Journal ArticleDOI
Study of grain cell wall structures by microscopic analysis with four different staining techniques
Emmie Dornez,Ulla Holopainen,Sven Cuyvers,Kaisa Poutanen,Jan A. Delcour,Christophe M. Courtin,Emilia Nordlund +6 more
TLDR
Four different grain cell wall staining techniques were compared and AX was mostly concentrated in nucellar epidermis and aleurone cells, whereas β-glucan was concentrated more in subaleur one cells, giving new insight into the structure of the cereal dietary fiber complex.About:
This article is published in Journal of Cereal Science.The article was published on 2011-08-12. It has received 62 citations till now. The article focuses on the topics: Aleurone & Endosperm.read more
Citations
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Journal ArticleDOI
Endosperm and aleurone cell structure in barley and wheat as studied by optical and Raman microscopy
TL;DR: In this paper, the authors used optical and Raman microscopy to localize wheat and barley grain components using selective stains and autofluorescence to image the ferulic acid and other fluorescing substances.
Journal ArticleDOI
Element distribution and iron speciation in mature wheat grains (Triticum aestivum L.) using synchrotron X-ray fluorescence microscopy mapping and X-ray absorption near-edge structure (XANES) imaging.
Niels De Brier,Sara Gomand,Erica Donner,David L. Paterson,Erik Smolders,Jan A. Delcour,Enzo Lombi +6 more
TL;DR: Speciation analysis suggests that Fe is bound to nicotianamine rather than phytate in the nucellar projection, and that more complex Fe structures may also be present, as well as revealing the complexity of the physiological processes responsible for element accumulation and bioaccessibility.
Journal ArticleDOI
Impact of hydrothermal pre-treatment to chemical composition, enzymatic digestibility and spatial distribution of cell wall polymers.
Ulla Holopainen-Mantila,Kaisa Marjamaa,Zara Merali,Andres Käsper,Peter de Bot,Anna Stiina Jääskeläinen,Keith W. Waldron,Kristiina Kruus,Tarja Tamminen +8 more
TL;DR: The sample with the highest digestibility was observed to have intensified cellulose staining, possibly reflecting the increased accessibility of cellulose, and the highest yields were obtained from the samples with a low xylan and diferulate content.
Journal ArticleDOI
Quantitative structural organisation model for wheat endosperm cell walls: Cellulose as an important constituent.
Ghanendra Gartaula,Sushil Dhital,Gabriele Netzel,Bernadine M. Flanagan,Gleb E. Yakubov,Cherie T. Beahan,Helen Collins,Rachel A. Burton,Antony Bacic,Michael J. Gidley +9 more
TL;DR: A model for endosperm cell wall structural organisation is proposed, based on a core of cellulose and interacting non-cellulosic polysaccharides which anchors AX that in turn retains MLGs through physical entanglement.
Journal ArticleDOI
Iron and zinc complexation in wild-type and ferritin-expressing wheat grain: implications for mineral transport into developing grain
Andrew L. Neal,Kalotina Geraki,Søren Borg,Paul D. Quinn,J. Fred W. Mosselmans,Henrik Brinch-Pedersen,Peter R. Shewry +6 more
TL;DR: Derivative X-ray absorption spectra suggest that mineral complexation in the transfer region of ferritin-expressing grains is quite different from that in wild-type grain, which may explain why the raised levels of minerals transported to the developing grain accumulate within the crease region of the transgenic grain.
References
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Journal ArticleDOI
Testa development in the caryopsis of Sorghum bicolor (L.) Moench
TL;DR: The development of the testa in type II and type III sorghums was documented with light, fluorescence and scanning electron microscopy and the method of pigment deposition may reflect the difficulty in extraction of procyanidins (tannins) for nutraceutical use.
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Structural Changes in Insoluble Cell Walls in Wholemeal Rye Doughs
TL;DR: In this paper, structural changes in insoluble cell walls, and rheological changes occurring during incubation of unyeasted wholemeal rye doughs were studied by fluorescence microscopy, image analysis and dynamic visco-elastic measurements.