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Sucrose Metabolism In Two Saccharum Species, Monica Ida Valdez-Garza
Sucrose Metabolism In Two Saccharum Species, Monica Ida Valdez-Garza
Theses and Dissertations - UTB/UTPA
S. officinarum is a thick-stemmed sugarcane which stores large amounts of sucrose, and S. spontaneum is thin-stemmed with very little sucrose. Sucrose synthase (SS), sucrose phosphate synthase (SPS), and invertase enzymes are thought to affect the accumulation of sucrose in the stems of sugarcane. This study was performed to determine if (i) differences between SPS and acid invertase activities account for the difference in sucrose content of sugarcane stems, and (ii) differences in SS activity influence sucrose concentration. The difference between SPS and acid invertase activities did not appear related to the low sucrose content in S. spontaneum. However, the …