ArticleFrontiers in plant science2016
The Over-expression of the Plastidial Transglutaminase from Maize in Arabidopsis Increases the Activation Threshold of Photoprotection.
Article in Frontiers in plant science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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Who cites it
9 citing papers in PubMed, 18 citations in OpenAlex.
- At the core of global bioenergy: polyamines and transglutaminases in chloroplasts.Amino acids · 2026Review
- Review
- Genome-Wide Identification and Functional Analysis of Polyamine Oxidase Genes in Maize Reveal Essential Roles in Abiotic Stress Tolerance.Frontiers in plant science · 2022Article
- Genome-Wide Identification of Seven Polyamine Oxidase Genes inFrontiers in plant science · 2020Article
- The Interplay among Polyamines and Nitrogen in Plant Stress Responses.Plants (Basel, Switzerland) · 2019Review
- Overexpression of Transglutaminase from Cucumber in Tobacco Increases Salt Tolerance through Regulation of Photosynthesis.International journal of molecular sciences · 2019Article
- TGase positively regulates photosynthesis via activation of Calvin cycle enzymes in tomato.Horticulture research · 2019Article
- Polyamine Catabolism in Plants: A Universal Process With Diverse Functions.Frontiers in plant science · 2019Review
- Expression of Foreign Genes Demonstrates the Effectiveness of Pollen-Mediated Transformation inFrontiers in plant science · 2017Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plastidial transglutaminase is one of the most promising enzymes in chloroplast bioenergetics due to its link with polyamine pathways and the cross talk with signals such as Ca(2+) and GTP. Here, we show the effect of the increase of transglutaminase activity in Arabidopsis by using genetic transformation techniques. These lines fulfill their biological cycle normally (normal growth in soil, production of viable seeds) and show a relatively mild increase in transglutaminase activity (127%). These overexpressors of transglutaminase (OE TGase) have an extended stroma thylakoid network (71% higher number of PSIIβ centers), similar chlorophyll content (-4%), higher linear electron flow (+13%), and higher threshold of photoprotection activation (∼100%). On the other hand OE TGase showed a reduced maximum photochemistry of PSII (-6.5%), a smaller antenna per photosystem II (-25%), a lower photoprotective "energization" quenching or qE (-77% at 490 μmol photons m(-2) s(-1)) due to a higher threshold of qE activation and slightly lower light induced proton motive force (-17%). The role of the polyamines and of the transglutaminase in the regulation of chemiosmosis and photoprotection in chloroplasts is discussed.
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Registered trials
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