ArticlePlant physiology2022
Fibrillin2 in chloroplast plastoglobules participates in photoprotection and jasmonate-induced senescence.
Article in Plant physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 12 citations in OpenAlex.
- Genome-Wide and GWAS Dissection of Maize Fibrillin Genes Reveals Plastid Regulators of Drought and Salt Stress Tolerance.Current issues in molecular biology · 2026Article
- A conserved sequence insert of fibrillins is involved in plastoglobule association and lipid binding.Plant & cell physiology · 2026Article
- Genome-wide identification and promoter activity analysis of fibrillin gene families in different color carrot roots.Protoplasma · 2026Article
- Multi-Season Genome-Wide Association Study Reveals Loci and Candidate Genes for Fruit Quality and Maturity Traits in Peach.Plants (Basel, Switzerland) · 2026Article
- Chloroplast Responses to Drought: Integrative Mechanisms and Mitigation Strategies.International journal of molecular sciences · 2025Review
- Get the ball rolling: update and perspective on the role of chloroplast plastoglobule-associated proteins under abiotic stress.Journal of experimental botany · 2025Review
- Genome-wide identification and in-silico expression analysis of CCO gene family in sunflower (Helianthus annnus) against abiotic stress.Plant molecular biology · 2024Article
- A TaSnRK1α Modulates TaPAP6L-Mediated Wheat Cold Tolerance through Regulating Endogenous Jasmonic Acid.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
- Know when and how to die: gaining insights into the molecular regulation of leaf senescence.Physiology and molecular biology of plants : an international journal of functional plant biology · 2022Review
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Fibrillins (FBNs) are the major structural proteins of plastoglobules (PGs) in chloroplasts. PGs are associated with defense against abiotic and biotic stresses, as well as lipid storage. Although FBN2 is abundant in PGs, its independent function under abiotic stress has not yet been identified. In this study, the targeting of FBN2 to PGs was clearly demonstrated using an FBN2-YFP fusion protein. FBN2 showed higher expression in green photosynthetic tissues and was upregulated at the transcriptional level under high-light stress. The photosynthetic capacity of fbn2 knockout mutants generated using CRISPR/Cas9 technology decreased rapidly compared with that of wild-type (WT) plants under high-light stress. In addition to the photoprotective function of FBN2, fbn2 mutants had lower levels of plastoquinone-9 and plastochromanol-8. The fbn2 mutants were highly sensitive to methyl jasmonate (MeJA) and exhibited root growth inhibition and a pale-green phenotype due to reduced chlorophyll content. Consistently, upon MeJA treatment, the fbn2 mutants showed faster leaf senescence and more rapid chlorophyll degradation with decreased photosynthetic ability compared with the WT plants. The results of this study suggest that FBN2 is involved in protection against high-light stress and acts as an inhibitor of jasmonate-induced senescence in Arabidopsis (Arabidopsis thaliana).
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