PART OF A SPECIAL ISSUE ON PLANT CELL WALLS Function of xyloglucan endotransglucosylase/hydrolases in rice
نویسندگان
چکیده
Yoshinao Hara1, Ryusuke Yokoyama1, Keishi Osakabe2, Seiichi Toki3 and Kazuhiko Nishitani1,* Department of Developmental Biology and Neurosciences, Graduate School of Life Sciences, Tohoku University, Sendai, 980-8578, Japan, Center for Collaboration among Agriculture, Industry and Commerce, University of Tokushima, Tokushima, 770-8501 Japan and Plant Genome Engineering Research Unit, National Institute of Agrobiological Sciences, Kannondai, Tsukuba, Ibaraki, 305-8602, Japan * For correspondence. E-mail [email protected]
منابع مشابه
Enzymic characterization of two recombinant xyloglucan endotransglucosylase/hydrolase (XTH) proteins of Arabidopsis and their effect on root growth and cell wall extension.
Xyloglucan endotransglucosylase/hydrolases (XTHs) are enzymes involved in the modification of load-bearing cell wall components. They cleave xyloglucan chains and, often, re-form bonds to the non-reducing ends of available xyloglucan molecules in plant primary cell walls. The enzymic properties and effects on root growth of two Arabidopsis thaliana XTHs belonging to subgroup I/II, that are pred...
متن کاملXyloglucan endotransglucosylase activity loosens a plant cell wall.
BACKGROUND AND AIMS Plant cells undergo cell expansion when a temporary imbalance between the hydraulic pressure of the vacuole and the extensibility of the cell wall makes the cell volume increase dramatically. The primary cell walls of most seed plants consist of cellulose microfibrils tethered mainly by xyloglucans and embedded in a highly hydrated pectin matrix. During cell expansion the wa...
متن کاملThe AtXTH28 Gene, a Xyloglucan Endotransglucosylase/Hydrolase, is Involved in Automatic Self-Pollination in Arabidopsis thaliana
Successful automatic self-pollination in flowering plants is dependent on the correct development of reproductive organs. In the stamen, the appropriate growth of the filament, which largely depends on the mechanical properties of the cell wall, is required to position the anther correctly close to the stigma at the pollination stage. Xyloglucan endotransglucosylase/hydrolases (XTHs) are a fami...
متن کاملZmXTH1, a new xyloglucan endotransglucosylase/hydrolase in maize, affects cell wall structure and composition in Arabidopsis thaliana.
Xyloglucan endotransglucosylase/hydrolases (XTHs; EC 2.4.1.207 and/or EC 3.2.1.151) are enzymes involved in the modification of cell wall structure by cleaving and, often, also re-joining xyloglucan molecules in primary plant cell walls. Using a pool of antibodies raised against an enriched cell wall protein fraction, a new XTH cDNA in maize, ZmXTH1, has been isolated from a cDNA expression lib...
متن کاملCharacterization of a xyloglucan endotransglucosylase gene that is up-regulated by gibberellin in rice.
Xyloglucan endotransglucosylases/hydrolases (XTHs) that mediate cleavage and rejoining of the beta (1-4)-xyloglucans of the primary cell wall are considered to play an important role in the construction and restructuring of xyloglucan cross-links. A novel rice (Oryza sativa) XTH-related gene, OsXTH8, was cloned and characterized after being identified by cDNA microarray analysis of gibberellin-...
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