Nucleotide & ribonucleic acid metabolism of corn seedlings.

Effects of X irradiation on corn seed.

There is no biochemical explanation for the inhibition of germination and seedling growth after X irradiation of seeds (1). Although some enzyme activities are altered (9, 10, 13) by X irradiation, enzyme inactivation does not seem to be the primary biochemical mechanism of radiation injury (20). Little attention has been given to physiological and biochemical aspects of growth of seedlings fro...

Analysis of Proteins Associated with Chinch Bug (Blissus leucopterus leucopterus Say)-Infested Corn (Zea mays L.) Seedlings

A proteomics approach was used to study the proteins associated with chinch bug infested corn seedlings. Examination of two-dimensional gels revealed the presence of more than 600 high quality protein spots each from chinch bug-infested and healthy corn seedlings. A total of 31 protein spots was selected for matrix-assisted laser desorption and ionization time-of-flight mass spectrometric analy...

Some effects of 2,4-dichlorophenoxyacetic acid on soluble nucleotides & nucleic acid of soybean seedlings.

One of the most marked biochemical changes in plants knowvn to accompany 2,4-D4 treatments is the increase in nucleic acid. Rebstock et al (33) found the nucleic acid content to double in the stems of bean plants after 2,4-D treatment. Similar increases in the RNA content of 2,4-D-treated cucumber plants were reported by West et al (40); 2.4-D treatment was also shown to alter the RNA content o...

Enhanced Activity of the Soluble Ribonucleic Acid Polymerase from 2,4-Dichlorophenoxyacetic Acid-treated Maize Seedlings.

P-NMR Spectroscopy of Roots of Intact Corn Seedlings.

The application of (31)P nuclear magnetic resonance spectroscopy to the study of metabolism in roots of intact corn seedlings is described. (31)P-NMR spectra of developmentally distinct parts of primary roots of whole seedlings are presented. The spectra are of quality comparable to those of excised pieces of plant tissue.