Summary
Arabidopsis seeds were sown aseptically on mineral media containing between 0 and 90% of heavy water (D2O). Initially, a D2O level of over 50% was lethal for the plants. However, after culture for six successive generations on 50% D2O, plants were capable of growing marginally on media containing up to 70% D2O, but not higher. With increasing concentration, deuterium progressively delays germination, slows growth, reduces survival, results in bleaching of the leaves and delays flowering. Pollen fertility is not affected measurably but seed set is reduced with increasing levels of deuteration so that at 70% D2O few seeds were obtained. The viability of the seeds harvested from plants grown on deuterated media is low. No chlorophyll or morphological mutants were observed among a large number of plant progenies. Seeds from plants cultured on D2O media for several generations grow normally on proteated media in the very first generation.
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Bhatia, C.R., Smith, H.H. Adaptation and growth response of Arabidopsis thaliana to deuterium. Planta 80, 176–184 (1968). https://doi.org/10.1007/BF00385593
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DOI: https://doi.org/10.1007/BF00385593