ArticleJournal of experimental botany2016
Jasmonic acid is a downstream component in the modulation of somatic embryogenesis by Arabidopsis Class 2 phytoglobin.
Article in Journal of experimental botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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29 citing papers in PubMed, 56 citations in OpenAlex.
- Rational design of induced regeneration via somatic embryogenesis in the absence of exogenous phytohormones.The Plant cell · 2025Article
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- Genetic Transformation ofPlants (Basel, Switzerland) · 2024Article
- Transcriptomic profiling reveals histone acetylation-regulated genes involved in somatic embryogenesis in Arabidopsis thaliana.BMC genomics · 2024Article
- Overexpression ofInternational journal of molecular sciences · 2024Article
- Effect of Mowing on Wheat Growth at Seeding Stage.International journal of molecular sciences · 2023Article
- Preserving root stem cell functionality under low oxygen stress: the role of nitric oxide and phytoglobins.Planta · 2023Review
- Tolerant Epitypes of Elicited Holm Oak Somatic Embryos Could Be Revealed by Challenges in Dual Culture withPlants (Basel, Switzerland) · 2023Article
- CRISPR-Cas9-based precise engineering of SlHyPRP1 protein towards multi-stress tolerance in tomato.Frontiers in plant science · 2023Article
- Transduction of Signals during Somatic Embryogenesis.Plants (Basel, Switzerland) · 2022Review
- Proteomic Analysis ofFrontiers in plant science · 2022Article
- Advances and Perspectives in Tissue Culture and Genetic Engineering of Cannabis.International journal of molecular sciences · 2021Review
- Protuberances are organized distinct regions of long-term callus: histological and transcriptomic analyses in kiwifruit.Plant cell reports · 2021Article
- miRNAs as key regulators via targeting the phytohormone signaling pathways during somatic embryogenesis of plants.3 Biotech · 2020Review
- MYC2-ActivatedPlant physiology · 2020Article
- LAITOR4HPC: A text mining pipeline based on HPC for building interaction networks.BMC bioinformatics · 2020Article
- Article
- Suppression of the maize phytoglobin ZmPgb1.1 promotes plant tolerance against Clavibacter nebraskensis.Planta · 2019Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Previous studies have shown that the beneficial effect of suppression of the Arabidopsis phytoglobin 2 gene, PGB2, on somatic embryogenesis occurs through the accumulation of nitric oxide (NO) within the embryogenic cells originating from the cultured explant. NO activates the expression of Allene oxide synthase (AOS) and Lipoxygenase 2 (LOX2), genes encoding two key enzymes of the jasmonic acid (JA) biosynthetic pathway, elevating JA content within the embryogenic tissue. The number of embryos in the single aos1-1 mutant and pgb2-aos1-1 double mutant declined, and was not rescued by increasing levels of NO stimulating embryogenesis in wild-type tissue. NO also influenced JA responses by up-regulating PLANT DEFENSIN 1 (PDF1) and JASMONATE-ZIM-PROTEIN (JAZ1), as well as down-regulating MYC2. The NO and JA modulation of MYC2 and JAZ1 controlled embryogenesis. Ectopic expression of JAZ1 or suppression of MYC2 promoted the formation of somatic embryos, while repression of JAZ1 and up-regulation of MYC2 reduced the embryogenic performance. Sustained expression of JAZ1 induced the transcription of several indole acetic acid (IAA) biosynthetic genes, resulting in higher IAA levels in the embryogenic cells. Collectively these data fit a model integrating JA in the PGB2 regulation of Arabidopsis embryogenesis. Suppression of PGB2 increases JA through NO. Elevated levels of JA repress MYC2 and induce JAZ1, favoring the accumulation of IAA in the explants and the subsequent production of somatic embryos.
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