To engineer trehalose metabolism in sugarcane (Saccharum spp. hybrids) two transgenes were introduced to the genome: trehalose-6-phosphate synthase-phosphatase (TPSP), to increase trehalose biosynthesis and an RNAi transgene specific for trehalase, to abrogate trehalose catabolism. In RNAi-expressing lines trehalase expression was abrogated in many plants however no decrease in trehalase activity was observed. In TPSP lines trehalase activity was significantly higher. No events of co-integration of TPSP and RNAi transgenes were observed. We suggest trehalase activity is essential to mitigate embryonic lethal effects of trehalose metabolism and discuss the implications for engineering trehalose metabolism. © 2012 O'Neill et al.
CITATION STYLE
O’Neill, B. P., Purnell, M. P., Nielsen, L. K., & Brumbley, S. M. (2012). RNAi-mediated abrogation of trehalase expression does not affect trehalase activity in sugarcane. SpringerPlus, 1(1), 1–6. https://doi.org/10.1186/2193-1801-1-74
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