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Unravelling cell wall formation in the woody dicot stem

(2001) PLANT MOLECULAR BIOLOGY. 47(1-2). p.239-274
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Abstract
Populus is presented as a model system for the study of wood formation (xylogenesis). The formation of wood (secondary xylem) is an ordered developmental process involving cell division, cell expansion, secondary wall deposition, lignification and programmed cell death. Because wood is formed in a variable environment and subject to developmental control, xylem cells are produced that differ in size, shape, cell wall structure, texture and composition. Hormones mediate some of the variability observed and control the process of xylogenesis. High-resolution analysis of auxin distribution across cambial region tissues, combined with the analysis of transgenic plants with modified auxin distribution, suggests that auxin provides positional information for the exit of cells from the meristem and probably also for the duration of cell expansion. Poplar sequencing projects have provided access to genes involved in cell wall formation. Genes involved in the biosynthesis of the carbohydrate skeleton of the cell wall are briefly reviewed. Most progress has been made in characterizing pectin methyl esterases that modify pectins in the cambial region. Specific expression patterns have also been found for expansins, xyloglucan endotransglycosylases and cellulose synthases, pointing to their role in wood cell wall formation and modification. Finally, by studying transgenic plants modified in various steps of the monolignol biosynthetic pathway and by localizing the expression of various enzymes, new insight into the lignin biosynthesis in planta has been gained.
Keywords
CYTOCHROME P450-DEPENDENT MONOOXYGENASE, TRACHEARY ELEMENT DIFFERENTIATION, ALTERED LIGNIN COMPOSITION, ISOLATED MESOPHYLL-CELLS, ASPEN POPULUS-TREMULOIDES, O-METHYLTRANSFERASE ACTIVITY, CAFFEOYL-COENZYME-A, PHENYLALANINE AMMONIA-LYASE, TRANSGENIC TOBACCO PLANTS, CINNAMYL ALCOHOL-DEHYDROGENASE, xylem cell wall, wood formation, vascular cambium, Populus, expressed sequence tag, hybrid aspen

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Citation

Please use this url to cite or link to this publication:

Chicago
Mellerowicz, Ewa J, Marie Baucher, Björn Sundberg, and Wout Boerjan. 2001. “Unravelling Cell Wall Formation in the Woody Dicot Stem.” Plant Molecular Biology 47 (1-2): 239–274.
APA
Mellerowicz, E. J., Baucher, M., Sundberg, B., & Boerjan, W. (2001). Unravelling cell wall formation in the woody dicot stem. PLANT MOLECULAR BIOLOGY, 47(1-2), 239–274.
Vancouver
1.
Mellerowicz EJ, Baucher M, Sundberg B, Boerjan W. Unravelling cell wall formation in the woody dicot stem. PLANT MOLECULAR BIOLOGY. 2001;47(1-2):239–74.
MLA
Mellerowicz, Ewa J, Marie Baucher, Björn Sundberg, et al. “Unravelling Cell Wall Formation in the Woody Dicot Stem.” PLANT MOLECULAR BIOLOGY 47.1-2 (2001): 239–274. Print.
@article{138717,
  abstract     = {Populus is presented as a model system for the study of wood formation (xylogenesis). The formation of wood (secondary xylem) is an ordered developmental process involving cell division, cell expansion, secondary wall deposition, lignification and programmed cell death. Because wood is formed in a variable environment and subject to developmental control, xylem cells are produced that differ in size, shape, cell wall structure, texture and composition. Hormones mediate some of the variability observed and control the process of xylogenesis. High-resolution analysis of auxin distribution across cambial region tissues, combined with the analysis of transgenic plants with modified auxin distribution, suggests that auxin provides positional information for the exit of cells from the meristem and probably also for the duration of cell expansion. Poplar sequencing projects have provided access to genes involved in cell wall formation. Genes involved in the biosynthesis of the carbohydrate skeleton of the cell wall are briefly reviewed. Most progress has been made in characterizing pectin methyl esterases that modify pectins in the cambial region. Specific expression patterns have also been found for expansins, xyloglucan endotransglycosylases and cellulose synthases, pointing to their role in wood cell wall formation and modification. Finally, by studying transgenic plants modified in various steps of the monolignol biosynthetic pathway and by localizing the expression of various enzymes, new insight into the lignin biosynthesis in planta has been gained.},
  author       = {Mellerowicz, Ewa J and Baucher, Marie and Sundberg, Bj{\"o}rn and Boerjan, Wout},
  issn         = {0167-4412},
  journal      = {PLANT MOLECULAR BIOLOGY},
  keyword      = {CYTOCHROME P450-DEPENDENT MONOOXYGENASE,TRACHEARY ELEMENT DIFFERENTIATION,ALTERED LIGNIN COMPOSITION,ISOLATED MESOPHYLL-CELLS,ASPEN POPULUS-TREMULOIDES,O-METHYLTRANSFERASE ACTIVITY,CAFFEOYL-COENZYME-A,PHENYLALANINE AMMONIA-LYASE,TRANSGENIC TOBACCO PLANTS,CINNAMYL ALCOHOL-DEHYDROGENASE,xylem cell wall,wood formation,vascular cambium,Populus,expressed sequence tag,hybrid aspen},
  language     = {eng},
  number       = {1-2},
  pages        = {239--274},
  title        = {Unravelling cell wall formation in the woody dicot stem},
  url          = {http://dx.doi.org/10.1023/A:1010699919325},
  volume       = {47},
  year         = {2001},
}

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