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Ha MA, Apperley DC, Evans BW, et al. Fine structure in cellulose microfibrils: NMR evidence from onion and quince. Plant J. 1998;16(2):183-90doi: 10.1046/j.1365-313x.1998.00291.x.
Ha, M. A., Apperley, D. C., Evans, B. W., Huxham, I. M., Jardine, W. G., Viëtor, R. J., Reis, D., Vian, B., & Jarvis, M. C. (1998). Fine structure in cellulose microfibrils: NMR evidence from onion and quince. The Plant journal : for cell and molecular biology, 16(2), 183-90. https://doi.org/10.1046/j.1365-313x.1998.00291.x
Ha, M A, et al. "Fine structure in cellulose microfibrils: NMR evidence from onion and quince." The Plant journal : for cell and molecular biology vol. 16,2 (1998): 183-90. doi: https://doi.org/10.1046/j.1365-313x.1998.00291.x
Ha MA, Apperley DC, Evans BW, Huxham IM, Jardine WG, Viëtor RJ, Reis D, Vian B, Jarvis MC. Fine structure in cellulose microfibrils: NMR evidence from onion and quince. Plant J. 1998 Oct;16(2):183-90. doi: 10.1046/j.1365-313x.1998.00291.x. PMID: 22507135.
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Plant J. 1998 Oct;16(2):183-90. doi: 10.1046/j.1365-313x.1998.00291.x.

Fine structure in cellulose microfibrils: NMR evidence from onion and quince.

The Plant journal : for cell and molecular biology

M A Ha, D C Apperley, B W Evans, I M Huxham, W G Jardine, R J Viëtor, D Reis, B Vian, M C Jarvis

Affiliations

  1. Chemistry Department, Glasgow University, Glasgow?G12?8QQ, UK, EPSRC Solid-state NMR Service, Durham University, Durham DH1 3LE, UK, and INRA Laboratoire de Pathologie Végétale, 16,?rue?Claude?Bernard, 75231 Paris, France.

PMID: 22507135 DOI: 10.1046/j.1365-313x.1998.00291.x

Abstract

It has been controversial for many years whether in the cellulose of higher plants, the microfibrils are aggregates of 'elementary fibrils', which have been suggested to be about 3.5 nm in diameter. Solid-state NMR spectroscopy was used to examine two celluloses whose fibril diameters had been established by electron microscopy: onion (8-10 nm, but containing 40% of xyloglucan as well as cellulose) and quince (2 nm cellulose core). Both of these forms of cellulose contained crystalline units of similar size, as estimated from the ratio of surface to interior chains, and the time required for proton magnetisation to diffuse from the surface to the interior. It is suggested that the onion microfibrils must therefore be constructed from a number of cellulose subunits 2 nm in diameter, smaller than the 'elementary fibrils' envisaged previously. The size of these subunits would permit a hexagonal arrangement resembling the cellulose synthase complex.

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