Dehydration-induced physical strains of cellulose microfibrils in plant cell walls

Shixin Huang; Mohamadamin Makarem; Sarah N. Kiemle; Yunzhen Zheng; Xin He; Dan Ye; Esther W. Gomez; Enrique D. Gomez; Daniel J. Cosgrove; Seong H. Kim

doi:10.1016/j.carbpol.2018.05.091

Dehydration-induced physical strains of cellulose microfibrils in plant cell walls

Shixin Huang, Mohamadamin Makarem, Sarah N. Kiemle, Yunzhen Zheng, Xin He, Dan Ye, Esther W. Gomez, Enrique D. Gomez, Daniel J. Cosgrove, Seong H. Kim

Research output: Contribution to journal › Article

9 Scopus citations

Abstract

The effect of dehydration of plant cell walls on the physical status of cellulose microfibrils (CMFs) interspersed in pectin matrices was studied. Vibrational sum frequency generation (SFG) spectroscopy analysis of cellulose revealed reversible changes in spectral features upon dehydration and rehydration of onion epidermal walls used as a model primary cell wall (PCW). Combined with microscopic imaging and indentation modulus data, such changes could be attributed to local strains in CMFs due to the collapse of the pectin matrix upon dehydration. X-ray diffraction (XRD) showed that the (200) spacing of cellulose in dried PCWs is larger than that of cellulose Iβ obtained from tunicates. Thus, the modulus of CMFs in PCWs would be lower than those of highly-crystalline cellulose Iβ and inhomogeneous local bending or strain of CMFs could occur readily during the physical collapse of pectin matrix due to dehydration.

Original language	English (US)
Pages (from-to)	337-348
Number of pages	12
Journal	Carbohydrate Polymers
Volume	197
DOIs	https://doi.org/10.1016/j.carbpol.2018.05.091
State	Published - Oct 1 2018

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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Huang, S., Makarem, M., Kiemle, S. N., Zheng, Y., He, X., Ye, D., Gomez, E. W., Gomez, E. D., Cosgrove, D. J., & Kim, S. H. (2018). Dehydration-induced physical strains of cellulose microfibrils in plant cell walls. Carbohydrate Polymers, 197, 337-348. https://doi.org/10.1016/j.carbpol.2018.05.091

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title = "Dehydration-induced physical strains of cellulose microfibrils in plant cell walls",

abstract = "The effect of dehydration of plant cell walls on the physical status of cellulose microfibrils (CMFs) interspersed in pectin matrices was studied. Vibrational sum frequency generation (SFG) spectroscopy analysis of cellulose revealed reversible changes in spectral features upon dehydration and rehydration of onion epidermal walls used as a model primary cell wall (PCW). Combined with microscopic imaging and indentation modulus data, such changes could be attributed to local strains in CMFs due to the collapse of the pectin matrix upon dehydration. X-ray diffraction (XRD) showed that the (200) spacing of cellulose in dried PCWs is larger than that of cellulose Iβ obtained from tunicates. Thus, the modulus of CMFs in PCWs would be lower than those of highly-crystalline cellulose Iβ and inhomogeneous local bending or strain of CMFs could occur readily during the physical collapse of pectin matrix due to dehydration.",

author = "Shixin Huang and Mohamadamin Makarem and Kiemle, {Sarah N.} and Yunzhen Zheng and Xin He and Dan Ye and Gomez, {Esther W.} and Gomez, {Enrique D.} and Cosgrove, {Daniel J.} and Kim, {Seong H.}",

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AU - Huang, Shixin

AU - Makarem, Mohamadamin

AU - Kiemle, Sarah N.

AU - Zheng, Yunzhen

AU - He, Xin

AU - Ye, Dan

AU - Gomez, Esther W.

AU - Gomez, Enrique D.

AU - Cosgrove, Daniel J.

AU - Kim, Seong H.

PY - 2018/10/1

Y1 - 2018/10/1

N2 - The effect of dehydration of plant cell walls on the physical status of cellulose microfibrils (CMFs) interspersed in pectin matrices was studied. Vibrational sum frequency generation (SFG) spectroscopy analysis of cellulose revealed reversible changes in spectral features upon dehydration and rehydration of onion epidermal walls used as a model primary cell wall (PCW). Combined with microscopic imaging and indentation modulus data, such changes could be attributed to local strains in CMFs due to the collapse of the pectin matrix upon dehydration. X-ray diffraction (XRD) showed that the (200) spacing of cellulose in dried PCWs is larger than that of cellulose Iβ obtained from tunicates. Thus, the modulus of CMFs in PCWs would be lower than those of highly-crystalline cellulose Iβ and inhomogeneous local bending or strain of CMFs could occur readily during the physical collapse of pectin matrix due to dehydration.

AB - The effect of dehydration of plant cell walls on the physical status of cellulose microfibrils (CMFs) interspersed in pectin matrices was studied. Vibrational sum frequency generation (SFG) spectroscopy analysis of cellulose revealed reversible changes in spectral features upon dehydration and rehydration of onion epidermal walls used as a model primary cell wall (PCW). Combined with microscopic imaging and indentation modulus data, such changes could be attributed to local strains in CMFs due to the collapse of the pectin matrix upon dehydration. X-ray diffraction (XRD) showed that the (200) spacing of cellulose in dried PCWs is larger than that of cellulose Iβ obtained from tunicates. Thus, the modulus of CMFs in PCWs would be lower than those of highly-crystalline cellulose Iβ and inhomogeneous local bending or strain of CMFs could occur readily during the physical collapse of pectin matrix due to dehydration.

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