Influence de la carence hydrique sur la repartition cellulaire de l'acide ribonucleique foliaire chez le cotonnier |
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| Authors: | BERNARD MARIN JORGE VIEIRA DA SILVA |
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| Institution: | Orstom, Laboratoire de Physiologie Végétale, Boite Postale 20, Abidjan, C⊚-d'Ivoire;Universitéde Paris VII, UER de Biologie, 2 Place Jussieu, Paris 5e, France |
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| Abstract: | Water stress, induced by addition of polyethyleneglycol 600 to the nutrient solution, reduces the ribonucleic acid content of cotton leaves. The chloroplastic compartment, especially its ribosomal fraction, was most affected, even losing ribonucleic acid to the cytoplasmic compartment. Decrease of ribonucleic acid content on dehydration of leaf tissue is linked with an increase of ribonuclease. |
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