Abstract
The effects of partial flooding on the partial pressure of oxygen and carbon dioxide in water around the roots, ethylene production by intact maize (Zea mays L.) seedlings, the activities of hydrolytic enzymes (pectinase, xylanase, and cellulase) in adventitious roots, and the growth of adventitious and main roots were studied. Aggravated hypoxia resulted in the accelerated ethylene production and the activation of enzymes destroying cell walls in the adventitious roots; as a result, the latter changed their growth pattern. The conclusion is that the interrelated responses are adaptive ones, and the adventitious roots play a key role in plant adaptation.
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Bragina, T.V., Rodionova, N.A. & Grinieva, G.M. Ethylene Production and Activation of Hydrolytic Enzymes during Acclimation of Maize Seedlings to Partial Flooding. Russian Journal of Plant Physiology 50, 794–798 (2003). https://doi.org/10.1023/B:RUPP.0000003277.22914.6c
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DOI: https://doi.org/10.1023/B:RUPP.0000003277.22914.6c