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Letter: First class post

Published 13 January 2016

If they escape to the wild, will they form dyes in surface waters, disrupting the food chain?
Sandra Knuteson possible downsides of growing dyestuffs in microbes (9 January, p 18).

Issue no. 3056 published 16 January 2016

Â鶹´«Ã½ issue 3056 cover

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