Abstract
MR. I. M. SUSSEX1 propounds a problem of great importance and interest, but the main conclusion which he draws from his skilful experiments appears open to question. He has found that in shoots of potato lateral portions of the apical meristem which are separated by longitudinal cuts from the main part are often prevented from regenerating by the growing-point of that meristem, or if they do regenerate are soon inhibited by it in their growth. He concludes that since the inhibiting influence has travelled down to a level below the cut and up again to the separated piece of meristem, it must be based not on a transport of hormones but on a competition for nutriment. He supports this conclusion by mentioning some unpublished experiments which, he states, have shown that there is in these apices a transmission of some other kind of hormone-like stimulus which, after travelling in the morphologically downward direction, cannot travel up again.
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SNOW, R., SNOW, M. Regeneration of the Potato Shoot Apex. Nature 171, 224 (1953). https://doi.org/10.1038/171224a0
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DOI: https://doi.org/10.1038/171224a0
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