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Ethylene is differentially regulated during sugar beet germination and affects early root growth in a dose-dependent manner

(2014) PLANTA. 240(4). p.679-686
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Abstract
Main conclusion: By integrating molecular, biochemical, and physiological data, ethylene biosynthesis in sugar beet was shown to be differentially regulated, affecting root elongation in a concentration-dependent manner. There is a close relation between ethylene production and seedling growth of sugar beet (Beta vulgaris L.), yet the exact function of ethylene during this early developmental stage is still unclear. While ethylene is mostly considered to be a root growth inhibitor, we found that external 1-aminocyclopropane-1-carboxylic acid (ACC) regulates root growth in sugar beet in a concentration-dependent manner: low concentrations stimulate root growth while high concentrations inhibit root growth. These results reveal that ethylene action during root elongation is strongly concentration dependent. Furthermore our detailed study of ethylene biosynthesis kinetics revealed a very strict gene regulation pattern of ACC synthase (ACS) and ACC oxidase (ACO), in which ACS is the rate liming step during sugar beet seedling development.
Keywords
ACC, Ethylene, ACC synthase, ACC oxidase, Root elongation, Sugar beet, 1-AMINOCYCLOPROPANE-1-CARBOXYLIC ACID, SEED-GERMINATION, ARABIDOPSIS-THALIANA, BETA-VULGARIS, ABSCISIC-ACID, AUXIN BIOSYNTHESIS, CELL ELONGATION, HIGHER-PLANTS, EXPRESSION, STRESS

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Chicago
Abts, Willem, Bram Van de Poel, Bert Vandenbussche, and Maurice P De Proft. 2014. “Ethylene Is Differentially Regulated During Sugar Beet Germination and Affects Early Root Growth in a Dose-dependent Manner.” Planta 240 (4): 679–686.
APA
Abts, W., Van de Poel, B., Vandenbussche, B., & De Proft, M. P. (2014). Ethylene is differentially regulated during sugar beet germination and affects early root growth in a dose-dependent manner. PLANTA, 240(4), 679–686.
Vancouver
1.
Abts W, Van de Poel B, Vandenbussche B, De Proft MP. Ethylene is differentially regulated during sugar beet germination and affects early root growth in a dose-dependent manner. PLANTA. 2014;240(4):679–86.
MLA
Abts, Willem, Bram Van de Poel, Bert Vandenbussche, et al. “Ethylene Is Differentially Regulated During Sugar Beet Germination and Affects Early Root Growth in a Dose-dependent Manner.” PLANTA 240.4 (2014): 679–686. Print.
@article{5820188,
  abstract     = {Main conclusion: By integrating molecular, biochemical, and physiological data, ethylene biosynthesis in sugar beet was shown to be differentially regulated, affecting root elongation in a concentration-dependent manner. 
There is a close relation between ethylene production and seedling growth of sugar beet (Beta vulgaris L.), yet the exact function of ethylene during this early developmental stage is still unclear. While ethylene is mostly considered to be a root growth inhibitor, we found that external 1-aminocyclopropane-1-carboxylic acid (ACC) regulates root growth in sugar beet in a concentration-dependent manner: low concentrations stimulate root growth while high concentrations inhibit root growth. These results reveal that ethylene action during root elongation is strongly concentration dependent. Furthermore our detailed study of ethylene biosynthesis kinetics revealed a very strict gene regulation pattern of ACC synthase (ACS) and ACC oxidase (ACO), in which ACS is the rate liming step during sugar beet seedling development.},
  author       = {Abts, Willem and Van de Poel, Bram and Vandenbussche, Bert and De Proft, Maurice P},
  issn         = {0032-0935},
  journal      = {PLANTA},
  keyword      = {ACC,Ethylene,ACC synthase,ACC oxidase,Root elongation,Sugar beet,1-AMINOCYCLOPROPANE-1-CARBOXYLIC ACID,SEED-GERMINATION,ARABIDOPSIS-THALIANA,BETA-VULGARIS,ABSCISIC-ACID,AUXIN BIOSYNTHESIS,CELL ELONGATION,HIGHER-PLANTS,EXPRESSION,STRESS},
  language     = {eng},
  number       = {4},
  pages        = {679--686},
  title        = {Ethylene is differentially regulated during sugar beet germination and affects early root growth in a dose-dependent manner},
  url          = {http://dx.doi.org/10.1007/s00425-014-2124-0},
  volume       = {240},
  year         = {2014},
}

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