ArticlePlant physiology2011
High-resolution secondary ion mass spectrometry reveals the contrasting subcellular distribution of arsenic and silicon in rice roots.
Article in Plant physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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Who cites it
32 citing papers in PubMed, 140 citations in OpenAlex.
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- The application of mass spectrometry imaging in traditional Chinese medicine: a review.Chinese medicine · 2022Review
- Seasonal Zinc Storage and a Strategy for Its Use in Buds of Fruit Trees.Plant physiology · 2020Article
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- Silicification of Root Tissues.Plants (Basel, Switzerland) · 2020Review
- Penetration of foliar-applied Zn and its impact on apple plant nutrition status: in vivo evaluation by synchrotron-based X-ray fluorescence microscopy.Horticulture research · 2020Article
- Alterations in transcriptome and antioxidant activity of naturally aged mice exposed to selenium-rich rice.Environmental science and pollution research international · 2019Article
- Zinc and Cadmium Mapping in the Apical Shoot and Hypocotyl Tissues of Radish by High-Resolution Secondary Ion Mass Spectrometry (NanoSIMS) after Short-Term Exposure to Metal Contamination.International journal of environmental research and public health · 2019Article
- Detecting and Mapping Harmful Chemicals in Fruit and Vegetables Using Nanoparticle-Enhanced Laser-Induced Breakdown Spectroscopy.Scientific reports · 2019Article
- Ideal Cereals With Lower Arsenic and Cadmium by Accurately Enhancing Vacuolar Sequestration Capacity.Frontiers in genetics · 2019Review
- Engineering rice with lower grain arsenic.Plant biotechnology journal · 2018Article
- The Journey of Arsenic from Soil to Grain in Rice.Frontiers in plant science · 2017Review
- OsHAC1;1 and OsHAC1;2 Function as Arsenate Reductases and Regulate Arsenic Accumulation.Plant physiology · 2016Article
- Analysis of sublethal arsenic toxicity to Ceratophyllum demersum: subcellular distribution of arsenic and inhibition of chlorophyll biosynthesis.Journal of experimental botany · 2016Article
- Dose-dependent autophagic effect of titanium dioxide nanoparticles in human HaCaT cells at non-cytotoxic levels.Journal of nanobiotechnology · 2016Article
- Combining -Omics to Unravel the Impact of Copper Nutrition on Alfalfa (Medicago sativa) Stem Metabolism.Plant & cell physiology · 2016Article
- Advancements in the application of NanoSIMS and Raman microspectroscopy to investigate the activity of microbial cells in soils.FEMS microbiology ecology · 2015Article
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
Abstract
Rice (Oryza sativa) takes up arsenite mainly through the silicic acid transport pathway. Understanding the uptake and sequestration of arsenic (As) into the rice plant is important for developing strategies to reduce As concentration in rice grain. In this study, the cellular and subcellular distributions of As and silicon (Si) in rice roots were investigated using high-pressure freezing, high-resolution secondary ion mass spectrometry, and transmission electron microscopy. Rice plants, both the lsi2 mutant lacking the Si/arsenite efflux transporter Lsi2 and its wild-type cultivar, with or without an iron plaque, were treated with arsenate or arsenite. The formation of iron plaque on the root surface resulted in strong accumulation of As and phosphorous on the epidermis. The lsi2 mutant showed stronger As accumulation in the endodermal vacuoles, where the Lsi2 transporter is located in the plasma membranes, than the wild-type line. As also accumulated in the vacuoles of some xylem parenchyma cells and in some pericycle cells, particularly in the wild-type mature root zone. Vacuolar accumulation of As is associated with sulfur, suggesting that As may be stored as arsenite-phytochelatin complexes. Si was localized in the cell walls of the endodermal cells with little apparent effect of the Lsi2 mutation on its distribution. This study reveals the vacuolar sequestration of As in rice roots and contrasting patterns of As and Si subcellular localization, despite both being transported across the plasma membranes by the same transporters.
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