scholarly journals Cytosolic invertases contribute to cellulose biosynthesis and influence carbon partitioning in seedlings ofArabidopsis thaliana

2018 ◽  
Vol 94 (6) ◽  
pp. 956-974 ◽  
Author(s):  
William J. Barnes ◽  
Charles T. Anderson
Keyword(s):  
Carbon Partitioning ◽  
Cellulose Biosynthesis ◽  
Ofarabidopsis Thaliana

scholarly journals Inhibition of cell expansion enhances cortical microtubule stability in the root apex of Arabidopsis thaliana

2021 ◽  
Vol 28 (1) ◽  
Author(s):  
Veronica Giourieva ◽  
Emmanuel Panteris
Keyword(s):  
Arabidopsis Thaliana ◽  
Cell Wall ◽  
Cell Expansion ◽  
Cortical Microtubule ◽  
Root Apex ◽  
Cellulose Synthase ◽  
Cellulose Biosynthesis ◽  
Cortical Microtubules ◽  
Wild Type ◽  
Microtubule Stability

Abstract Background Cortical microtubules regulate cell expansion by determining cellulose microfibril orientation in the root apex of Arabidopsis thaliana. While the regulation of cell wall properties by cortical microtubules is well studied, the data on the influence of cell wall to cortical microtubule organization and stability remain scarce. Studies on cellulose biosynthesis mutants revealed that cortical microtubules depend on Cellulose Synthase A (CESA) function and/or cell expansion. Furthermore, it has been reported that cortical microtubules in cellulose-deficient mutants are hypersensitive to oryzalin. In this work, the persistence of cortical microtubules against anti-microtubule treatment was thoroughly studied in the roots of several cesa mutants, namely thanatos, mre1, any1, prc1-1 and rsw1, and the Cellulose Synthase Interacting 1 protein (csi1) mutant pom2-4. In addition, various treatments with drugs affecting cell expansion were performed on wild-type roots. Whole mount tubulin immunolabeling was applied in the above roots and observations were performed by confocal microscopy. Results Cortical microtubules in all mutants showed statistically significant increased persistence against anti-microtubule drugs, compared to those of the wild-type. Furthermore, to examine if the enhanced stability of cortical microtubules was due to reduced cellulose biosynthesis or to suppression of cell expansion, treatments of wild-type roots with 2,6-dichlorobenzonitrile (DCB) and Congo red were performed. After these treatments, cortical microtubules appeared more resistant to oryzalin, than in the control. Conclusions According to these findings, it may be concluded that inhibition of cell expansion, irrespective of the cause, results in increased microtubule stability in A. thaliana root. In addition, cell expansion does not only rely on cortical microtubule orientation but also plays a regulatory role in microtubule dynamics, as well. Various hypotheses may explain the increased cortical microtubule stability under decreased cell expansion such as the role of cell wall sensors and the presence of less dynamic cortical microtubules.

scholarly journals Carbon Partitioning in Eelgrass (Regulation by Photosynthesis and the Response to Daily Light-Dark Cycles)

1995 ◽  
Vol 108 (4) ◽  
pp. 1665-1671 ◽  
Author(s):  
R. C. Zimmerman ◽  
D. G. Kohrs ◽  
D. L. Steller ◽  
R. S. Alberte
Keyword(s):  
Carbon Partitioning

Carbon Partitioning and Herbicide Transport in Glyphosate-Treated Sugarbeet (Beta vulgaris)

Weed Science ◽  
1984 ◽  
Vol 32 (4) ◽  
pp. 546-551 ◽  
Author(s):  
Judy A. Gougler ◽  
Donald R. Geiger
Keyword(s):  
Beta Vulgaris ◽  
Carbon Metabolism ◽  
Carbon Partitioning ◽  
Starch Accumulation ◽  
Carbon Export ◽  
Carbon Translocation ◽  
Herbicide Transport

Glyphosate [N-(phosphonomethyl)glycine] had several effects on carbon translocation in sugarbeet (Beta vulgarisL. ‘Klein E multigerm’): a) import of carbon by sink leaves was inhibited, b) net starch accumulation in source leaves was stopped, and c) carbon export from source leaves in the dark was stopped following 10 h of treatment in the light. During periods when no carbon was exported, glyphosate also was not transported from treated leaves. The limitation of glyphosate transport, resulting from disruption of carbon metabolism, appears important in the study and use of the herbicide.

N form–dependent growth retardation ofArabidopsis thaliana seedlings as revealed from physiological and microarray studies

2007 ◽  
Vol 170 (1) ◽  
pp. 87-97 ◽  
Author(s):  
Anne Hoffmann ◽  
Sabine Milde ◽  
Christine Desel ◽  
Anja Hümpel ◽  
Hartmut Kaiser ◽  
...  
Keyword(s):  
Growth Retardation ◽  
Ofarabidopsis Thaliana ◽  
N Form ◽  
Dependent Growth ◽  
Microarray Studies

Fructokinase is required for carbon partitioning to cellulose in aspen wood

2012 ◽  
Vol 70 (6) ◽  
pp. 967-977 ◽  
Author(s):  
Melissa Roach ◽  
Lorenz Gerber ◽  
David Sandquist ◽  
András Gorzsás ◽  
Mattias Hedenström ◽  
...  
Keyword(s):  
Carbon Partitioning ◽  
Aspen Wood

Calorimetric study of carbon partitioning from martensite into austenite

2010 ◽  
Vol 82 (10) ◽  
Author(s):  
Emmanuel De Moor ◽  
Cecilia Föjer ◽  
Jan Penning ◽  
Amy J. Clarke ◽  
John G. Speer
Keyword(s):  
Carbon Partitioning ◽  
Calorimetric Study
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