Median section of a corn root showing the expression of the SHR gene (IMAGE)
Caption
Median section of a corn root showing the expression of the SHR gene in its unusual "jumping off" point in the middle layer of cells called the endodermis. From this point, SHR communicates with outer layers to generate multiple layers of cortex, which have known roles in symbiosis and drought and flooding stress.
Credit
Carlos Ortiz-Ramírez
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