Strigolactone signaling in root development and phosphate starvation

Strigolactones (SLs), have recently been recognized as phytohormone involve in orchestrating shoot and root architecture. In, roots SLs positively regulate root hair length and density, suppress lateral root formation and promote primary root meristem cell number. The biosynthesis and exudation of S...

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Bibliographic Details
Published in:Plant signaling & behavior 2015-07, Vol.10 (7), p.e1045174-e1045174
Main Authors: Kumar, Manoj, Pandya-Kumar, Nirali, Kapulnik, Yoram, Koltai, Hinanit
Format: Article
Language:English
Subjects:
actin
Actins - metabolism
Lactones - metabolism
Mini-Review
phosphate
Phosphates - metabolism
PIN2 polarization
Plant Proteins - metabolism
Plant Roots - growth & development
Plant Roots - metabolism
Signal Transduction
Strigolactone
vesicle trafficking
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Summary:Strigolactones (SLs), have recently been recognized as phytohormone involve in orchestrating shoot and root architecture. In, roots SLs positively regulate root hair length and density, suppress lateral root formation and promote primary root meristem cell number. The biosynthesis and exudation of SLs increases under low phosphate level to regulate root responses. This hormonal response suggests an adaptation strategy of plant to optimize growth and development under nutrient limitations. However, little is known on signal-transduction pathways associated with SL activities. In this review, we outline the current knowledge on SL biology by describing their role in the regulation of root development. Also, we discuss the recent findings on the non-cell autonomous signaling of SLs, that involve PIN polarization, vesicle trafficking, changes in actin architecture and dynamic in response to phosphate starvation.
ISSN:1559-2316
1559-2324
1559-2324
DOI:10.1080/15592324.2015.1045174