Functional Characterization of Arabidopsis Phosphatidylinositol Monophosphate 5-kinase 2 in Lateral Root Development, Gravitropism and Salt Tolerance / by Yu Mei.

Format:

Book

Author/Creator:

Mei, Yu, Dr., author.

Contributor:

SpringerLink (Online service)

Series:

Springer Theses, Recognizing Outstanding Ph.D. Research, 2190-5053 ; 417.

Springer Theses, Recognizing Outstanding Ph.D. Research, 2190-5053 ; 417

Language:

English

Subjects (All):

Life sciences.

Biochemistry.

Plant anatomy.

Plant physiology.

Physical Description:

1 online resource.

Contained In:

Springer eBooks

Place of Publication:

Dordrecht : Springer Netherlands : Imprint: Springer, 2014.

System Details:

Mode of access: World Wide Web.

text file PDF

Summary:

The functional characterization of a key enzyme in the 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.

Other Format:

Printed edition:

ISBN:

9789401793735

Access Restriction:

Restricted for use by site license.