caa a22 4500 445840110 CHVBK 20180317145341.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s00709-010-0243-4 doi (NATIONALLICENCE)springer-10.1007/s00709-010-0243-4 Redox regulation of intercellular transport [Elektronische Daten] [Yoselin Benitez-Alfonso, David Jackson, Andy Maule] Plant cells communicate with each other via plasmodesmata (PDs) in order to orchestrate specific responses to environmental and developmental cues. At the same time, environmental signals regulate this communication by promoting changes in PD structure that modify symplastic permeability and, in extreme cases, isolate damaged cells. Reactive oxygen species (ROS) are key messengers in plant responses to a range of biotic and abiotic stresses. They are also generated during normal metabolism, and mediate signaling pathways that modulate plant growth and developmental transitions. Recent research has suggested the participation of ROS in the regulation of PD transport. The study of several developmental and stress-induced processes revealed a co-regulation of ROS and callose (a cell wall polymer that regulates molecular flux through PDs). The identification of Arabidopsis mutants simultaneously affected in cell redox homeostasis and PD transport, and the histological detection of hydrogen peroxide and peroxidases in the PDs of the tomato vascular cambium provide new information in support of this novel regulatory mechanism. Here, we describe the evidence that supports a role for ROS in the regulation of callose deposition and/or in the formation of secondary PD, and discuss the potential importance of this mechanism during plant growth or defense against environmental stresses. Springer-Verlag, 2010 Reactive oxygen species nationallicence Plasmodesmata nationallicence Intercellular transport nationallicence Cell redox homeostasis nationallicence Oxidative stress nationallicence Benitez-Alfonso Yoselin John Innes Centre, Norwich Research Park, Colney Lane, NR4 7UH, Norwich, Norfolk, UK aut Jackson David Cold Spring Harbor Laboratory, 1 Bungtown road, 11724, Cold Spring Harbor, NY, USA aut Maule Andy John Innes Centre, Norwich Research Park, Colney Lane, NR4 7UH, Norwich, Norfolk, UK aut Protoplasma Springer Vienna 248/1(2011-01-01), 131-140 0033-183X 248:1<131 2011 248 709 https://doi.org/10.1007/s00709-010-0243-4 text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00709-010-0243-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Benitez-Alfonso Yoselin John Innes Centre, Norwich Research Park, Colney Lane, NR4 7UH, Norwich, Norfolk, UK aut NATIONALLICENCE 700 1- Jackson David Cold Spring Harbor Laboratory, 1 Bungtown road, 11724, Cold Spring Harbor, NY, USA aut NATIONALLICENCE 700 1- Maule Andy John Innes Centre, Norwich Research Park, Colney Lane, NR4 7UH, Norwich, Norfolk, UK aut NATIONALLICENCE 773 0- Protoplasma Springer Vienna 248/1(2011-01-01), 131-140 0033-183X 248:1<131 2011 248 709 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer