title: Pectins, ROS homeostasis and UV-B responses in plant roots.
abstract: Light from the sun contains far-red, visible and ultra violet (UV) wavelength regions. Almost all plant species have been evolved under the light environment. Interestingly, several photoreceptors, expressing both in shoots and roots, process the light information during the plant life cycle. Surprisingly, Arabidopsis root apices express besides the UVR8 UV-B receptor, also root-specific UV-B sensing proteins RUS1 and RUS2 linked to the polar cell-cell transport of auxin. In this mini-review, we focus on reactive oxygen species (ROS) signaling and possible roles of pectins internalized via endocytic vesicle recycling system in the root-specific UV-B perception and ROS homeostasis.
authors.affiliation: IZMB, University of Bonn, Kirschallee 1, 53115 Bonn, Germany.
authors.forename: Ken
authors.initials: K
authors.lastname: Yokawa
authors.affiliation: IZMB, University of Bonn, Kirschallee 1, 53115 Bonn, Germany. Electronic address: baluska@uni-bonn.de.
authors.forename: František
authors.initials: F
authors.lastname: Baluška
mesh_terms: D006706:Homeostasis / Q000528:radiation effects*; D010368:Pectins / Q000378:metabolism*; D018517:Plant Roots / Q000166:cytology / Q000378:metabolism* / Q000528:radiation effects*; D010944:Plants / Q000378:metabolism* / Q000528:radiation effects*; D017382:Reactive Oxygen Species / Q000378:metabolism*; D014466:Ultraviolet Rays
chemical_list: D017382:Reactive Oxygen Species; D010368:Pectins
keywords: Endocytosis; Pectins; Reactive oxygen species; Root; Root escape tropism; UV-B