ArticlePlanta2009
Occurrence and environmental stress responses of two plastid terminal oxidases in Haematococcus pluvialis (Chlorophyceae).
Article in Planta, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
22 citing papers in PubMed, 72 citations in OpenAlex.
- Photoprotective strategies of Haematococcus lacustris in response to desiccation stress.Protoplasma · 2026Article
- Unveiling astaxanthin: biotechnological advances, delivery systems and versatile applications in nutraceuticals and cosmetics.Archives of microbiology · 2025Review
- Article
- Article
- Differential expression of recently duplicated PTOX genes in Glycine max during plant development and stress conditions.Journal of bioenergetics and biomembranes · 2019Article
- Effects of Methanol on Carotenoids as Well as Biomass and Fatty Acid Biosynthesis inApplied and environmental microbiology · 2019Article
- Differences between Motile and Nonmotile Cells ofMarine drugs · 2019Article
- Functional analysis of photosynthetic pigment binding complexes in the green alga Haematococcus pluvialis reveals distribution of astaxanthin in Photosystems.Scientific reports · 2017Article
- An Integrated Analysis of miRNAs and Methylated Genes Encoding mRNAs and lncRNAs in Sheep Breeds with Different Fecundity.Frontiers in physiology · 2017Article
- Astaxanthin-Producing Green Microalga Haematococcus pluvialis: From Single Cell to High Value Commercial Products.Frontiers in plant science · 2016Review
- Tuning of Redox Regulatory Mechanisms, Reactive Oxygen Species and Redox Homeostasis under Salinity Stress.Frontiers in plant science · 2016Review
- Recent breakthroughs in the biology of astaxanthin accumulation by microalgal cell.Photosynthesis research · 2015Review
- Chemicals to enhance microalgal growth and accumulation of high-value bioproducts.Frontiers in microbiology · 2015Review
- Quantitative proteomic analysis of thylakoid from two microalgae (Haematococcus pluvialis and Dunaliella salina) reveals two different high light-responsive strategies.Scientific reports · 2014Article
- Comparative analyses of lipidomes and transcriptomes reveal a concerted action of multiple defensive systems against photooxidative stress in Haematococcus pluvialis.Journal of experimental botany · 2014Article
- Phospholipid metabolism in an industry microalga Chlorella sorokiniana: the impact of inoculum sizes.PloS one · 2013Article
- Expression of fatty acid synthesis genes and fatty acid accumulation in haematococcus pluvialis under different stressors.Biotechnology for biofuels · 2012Article
- The Mechanism of Variegation in immutans Provides Insight into Chloroplast Biogenesis.Frontiers in plant science · 2012Article
- Plastid terminal oxidase 2 (PTOX2) is the major oxidase involved in chlororespiration in Chlamydomonas.Proceedings of the National Academy of Sciences of the United States of America · 2011Article
- Physiological roles of plastid terminal oxidase in plant stress responses.Journal of biosciences · 2011Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The plastid terminal oxidase (PTOX) is a plastoquinol oxidase involved in carotenoid biosynthesis in higher plants, and may also represent the elusive oxidase in chlororespiration. Haematococcus pluvialis is a green alga that has the ability to synthesize and accumulate large amounts of the red carotenoid astaxanthin (ca. 2% of dry weight) under various stress conditions. However, the occurrence and function of PTOX in astaxanthin synthesis and the stress response in this organism is unknown. In this study, two ptox cDNAs were cloned and sequenced from H. pluvialis and were designated as ptox1 and ptox2. Genome sequence analysis and database searching revealed that duplication of PTOX gene occurred in certain eukaryotic algae, but not in cyanobacteria and higher plants. The physiological and biochemical evidence indicated that PTOX is involved in astaxanthin synthesis and plays a critical protective role against stress. Analysis of the transcriptional expression of the PTOXs and phytoene desaturase gene further suggests that it may be PTOX1 rather than PTOX2 that is co-regulated with astaxanthin synthesis. The fact that the changes in transcripts of ptoxs in response to high light and other stressors and the differential expression of ptox1 and ptox2, suggests that PTOX, coupled with astaxanthin synthesis pathway, exerts broad, yet undefined functions in addition to those identified in higher plants.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.