Jitender Singh, Donald James, Shubhashis Das, Manish Kumar Patel, Rashmi Ranjan Sutar, V Mohan Murali Achary, Naveen Goel, Kapuganti Jagadis Gupta, Malireddy K Reddy, Gopaljee Jha, Ramesh V Sonti, Christine H Foyer, Jitendra Kumar Thakur, Baishnab C Tripathy
Enhancing carbohydrate export from source to sink tissues is considered to be a realistic approach for improving photosynthetic efficiency and crop yield. The rice sucrose transporters OsSUT1, OsSWEET11a and OsSWEET14 contribute to sucrose phloem loading and seed filling. Crucially, Xanthomonas oryzae pv. oryzae (Xoo) infection in rice enhances the expression of OsSWEET11a and OsSWEET14 genes, and causes leaf blight. Here we show that co-overexpression of OsSUT1, OsSWEET11a and OsSWEET14 in rice reduced sucrose synthesis and transport leading to lower growth and yield but reduced susceptibility to Xoo relative to controls...
March 27, 2024: Plant, Cell & Environment