Vascular and nonvascular transmission of systemic reactive oxygen signals during wounding and heat stress
![Thumbnail](/xmlui/bitstream/handle/10234/195272/77061_Zandalinas_2021.pdf.jpg?sequence=5&isAllowed=y)
Visualitza/
Metadades
Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2508
comunitat-uji-handle3:10234/6999
comunitat-uji-handle4:
INVESTIGACIONMetadades
Títol
Vascular and nonvascular transmission of systemic reactive oxygen signals during wounding and heat stressData de publicació
2021-04-05Editor
American Society of Plant BiologistsISSN
0032-0889; 1532-2548Cita bibliogràfica
Sara I Zandalinas, Ron Mittler, Vascular and nonvascular transmission of systemic reactive oxygen signals during wounding and heat stress, Plant Physiology, Volume 186, Issue 3, July 2021, Pages 1721–1733Tipus de document
info:eu-repo/semantics/articleVersió
info:eu-repo/semantics/submittedVersionParaules clau / Matèries
Resum
Sensing of heat, high light (HL), or mechanical injury by a single leaf of a plant results in the activation of different systemic signals that reach systemic tissues within minutes and trigger systemic acquired ... [+]
Sensing of heat, high light (HL), or mechanical injury by a single leaf of a plant results in the activation of different systemic signals that reach systemic tissues within minutes and trigger systemic acquired acclimation (SAA) or systemic wound responses (SWRs), resulting in a heightened state of stress readiness of the entire plant. Among the different signals associated with rapid systemic responses to stress in plants are electric, calcium, and reactive oxygen species (ROS) waves. These signals propagate from the stressed or injured leaf to the rest of the plant through the plant vascular bundles, and trigger SWRs and SAA in systemic tissues. However, whether they can propagate through other cell types, and whether or not they are interlinked, remain open questions. Here we report that in response to wounding or heat stress (HS), but not HL stress, the ROS wave can propagate through mesophyll cells of Arabidopsis (Arabidopsis thaliana). Moreover, we show that ROS production by mesophyll cells during these stresses is sufficient to restore SWR and SAA transcript accumulation in systemic leaves, as well as SAA to HS (but not HL). We further show that propagation of the ROS wave through mesophyll cells could contribute to systemic signal integration during HL and HS stress combination. Our findings reveal that the ROS wave can propagate through tissues other than the vascular bundles of plants, and that different stresses can trigger different types of systemic signals that propagate through different cell layers and induce stress-specific systemic responses. [-]
Publicat a
Plant Physiology, Volume 186, Issue 3, July 2021Entitat finançadora
National Science Foundation | Interdisciplinary Plant Group | University of Missouri
Codi del projecte o subvenció
IOS- 20 1353886 | MCB-1936590 | IOS-1932639
Drets d'accés
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
Apareix a les col.leccions
- CAMN_Articles [568]