ArticlePlant physiology2009
In vivo cell wall loosening by hydroxyl radicals during cress seed germination and elongation growth.
Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 137 papers.
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Who cites it
137 citing papers in PubMed, 382 citations in OpenAlex.
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- Proline and ROS: A Unified Mechanism in Plant Development and Stress Response?Plants (Basel, Switzerland) · 2024Review
- Anatomical limitations in adventitious root formation revealed by magnetic resonance imaging, infrared spectroscopy, and histology of rose genotypes with contrasting rooting phenotypes.Journal of experimental botany · 2024Article
- Beneficial effects of bio-fabricated selenium nanoparticles as seed nanopriming agent on seed germination in rice (Oryza sativa L.).Scientific reports · 2023Article
- Combined transcriptome and proteome analysis reveal the key physiological processes in seed germination stimulated by decreased salinity in the seagrass Zostera marina L.BMC plant biology · 2023Article
- Effect Analysis of Hydrogen Peroxide Using Hyperspectral Reflectance in Sorghum [Plants (Basel, Switzerland) · 2023Article
- Arsenic Contents, Speciation and Toxicity in Germinated Rice Alleviated by Selenium.Foods (Basel, Switzerland) · 2023Article
- Multi-copper oxidases SKU5 and SKS1 coordinate cell wall formation using apoplastic redox-based reactions in roots.Plant physiology · 2023Article
- Anthocyanins and reactive oxygen species: a team of rivals regulating plant development?Plant molecular biology · 2023Review
- How Extracellular Reactive Oxygen Species Reach Their Intracellular Targets in Plants.Molecules and cells · 2023Review
77 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
Abstract
Loosening of cell walls is an important developmental process in key stages of the plant life cycle, including seed germination, elongation growth, and fruit ripening. Here, we report direct in vivo evidence for hydroxyl radical ((*)OH)-mediated cell wall loosening during plant seed germination and seedling growth. We used electron paramagnetic resonance spectroscopy to show that (*)OH is generated in the cell wall during radicle elongation and weakening of the endosperm of cress (Lepidium sativum; Brassicaceae) seeds. Endosperm weakening precedes radicle emergence, as demonstrated by direct biomechanical measurements. By (3)H fingerprinting, we showed that wall polysaccharides are oxidized in vivo by the developmentally regulated action of apoplastic (*)OH in radicles and endosperm caps: the production and action of (*)OH increased during endosperm weakening and radicle elongation and were inhibited by the germination-inhibiting hormone abscisic acid. Both effects were reversed by gibberellin. Distinct and tissue-specific target sites of (*)OH attack on polysaccharides were evident. In vivo (*)OH attack on cell wall polysaccharides were evident not only in germinating seeds but also in elongating maize (Zea mays; Poaceae) seedling coleoptiles. We conclude that plant cell wall loosening by (*)OH is a controlled action of this type of reactive oxygen species.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.