Limits...
Auxin, the organizer of the hormonal/environmental signals for root hair growth.

Lee RD, Cho HT - Front Plant Sci (2013)

Bottom Line: These environmental factors affect the root hair developmental process by making use of diverse hormones.These hormonal factors interact with each other to modulate root hair development in which auxin appears to form the most intensive networks with the pathways from environmental factors and hormones.Moreover, auxin action for root hair development is genetically located immediately upstream of the root hair-morphogenetic genes.

View Article: PubMed Central - PubMed

Affiliation: Department of Biological Sciences, Seoul National University Seoul, Korea ; Plant Genomics and Breeding Institute, Seoul National University Seoul, Korea.

ABSTRACT
The root hair development is controlled by diverse factors such as fate-determining developmental cues, auxin-related environmental factors, and hormones. In particular, the soil environmental factors are important as they maximize their absorption by modulating root hair development. These environmental factors affect the root hair developmental process by making use of diverse hormones. These hormonal factors interact with each other to modulate root hair development in which auxin appears to form the most intensive networks with the pathways from environmental factors and hormones. Moreover, auxin action for root hair development is genetically located immediately upstream of the root hair-morphogenetic genes. These observations suggest that auxin plays as an organizing node for environmental/hormonal pathways to modulate root hair growth.

No MeSH data available.


Auxin plays an organizing center for environmental/ hormonal pathways for root hair growth. Navy blue, red, light blue boxes indicate environmental factors, hormones, and genetic factors, respectively. Broken-lined arrows represent the cases where the direct effect on the root hair by the factor has not been shown. The blunt bar end indicates an inhibitory effect.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC3824147&req=5

Figure 1: Auxin plays an organizing center for environmental/ hormonal pathways for root hair growth. Navy blue, red, light blue boxes indicate environmental factors, hormones, and genetic factors, respectively. Broken-lined arrows represent the cases where the direct effect on the root hair by the factor has not been shown. The blunt bar end indicates an inhibitory effect.

Mentions: Root hair-controlling factors listed in this review can be classified largely into fate-determining developmental factors, hormonal factors, auxin-related environmental factors, and finally root hair morphogenetic genes (Figure 1). These factors show diverse interactions; not only linear but also networking and mutual. Environmental factors generally take advantage of hormonal signaling to modulate root hair growth, in which sometimes multiple hormones are implicated to mediate the environmental factor (e.g., Pi deficiency). Environmental factors maximize their effects on root hair development also by affecting the fate-determining developmental steps, resulting in increased root hair number. It is noticeable that most root hair-affecting hormones intensively interact with auxin in various levels; biosynthesis, transport, and signaling of auxin. In the overall signaling pathway for root hair growth, auxin funnels the upstream environmental pathways, and other hormonal signaling right onto the master regulator (RSL4) for root hair growth and morphogenesis. Considering these aspects, auxin is likely to play a role as an organizing center for environmental/hormonal signaling for root hair growth.


Auxin, the organizer of the hormonal/environmental signals for root hair growth.

Lee RD, Cho HT - Front Plant Sci (2013)

Auxin plays an organizing center for environmental/ hormonal pathways for root hair growth. Navy blue, red, light blue boxes indicate environmental factors, hormones, and genetic factors, respectively. Broken-lined arrows represent the cases where the direct effect on the root hair by the factor has not been shown. The blunt bar end indicates an inhibitory effect.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3824147&req=5

Figure 1: Auxin plays an organizing center for environmental/ hormonal pathways for root hair growth. Navy blue, red, light blue boxes indicate environmental factors, hormones, and genetic factors, respectively. Broken-lined arrows represent the cases where the direct effect on the root hair by the factor has not been shown. The blunt bar end indicates an inhibitory effect.
Mentions: Root hair-controlling factors listed in this review can be classified largely into fate-determining developmental factors, hormonal factors, auxin-related environmental factors, and finally root hair morphogenetic genes (Figure 1). These factors show diverse interactions; not only linear but also networking and mutual. Environmental factors generally take advantage of hormonal signaling to modulate root hair growth, in which sometimes multiple hormones are implicated to mediate the environmental factor (e.g., Pi deficiency). Environmental factors maximize their effects on root hair development also by affecting the fate-determining developmental steps, resulting in increased root hair number. It is noticeable that most root hair-affecting hormones intensively interact with auxin in various levels; biosynthesis, transport, and signaling of auxin. In the overall signaling pathway for root hair growth, auxin funnels the upstream environmental pathways, and other hormonal signaling right onto the master regulator (RSL4) for root hair growth and morphogenesis. Considering these aspects, auxin is likely to play a role as an organizing center for environmental/hormonal signaling for root hair growth.

Bottom Line: These environmental factors affect the root hair developmental process by making use of diverse hormones.These hormonal factors interact with each other to modulate root hair development in which auxin appears to form the most intensive networks with the pathways from environmental factors and hormones.Moreover, auxin action for root hair development is genetically located immediately upstream of the root hair-morphogenetic genes.

View Article: PubMed Central - PubMed

Affiliation: Department of Biological Sciences, Seoul National University Seoul, Korea ; Plant Genomics and Breeding Institute, Seoul National University Seoul, Korea.

ABSTRACT
The root hair development is controlled by diverse factors such as fate-determining developmental cues, auxin-related environmental factors, and hormones. In particular, the soil environmental factors are important as they maximize their absorption by modulating root hair development. These environmental factors affect the root hair developmental process by making use of diverse hormones. These hormonal factors interact with each other to modulate root hair development in which auxin appears to form the most intensive networks with the pathways from environmental factors and hormones. Moreover, auxin action for root hair development is genetically located immediately upstream of the root hair-morphogenetic genes. These observations suggest that auxin plays as an organizing node for environmental/hormonal pathways to modulate root hair growth.

No MeSH data available.