Influence of boron on carrot cell wall structure and its resistance to fracture

Singh, Davinder Pal, Liu, Li Hui, Oiseth, Sofia Kihlman, Beloy, Joel, Lundin, Leif, Gidley, Michael J. and Day, Li (2010) Influence of boron on carrot cell wall structure and its resistance to fracture. Journal of Agricultural and Food Chemistry, 58 16: 9181-9189. doi:10.1021/jf100688t

Author Singh, Davinder Pal
Liu, Li Hui
Oiseth, Sofia Kihlman
Beloy, Joel
Lundin, Leif
Gidley, Michael J.
Day, Li
Title Influence of boron on carrot cell wall structure and its resistance to fracture
Journal name Journal of Agricultural and Food Chemistry   Check publisher's open access policy
ISSN 0021-8561
Publication date 2010-08-25
Sub-type Article (original research)
DOI 10.1021/jf100688t
Volume 58
Issue 16
Start page 9181
End page 9189
Total pages 9
Place of publication Washigton, DC, United States
Publisher American Chemical Society
Collection year 2011
Language eng
Formatted abstract
Plant cell wall structure integrity and associated tissue mechanical properties is one of key determinants for the perceived texture of plant-based foods. Carrots (Daucus carota) were used to investigate the effect of mineral supply of boron (B) and/or calcium (Ca), during plant growth, on the plant cell wall structure and mechanical properties of matured root tissues. Five commercial cultivars of carrots, Kuroda (orange), Dragon Purple, Kuttiger White, Yellow, and Nutri-Red, were cultivated under controlled glasshouse conditions over two seasons. Significant increases in the accumulation of B and Ca were found for all cultivars of carrots when additional B and Ca were included in the nutrient feeding solutions throughout the plant growth period. Elevated levels of B in carrot root tissue reduced the uptake of Ca and other mineral nutrients and enhanced plant cell wall structural integrity, its resistance to fracture, and the weight and size (both diameter and length) of carrots. Although higher amounts of Ca were accumulated in the plant materials, the additional supply of Ca did not have a significant effect on the mechanical properties of mature plant tissues or on the uptake of B by the plant. The results suggest that B cross-linking of pectin (rhamnogalacturonan II) has a greater influence on mature tissue mechanical properties than Ca cross-linking of pectin (homogalacturonan) when supplied during plant growth.  © 2010 American Chemical Society.
Keyword Soil nutrients
Cell wall structure
Mechanical properties
Cell fracture
Carrot (Daucus carota)
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
Centre for Nutrition and Food Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
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Created: Sun, 29 Aug 2010, 00:04:23 EST