Phosphatidylinositol 4-Phosphate is Required for Tip Growth in Arabidopsis thaliana

2009 ◽  
pp. 65-77 ◽  
Author(s):  
Amy L. Szumlanski ◽  
Erik Nielsen
Keyword(s):  
Arabidopsis Thaliana ◽  
Tip Growth ◽  
Phosphatidylinositol 4

scholarly journals Structural Sterols Are Involved in Both the Initiation and Tip Growth of Root Hairs in Arabidopsis thaliana

2010 ◽  
Vol 22 (9) ◽  
pp. 2999-3019 ◽  
Author(s):  
Miroslav Ovečka ◽  
Tobias Berson ◽  
Martina Beck ◽  
Jan Derksen ◽  
Jozef Šamaj ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Tip Growth ◽  
Root Hairs

scholarly journals A role for the RabA4b effector protein PI-4Kβ1 in polarized expansion of root hair cells in Arabidopsis thaliana

2006 ◽  
Vol 172 (7) ◽  
pp. 991-998 ◽  
Author(s):  
Mary L. Preuss ◽  
Aaron J. Schmitz ◽  
Julie M. Thole ◽  
Heather K.S. Bonner ◽  
Marisa S. Otegui ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Hair Cells ◽  
Root Hair ◽  
Root Hairs ◽  
Developmentally Regulated ◽  
Domain Specific ◽  
Polarized Secretion ◽  
Phosphatidylinositol 4 ◽  
Golgi Network ◽  
Root Hair Cells

The RabA4b GTPase labels a novel, trans-Golgi network compartment displaying a developmentally regulated polar distribution in growing Arabidopsis thaliana root hair cells. GTP bound RabA4b selectively recruits the plant phosphatidylinositol 4-OH kinase, PI-4Kβ1, but not members of other PI-4K families. PI-4Kβ1 colocalizes with RabA4b on tip-localized membranes in growing root hairs, and mutant plants in which both the PI-4Kβ1 and -4Kβ2 genes are disrupted display aberrant root hair morphologies. PI-4Kβ1 interacts with RabA4b through a novel homology domain, specific to eukaryotic type IIIβ PI-4Ks, and PI-4Kβ1 also interacts with a Ca2+ sensor, AtCBL1, through its NH2 terminus. We propose that RabA4b recruitment of PI-4Kβ1 results in Ca2+-dependent generation of PI-4P on this compartment, providing a link between Ca2+ and PI-4,5P2–dependent signals during the polarized secretion of cell wall components in tip-growing root hair cells.

Enrichment of Phosphatidylinositol 4,5-Bisphosphate in the Extra-Invasive Hyphal Membrane Promotes Colletotrichum Infection of Arabidopsis thaliana

2019 ◽  
Vol 60 (7) ◽  
pp. 1514-1524 ◽  
Author(s):  
Takashi L Shimada ◽  
Shigeyuki Betsuyaku ◽  
Noriko Inada ◽  
Kazuo Ebine ◽  
Masaru Fujimoto ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Plasma Membrane ◽  
Crucial Role ◽  
Pathogenic Fungi ◽  
Colletotrichum Higginsianum ◽  
Promising Target ◽  
Successful Infection ◽  
Phosphatidylinositol 4 ◽  
Protein Supply ◽  
Plant Plasma Membrane

