Nitrification and nitrifying microbial communities in forest soils

2011 ◽  
Vol 16 (5) ◽  
pp. 351-362 ◽  
Author(s):  
Kazuo Isobe ◽  
Keisuke Koba ◽  
Shigeto Otsuka ◽  
Keishi Senoo
Keyword(s):  
Microbial Communities ◽  
Forest Soils

Catabolic profiles of cultivable microbial communities in forest soils of western Algeria along a latitudinal gradient

2017 ◽  
Vol 9 ◽  
pp. 157-169
Author(s):  
Borsali Amine Habib ◽  
Zouidi Mohamed ◽  
Hachem Kadda ◽  
Gros Raphael ◽  
Theoneste Hagenimana
Keyword(s):  
Microbial Communities ◽  
Forest Soils ◽  
Latitudinal Gradient ◽  
Western Algeria

Shift of the microbial communities from exposed sandstone rocks to forest soils during pedogenesis

2019 ◽  
Vol 140 ◽  
pp. 21-28 ◽  
Author(s):  
Yaping Liu ◽  
Meixi Lu ◽  
Xiaowen Zhang ◽  
Qibiao Sun ◽  
Renlu Liu ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Forest Soils

Changes in nitrogen-cycling microbial communities with depth in temperate and subtropical forest soils

2018 ◽  
Vol 124 ◽  
pp. 218-228 ◽  
Author(s):  
Yuqian Tang ◽  
Guirui Yu ◽  
Xinyu Zhang ◽  
Qiufeng Wang ◽  
Jianping Ge ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Nitrogen Cycling ◽  
Forest Soils ◽  
Subtropical Forest

Altitudinal, seasonal and interannual shifts in microbial communities and chemical composition of soil organic matter in Alpine forest soils

2017 ◽  
Vol 112 ◽  
pp. 1-13 ◽  
Author(s):  
José A. Siles ◽  
Tomas Cajthaml ◽  
Alena Filipová ◽  
Stefano Minerbi ◽  
Rosa Margesin
Keyword(s):  
Organic Matter ◽  
Chemical Composition ◽  
Soil Organic Matter ◽  
Microbial Communities ◽  
Forest Soils ◽  
Alpine Forest

Structure of the Microbial Communities in Coniferous Forest Soils in Relation to Site Fertility and Stand Development Stage

1999 ◽  
Vol 38 (2) ◽  
pp. 168-179 ◽  
Author(s):  
T. Pennanen ◽  
J. Liski ◽  
E. Bååth ◽  
V. Kitunen ◽  
J. Uotila ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Forest Soils ◽  
Coniferous Forest ◽  
Development Stage ◽  
Stand Development ◽  
Site Fertility

scholarly journals Ester Linked Fatty Acid (ELFA) method should be used with caution for interpretating soil microbial communities and their relationships with environmental variables in forest soils

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0251501
Author(s):  
Wenjuan Yu ◽  
Huanhuan Gao ◽  
Hongzhang Kang
Keyword(s):  
Fatty Acid ◽  
Microbial Biomass ◽  
Microbial Communities ◽  
Forest Soils ◽  
Environmental Variables ◽  
Phospholipid Fatty Acid ◽  
Soil Microbial Communities ◽  
Environmental Drivers ◽  
Soil Microbial ◽  
Forest Sites

As an alternative for phospholipid fatty acid (PLFA) analysis, a simpler ester linked fatty acid (ELFA) analysis has been developed to characterize soil microbial communities. However, few studies have compared the two methods in forest soils where the contribution of nonmicrobial sources may be larger than that of microbial sources. Moreover, it remains unclear whether the two methods yield similar relationships of microbial biomass and composition with environmental variables. Here, we compared PLFA and ELFA methods with respect to microbial biomass and composition and their relationships with environmental variables in six oriental oak (Quercus variabilis) forest sites along a 1500-km latitudinal gradient in East China. We found that both methods had a low sample-to-sample variability and successfully separated overall community composition of sites. However, total, bacterial, and fungal biomass, the fungal-to-bacterial ratio, and the gram-positive to gram-negative bacteria ratio were not significantly or strongly correlated between the two methods. The relationships of these microbial properties with environmental variables (pH, precipitation, and clay) greatly differed between the two methods. Our study indicates that despite its simplicity, the ELFA method may not be as feasible as the PLFA method for investigating microbial biomass and composition and for identifying their dominant environmental drivers, at least in forest soils.

