The significance of alpha-amylase under anoxia stress in tolerant rhizomes (Acorus calamus L.) and non-tolerant tubers (Solanum tuberosum l., var. Désirée).
Rhizomes of Acorus calamus L. were able to maintain a functional alpha-amylase under anoxia, whereas a steep decrease in the enzyme protein content and activity took place in potato tubers. The stress-induced control in tubers occurred on the translational level. It is suggested that this decrease is one of the key factors with regard to anoxia intolerance.
Arpagaus
S
S
Institute of Plant Physiology, University of Berne, Altenbergrain 21, CH-3013 Berne, Switzerland.
Braendle
R
R
D015152:Blotting, Northern; D010100:Oxygen / Q000378:metabolism*; D011198:Solanum tuberosum / Q000201:enzymology* / Q000378:metabolism / Q000502:physiology; D000516:alpha-Amylases / Q000235:genetics / Q000378:metabolism*
D000516:alpha-Amylases; D010100:Oxygen