ArticleThe Histochemical journal1995
Immunogold labelling indicates high catalase concentrations in amorphous and crystalline inclusions of sunflower (Helianthus annuus L.) peroxisomes.
Article in The Histochemical journal, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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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.
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Who cites it
4 citing papers in PubMed, 20 citations in OpenAlex.
- Visualisation of peroxisomes: a journey through seven decades.Histochemistry and cell biology · 2026Review
- Overexpressed Arabidopsis Annexin4 accumulates in inclusion body-like structures.Acta histochemica · 2015Article
- Functional implications of peroxisomal nitric oxide (NO) in plants.Frontiers in plant science · 2014Article
- Dynamic reorganization of metabolic enzymes into intracellular bodies.Annual review of cell and developmental biology · 2012Review
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Immunogold labelling and electron microscopy were used to investigate whether catalase was present in peroxisomal inclusions, the composition of which has not yet been determined in plant cells. In the mesophyll cells of sunflower (Helianthus annuus L.) cotyledons, the catalase gold label was confined to peroxisomes. At day 2 of postgerminative growth in darkness, peroxisomes were free of inclusions, and the matrix was homogeneously labelled with gold particles. Thereafter, amorphous inclusions appeared, but by day 5 of growth, conspicuous crystalline inclusions (cores) were the predominant type. This developmental change, first observed in cotyledons grown in continuous light between day 2.5 and 5, also took place in cotyledons kept in permanent darkness. Both amorphous and crystalline inclusions showed a much higher immunogold label than did the peroxisomal matrix, indicating that catalase was a component of both types of peroxisomal inclusions. In contrast to catalase, the immunogold label of glycolate oxidase was almost completely absent from cores and was confined to the peroxisomal matrix. Together with reports on the absence of other enzymes from peroxisomal inclusions in sunflower and other species (Vaughn, 1989) our results suggest that catalase is a major constituent of amorphous and crystalline peroxisomal inclusions in plants.
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7797423W2079747291What OpenQuestion holds
Registered trials
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