Word: nutrient
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Double Vials. One way to quiet them down is freeze-drying. A culture of bacteria is set to growing in a nutrient broth...
Sueoka grew the algae in a nutrient medium containing an isotope of nitrogen with an extra neutron in its nucleus. Since DNA contains nitrogen, newly synthesized cells become "labeled" or marked with the heavy nitrogen...
...Clark copes somewhat better with Algy, but cannot quite hit off his incorrigibly cheeky lightmindedness. As a result, they appear as a set of almost interchangeably cheerful young men. Gretchen Kanne misses the hothouse bloom of Gwendolyn, who exists in and through Society like an elegant bacterium in its nutrient broth. (In the midst of an ineffably decorous cat-fight, Gwendolyn accepts a cup of tea from her rival with the aside, "Detestable girl! But I require tea!") (italics mine...
...Attitude. When Beadle and Tatum reported their success in 1941, they had quite a collection of defective molds, each needing some extra nutrient or having some other gene-controlled chemical ailment. In a few years their imitators filled their own laboratories with molds as unnatural as the most monstrous fruit flies. The coral fluffs of normal Neurospora are rare in the test tubes and Petri dishes. In their place are blackish warts, lichenlike incrustations, or sick-looking globules. One horrible kind of mold grown in a moving liquid floats in bunches with limp limbs like soft, dead crabs...
...methods, IGY scientists are studying ocean currents, including those far below the surface. One of them flows under the Gulf Stream in the opposite direction. Even deeper, slower currents flow away from the Poles, carrying icy water along the ocean bottoms toward the equator. This water is rich in nutrient salts, so whenever it comes to the surface, as it does off Newfoundland and Peru, the sea boils with life...