Abstract
Immature detached barley spikelets were cultured in wheat spikelet medium. Fertility of cultured barley spikelets was similar to that of cultured wheat spikelets. Barley anther development within cultured spikelets was retarded relative to in planta, but viability of developing pollen, as determined by a fluorochromatic reaction, was similar in vitro and in planta. Protein synthesis by anthers in developing barley spikelets in vitro was maximal during stage 2, when pollen grains were bicellular, and declined as pollen matured. Barley spikelet culture is an effective tool for the analysis of biochemical events in flower development.
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