Deciphering factors driving soil microbial life‐history strategies in restored grasslands

Yang, Yang; Dou, Yanxing; Wang, Baorong; Xue, Zhijing; Wang, Yunqiang; An, Shaoshan; Chang, Scott X.

doi:10.1002/imt2.66

Cited by 56 publications

(20 citation statements)

References 113 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is noteworthy that before and after irrigation, there was no difference in CH 4 emissions between irrigated and non-irrigated treatments. Some authors have reported that soil can convert from a net sink to source depending on soil properties 58 – 60 . For example, Jäckel et al 61 reported that when soil moisture decreased to less than 20% water holding capacity, soils turned from being sinks into a net source of atmospheric CH 4 .…”

Section: Resultsmentioning

confidence: 99%

Effects of acidifiers on soil greenhouse gas emissions in calcareous soils in a semi-arid area

Derafshi

Lajayer

Hassani

et al. 2023

Sci Rep

View full text Add to dashboard Cite

In most agricultural fields, when soil pH is high, elemental sulfur or sulfuric acid are used to reduce soil pH and increase the availability of macro and micronutrients for optimum crop yield. However, how these inputs impact soil greenhouse gas emissions is unknown. This study aimed to measure the amount of greenhouse gas emissions and pH after the application of various doses of elemental sulfur (ES) and sulfuric acid (SA). Using static chambers, this study quantifies soil greenhouse gas emissions (CO2, N2O, and CH4) for 12 months after the application of ES (200, 400, 600, 800, and 1000 kg ha−1) and SA (20, 40, 60, 80 and 100 kg ha−1) to a calcareous soil (pH 8.1) in Zanjan, Iran. Also, in order to simulate rainfed and dryland farming which are common practices in this area, this study was conducted with and without sprinkler irrigation. Application of ES slowly decreased soil pH (more than half a unit) over the year whereas application of SA temporarily reduced the pH (less than a half unit) for a few weeks. CO2 and N2O emissions and CH4 uptake were maximum during summer and lowest in winter. Cumulative CO2 fluxes ranged from 1859.2 kg−1 CO2-C ha−1 year−1 in the control treatment to 2269.6 kg CO2-C ha−1 year−1 in the 1000 kg ha−1 ES treatment. Cumulative fluxes for N2O-N were 2.5 and 3.7 kg N2O-N ha−1 year−1 and cumulative CH4 uptakes were 0.2 and 2.3 kg CH4-C ha−1 year−1 in the same treatments. Irrigation significantly increased CO2 and N2O emissions and, depending on the amount of ES applied, decreased or increased CH4 uptake. SA application had a negligible effect on GHGs emissions in this experiment and only the highest amount of SA altered GHGs emissions.

show abstract

Section: Resultsmentioning

confidence: 99%

Effects of acidifiers on soil greenhouse gas emissions in calcareous soils in a semi-arid area

Derafshi

Lajayer

Hassani

et al. 2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…In particular, the bacterial composition shifted dramatically along the revegetated chronosequence, transitioning from Actinobacteria ‐ to Proteobacteria ‐dominant (Figure 4). Copiotrophic Proteobacteria increased, whereas oligotrophic Actinobacteria decreased under the C‐ and N‐rich conditions of revegetation (Delgado‐Baquerizo et al, 2017; Yang, Dou, et al, 2022). However, significant increases in Actinobacteria abundance were observed at the AL40 sites (Figure 4).…”

Section: Discussionmentioning

confidence: 99%

“…Proteobacteria increased, whereas oligotrophic Actinobacteria decreased under the C-and N-rich conditions of revegetation (Delgado-Baquerizo et al, 2017;Yang, Dou, et al, 2022). However, significant increases in Actinobacteria abundance were observed at the AL40 sites (Figure 4).…”

Section: Changes In Microbial Community Structure Mediate Biomass Sto...mentioning

confidence: 95%

Afforested and abandoned land ecosystems exhibit distinct soil microbial biomass stoichiometric homeostasis over chronosequence