Abstract Pathogenic fungi from the genus Colletotrichum form invasive hyphae; the hyphae are surrounded by an extra-invasive hyphal membrane (EIHM), which is continuous with the plant plasma membrane. Although the EIHM plays a crucial role as the interface between plant and fungal cells, its precise function during Colletotrichum infection remains elusive. Here, we show that enrichment of phosphoinositides (PIs) has a crucial role in Colletotrichum infection. We observed the localization of PIs in Arabidopsis thaliana cells infected by A. thaliana-adapted Colletotrichum higginsianum (Ch), and found that phosphatidylinositol 4,5-bisphosphate [PI(4,5)P2] was extremely enriched in the EIHM during Ch infection. We also found that phosphatidylinositol 4-phosphate-5 kinase (PIP5K), which catalyzes production of PI(4,5)P2, also accumulated at the EIHM. The overexpression of PIP5K3 in A. thaliana increased hyphal invasion by Ch. An exocytic factor, EXO84b, was targeted to the EIHM during Ch infection, although endocytic factors such as CLATHRIN LIGHT CHAIN 2 and FLOTILLIN 1 did not. Intriguingly, the interfacial membranes between A. thaliana and powdery mildew- or downy mildew-causing pathogens did not accumulate PI(4,5)P2. These results suggest that Ch could modify the PI(4,5)P2 levels in the EIHM to increase the exocytic membrane/protein supply of the EIHM for successful infection. Our results also suggest that PI(4,5)P2 biosynthesis is a promising target for improved defense against Colletotrichum infection.

scholarly journals Pollen Tube and Root-Hair Tip Growth Is Disrupted in a Mutant of Arabidopsis thaliana

1993 ◽  
Vol 103 (3) ◽  
pp. 979-985 ◽  
Author(s):  
J. Schiefelbein ◽  
M. Galway ◽  
J. Masucci ◽  
S. Ford
Keyword(s):  
Arabidopsis Thaliana ◽  
Pollen Tube ◽  
Root Hair ◽  
Tip Growth

scholarly journals The Type B Phosphatidylinositol-4-Phosphate 5-Kinase 3 Is Essential for Root Hair Formation in Arabidopsis thaliana

2008 ◽  
Vol 20 (1) ◽  
pp. 124-141 ◽  
Author(s):  
Irene Stenzel ◽  
Till Ischebeck ◽  
Sabine König ◽  
Anna Hołubowska ◽  
Marta Sporysz ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Root Hair ◽  
Type B ◽  
Root Hair Formation ◽  
Phosphatidylinositol 4 ◽  
Hair Formation

scholarly journals Syntaxin of Plant Proteins SYP123 and SYP132 Mediate Root Hair Tip Growth in Arabidopsis thaliana

2014 ◽  
Vol 55 (4) ◽  
pp. 790-800 ◽  
Author(s):  
Mie Ichikawa ◽  
Tomoko Hirano ◽  
Kazuhiko Enami ◽  
Taylor Fuselier ◽  
Naohiro Kato ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Root Hair ◽  
Tip Growth ◽  
Plant Proteins

scholarly journals A gene encoding phosphatidylinositol‐4‐phosphate 5‐kinase is induced by water stress and abscisic acid in Arabidopsis thaliana

1998 ◽  
Vol 15 (4) ◽  
pp. 563-568 ◽  
Author(s):  
Koji Mikami ◽  
Takeshi Katagiri ◽  
Satoshi Iuchi ◽  
Kazuko Yamaguchi‐Shinozaki ◽  
Kazuo Shinozaki
Keyword(s):  
Arabidopsis Thaliana ◽  
Abscisic Acid ◽  
Water Stress ◽  
Gene Encoding ◽  
Phosphatidylinositol 4

scholarly journals Hydroxyproline O ‐arabinosyltransferase mutants oppositely alter tip growth in Arabidopsis thaliana and Physcomitrella patens

2015 ◽  
Vol 85 (2) ◽  
pp. 193-208 ◽  
Author(s):  
Cora A. MacAlister ◽  
Carlos Ortiz‐Ramírez ◽  
Jörg D. Becker ◽  
José A. Feijó ◽  
Zachary B. Lippman
Keyword(s):  
Arabidopsis Thaliana ◽  
Tip Growth ◽  
Physcomitrella Patens

scholarly journals The Rab GTPase RabA4d Regulates Pollen Tube Tip Growth in Arabidopsis thaliana

2009 ◽  
Vol 21 (2) ◽  
pp. 526-544 ◽  
Author(s):  
Amy L. Szumlanski ◽  
Erik Nielsen
Keyword(s):  
Arabidopsis Thaliana ◽  
Pollen Tube ◽  
Tip Growth ◽  
Rab Gtpase
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