Transgenic Plants from Dr. Davis's Lab.


Day 1
Dr. George Davis shared photos of transgenic tomato plants from his laboratory. The top photo shows plants  at day 1 grown in iron deficient Hoagland's solution at pH 7.4. Iron was provided as 10 µM FeCl3/15 µM avenic acid. Sample 13 (the top plant) has been transformed with an iron/avenic acid transporter isolated from roots of iron starved oats. Avenic acid Sample 14 (the lower plant) is untransformed. The bottom photo shows the tomato plants at day 14. Note the iron deficiency chlorosis in new leaves in sample 14. Avenic acid is the phytosiderophore synthesized by oats. Our synthetic form was made by our colleague, Dr. Mark Stocksdale, Earlham College
Day 14





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