Arabinogalactan proteins: involvement in plant growth and morphogenesis.
Arabinogalactan proteins (AGPs) are highly glycosylated hydroxyproline-containing variously located proteoglycans dynamically regulated in the course of plant ontogenesis. Special functions of AGPs are still unclear, but their involvement in vegetative growth and reproduction of plants is well established. This review considers data on the structure, biosynthesis, and metabolism of AGPs. Special attention is given to involvement of AGPs in growth and morphogenesis, and possible mechanisms of their regulatory action are considered. AGPs are also compared with animal proteoglycans.
Rumyantseva
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Kazan Institute of Biochemistry and Biophysics, Kazan Research Center, Russian Academy of Sciences, Kazan, 420111, Russia. rumyantseva@mail.knc.ru
D000818:Animals; D006801:Humans; D009024:Morphogenesis; D009088:Mucoproteins / Q000737:chemistry / Q000502:physiology*; D059828:Plant Cells; D063245:Plant Development; D018521:Plant Physiological Phenomena; D010940:Plant Proteins / Q000737:chemistry / Q000502:physiology; D011509:Proteoglycans / Q000737:chemistry / Q000502:physiology; D015398:Signal Transduction; D013329:Structure-Activity Relationship
D009088:Mucoproteins; D010940:Plant Proteins; D011509:Proteoglycans; C006619:arabinogalactan proteins