scholarly journals The anthocyanin reduced Tomato Mutant Demonstrates the Role of Flavonols in Tomato Lateral Root and Root Hair Development

2014 ◽  
Vol 166 (2) ◽  
pp. 614-631 ◽  
Author(s):  
G. S. Maloney ◽  
K. T. DiNapoli ◽  
G. K. Muday
Keyword(s):  
Root Hair ◽  
Lateral Root ◽  
Root Hair Development ◽  
Hair Development ◽  
Tomato Mutant

scholarly journals KAI2 regulates root and root hair development by modulating auxin distribution

2019 ◽  
Author(s):  
José Antonio Villaecija-Aguilar ◽  
Maxime Hamon-Josse ◽  
Samy Carbonnel ◽  
Annika Kretschmar ◽  
Karin Ljung ◽  
...  
Keyword(s):  
Root Development ◽  
Root Hair ◽  
Root Traits ◽  
Signalling Molecules ◽  
Auxin Distribution ◽  
Root Hair Development ◽  
Root Hair Density ◽  
Hair Development ◽  
F Box Protein

ABSTRACTStrigolactones (SLs) are endogenous signalling molecules that play important roles in controlling plant development. SL perception is closely related to that of karrikins, smoke-derived compounds presumed to mimic endogenous signalling molecules (KLs). SLs have been suggested to regulate root development. However, perception of both molecules requires the F-box protein MAX2 and the use of max2 mutants has hampered defining the exact role of SLs in roots. Here we dissect the role of SL and KL signalling in Arabidopsis root development using mutants defective in the α/β hydrolase receptors D14 and KAI2, which specifically perceive SLs and KLs, respectively. Both pathways together regulate lateral root density (LRD), but contrary to previous reports, KL signalling alone controls root hair density, root hair length and additionally root skewing, straightness and diameter. Members of the SMXL protein family are downstream targets of SL (SMXL6, 7, 8) and KL (SMAX1, SMXL2) signalling. We identified distinct and overlapping roles of these proteins in the regulation of root development. Both SMAX1/SMXL2 and SMXL6/SMXL7/SMXL8 regulate LRD, confirming that SL and KL signalling act together to regulate this trait, while the KL-signalling specific SMAX1 and SMXL2 regulate all other investigated root traits. Finally, we show that KL signalling regulates root hair development by modulating auxin distribution within the root.

scholarly journals Nitrate regulation of lateral root and root hair development in plants

2019 ◽  
Vol 71 (15) ◽  
pp. 4405-4414
Author(s):  
Bohan Liu ◽  
Junyu Wu ◽  
Shuaiqi Yang ◽  
John Schiefelbein ◽  
Yinbo Gan
Keyword(s):  
Signaling Pathway ◽  
Root Hair ◽  
Lateral Root ◽  
Molecular Mechanisms ◽  
Higher Plants ◽  
Plant Root ◽  
Long Distance ◽  
Lateral Root Development ◽  
Root Hair Development ◽  
Hair Development

Abstract Nitrogen (N) is one of the most important macronutrients for plant growth and development. However, the concentration and distribution of N varies in soil due to a variety of environmental factors. In response, higher plants have evolved a developmentally flexible root system to efficiently take up N under N-limited conditions. Over the past decade, significant progress has been made in understanding this form of plant ‘root-foraging’ behavior, which is controlled by both a local and a long-distance systemic nitrate signaling pathway. In this review, we focus on the key components of nitrate perception, signaling, and transduction and its role in lateral root development. We also highlight recent findings on the molecular mechanisms of the nitrate systemic signaling pathway, including small signaling peptides involved in long-distance shoot–root communication. Furthermore, we summarize the transcription factor networks responsible for nitrate-dependent lateral root and root hair development.

scholarly journals Role of mitochondrial cyanide detoxification in Arabidopsis root hair development

2018 ◽  
Vol 13 (12) ◽  
pp. e1537699 ◽  
Author(s):  
Lucía Arenas-Alfonseca ◽  
Cecilia Gotor ◽  
Luis C. Romero ◽  
Irene García
Keyword(s):  
Root Hair ◽  
Arabidopsis Root ◽  
Root Hair Development ◽  
Cyanide Detoxification ◽  
Hair Development

MDR-like ABC transporter AtPGP4 is involved in auxin-mediated lateral root and root hair development

FEBS Letters ◽  
2005 ◽  
Vol 579 (24) ◽  
pp. 5399-5406 ◽  
Author(s):  
Diana Santelia ◽  
Vincent Vincenzetti ◽  
Elisa Azzarello ◽  
Lucien Bovet ◽  
Yoichiro Fukao ◽  
...  
Keyword(s):  
Abc Transporter ◽  
Root Hair ◽  
Lateral Root ◽  
Root Hair Development ◽  
Hair Development
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