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MetabolomicsLegume rhizodeposition promotes nitrogen fixation by soil microbiota under crop diversification

Biological nitrogen fixation by free-living bacteria and rhizobial symbiosis with legumes plays a key role in sustainable crop production. Here, we study how different crop combinations influence the interaction between peanut plants and their rhizosphere microbiota via metabolite deposition and ...

2024-03-19 | MTBLS6537 | MetaboLights
MetabolomicsCoupled nitrogen fixation and substrate stabilization drive ecological strategy shifts during microbial succession

Background:

Primary succession is predicted to proceed through shifts from stress-tolerant to competitive to cooperative ecological strategies as resource availability increases, yet molecular evidence for these transitions in microbial systems remains limited. Here, we used an integrated m...

2026-03-12 | MTBLS14041 | MetaboLights
MetabolomicsArsenic-induced enhancement of diazotrophic recruitment and nitrogen fixation in Pteris vittata rhizosphere
Heavy metal contamination poses an escalating global challenge to soil ecosystems. Hyperaccumulators play a crucial role in environmental remediation and resource recovery. The enrichment of diazotrophs and resulting nitrogen accumulation promoted hyperaccumulator growth and facilitated phytoremedia...
2024-11-01 | MTBLS11419 | MetaboLights
TranscriptomicsRhizobium etli CFN42 wild type transcriptional profiling was compared between free living and symbiosis conditions
Rhizobium etli is a bacteria that fix nitrogen in symbiotic activity with Phaseolus vulgaris, the common bean plant. In order to accomplish this nitrogen reduction a especial environment is induced in nodules such that gene expression of bacteroid suffer a significant change with respect to its wild...
ORGANISM(S): Rhizobium etli CFN 42 
2014-02-03 | E-GEOD-21638 | biostudies-arrayexpress
ProteomicsProtein expression of Rhodopseudomonas palustris CGA009 during anaerobic nitrogen fixation or non nitrogen fixation
Rhodopseudomonas palustris CGA009 grown anaerobic in photosynthetic medium (PM) or Nitrogen-fixing medium (NFM)
ORGANISM(S): Rhodopseudomonas Palustris Cga009 
PXD042610 |
MetabolomicsImpacts of fixation processing workflows on the volatile and non-volatile metabolomic profiles of Gougunao green tea

This study compared four fixation processing workflows and their effects on the volatile and non-volatile metabolomic profiles of Gougunao green tea: fully mechanical fixation (M1), mechanical-manual hybrid fixation (M2), manual-mechanical hybrid fixation (M3), and fully manual fixation (M4). An ...

2026-07-17 | MTBLS15065 | MetaboLights
MetabolomicsEnhanced photosynthetic CO2 fixation in mutualistic Chlorella sp. and Mesorhizobium loti co-cultures

It was further confirmed the stimulatory effect of M. loti-derived eCA on microalgae, highlighting key carbon metabolic pathways, including the Calvin cycle, TCA cycle and antioxidant defense response.

2025-01-20 | MTBLS11422 | MetaboLights
TranscriptomicsTranscription profiling of G sulfurreducens GGS nitrogen fixation
G. sulfurreducens (ATCC #51573) was obtained from the laboratory culture collection of Dr. Derek Lovley. Cells were grown under strict anaerobic conditions at 30 °C in chemostats, as previously described (for more information see Esteve-Núñez, A., M. M. Rothermich, M. Sharma, and D. R. Lovley. 2004....
ORGANISM(S): Geobacter sulfurreducens 
2005-01-01 | E-TIGR-82 | biostudies-arrayexpress
TranscriptomicsFormalin Fixation at Low Temperature Better Preserves Nucleic Acid Integrity
INTRODUCTION. Fixation with formalin, a widely adopted procedure to preserve tissue samples, leads to extensive degradation of nucleic acids and thereby compromises procedures like microarray-based gene expression profiling. We hypothesized that RNA fragmentation is caused by activation of RNAses du...
ORGANISM(S): Homo sapiens 
2011-09-04 | E-GEOD-27175 | biostudies-arrayexpress
TranscriptomicsMicroarray was used to study the gene expression of P. stutzeri A1501 under different growth conditions
Nitrogen fixation is a highly energy-demanding process and highly regulated at multiple levels. The two major signals that regulate nitrogen fixation in most diazotrophs are oxygen and ammonia. In order to study the complex regulated mechanism and to highlight the complete nitrogen fixing system in ...
ORGANISM(S): Pseudomonas stutzeri A1501 
2010-06-11 | E-GEOD-6572 | biostudies-arrayexpress
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