Effects of simulated drought and warming on microbial responses to drying and rewetting in contrasting land-uses

2020 ◽  
Author(s):  
Ainara Leizeaga ◽  
Lettice C. Hicks ◽  
Albert C. Brangarí ◽  
Menale Wondie ◽  
Hans Sandén ◽  
...  
Keyword(s):  
Microbial Community ◽  
Microbial Communities ◽  
Bacterial Growth ◽  
Forest Soils ◽  
Fungal Growth ◽  
Land Uses ◽  
Soil Microbial ◽  
Drying And Rewetting ◽  
Microbial Responses ◽  
Simulated Drought

<p>Climate change will increase temperatures and the frequency and intensity of extreme drought and rainfall events. When a drought period is followed by a rainfall event, there is a big CO<sub>2</sub> pulse from soil to the atmosphere which is regulated by soil microorganisms. In the present study, we set out to investigate how simulated drought and warming affects the soil microbial responses to drying and rewetting (DRW), and how those responses will interact with the level of land degradation. Previous work has shown that exposure DRW cycles in the laboratory and in the field can induce changes in the microbial community such that it resumes growth rates faster after a DRW cycle. In addition, it has been observed that a history of drought in both a humid heathland ecosystem in Northern Europe and in semi-arid grasslands in Texas can select for microorganisms with a higher carbon use efficiency (CUE) during DRW. In this study we tested if these observations could be extended to subtropical environments.</p><p>Rain shelters and open top chambers (OTC) were installed in Northwestern Ethiopia in two contrasting land-uses; a degraded cropland and a pristine forest. Soils were sampled (>1-year field treatments) and exposed to a DRW cycle in the laboratory. Microbial growth and respiration responses were followed with high temporal resolution over 3 weeks. We hypothesized that (i) simulated drought would result in more resilient and efficient microbial communities to DRW, while (ii) simulated warming should leave microbial community traits linked to moisture unchanged. In addition, (iii) we hypothesized that microbial communities would recover growth rates faster in the cropland since that ecosystem is more prone to DRW events.</p><p>Microbial responses in both land-uses and treatments universally showed a highly resilient type of community response with both bacterial growth and fungal growth increasing immediately upon rewetting, linked with the expected respiration pulse. The field treatments simulating drought and warming did not affect the already high resilience of soil microbial communities to DRW cycles. However, differences between the rates of recovery between fungi and bacteria were observed. Fungal growth recovered faster than bacterial growth, peaking c. 15 h in comparison to bacteria that peaked at c.20h after rewetting. Simulated drought reduced the microbial CUE during rewetting in croplands without affecting the forest soils. The CUE was also elevated in the warming treatments in both land-uses, and generally higher in croplands than in forest soils. Taken together, the responses in microbial CUE during the rewetting of dry soils were likely linked to either (i) differences in resource availability which were higher in warming treatments and in croplands compared to forests, or (ii) selection of  more efficient microbial communities due to a higher exposure to DRW events driven by the higher temperatures in the cropland, and increased evapotranspiration in the warming treatments.</p><div> <div> <div> </div> </div> </div>

Post-fire transformation of microbial communities and invertebrate complexes in the pine forest soils, Central Siberia

2010 ◽  
Vol 3 (6) ◽  
pp. 653-659 ◽  
Author(s):  
A. V. Bogorodskaya ◽  
E. N. Krasnoshchekova ◽  
I. N. Bezkorovainaya ◽  
G. A. Ivanova
Keyword(s):  
Microbial Communities ◽  
Forest Soils ◽  
Pine Forest ◽  
Central Siberia

Microbial response to carbon and nutrient additions in boreal forest soils and coversoils used during post-mining reclamation

2020 ◽  
Vol 100 (1) ◽  
pp. 69-80 ◽  
Author(s):  
Justine Lejoly ◽  
Sylvie A. Quideau ◽  
Frédéric Rees
Keyword(s):  
Organic Matter ◽  
Community Structure ◽  
Microbial Community ◽  
Microbial Communities ◽  
Forest Soils ◽  
Microbial Community Structure ◽  
Priming Effect ◽  
Phospholipid Fatty Acid ◽  
Natural Forest ◽  
Glucose Addition

Two types of organic-matter-rich coversoils are used during reclamation in the oil sands region of Alberta: forest floor material (FFM) salvaged from upland forests, and peat material (PM) salvaged from boreal wetlands. In this study, we tested the hypothesis that carbon (C) and nutrient availability may limit microbial activity in these reclamation materials by measuring their response to either 13C-labeled glucose or NPKS addition. Coversoil materials were compared with two natural forest soils corresponding to target sites for reclamation. A shift in microbial community structure (determined using phospholipid fatty acid analysis) was detected after both additions, but it was stronger with glucose than NPKS, especially for the two reclamation materials. For all soils, the increase in microbial respiration was stronger after glucose than after NPKS addition. The majority of CO2 originated from soil organic matter (SOM) for the natural forest soils but from glucose for the reclamation materials. In PM, glucose addition triggered SOM mineralization, as shown by a positive priming effect. Despite the absence of a priming effect for FFM, microbial communities incorporated higher rates of glucose into their biomass and respired double the amount of glucose compared with the other materials. Furthermore, the overall microbial community structure in the FFM became more similar to that of the natural forest soil materials following glucose addition. These findings indicate that C and NPKS limitations were stronger for the two reclamation materials than for the two natural forest soils. Furthermore, microbial communities in the two reclamation materials responded more readily to labile C than to NPKS addition.

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