【摘 要】
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As important heterotrimeric serine/threonine phosphatases,protein phosphatase 2A(PP2A) complexes composed of a catalytic C subunit,a regulatory B subunit which determines the substrate specificity as
【机 构】
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School of Life Science,Hebei Normal University,Shijiazhuang,050024,China
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As important heterotrimeric serine/threonine phosphatases,protein phosphatase 2A(PP2A) complexes composed of a catalytic C subunit,a regulatory B subunit which determines the substrate specificity as well as cellular localization,and a scaffolding A subunit which brings B and C subunits together.Recent studies have demonstrated PP2A holoenzymes play important roles in regulating biological processes such as root development,cell morphogenesis,floral organ development,flowering time determination,plant hormone signaling,environmental stress resistance et al..Here,we found that knocking out the expression of PP2A Bα and Bβ subunits simultaneously in Arabidopsis could significantly increase the seeds size(around 140 ％of wild type)and seed weight(around 160 ％of wild type).
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