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Record Nr. |
UNINA9910298349803321 |
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Autore |
Mei Yu, Dr. |
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Titolo |
Functional Characterization of Arabidopsis Phosphatidylinositol Monophosphate 5-kinase 2 in Lateral Root Development, Gravitropism and Salt Tolerance / / by Yu Mei |
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Pubbl/distr/stampa |
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Dordrecht : , : Springer Netherlands : , : Imprint : Springer, , 2014 |
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ISBN |
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Edizione |
[1st ed. 2014.] |
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Descrizione fisica |
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1 online resource (92 p.) |
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Collana |
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Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053 |
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Disciplina |
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Soggetti |
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Plant enzymes |
Roots (Botany) - Development |
Plant cellular control mechanisms |
Phosphoinositides |
Arabidopsis |
Protein kinases |
Cellular signal transduction |
Biological Science Disciplines |
Plant Physiological Phenomena |
Plant Biochemistry |
Plant Physiology |
Plant Anatomy/Development |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
"Doctoral Thesis accepted by University of Chinese Academy of Sciences, China." |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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Review of Phosphatidylinositol Phosphate Kinase in Phosphatidylinositol Signaling Pathway -- Structure and Expression Pattern Analysis of Arabidopsis PIP5K2 -- Arabidopsis PIP5K2 Is Involved in Lateral Root Development Through Regulating Auxin Accumulation -- Arabidopsis PIP5K2 Is Involved in Root Gravitropism Through Regulation of Polar Auxin Transport -- Arabidopsis PIP5K2 Is Involved in Salt Tolerance. |
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Sommario/riassunto |
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The functional characterization of a key enzyme in the |
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phosphatidylinositol (PI) signaling pathway in the model plant Arabidopsis thaliana is the focus of this thesis. Moreover, a particular focus is the exploration of the biological functions of Arabidopsis phosphatidylinositol monophosphate 5-kinase 2 (PIP5K2), which catalyzes the synthesis of phosphatidylinositol (4,5) bisphosphate, the precursor of two important second messengers (inositol 1,4,5-trisphosphate and diacylglycerol). Employing molecular and genetic approaches, the author isolates and characterizes the expression pattern, physiological functions and underlying mechanism of Arabidopsis PIP5K2. In doing so, he reveals that PIP5K2 is involved in regulating lateral root formation and root gravity response through modulating auxin accumulation and polar auxin transport, and also plays a critical part in salt tolerance. These findings shed new light on the crosstalk between PI signaling and auxin response, both of which fulfill crucial regulatory roles in plant development. |
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