Tomato metabolism

DHARMAPURI S, ROSATI C, PALLARA P, AQUILANI R, BOUVIER F, CAMARA B and GIULIANO G (2002) Metabolic engineering of xanthophyll content in tomato fruits , FEBSLett, 519, 30-34. 

Rosati, C. et al.. Metabolic engineering of beta-carotene and lycopene content in tomato fruit. Plant J. 24, 413, 2000. 

The hSubunit of Tomato Fruit Polygalacturonase Isoenzyme 1 Defines a New Class of Plant Cell Proteins Involved in Pectin Metabolism AroGPs (Aromatic Amino Acid Rich Glyco Proteins)... 

Diffusion-mediated release of root exudates is likely to be affected by root zone temperature due to temperature-dependent changes in the speed of diffusion processes and modifications of membrane permeability (259,260). This might explain the stimulation of root exudation in tomato and clover at high temperatures, reported by Rovira (261), and also the increase in exudation of. sugars and amino acids in maize, cucumber, and strawberry exposed to low-temperature treatments (5-10°C), which was mainly attributed to a disturbance in membrane permeability (259,262). A decrease of exudation rates at low temperatures may be predicted for exudation processes that depend on metabolic energy. This assumption is supported by the continuous decrease of phytosiderophore release in Fe-deficient barley by decreasing the temperature from 30 to 5°C (67). 

Khachik, F., L. Carvalho, P. S. Bernstein et al. 2002. Chemistry, distribution, and metabolism of tomato carotenoids and their impact on human health. Exp Biol Med (Maywood) 227(10) 845-851. 

Kovacs, K., Zhang, L., Linforth, R.S.T. et al. (2007) Redirection of carotenoid metabolism for the efficient production of taxadiene [taxa-4(5),ll(12)-diene] in transgenic tomato fruit. Transgenic Research, 16,121-126. 

Fraser PD, Enfissi EMA, Halket JM, Truesdale MR, Yu D, Gerrish C, Bramley PM. 2007. Manipulation of phytoene levels in tomato fruit effects on isoprenoids, plastids, and intermediary metabolism. Plant Cell 19 3194-3211. 

Schauer N, Semel Y, Roessner U, Gur A, Balbo I, Carrari F, Pleban T, Perez-Melis A, Bruedigam C, Kopka J, Willmitzer L, Zamir D and Fernie AR. 2006. Comprehensive metabolic profiling and phenotyping of interspecific introgression lines for tomato improvement. Nat Biotechnol 24 447 154. 

Bobek P, Ozdin L and Hromadova M. 1998. The effect of dried tomato, grape and apple pomace on the cholesterol metabolism and antioxidative enzymatic system in rats with hypercholesterolemia. Nahrung 42(5) 317— 320. 

Yanuriati A, Savage GP and Rowe RN. 1999. The effects of ethanol treatment on the metabolism, shelf life and quality of stored tomatoes at different maturities and temperatures. J Sci Food Agric 79(7) 995-1002. 

Fig. 9 In vitro metabolism of pyrethroid metabolites in leaf cell suspension of cabbage (C) and tomato (T). The values in parentheses are percent of the total radioactive residues in leaf cell extract/medium after 1-day incubation, nd not detected...

Cyclopamine also interferes with cholesterol metabolism that results in decreased cholesterol synthesis and the accumulation of late biosynthetic intermediates. Cyclopamine was evaluated as an inhibitor of multi-drug resistance in tumor cells. Intrinsic or acquired resistance of tumor cells to cytotoxic drugs is a major cause of failure of chemotherapy. Both cyclopamine and the spirosolane alkaloid tomatidine from tomatoes act as potent and elfective chemosensitizers in multidrug-resistant cells (Lavie et ah, 2001). Therefore, plant steroidal alkaloids, such as cyclopamine and tomatidine, or their analogs, may serve as chemosensitizers in combination with chemotherapy and conventional cytotoxic drugs for treating multidrug-resistant cancers. 

Hodgson, R. H., K. E. Dusbabek, and B. L. Hoffer. Diphenamid metabolism in tomato Time course of an ozone fumigation effect. Weed Sci. 22 20S-210. 1974. 

Plant. Rapidly metabolized in tomatoes and several fruit trees forming the water-soluble hexose conjugates of 4-hydroxynapropamide (Ashton and Monaco, 1991 Humburg et al, 1989). 

Pogany, E., Wallnofer, P.R., Ziegler, W., and Mricke, W. Metabolism of o-nitroaniline and di-/ -butyl phthalate in cell suspension cultures of tomatoes, Chemosphere, 21(4/5) 557-562,1990. 

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