Wang

Zhang

et al. 2023

Land Degrad Dev

View full text Add to dashboard Cite

Revegetation influences microbial biomass stoichiometry by altering the substrate conditions, yet the differences in microbial stoichiometry homeostasis and the underlying drivers under different revegetation approaches remain unexplored. Here, we selected sites across three age classes of Robinia pseudoacacia plantation (RP) and abandoned land (AL), and quantified the microbial stoichiometric characteristics during farmland‐initiated restoration. Plant community composition, leaf and soil nutrients, and microbial community composition and diversity were also measured. We found that revegetation of former farmland under both restoration types resulted in non‐isometric changes in soil carbon (C), nitrogen (N), and phosphorus (P) contents, that is, decoupling of soil C and N from P. However, AL and RP succession exhibited homeostatic and plastic microbial biomass stoichiometry, respectively, in response to altered substrate stoichiometry. These differences were associated with adjustments in the above‐ and belowground biomes. Specifically, the synergistic increase of Compositae and Actinobacteria in the late AL succession allowed the ecosystem to reduce P demand and maintain microbial stoichiometric homeostasis. In contrast, higher leaf C and N input during RP succession may have resulted excessive microbial storage of elements, which in turn leads to stoichiometric convergence between microbial biomass and soil resources. In addition, RP succession caused changes in microbial community structure, mainly the continuous increase of Proteobacteria (copiotrophs, r‐strategists), which also potentially increased the requirement for resources to maintain homeostasis and ensure the rapid growth. These findings demonstrate that AL has a comparatively greater efficacy in maintaining microbial stoichiometric homeostasis during long‐term revegetation. Our study also highlights the importance of appropriately managing existing RP plantations to alleviate the pressure of P deficiency and sustainably maintain this fragile ecosystem.

show abstract

“…In addition, innovative cultivation methods (Figure 3), such as isolation chip technology that allows microorganisms to exchange metabolites with the environment and other species [89], can increase the number of cultivable microorganisms. Besides, an immunomagnetic bead‐enriched culturomics method is reported and has the ability to specifically isolate potential pathobionts for a particular disease of interest [93]. It is worth noting that microbial interactions have traditionally been ignored in cultivation method design, which might be one key reason that many as‐yet‐uncultivated microbes remain uncultivable.…”

Section: Multi‐omics‐guided Microbial Cultivationmentioning

confidence: 99%

Cultivation strategies for prokaryotes from extreme environments

Yang

Lian

Liu

et al. 2023

iMeta

View full text Add to dashboard Cite

The great majority of microorganisms are as‐yet‐uncultivated, mostly found in extreme environments. High‐throughput sequencing provides data‐rich genomes from single‐cell and metagenomic techniques, which has enabled researchers to obtain a glimpse of the unexpected genetic diversity of “microbial dark matter.” However, cultivating microorganisms from extreme environments remains essential for dissecting and utilizing the functions of extremophiles. Here, we provide a straightforward protocol for efficiently isolating prokaryotic microorganisms from different extreme habitats (thermal, xeric, saline, alkaline, acidic, and cryogenic environments), which was established through previous successful work and our long‐term experience in extremophile resource mining. We propose common processes for extremophile isolation at first and then summarize multiple cultivation strategies for recovering prokaryotic microorganisms from extreme environments and meanwhile provide specific isolation tips that are always overlooked but important. Furthermore, we propose the use of multi‐omics‐guided microbial cultivation approaches for culturing these as‐yet‐uncultivated microorganisms and two examples are provided to introduce how these approaches work. In summary, the protocol allows researchers to significantly improve the isolation efficiency of pure cultures and novel taxa, which therefore paves the way for the protection and utilization of microbial resources from extreme environments.

show abstract

Deciphering factors driving soil microbial life‐history strategies in restored grasslands

Cited by 56 publications

References 113 publications

Effects of acidifiers on soil greenhouse gas emissions in calcareous soils in a semi-arid area

Effects of acidifiers on soil greenhouse gas emissions in calcareous soils in a semi-arid area

Afforested and abandoned land ecosystems exhibit distinct soil microbial biomass stoichiometric homeostasis over chronosequence

Cultivation strategies for prokaryotes from extreme environments

Contact Info

Product

Resources

About