The Phytochrome Involvement in the Frost Hardening Process of Rape Seedlings

Publisher Website
Google Scholar
Abstract
Light increased frost hardiness of 3-day-old winter rape seedlings (Brassica napus L. var. oleifera, cv. Góorczański) and inhibited elongation growth of the hypocotyls. Both effects were reversed either by far red light or by the application of gibberellin (GA3) following exposure of seedlings to the red light. Indolc-3-acetic acid (IAA) did not affect hardiness at all but stimulated elongation growth of the hypocotyls. Red light brought about an increase in DNA and water-soluble protein in the tissue. The mode of phytochrome action in the frost-hardening process is discussed in connection with the phytochrome-mediated growth response.

This publication has 0 references indexed in Scilit: