Glucosamine causes overproduction of reactive oxygen species, leading to repression of hypocotyl elongation through a hexokinase-mediated mechanism in Arabidopsis.

Abstract excerpt

Glucosamine (GlcN) is a naturally occurring amino-sugar that is synthesized by amidation of fructose-6-phosphate. Although a number of reports have examined the biological effects of GlcN on insulin resistance in mammalian systems, little is known about its effects on plant growth. In this study, we have shown that exogenous GlcN inhibits hypocotyl elongation in Arabidopsis, whereas glucose and its analogs...

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