Complex regulation of Arabidopsis AGR1/PIN2-mediated root gravitropic response and basipetal auxin transport by cantharidin-sensitive protein phosphatases

2005 ◽  
Vol 42 (2) ◽  
pp. 188-200 ◽  
Author(s):  
Heungsop Shin ◽  
Hwa-Soo Shin ◽  
Zibiao Guo ◽  
Elison B. Blancaflor ◽  
Patrick H. Masson ◽  
...  
2016 ◽  
Vol 212 (1) ◽  
pp. 108-122 ◽  
Author(s):  
Rikno Harmoko ◽  
Jae Yong Yoo ◽  
Ki Seong Ko ◽  
Nirmal Kumar Ramasamy ◽  
Bo Young Hwang ◽  
...  

2004 ◽  
Vol 121 (2) ◽  
pp. 294-304 ◽  
Author(s):  
Juana Ines Lopez Nicolas ◽  
Manuel Acosta ◽  
Jose Sanchez-Bravo

2011 ◽  
Vol 67 (5) ◽  
pp. 817-826 ◽  
Author(s):  
Hana Rakusová ◽  
Javier Gallego-Bartolomé ◽  
Marleen Vanstraelen ◽  
Hélène S. Robert ◽  
David Alabadí ◽  
...  

2019 ◽  
Author(s):  
Suruchi Roychoudhry ◽  
Katelyn Sageman-Furnas ◽  
Chris Wolverton ◽  
Heather L. Goodman ◽  
Peter Grones ◽  
...  

AbstractLateral roots of many species are maintained at non-vertical angles with respect to gravity. These gravitropic setpoint angles (GSAs) are intriguing because their maintenance requires that roots are able to effect gravitropic response both with and against the gravity vector. Here we have used the Arabidopsis lateral root in order to investigate the molecular basis of the maintenance of non-vertical GSAs. We show that gravitropism in the lateral root is angle-dependent and that both upward and downward graviresponse requires auxin transport and the generation of auxin asymmetries consistent with the Cholodny-Went model. We show that the symmetry in auxin distribution in lateral roots growing at GSA can be traced back to a net, balanced polarization of PIN3 and PIN7 auxin transporters in the columella cells. Further, upward and downward graviresponse in lateral roots correlates with corresponding changes in PIN3 and PIN7 polar localisation. Finally, we show that auxin, in addition to driving tropic growth in the lateral root, acts within the columella to regulate GSA via the PIN phosphatase subunit RCN1 in a PIN3-dependent and PIN7-independent manner. Together, these findings provide a molecular framework for understanding gravity-dependent nonvertical growth in Arabidopsis lateral roots.


2009 ◽  
Vol 150 (2) ◽  
pp. 722-735 ◽  
Author(s):  
Poornima Sukumar ◽  
Karin S. Edwards ◽  
Abidur Rahman ◽  
Alison DeLong ◽  
Gloria K. Muday

2019 ◽  
Vol 39 (1) ◽  
pp. 378-394 ◽  
Author(s):  
Ludmila L. Novitskaya ◽  
Tatiana V. Tarelkina ◽  
Natalia A. Galibina ◽  
Yulia L. Moshchenskaya ◽  
Nadezhda N. Nikolaeva ◽  
...  

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