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O'Donnell, Anthony G.; Seasman, Melanie; Macrae, Andrew; Waite, Ian; Davies, J.

doi:10.1023/a:1010394221729

Cited by 206 publications

(29 citation statements)

References 38 publications

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“…can influence microbial community structure by providing specific habitats for specific microorganisms (Chatterjee et al 2014). The soil-inhabiting microorganisms play a vital role in regulating soil function by contributing to soil structure formation (Wright and Upadhyaya 1998; Dodd et al 2000), plant nutrition (George et al 1995; Timonen et al 1996), plant health (Srivastava et al1996; Filion et al 1999) and soil fertility (Yao et al 2000; O’Donnell et al 2001). So quantitative and qualitative assay of soil microbes is an essential part in characterization of soil (Arunachalam and Arunachalam 2000).…”

Section: Discussionmentioning

confidence: 99%

Population dynamics of soil bacteria in some areas of Midnapore coastal belt, West Bengal, India

Azmi

Chatterjee

2016

3 Biotech

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In this present study the population dynamics of the soil bacteria of some coastal villages, namely Padima, Jatimati, Chanpabani, Palsandapur, Bhagibaharampur, Duttapur, Gangadharpur, Gobindabasan, Somaibasan of Digha, West Bengal, India, was determined. In these villages the aerobic heterotrophic, Gram-negative, spore-forming, starch-hydrolyzing, Pseudomonas, nitrate-reducing, denitrifying, asymbiotic N2 fixing, nitrifying, phosphate-solubilizing bacterial populations ranged from 1.22 to 2.67 × 106, 0.09–1.63 × 105, 1.53–3.68 × 105, 2.22–4.06 × 105, 0.02–0.04 × 105, 0.35–1.33 × 105, 0.07–0.82 × 105, 0.58–2.50 × 105, 0.13–2.35 × 105, 0.05–1.9 × 105 cfu/g dry soil, respectively. The organic carbon content of the soil samples ranged from 0.61 to 0.93 %. The available nitrogen and phosphate in the soils of the study area varied from 11.2 to 29.5 and 230.8–503.09 mg/kg, respectively. The one-way ANOVA revealed significant variations (p < 0.05) in the microbial diversity with respect to different locations of the study site. Shannon-Wiener and Simpson Index of the study areas ranged from 1.56 to 1.88 and 3.85–5.73, respectively. Jatimati showed comparatively higher diversity index among the villages of the study area. From principal component analysis, three components were extracted having the Eigen values of 3.541, 1.603 and 1.391, respectively. Agglometric hierarchial cluster analysis in respect of the number of different bacterial groups in different places of the study area showed that the denitrifying, nitrate reducing, asymbiotic nitrogen-fixing and spore-forming bacteria formed a cluster while Pseudomonas differed from them forming another cluster and nitrifying, Gram negative, phosphate-solubilising and starch-hydrolyzing bacteria formed another different cluster. This variation of the soil bacteria might be dependent on the microhabitat present in different locations of the study area.

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Section: Discussionmentioning

confidence: 99%

Population dynamics of soil bacteria in some areas of Midnapore coastal belt, West Bengal, India

Azmi

Chatterjee

2016

3 Biotech

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“…Many studies have shown that the microbial community in the rhizosphere is distinct from that in bulk soil because the root exudates and deposits in the rhizosphere change the micronutritional environment (Edwards et al, 2015;Peiffer et al, 2013;Zhang et al, 2017;Zhang et al, 2018aZhang et al, , 2018b. In addition, CR has frequently been demonstrated to be a major factor affecting the shifts in microbial community in both bulk and rhizospheric soils (Meriles et al, 2009;O'Donnell, Seasman, Macrae, Waite, & Davies, 2001). Using culture-dependent methods, several studies have demonstrated that CC of soybean changes the soil microbial composition compared with rotation cropping of soybean (Chen, Yin, Wang, & Zou, 1997;Liu, Zhou, & Han, 1990;Xu et al, 1995;Yu, Wu, Wang, Chen, & Gu, 2014).…”

