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Plant Sciences

Dartmouth College

2000

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An Enhancer Trap Line Associated With A D-Class Cyclin Gene In Arabidopsis, Kankshita Swaminathan, Yingzhen Yang, Natasha Grotz, Lauren Campisi, Thomas Jack Dec 2000

An Enhancer Trap Line Associated With A D-Class Cyclin Gene In Arabidopsis, Kankshita Swaminathan, Yingzhen Yang, Natasha Grotz, Lauren Campisi, Thomas Jack

Dartmouth Scholarship

In yeast and animals, cyclins have been demonstrated to be important regulators of cell cycle progression. In recent years, a large number of A-, B-, and D-class cyclins have been isolated from a variety of plant species. One class of cyclins, the D-class cyclins, is important for progression through G1 phase of the cell cycle. In Arabidopsis, four D-class cyclins have been isolated and characterized (CYCLIN-D1;1, CYCLIN-D2;1,CYCLIN-D3;1, and CYCLIN-D4;1). In this report we describe the characterization of a fifth D-class cyclin gene,CYCLIN-D3;2 (CYCD3;2), from Arabidopsis. An enhancer trap line, line 5580, …


Integrated Temporal Regulation Of The Photorespiratory Pathway. Circadian Regulation Of Two Arabidopsis Genes Encoding Serine Hydroxymethyltransferase, C Robertson Mcclung, Meier Hsu, Janet E. Painter, Jennifer M. Gagne, Sharon D. Karlsberg, Patrice A. Salome May 2000

Integrated Temporal Regulation Of The Photorespiratory Pathway. Circadian Regulation Of Two Arabidopsis Genes Encoding Serine Hydroxymethyltransferase, C Robertson Mcclung, Meier Hsu, Janet E. Painter, Jennifer M. Gagne, Sharon D. Karlsberg, Patrice A. Salome

Dartmouth Scholarship

The photorespiratory pathway is comprised of enzymes localized within three distinct cellular compartments: chloroplasts, peroxisomes, and mitochondria. Photorespiratory enzymes are encoded by nuclear genes, translated in the cytosol, and targeted into these distinct subcellular compartments. One likely means by which to regulate the expression of the genes encoding photorespiratory enzymes is coordinated temporal control. We have previously shown in Arabidopsis that a circadian clock regulates the expression of the nuclear genes encoding both chloroplastic (Rubisco small subunit and Rubisco activase) and peroxisomal (catalase) components of the photorespiratory pathway. To determine whether a circadian clock also regulates the expression of genes …