Solanum tuberosum isolation

FisHwicK M J and wright a j (1980) Isolation and characterisation of amyloplast envelope membranes from Solanum tuberosum. Phytochemistry, 19, 55-9. 

Rosahl S, Schmidt R, Schell J, Willmitzer L (1986) Isolation and characterization of a gene from Solanum tuberosum encoding patatin, the major storage protein in potato tubers. Mol Gen Genet 203 214-220... 

Andersen, 0.M., Opheim, S., Aksnes, D.W., and Frpystein, N.A. 1991b. Structure of petanin, an acylated anthocyanin isolated from Solanum tuberosum, using homo- and hetero-nuclear two-dimensional nuclear magnetic resonance techniques. Phytochem. Anal. 2 230-236. 

Various non-legume, non-Poaceae Bowman-Birk protease inhibitors have been isolated that have sequence homology to the other BBPIPs [137-140, 285-288] (Table 10). The Ananas BBPIPs are disulphide-linked heterodimers [137-140]. The Helianthus BBPIP SFTI-1 is a small cyclic peptide (cyclotide) [285, 286] whereas the Solanum tuberosum BBPIP is similar to the single-headed Poaceae BBPIPs [287, 288]. 

Trindade, L.M., Horvath, B., Bachem, C., Jacobsen, E., and Visser, R.G.F., Isolation and functional characterization of a stolon specific promoter from potato (Solanum tuberosum L.), Gene, 303, 77-87, 2003. 

Although seeds are the common source of lectin activity, there are reports (some contradictory) of agglutinins occurring in leaves, stems, and roots.77,94 For example, black-locust (Robinia pseudoaccacia) lectin160 was isolated from its bark, potato (Solanum tuberosum) lectin161 from its tubers, and poke-weed (Phytolacca americanum) mitogen162 from its roots. A new class of plant cell-wall and membrane-bound lectins ( /3-lectins ) has been described.116,163,164 A treatise collected several schemes for the purification of lectins.165,1658... 

Feng, J., Yuan, F., Gao, Y, Liang, C., Xu, )., Zhang, C., He, L. A novel antimicrobial protein isolated from potato [Solanum tuberosum) shares homology with an acid phosphatase. Biochem. J. 2003, 376, 481-487... 

Tuberonic acid (5) was isolated as a lactone from J. grandiflorum L. [19], An acetyl tuberonic acid amide with phenylalanine was isolated from Praxelis dematidea [20] and the glucoside was isolated from Solanum tuberosum L. as a potato tuber-inducing substance [21,22], The methylester of the glucoside was isolated from Helianthus... 

Chocarom Pyrazine isomers were isolated from the skin and flesh of potato Solanum tuberosum L.) cultivars after baking 4). 3,5-Dimethyl-2-isobutylpyrazine [2,5-dimethyl-3-(2-methylpropyl)-pyrazine] was isolated by Oruna-Concha, Craig, Duckham and Ames from the following potato cultivars - Cara, Nadine, Flanna and Marfona. 3,6-Dimethyl-2-isobutyl-pyrazine [3,5-dimethyl-2-(2-methylpropyl)pyrazine], was found by the same team in Cara and Marfona potato cultivars. 2,5-Dimethyl-3-isobutylpyrazine was also detected by Welty, Marshall and Grun in chocolate ice cream prepared from cocoa flavor (5). Both pyrazines were also found as key odorant compounds in dark chocolate by Counet, Callemien, Ouwerx and Collin (6). The role of amino acids in alkyl-substituted pyrazines formation in model systems containing pyruvaldehyde was examined by Mea (7). 2,5-Dimethyl-3-isobutylpyrazine was formed in the model system with valine. Both isomers were prepared synthetically by Chen (S) by reacting acetol, isobutyraldehyde and ammonium acetate, with low yield of 22.3%. Subsequent proprietary work by the author has improved the yield to 65%. 

Hyoscyamine and its racemic form atropine (extracted from Hyoscyamus niger, Atropa belladonna, and Mandragora officinarum), scopolamine (a co-product of hyoscyamine in Datura plants), cocaine (isolated from Erytroxylon coca), and calystegine (isolated from Solanum tuberosum) are tropane alkaloids that have widespread pharmacological use [38, 39], Atropine, hyoscyamine, and scopolamine... 

Visser, j. H., S. van Straten, and H. Maarse, Isolation and identification of volatiles in the foliage of potato, Solanum tuberosum, a host plant of the Colorado beetle, Leptinotarsa decemlineata, J. Chem. Ecol., 5, 13-25 (1979). 

A series of polyhydroxylated tropane alkaloids have been isolated from the leaves of Solanum tuberosum and from both a sphingid moth and an ithomiine butterfly, the larvae of which feed on Solanum species (Nash et al., 1993). These alkaloids are potent glycosidase inhibitors, in a manner similar to certain hydrox3q)yrrolidine and indolizidine alkaloids see Chapter 30). 

Long chain alkyl esters of ferulic acid are common constituents in the family. From the seeds of Hyoscyamus niger even a diester, 1,24-tetracosanediol diferulate could be isolated (Ma et al. 2002). Solanum tuberosum started to accumulate long chain alkyl (mono)esters three to seven days after wound treatment. The alcohol components ranged from hexadecyl (Cj Hjj) to octacosyl (C gHj,) all even numbers plus two esters of odd chain length alkanols [nonadecyl (Cj Hj ), heneicosyl (C jH j)]. The major metabolites were represented by hexadecyl and octadecyl ferulates. The authors suppose that the formation of all these ferulates is temporally and spatially correlated with suberin formation since they were restricted to the wound periderm (Bernards and Lewis 1992). For a coherent account of suberin chemistry interested readers are directed to a review on the macromolecular aromatic domain in suberized tissues (Bernards and Lewis 1998). 

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