Fucus distichus L. Powell zygotes were used to investigate
cell wall synthesis and development and to construct a model of
cell wall structure.
Alginate synthesis was investigated. Zygotes were cultured
in seawater containing ¹⁴C-bicarbonate. Alginate represented
12%, 37%, and 1.7% of the label recovered from whole zygotes,
wall, and cytoplasm,...
Germination of immature (Stage III) and mature (Stage V) wheat (Triticum aestivum L. var. Chinese Spring and Yamhill) embryos is prevented by the inclusion of 10⁻⁴ M abscisic acid (ABA) in culture medium. In addition, Stage III embryos develop into mature embryos in culture medium containing ABA. In the absence...