ArticlePlant molecular biology2015
Protein repair L-isoaspartyl methyltransferase 1 (PIMT1) in rice improves seed longevity by preserving embryo vigor and viability.
Article in Plant molecular biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 58 citations in OpenAlex.
- Natural variation inScience advances · 2026Article
- Rice PROTEIN L-ISOASPARTYL METHYLTRANSFERASES provides tolerance against sheath blight disease and repairs ALDH and PBZ1.Nature communications · 2026Article
- Natural variation in the ZmPIMT1 promoter enhances seed aging tolerance by regulating PABP2 repair in maize.The Plant cell · 2025Article
- Overexpression of the ABA Synthesis Gene OsABA2 Enhances Seed Storability in Rice.Rice (New York, N.Y.) · 2025Article
- Comparative Metabolic Analysis of DifferentMetabolites · 2025Article
- Integrated multispectral imaging, germination phenotype, and transcriptomic analysis provide insights into seed vigor responsive mechanisms in quinoa under artificial accelerated aging.Frontiers in plant science · 2024Article
- Full-Length Transcriptome Sequencing Reveals the Molecular Mechanism ofAntioxidants (Basel, Switzerland) · 2023Article
- Identification and Functional Analysis of Long Non-Coding RNA (lncRNA) in Response to Seed Aging in Rice.Plants (Basel, Switzerland) · 2022Article
- Biological effects of the loss of homochirality in a multicellular organism.Nature communications · 2022Article
- Raffinose family oligosaccharides (RFOs): role in seed vigor and longevity.Bioscience reports · 2022Review
- Genetic Aspects and Molecular Causes of Seed Longevity in Plants-A Review.Plants (Basel, Switzerland) · 2022Review
- QTL mapping and KASP marker development for seed vigor related traits in common wheat.Frontiers in plant science · 2022Article
- Quantitative Trait Locus Mapping of Seed Vigor in Soybean under -20 °C Storage and Accelerated Aging Conditions via RAD Sequencing.Current issues in molecular biology · 2021Article
- Genome-wide association analysis for yield-related traits at the R6 stage in a Chinese soybean mini core collection.Genes & genomics · 2021Article
- Genome-Wide Association Study Reveals the QTLs for Seed Storability in World Rice Core Collections.Plants (Basel, Switzerland) · 2021Article
- Comparative Proteomics at the Critical Node of Vigor Loss in Wheat Seeds Differing in Storability.Frontiers in plant science · 2021Article
- Advances in the Identification of Quantitative Trait Loci and Genes Involved in Seed Vigor in Rice.Frontiers in plant science · 2021Review
- Shotgun proteomics of Brassica rapa seed proteins identifies vicilin as a major seed storage protein in the mature seed.PloS one · 2021Article
- QTL mapping and candidate gene analysis of seed vigor-related traits during artificial aging in wheat (Triticum aestivum).Scientific reports · 2020Article
- The Arabidopsis TRM61/TRM6 complex is a bona fide tRNA N1-methyladenosine methyltransferase.Journal of experimental botany · 2020Article
Corrections and comments
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Authors and funding
10 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Damaged proteins containing abnormal isoaspartyl (isoAsp) accumulate as seeds age and the abnormality is thought to undermine seed vigor. Protein-L-isoaspartyl methyltransferase (PIMT) is involved in isoAsp-containing protein repair. Two PIMT genes from rice (Oryza sativa L.), designated as OsPIMT1 and OsPIMT2, were isolated and investigated for their roles. The results indicated that OsPIMT2 was mainly present in green tissues, but OsPIMT1 largely accumulated in embryos. Confocal visualization of the transient expression of OsPIMTs showed that OsPIMT2 was localized in the chloroplast and nucleus, whereas OsPIMT1 was predominately found in the cytosol. Artificial aging results highlighted the sensitivity of the seeds of OsPIMT1 mutant line when subjected to accelerated aging. Overexpression of OsPIMT1 in transgenic seeds reduced the accumulation of isoAsp-containing protein in embryos, and increased embryo viability. The germination percentage of transgenic seeds overexpressing OsPIMT1 increased 9-15% compared to the WT seeds after 21-day of artificial aging, whereas seeds from the OsPIMT1 RNAi lines overaccumulated isoAsp in embryos and experienced rapid loss of seed germinability. Taken together, these data strongly indicated that OsPIMT1-related seed longevity improvement is probably due to the repair of detrimental isoAsp-containing proteins that over accumulate in embryos when subjected to accelerated aging.
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