ArticleJournal of experimental botany2012
Embryo growth, testa permeability, and endosperm weakening are major targets for the environmentally regulated inhibition of Lepidium sativum seed germination by myrigalone A.
Article in Journal of experimental botany, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 46 citations in OpenAlex.
- Article
- Functional mechanism study of the allelochemical myrigalone A identifies a group of ultrapotent inhibitors of ethylene biosynthesis in plants.Plant communications · 2024Article
- A commitment for life: Decades of unraveling the molecular mechanisms behind seed dormancy and germination.The Plant cell · 2024Review
- The Phytotoxin Myrigalone A Triggers a Phased Detoxification Programme and InhibitsInternational journal of molecular sciences · 2022Article
- Exogenous gibberellin can effectively and rapidly break intermediate physiological dormancy ofFrontiers in plant science · 2022Article
- Allelopathy: The Chemical Language of Plants.Progress in the chemistry of organic natural products · 2020Review
- phyB and HY5 are Involved in the Blue Light-Mediated Alleviation of Dormancy ofInternational journal of molecular sciences · 2019Article
- The biochemistry underpinning industrial seed technology and mechanical processing of sugar beet.Planta · 2019Article
- α-Xylosidase plays essential roles in xyloglucan remodelling, maintenance of cell wall integrity, and seed germination in Arabidopsis thaliana.Journal of experimental botany · 2016Article
- Hydrogen cyanamide breaks grapevine bud dormancy in the summer through transient activation of gene expression and accumulation of reactive oxygen and nitrogen species.BMC plant biology · 2016Article
- Phytohormones Signaling Pathways and ROS Involvement in Seed Germination.Frontiers in plant science · 2016Review
- Promotion of testa rupture during garden cress germination involves seed compartment-specific expression and activity of pectin methylesterases.Plant physiology · 2015Article
- DELAY OF GERMINATION 1 mediates a conserved coat-dormancy mechanism for the temperature- and gibberellin-dependent control of seed germination.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- Involvement of reactive oxygen species in endosperm cap weakening and embryo elongation growth during lettuce seed germination.Journal of experimental botany · 2014Article
- Article
- Spatiotemporal seed development analysis provides insight into primary dormancy induction and evolution of the Lepidium delay of germination1 genes.Plant physiology · 2013Article
Corrections and comments
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Authors and funding
9 authors at 4 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Myrigalone A (MyA) is a rare flavonoid in fruit leachates of Myrica gale, a deciduous shrub adapted to flood-prone habitats. As a putative allelochemical it inhibits seed germination and seedling growth. Using Lepidium sativum as a model target species, experiments were conducted to investigate how environmental cues modulate MyA's interference with key processes of seed germination. Time course analyses of L. sativum testa and endosperm rupture under different light conditions and water potentials were combined with quantifying testa permeability, endosperm weakening, tissue-specific gibberellin (GA) and abscisic acid (ABA) contents, as well as embryo growth and apoplastic superoxide production important for cell expansion growth. Lepidium sativum testa permeability and early water uptake by imbibition is enhanced by MyA. During late germination, MyA inhibits endosperm weakening and embryo growth, both processes required for endosperm rupture. Inhibition of embryo cell expansion by MyA depends on environmental cues, which is evident from the light-modulated severity of the MyA-mediated inhibition of apoplastic superoxide accumulation. Several important key weakening and growth processes during early and late germination are targets for MyA. These effects are modulated by light conditions and ambient water potential. It is speculated that MyA is a soil seed bank-destroying allelochemical that secures the persistence of M. gale in its flood-prone environment.
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