Bioinformatics

Ryden P. Ambient temperature regulation in Arabidopsis thaliana. MSc University of East Anglia 2008

Arabidopsis mechanics and analysis

Li Y., Smith C., Corke F., Zheng L., Merali Z., Ryden P., Derbyshire P., Waldron K., Bevan M. W. Signaling from an altered Cell Wall to the nucleus mediates sugar-responsive growth and development in Arabidopsis thaliana. Plant Cell 19:2500-15 2007

Bosca S., Barton C. J., Taylor N. G., Ryden P., Neumetzler L., Pauly M., Roberts K., Seifert G. J. Interactions between MUR10/CesA7-dependent secondary cellulose biosynthesis and primary cell wall structure. Plant Physiol. 142:1353-63 2006

Ryden P., Sugimoto-Shirasu K., Smith A. C., Findlay K., Reiter W. D. & McCann M. C. Tensile properties of Arabidopsis cell walls depend on both a xyloglucan cross-linked microfibrillar network and rhamnogalacturonan  II-borate complexes. Plant Physiology 132, 1033-1040 2003

Peña M. J., Ryden P., Madson M., Smith A. C. & Carpita N. The galactose residues of xyloglucan are essential to maintain mechanical strength of the primary walls in Arabidopsis during growth. Plant Physiology 134, 443-451 2004

Hydration of cell walls and  polysaccharides

Ryden P., MacDougall A. J., Tibbits C. W. & Ring S. G. Hydration of pectic polysaccharides. Biopolymers 54, 398-405 2000

MacDougall A. J., Rigby N., Ring S. G., Ryden P. & Tibbits C. W. Swelling behaviour of the tomato cell wall network Biomacromolecules 2, 450-455 2001                         

Tang H., Belton P. S., Ng A. & Ryden P. 13C MAS NMR studies of the effects of hydration on the cell walls of potatoes and chinese water chestnuts. Journal of Agricultural and Food Chemistry 47, 510-517 1999                              

Tang H. R., Belton P. S., Ng A. , Waldron K. W. & Ryden P. Solid state 1H NMR studies of cell wall materials of potatoes. Spectrochimica Acta A 55, 883-894 1999

Binding properties of dietary fibre

Ryden P. & Robertson J. A. The effect of fibre source and fermentation on the apparent hydrophobic binding properties of wheat bran preparations for the mutagen 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx) Carcinogenesis 16, 209-216 1995

Ryden P. & Robertson J. A. The consequences of fruit and vegetable fibre fermentation on their binding capacity for MeIQx and the effects of soluble fibre sources on the binding affinity of wheat bran preparations Carcinogenesis 16, 1711-1716 1995  

Ryden P. The effects of fermentation on the binding properties of dietary fibre for the hydrophobic mutagen (MeIQx) 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline PhD University of East Anglia 1995

Ryden P. & Robertson J. A. Effects of pH and bile salts on the binding of MeIQx to wheat bran fibre. Mutation Research 351, 45-52 1996

Ryden P. & Robertson J. A. Characterisation of the binding capacities and affinities of wheat bran, fruit and vegetable fibres for MeIQx, before and after fermentation. Cancer Letters 114, 47-49 1997      

Ryden P. & Selvendran RR Phytic acid: properties and determination. in Encyclopedia of Food Science, Food Technology and Nutrition.ISBN 0-12-2268750-4 1993

Cell wall structures

Gooneratne J, Needs, P. W., Ryden P., Selvendran R. R., Structural features of cell-wall polysaccharides from the cotyledons of mung bean Vigna radiata. Carbohydrate Research 265, 61-77 1994

Ryden P. & Selvendran RR. Cell-wall polysaccharides and glycoproteins of parenchymatous tissues of runner bean (Phaseolus coccineus) Biochem J. 269, 393-402 1990

Ryden P. & Selvendran R. R. Structural features of Cell-wall polysaccharides of potato (Solanum tuberosum) Carbohydrate Research 195, 257-272 1990.

Ryden P. & Selvendran R. R. Isolation and Analysis of Plant Cell Walls. In Methods in Plant Biochemistry Vol 2 pp. 549-579 1990.

Ryden P, Colquhoun I. J, Selvendran R. R. Investigation of structural features of the pectic polysaccharides of onion by 13C-n.m.r. spectroscopy. Carbohydrate Research 185, 233-237. 1989

Fermentation of polysaccharides

Robertson J. A., Ryden P., Botham R. L, Reading S., Gibson G. & Ring S. G. Structural properties of diet-related polysaccharides and their influence on butyrate production during fermentation Lebensm-Wiss Technol 34, 567-573 2001

Robertson J. A., Ryden P. & Ring S. G. Unavailable carbohydrates: behaviour during digestion and consequences for fermentation.  Recent Advances in Agriculture and Food Chemistry 1, 59-71 2000                             

Robertson J. A., Ryden P., Botham L. & Ring S. G. Ileal effluent as a fermentation substrate: implications for butyrate production in the colon. Journal of Environmental Pathology, Toxicology and Oncology 18(2), 141-146 1999

Kroon P. A., Faulds C. B., Ryden P. , Robertson J. A. & Williamson G. Release of covalently bound ferulic acid from fiber in the human colon. Journal of Agricultural and Food Chemistry 45, 661-667 1997

CONFERENCES   Lecture and posters

Ryden P. & Selvendran R. R. (1989) Structural features of potato cell walls. 5th Cell Wall Meeting Edinburgh. (lecture).

Gooneratne M. J., Ryden P., Selvendran R. R. (1992) Isolation and analysis of cell wall polysaccharides of mung bean cotyledons (Vigna radiata). 6th Cell wall Meeting Nijmegen. (poster)

Ryden P. Bacterial degradation of dietary fibre in vitro from fresh and cooked plant foods. (1993) The Rank Prize Funds Mini-Symposium on the Plant Cell Wall and Nutrition 18th – 21st October. The Wordsworth Hotel Grasmere, Cumbria. (lecture)

Ryden P. Robertson J. A. (1995) Fermentation of cell wall materials and the consequences for binding harmful dietary compounds. 7th Cell wall Meeting Santiago de Compostela, Spain. (poster)

Ryden P. & Robertson J. A. (1996) Fermentability of defined fibres and the effect of fermentation on their binding properties for MeIQx.Proceedings of the EU Concerted Action (PROFIBRE) Symposium, Nantes, France, 15-17 July. Plant Polysaccharides in human nutrition: Structure, Function, Digestive fate and Metabolic Effects (lecture)

Ryden P. & Robertson J. A. (1996) Significance of hydrophobic binding to dietary fibre residues in cancer prevention. International Symposium on "Basic Studies Aimed at Cancer Prevention", Tokushima, Japan, 2-7 December (lecture)

Ryden P. & Robertson J. A. (1996) Determination of hydrophobic binding properties of MeIQx to dietary fibre and fermented fibre substrates 5th International Conference on Mechanisms of Antimutagenesis and Carcinogenesis, Okayama, Japan, 2-6 December (lecture).

Ryden P., Botham R. L., Robertson J. A. & Ring S. G. (1998) In vitro fermentatation of resistant starches and non-starch polysaccharides as food isolates and as ileal effluents. EU Profibre Conference, Lisbon, Portugal, 3-5 March 1998 Profibre - Functional Properties of Non-Digestible Carbohydrates 161-164 (lecture)

Ryden P., Smith A. C., Sugimoto K. & McCann M. C. (2001) The mechanical phenotype of the hypocotyls of cell wall mutants of Arabidopsis 9th International Cell Wall Meeting, Toulouse, France (lecture)