilizer in wheat field experiment

Dimitrova

2024

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Next-Generation Sequencing to Elucidate Biochar-Effected Microbial Community Dynamics

Cannavan

Nakamura

Germano

et al. 2016

Biochar Application

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Metagenomics analysis of soil microbial communities in plant agroforestry system rubber tree (Hevea brasiliensis) – Ganyong (Canna sp.)

Effendi

Aini

Pambudi

et al. 2020

IOP Conf. Ser.: Earth Environ. Sci.

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Rubber tree (Hevea brasiliensis) is one of important industrial plants in Indonesia. It is planted widely in some provinces in Indonesia, one of which is in West Java under management of the PTPN VIII plantation, Subang Regency. Intercropping system using underutilized crops Canna sp. (Ganyong) had been introduced on Rubber plantation. The aim of this research is to analyze the diversity, abundance and richness of rhizosphere soil microbial under rubber-canna agroforestry system using metagenomic analysis of 16S rRNA gene of soil rhizosphere bacteria. The research was carried out by collecting soil samples from 2 different soil conditions (soils with Canna (G) and soils without Canna (TG)). 2 different soil depths conditions (20 and 40 cm) were also investigated. The results showed that number of microbial in G soils was found more abundance than in TG soils, while based on soil depth there was no significant effect on soil microbial abundance. Based on class level was found 84 Classes. There were 3 classes that are mostly found in G and TG, namely Ktedonobacteria, Acidobacteria and Planctomycetia. Microbial diversity in family level mostly found in G and TG, Namely Koribacteraceae, Gemmataceae, Synobacteraceae, Hyphomicrobiaceae.

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Effects of vegetation and seasonality on bacterial communities in Amazonian dark earth and adjacent soils

Cited by 8 publications

References 59 publications

Evaluation of soil microbial activity after application of Paenibacillus polymyxa-based biofertilizer in wheat field experiment

Evaluation of soil microbial activity after application of Paenibacillus polymyxa-based biofertilizer in wheat field experiment

Next-Generation Sequencing to Elucidate Biochar-Effected Microbial Community Dynamics

Metagenomics analysis of soil microbial communities in plant agroforestry system rubber tree (Hevea brasiliensis) – Ganyong (Canna sp.)

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