Evidence map›Paper›PMID 18008093›Full record

ArticleJournal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry2008

Microchemical imaging of iodine distribution in the brown alga Laminaria digitata suggests a new mechanism for its accumulation.

Elodie Françoise Verhaeghe, Aurélien Fraysse, Jean-Luc Guerquin-Kern, Ting-Di Wu, Guillaume Devès, Charles Mioskowski, Catherine Leblanc, Richard Ortega, Yves Ambroise, Philippe Potin

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Article in Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
5.0field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 103 citations in OpenAlex.

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  7. CAZymes inFrontiers in microbiology · 2021
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  9. Emission of volatile halogenated compounds, speciation and localization of bromine and iodine in the brown algal genome model Ectocarpus siliculosus.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2018
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 6 institutions in 1 country.

Elodie Françoise VerhaegheService de Chimie Bioorganique et de Marquage, CEA Saclay, Bât. 547, 91191, Gif-sur-Yvette Cedex, France. elodie.verhaeghe@cea.fr
Aurélien Fraysse
Jean-Luc Guerquin-Kern
Ting-Di Wu
Guillaume Devès
Charles Mioskowski
Catherine Leblanc
Richard Ortega
Yves Ambroise
Philippe Potin
CEA Paris-Saclay · FRInstitut Curie · FRLaboratoire de Physique des deux infinis Bordeaux · FRSorbonne Université · FRCentre National de la Recherche Scientifique · FRInstitut de Biologie et Technologies · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Brown algal kelp species are the most efficient iodine accumulators among all living systems, with an average content of 1.0% of dry weight in Laminaria digitata. The iodine distributions in stipe and blade sections from L. digitata were investigated at tissue and subcellular levels. The quantitative tissue mapping of iodine and other trace elements (Cl, K, Ca, Fe, Zn, As and Br) was provided by the proton microprobe with spatial resolutions down to 2 mum. Chemical imaging at a subcellular resolution (below 100 nm) was performed using the secondary ion mass spectrometry microprobe. Sets of samples were prepared by both chemical fixation and cryofixation procedures. The latter prevented the diffusion and the leaching of labile inorganic iodine species, which were estimated at around 95% of the total content by neutron activation analysis. The distribution of iodine clearly shows a huge, decreasing gradient from the meristoderm to the medulla. The contents of iodine reach very high levels in the more external cell layers, up to 191 +/- 5 mg g(-1) of dry weight in stipe sections. The peripheral tissue is consequently the main storage compartment of iodine. At the subcellular level, iodine is mainly stored in the apoplasm and not in an intracellular compartment as previously proposed. This unexpected distribution may provide an abundant and accessible source of labile iodine species which can be easily remobilized for potential chemical defense and antioxidative activities. According to these imaging data, we proposed new hypotheses for the mechanism of iodine storage in L. digitata tissues.

Indexed as

BromineCryopreservationIodineLaminariaNeutron Activation AnalysisProtonsSensitivity and SpecificitySpectrometry, Mass, Secondary IonTissue FixationBromineIodineProtons

Identifiers

PMID18008093
OpenAlexW1988973710

What OpenQuestion holds

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Registered trials

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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.