Section: Of Soybean Changes Fungal Communities In Both Bulk and mentioning

confidence: 99%

Continuous cropping of soybean alters the bulk and rhizospheric soil fungal communities in a Mollisol of Northeast PR China

Liu

Yao

et al. 2019

Land Degrad Dev

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Continuous cropping of soybean causes soil degradation and decreased soybean yield in Northeast PR China. However, the mechanism underlying the effect on soil fungal communities and the relationship between these effects and cropping systems have not yet been fully elucidated. In this study, we comparatively investigated the abundance, diversity, and structures of fungal communities in the bulk and rhizospheric soils of soybean grown in two cropping systems, that is, continuous cropping (CC) of soybean and cropping rotation (CR) with maize using real‐time Polymerase Chain Reaction (PCR) and Illumina MiSeq sequencing methods. The results showed that the rhizospheric soil fungal abundance was significantly higher in CC than in CR, but the opposite trend was observed in bulk soils. CC decreased the fungal alpha diversity in both bulk and rhizospheric soils compared with CR. The fungal community compositions were distinctly different between CC and CR in both bulk and rhizospheric soils, and the composition and diversity in bulk soils were predominantly affected by the soil carbon to nitrigen (C/N) ratio. The soil fungal functional groups varied between the two cropping systems; CC increased the relative abundances of the potentially pathogenic fungi Fusarium oxysporum and Lectera longa and beneficial fungi Mortierella sp. and Paecilomyces lilacinus. In contrast, CR increased the relative abundance of Ustilago maydis, which is a pathogen that causes corn smut. Our findings showed that CC increased the abundances of plant pathogens, which is harmful to soybean growth; in contrast, the abundances of some beneficial fungi also increased, which suggested that suppressive soils might be developed after long‐term CC.

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“…Such research can lead to the generation of ecological theories which may help predict peatland response to global change and anthropogenic disturbances. However, interpreting interactions between microbial diversity and function remain complex and challenging [57], yet it remains potentially a useful tool. Analysis of all the parameters in this study indicate that all peat swamp soils of GSKBB are clustered individually (Figure 4).…”

Section: Key Relationship Between Land-use Change and Measured Paramementioning

confidence: 99%

Assessment of the Influence of Oil Palm and Rubber Plantations in Tropical Peat Swamp Soils Using Microbial Diversity and Activity Analysis

Nurulita

Adetutu

Kadali

et al. 2016

JACEN

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In this study, tropical peat swamp soils from Giam Siak Kecil-Bukit Batu Biosphere Reserve (GSKBB) in Indonesia was evaluated to assess the impact of oil palm and rubber plantations on this unique organic soil through comparisons with soils from a natural forest using a polyphasic approach (chemical and molecular microbial assays). Changes in the ammonium, nitrate and phosphate concentration were observed in soils converted to agricultural use. Soil enzyme activities in plantation soils showed reduced β-glucosidase, cellobiohydrolase and acid phosphatase activities (50% -55% decrease). PCR-DGGE based analysis showed that the soil bacterial community from agricultural soils exhibited the lowest similarity amongst the different microbial groups (fungi and Archaea) evaluated (34% similarity to the natural forest soil). Shannon Diversity index values showed that generally the conversion of tropical peatland natural forest to rubber plantation resulted in a greater impact on microbial diversity (ANOVA p < 0.05). Overall, this study indicated substantial shifts in the soil microbial activity and diversity upon conversion of natural peatland forest to agriculture, with a greater change being observed under rubber plantation compared to oil palm plantation. These findings provided important data for future peatland management by relating changes in the soil microbial community and activities associated to agricultural practices carried out on peatland. Y. Nurulita et al.54

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Untitled

Cited by 206 publications

References 38 publications

Population dynamics of soil bacteria in some areas of Midnapore coastal belt, West Bengal, India

Population dynamics of soil bacteria in some areas of Midnapore coastal belt, West Bengal, India

Continuous cropping of soybean alters the bulk and rhizospheric soil fungal communities in a Mollisol of Northeast PR China

Assessment of the Influence of Oil Palm and Rubber Plantations in Tropical Peat Swamp Soils Using Microbial Diversity and Activity Analysis

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