ArticlePhotosynthesis research2011
Polyamines stimulate non-photochemical quenching of chlorophyll a fluorescence in Scenedesmus obliquus.
Article in Photosynthesis research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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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.
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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.
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Who cites it
8 citing papers in PubMed, 26 citations in OpenAlex.
- Exogenous putrescine enhances lime stress tolerance in grapevine rootstock-scion combinations.BMC plant biology · 2025Article
- Putrescine: A Key Metabolite Involved in Plant Development, Tolerance and Resistance Responses to Stress.International journal of molecular sciences · 2022Review
- A Chlorophyte Alga Utilizes Alternative Electron Transport for Primary Photoprotection.Plant physiology · 2020Article
- Polyamines in Microalgae: Something Borrowed, Something New.Marine drugs · 2018Review
- Role of Ions in the Regulation of Light-Harvesting.Frontiers in plant science · 2016Review
- Silencing S-Adenosyl-L-Methionine Decarboxylase (SAMDC) in Nicotiana tabacum Points at a Polyamine-Dependent Trade-Off between Growth and Tolerance Responses.Frontiers in plant science · 2016Article
- Non-coding RNAs' partitioning in the evolution of photosynthetic organisms via energy transduction and redox signaling.RNA biology · 2015Article
- Role of plastid transglutaminase in LHCII polyamination and thylakoid electron and proton flow.PloS one · 2012Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Polyamines (PAs) are small metabolites that are produced and oxidized in chloroplasts with an obscure mode of action. Recently, we showed that qE is stimulated by PAs in higher plants (Nicotiana tabacum) and in genetically modified plants with elevated thylakoid-associated PAs (Ioannidis and Kotzabasis Biochim Biophys Acta 1767:1371-1382, 2007; Ioannidis et al. Biochim Biophys Acta 1787:1215-1222, 2009). Here, we investigated further their quenching properties both in vivo in green algae and in vitro is isolated LHCII. In vivo spermine up-regulates NPQ in Scenedesums obliquus about 30%. In vitro putrescine--the obligatory metabolic precursor of PAs--has a marginal quenching effect, while spermidine and spermine exhibit strong quenching abilities in isolated LHCII up to 40%. Based on available 3D models of LHCII we report a special cavity of about 600 Å(3) and a near-by larger pocket in the trimeric LHCII that could be of importance for the stimulation of qE by amines.
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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.