Suntory researchers are attempting to develop a deep blue rose, according to The Japan Times.
Suntory developed a light blue rose in 2004, using genetic engineering technology. One of the current team's researchers, Naoko Okitsu, says she extracts tissue samples from a rose's petals and stem and mixes them with blue pigment from another flower.
She has run almost 1,000 experiements thus far, none have been successful.
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