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( 2006), copyright (2006) National Academy of Sciences. Higher to lower auxin concentration is indicated by brighter to darker green. d Simulated SAM exhibiting a spiral pattern. Inset: overlay with autofluorescence signal (red). c Auxin distribution in Arabidopsis inflorescence meristem visualized by DII-VENUS (green, absence of auxin). ( 2003) with permission from Springer Nature.
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