This is a preview. Log in through your library . Abstract Isolated cells from leaves of Spinacia oleracea have been maintained in a state capable of high rates of photosynthetic CO2 fixation for more ...

Plant Physiology, Vol. 49, No. 4 (Apr., 1972), pp. 596-601 (6 pages) During the transition of tobacco (Nicotiana tabacum) pith tissue to callus tissue, there were changes in the composition of the ...

IN an earlier report from these laboratories 1 we demonstrated significant diurnal changes in protein, nucleic and seven free amino-acids of liver during the active involvement stage of a mild ...

MIT scientists have found that an amino acid called cysteine can help the gut heal itself. In mouse studies, a cysteine-rich ...

Plants produce all the amino acids essential for human life. This commonly occurs in specialized cell organelles, so-called plastids. A research team headed by Heinrich Heine University Düsseldorf ...

Selenocysteine is an essential amino acid for certain species, such as humans and the other vertebrates, although it has disappeared from others, such as insects. Researchers have discovered that it ...