Abstract
In a comparison of the cytoplasms of Normal (N) and Texas (T) cytoplasmic male-sterile, consistently higher total and specific β-amylase activity was found in 10-day-old leaves of N plants. This was evident in all nine lines tested although the lines differed markedly in total amylase activity ranging from a low of 2.7 to a high of 112.5 (mg maltose/g/hr). Statistically significant differences were confirmed between cytoplasms and between inbred lines in β-amylase activity. On the basis of the activity ratio of N/T, the analysis of variance did not show any interaction between cytoplasms and lines, β-amylase activities from leaves of B37 N and T plants were identical with respect to Km, pH optimum, temperature sensitivity and mobility on gel electrophoresis. This difference between the N and T cytoplasms indicates that the β-amylase, though originating from chromosomal genes, is influenced by the cytoplasm in its total and specific activity and that this is correlated with male sterility.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
