Comparison of Intact Arabidopsis thaliana Leaf Transcript Profiles during Treatment with Inhibitors of Mitochondrial Electron Transport and TCA Cycle
- Duke University, Durham, NC (United States); Univ. of Arizona, Tucson, AZ (United States)
- Arizona State University, Tempe, AZ (United States)
- Michigan State University, East Lansing, MI (United States)
- University of Arizona, Tucson, AZ (United States)
Plant mitochondria signal to the nucleus leading to altered transcription of nuclear genes by a process called mitochondrial retrograde regulation (MRR). MRR is implicated in metabolic homeostasis and responses to stress conditions. Mitochondrial reactive oxygen species (mtROS) are a MRR signaling component, but whether all MRR requires ROS is not established. Inhibition of the cytochrome respiratory pathway by antimycin A (AA) or the TCA cycle by monofluoroacetate (MFA), each of which initiates MRR, can increase ROS production in some plant cells. We found that for AA and MFA applied to leaves of soil-grown Arabidopsis thaliana plants, ROS production increased with AA, but not with MFA, allowing comparison of transcript profiles under different ROS conditions during MRR. Variation in transcript accumulation over time for eight nuclear encoded mitochondrial protein genes suggested operation of both common and distinct signaling pathways between the two treatments. Consequences of mitochondrial perturbations for the whole transcriptome were examined by microarray analyses. Expression of 1316 and 606 genes was altered by AA and MFA, respectively. A subset of genes was similarly affected by both treatments, including genes encoding photosynthesis-related proteins. MFA treatment resulted in more down-regulation. Functional gene category (MapMan) and cluster analyses showed that genes with expression levels affected by perturbation from AA or MFA inhibition were most similarly affected by biotic stresses such as pathogens. Overall, the data provide further evidence for the presence of mtROS-independent MRR signaling, and support the proposed involvement of MRR and mitochondrial function in plant responses to biotic stress.
- Research Organization:
- Michigan State University, East Lansing, MI (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE Office of Science (SC)
- Grant/Contract Number:
- FG02-91ER20021
- OSTI ID:
- 1904596
- Journal Information:
- PLoS ONE, Journal Name: PLoS ONE Journal Issue: 9 Vol. 7; ISSN 1932-6203
- Publisher:
- Public Library of ScienceCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Functional characterization and organ distribution of three mitochondrial ATP–Mg/Pi carriers in Arabidopsis thaliana
|
journal | October 2015 |
DEG10 contributes to mitochondrial proteostasis, root growth, and seed yield in Arabidopsis
|
journal | June 2019 |
DEWAX Transcription Factor Is Involved in Resistance to Botrytis cinerea in Arabidopsis thaliana and Camelina sativa
|
journal | July 2017 |
Alternative Oxidase: A Mitochondrial Respiratory Pathway to Maintain Metabolic and Signaling Homeostasis during Abiotic and Biotic Stress in Plants
|
journal | March 2013 |
Similar Records
Withaferin A induces apoptosis by ROS-dependent mitochondrial dysfunction in human colorectal cancer cells
Identification of a rare homozygous c.790C>T variation in the TFB2M gene in Korean patients with autism spectrum disorder
Mitochondrial reactive oxygen species mediate the lipopolysaccharide-induced pro-inflammatory response in human gingival fibroblasts
Journal Article
·
Sat Sep 15 04:00:00 UTC 2018
· Biochemical and Biophysical Research Communications
·
OSTI ID:23103629
Identification of a rare homozygous c.790C>T variation in the TFB2M gene in Korean patients with autism spectrum disorder
Journal Article
·
Sat Dec 15 04:00:00 UTC 2018
· Biochemical and Biophysical Research Communications
·
OSTI ID:23105658
Mitochondrial reactive oxygen species mediate the lipopolysaccharide-induced pro-inflammatory response in human gingival fibroblasts
Journal Article
·
Sat Sep 10 04:00:00 UTC 2016
· Experimental Cell Research
·
OSTI ID:22649762