scholarly journals PINOID Kinase Regulates Root Gravitropism through Modulation of PIN2-Dependent Basipetal Auxin Transport in Arabidopsis

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

Role of basipetal auxin transport and lateral auxin movement in rooting and growth of etiolated lupin hypocotyls

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

scholarly journals LAZY3 plays a pivotal role in positive root gravitropism in Lotus japonicus

2019 ◽  
Vol 71 (1) ◽  
pp. 168-177 ◽  
Author(s):  
Yaping Chen ◽  
Shaoming Xu ◽  
Lu Tian ◽  
Leru Liu ◽  
Mingchao Huang ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Auxin Transport ◽  
Positive Root ◽  
Lotus Japonicus ◽  
Polar Auxin Transport ◽  
Pivotal Role ◽  
Root Gravitropism ◽  
Root Stele

LAZY3, polarly localized to the plasma membrane in root stele cells, is involved in rootward polar auxin transport in roots and required for positive root gravitropism in Lotus japonicus.

scholarly journals N-glycan containing a core α1,3-fucose residue is required for basipetal auxin transport and gravitropic response in rice (Oryza sativa )

2016 ◽  
Vol 212 (1) ◽  
pp. 108-122 ◽  
Author(s):  
Rikno Harmoko ◽  
Jae Yong Yoo ◽  
Ki Seong Ko ◽  
Nirmal Kumar Ramasamy ◽  
Bo Young Hwang ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Auxin Transport ◽  
Gravitropic Response ◽  
Fucose Residue ◽  
Basipetal Auxin Transport

scholarly journals Extracellular ATP Inhibits Root Gravitropism at Concentrations That Inhibit Polar Auxin Transport

2003 ◽  
Vol 131 (1) ◽  
pp. 147-154 ◽  
Author(s):  
Wenqiang Tang ◽  
Shari R. Brady ◽  
Yu Sun ◽  
Gloria K. Muday ◽  
Stanley J. Roux
Keyword(s):  
Auxin Transport ◽  
Extracellular Atp ◽  
Polar Auxin Transport ◽  
Root Gravitropism

scholarly journals The role of Arabidopsis Actin-Related Protein 3 in amyloplast sedimentation and polar auxin transport in root gravitropism

2016 ◽  
Vol 67 (18) ◽  
pp. 5325-5337 ◽  
Author(s):  
Jun-Jie Zou ◽  
Zhong-Yu Zheng ◽  
Shan Xue ◽  
Han-Hai Li ◽  
Yu-Ren Wang ◽  
...  
Keyword(s):  
Auxin Transport ◽  
Polar Auxin Transport ◽  
Related Protein ◽  
Root Gravitropism

Potassium transporter TRH1/KUP4 contributes to distinct auxin-mediated root system architecture responses

2021 ◽  
Author(s):  
Dimitris Templalexis ◽  
Dikran Tsitsekian ◽  
Chen Liu ◽  
Gerasimos Daras ◽  
Jan Šimura ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Root System ◽  
Root Hair ◽  
System Architecture ◽  
Auxin Transport ◽  
Root System Architecture ◽  
Growth Responses ◽  
Specific Expression ◽  
Peripheral Cell ◽  
Root Gravitropism

Abstract In plants, auxin transport and development are tightly coupled, just as hormone and growth responses are intimately linked in multicellular systems. Here we provide insights into uncoupling this tight control by specifically targeting the expression of TINY ROOT HAIR 1 (TRH1), a member of plant HAK/KUP/KT transporters that facilitate potassium uptake by co-transporting protons, in Arabidopsis root cell files. Use of this system pinpointed specific root developmental responses to acropetal versus basipetal auxin transport. Loss of TRH1 function shows tiny root hairs and defective root gravitropism, associated with auxin imbalance in the root apex. Cell file-specific expression of TRH1 in the central cylinder rescued trh1 root agravitropism, whereas positional TRH1 expression in peripheral cell layers, including epidermis and cortex, restored trh1 root hair defects. Applying a systems-level approach, the role of RAP2.11 and RSL5 transcription factors in root hair development was verified. Furthermore, ERF53 and WRKY51 transcription factors were overrepresented upon restoration of root gravitropism supporting involvement in gravitropic control. Auxin has a central role in shaping root system architecture by regulating multiple developmental processes. We reveal that TRH1 jointly modulates intracellular ionic gradients and cell-to-cell polar auxin transport to drive root epidermal cell differentiation and gravitropic response. Our results indicate the developmental importance of HAK/KUP/KT proton-coupled K+ transporters.

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