Biochemical changes in the developing seeds of Cuscuta campestris [parasitic plant, embryo development, specific activities of enzymes]
1980
Charles, D.J. | Singh, M. | Sanwal, G.G. (Lucknow Univ. (India). Dept. of Biochemistry)
Metabolic changes in developing Cuscuta campestris Yunck seeds were studied with respect to TCA-soluble phosphate fractions, nucleic acids and the enzymes, viz. acid and alkaline phosphatase, neutral and alkaline FDPase, starch phosphorylase, alpha-amylase ribonuclease, deoxyribonuclease and phytase. RNA and DNA contents increased steadily, and then remained stationary during the last two stages. The activities of all the enzymes studied increased with development with a sharp fall in the final stage. Interestingly, alpha-amylase was present throughout the seed development. Phytic acid (16 per cent of the total P) does not seem to function as phosphate reservoir, instead orthophosphate (13 per cent of the total P) and nucleic acids (30 per cent of the total P) may serve this function.
显示更多 [+] 显示较少 [-]