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TranscriptomicsSINGLET OXYGEN RESISTANT 1 links reactive electrophile signaling to singlet oxygen acclimation in Chlamydomonas reinhardtii
To identify components involved in the signal transduction and activation of the singlet oxygen-mediated response, a mutant selection was performed. This led to the isolation of the singlet oxygen resistant 1 (sor1) mutant, which is more tolerant to singlet oxygen-producing chemicals and shows a con...
ORGANISM(S): Chlamydomonas reinhardtii 
2012-04-03 | E-GEOD-33548 | biostudies-arrayexpress
TranscriptomicsA New Mediator of Singlet Oxygen Responses in Chlamydomonas and Arabidopsis
We identified a small zinc finger protein, MBS, as a new mediator of singlet oxygen responses in Chlamydomonas and Arabidopsis. MBS is required for induction of singlet oxygen-dependent gene expression and, upon oxidative stress, accumulates in distinct granules in the cytosol of Arabidopsis cells....
ORGANISM(S): Arabidopsis thaliana 
2014-04-21 | E-GEOD-49596 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of Arabidopsis thaliana (Ler) rosette leaves after the release of singlet oxygen inside plastids
We used the flu mutant of Arabidopsis to detail gene expression in response to singlet oxygen. The conditional flu mutant of Arabidopsis accumulates excess protochlorophyllide in the dark within chloroplast membranes that upon illumination acts as a photosensitizer and generates singlet oxygen. Imme...
ORGANISM(S): Arabidopsis thaliana 
2008-04-05 | E-GEOD-10876 | biostudies-arrayexpress
TranscriptomicsRhodobacter sphaeroides WT 2.4.1 under singlet oxygen stress
Transcriptional and translational profiling of R. sphaeroides WT 2.4.1 under singlet oxygen stress compared to control (no stress) conditions RNA samples collected at time-point zero and at different time-points after singlet oxygen stress were analyzed by two-color microarrays
ORGANISM(S): Rhodobacter sphaeroides 2.4.1 
2012-11-14 | E-GEOD-42244 | biostudies-arrayexpress
TranscriptomicsChloroplast-dependent programmed cell death is activated in Arabidopsis cell cultures after singlet oxygen production by Rose Bengal
Arabidopsis thaliana cell suspension cultures (ACSC) were subjected to 30-min, mild chemical treatments with three different singlet oxygen elicitors at low-medium light conditions (150 µE m–2 s–1) with the aim of getting a better understanding of singlet oxygen-mediated defence responses in plants....
ORGANISM(S): Arabidopsis thaliana 
2014-03-13 | E-GEOD-43551 | biostudies-arrayexpress
MetabolomicsA noteworthy response process of Microcystis aeruginosa induced by exogenous reactive oxygen species in algae-laden water treatment
The effectiveness of reactive oxygen species (ROS) generated by advanced oxidation processes (AOPs) in inactivating harmful algae in drinking water varies considerably. Therefore, the physiological and biochemical reactions of algae need to be considered to clarify the underlying mechanisms. Herein,...
2024-09-26 | MTBLS8024 | MetaboLights
TranscriptomicsRhodobacter sphaeroides 2.4.1 pSurS versus pBBR under singlet oxygen stress.
To learn more about the function of SurS, we constructed an over-expression strain. For this purpose, the surS gene together with its native RpoE promoter was cloned into the middle-copy plasmid pBBR1 and expressed in the R. sphaeroides wild-type 2.4.1 background. The corresponding strain consequent...
ORGANISM(S): Rhodobacter sphaeroides 2.4.1 
2014-07-04 | E-GEOD-59046 | biostudies-arrayexpress
TranscriptomicsRpoE regulon in Rhodobacter sphaeroides
In Rhodobacter sphaeroides a transcriptional response to the reactive oxygen species singlet oxygen is controlled by the group IV sigma factor RpoE and the anti-sigma factor ChrR. In this study, we integrated various large datasets to identify genes within the singlet oxygen stress response that con...
ORGANISM(S): Rhodobacter sphaeroides 2.4.1 
2010-06-30 | E-GEOD-22576 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of Arabidopsis thaliana (Ler) rosette leaves treated with paraquat (methyl viologen)
We used microarrays to detail Arabidopsis gene expression in response to paraquat, a herbicide that acts as a terminal oxidant of photosystem I that in the light leads to the enhanced generation of superoxide and hydrogen peroxide inside plastids. Within a few hours after paraquat treatment changes ...
ORGANISM(S): Arabidopsis thaliana 
2008-04-08 | E-GEOD-10464 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of Arabidopsis wild-type, thylakoidal ascorbate peroxidase overexpressor (over tAPX, line 14/2), flu mutant and flu plants overexpressing thylakoidal ascorbate peroxidase
We used the flu mutant of Arabidopsis and a transgenic line that overexpresses the thylakoid-bound ascorbate peroxidase (tAPX) to address the interactions between different reactive oxygen species (ROS) signaling pathways. The conditional flu mutant of Arabidopsis accumulates excess protochlorophyll...
ORGANISM(S): Arabidopsis thaliana 
2008-04-05 | E-GEOD-10812 | biostudies-arrayexpress
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