Regulation of ethylene biosynthesis through protein degradation
نویسندگان
چکیده
منابع مشابه
New Insights into the Protein Turnover Regulation in Ethylene Biosynthesis
Biosynthesis of the phytohormone ethylene is under tight regulation to satisfy the need for appropriate levels of ethylene in plants in response to exogenous and endogenous stimuli. The enzyme 1-aminocyclopropane-1-carboxylic acid synthase (ACS), which catalyzes the rate-limiting step of ethylene biosynthesis, plays a central role to regulate ethylene production through changes in ACS gene expr...
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Strictly controlled production of ethylene gas lies upstream of the signaling activities of this crucial regulator throughout the plant life cycle. Although the biosynthetic pathway is enzymatically simple, the regulatory circuits that modulate signal production are fine tuned to allow integration of responses to environmental and intrinsic cues. Recently identified posttranslational mechanisms...
متن کاملRegulation of Protein Degradation.
INTRODUCTION The intracellular level of a protein is dependent on both its rate of synthesis and its rate of degradation. Thus, differential regulation of protein stability represents a potential mechanism for modulating gene expression. lncreasing evidence suggests that protein degradation is indeed a regulatory mechanism in vivo. Dramatic differences in the in vivo stability of different prot...
متن کاملEnzymes of ethylene biosynthesis.
The properties of enzymes involved in ethylene biosynthesis are reviewed and progress toward the purification of these enzymes is described. The enzyme whose activity usually limits ethylene biosynthesis is 1-aminocyclopropane-1-carboxylate (ACC) synthase. Even though its level in plants is extremely low, it has now been purified from several sources. The enzyme that converts ACC to ethylene do...
متن کاملBanana ethylene response factors are involved in fruit ripening through their interactions with ethylene biosynthesis genes
The involvement of ethylene response factor (ERF) transcription factor (TF) in the transcriptional regulation of ethylene biosynthesis genes during fruit ripening remains largely unclear. In this study, 15 ERF genes, designated as MaERF1-MaERF15, were isolated and characterized from banana fruit. These MaERFs were classified into seven of the 12 known ERF families. Subcellular localization show...
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ژورنال
عنوان ژورنال: Plant Signaling & Behavior
سال: 2012
ISSN: 1559-2324
DOI: 10.4161/psb.21930