ArticleJournal of experimental botany2008
Expression of the beta-oxidation gene 3-ketoacyl-CoA thiolase 2 (KAT2) is required for the timely onset of natural and dark-induced leaf senescence in Arabidopsis.
Article in Journal of experimental botany, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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Who cites it
35 citing papers in PubMed, 61 citations in OpenAlex.
- Genome-Wide Identification and Characterization of Tomato Fatty Acid β-Oxidase Family GenesInternational journal of molecular sciences · 2024Article
- Shade-Induced Leaf Senescence in Plants.Plants (Basel, Switzerland) · 2023Review
- Overexpression of Bacterial Beta-Ketothiolase Improves Flax (Metabolites · 2023Article
- Jasmonate Signaling Pathway Modulates Plant Defense, Growth, and Their Trade-Offs.International journal of molecular sciences · 2022Review
- New Advances in the Regulation of Leaf Senescence by Classical and Peptide Hormones.Frontiers in plant science · 2022Review
- Tomato COI gene family identification and expression under abiotic and phytohormone stress.Journal of genetics · 2021Article
- Article
- Ring/U-Box Protein AtUSR1 Functions in Promoting Leaf Senescence Through JA Signaling Pathway in Arabidopsis.Frontiers in plant science · 2020Article
- Nitric oxide deficiency decreases C-repeat binding factor-dependent and -independent induction of cold acclimation.Journal of experimental botany · 2019Article
- Peroxisomal β-oxidation regulates histone acetylation and DNA methylation inProceedings of the National Academy of Sciences of the United States of America · 2019Article
- MicroRNA Sequencing RevealedInternational journal of molecular sciences · 2019Article
- Proteomic analysis of gametophytic sex expression in the fern Ceratopteris thalictroides.PloS one · 2019Article
- Genome-wide identification and analysis of the COI gene family in wheat (Triticum aestivum L.).BMC genomics · 2018Article
- Nitric Oxide Controls Constitutive Freezing Tolerance in Arabidopsis by Attenuating the Levels of Osmoprotectants, Stress-Related Hormones and Anthocyanins.Scientific reports · 2018Article
- Suppressor of Overexpression of CO 1 Negatively Regulates Dark-Induced Leaf Degreening and Senescence by Directly Repressing Pheophytinase and Other Senescence-Associated Genes in Arabidopsis.Plant physiology · 2017Article
- Dynamics of gene expression during development and expansion of vegetative stem internodes of bioenergy sorghum.Biotechnology for biofuels · 2017Article
- Phytohormone and Light Regulation of Chlorophyll Degradation.Frontiers in plant science · 2017Review
- The Roles of β-Oxidation and Cofactor Homeostasis in Peroxisome Distribution and Function in Arabidopsis thaliana.Genetics · 2016Article
- Leaf senescence induced by EGY1 defection was partially restored by glucose in Arabidopsis thaliana.Botanical studies · 2015Article
- Article
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2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The onset of leaf senescence is regulated by a complex mechanism involving positive and negative regulators. Among positive regulators, jasmonic acid (JA) accumulates in senescing leaves and the JA-insensitive coi1-1 mutant displays delayed leaf senescence in Arabidopsis. A strong activated expression of the gene coding for the JA-biosynthetic beta-oxidation enzyme 3-ketoacyl-CoA thiolase 2 (KAT2) in natural and dark-induced senescing leaves of Arabidopsis thaliana is reported here. By using KAT2::GUS and KAT2::LUC transgenic plants, it was observed that dark-induced KAT2 activation occurred both in excised leaves as well as in whole darkened plants. The KAT2 activation associated with dark-induced senescence occurred soon after a move to darkness, and it preceded the detection of symptoms and the expression of senescence-associated gene (SAG) markers. Transgenic plants with reduced expression of the KAT2 gene showed a significant delayed senescence both in natural and dark-induced processes. The rapid induction of the KAT2 gene in senescence-promoting conditions as well as the delayed senescence phenotype and the reduced SAG expression in KAT2 antisense transgenic plants, point to KAT2 as an essential component for the timely onset of leaf senescence in Arabidopsis.
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