Ethylene negatively regulates transcript abundance of ROP-GAP rheostat-encoding genes and affects apoplastic reactive oxygen species homeostasis in epicarps of cold stored apple fruits

Ethylene negatively regulates transcript abundance of ROP-GAP rheostat-encoding genes and affects apoplastic reactive oxygen species homeostasis in epicarps of cold stored apple fruits

© The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 66(2015), 22 vom: 09. Dez., Seite 7255-70
1. Verfasser: Zermiani, Monica (VerfasserIn)
Weitere Verfasser: Zonin, Elisabetta, Nonis, Alberto, Begheldo, Maura, Ceccato, Luca, Vezzaro, Alice, Baldan, Barbara, Trentin, Annarita, Masi, Antonio, Pegoraro, Marco, Fadanelli, Livio, Teale, William, Palme, Klaus, Quintieri, Luigi, Ruperti, Benedetto
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Abiotic stress NADPH oxidase RBOH ROP GTPases ROS homeostasis. ethylene fruit senescence ionotropic glutamate receptors mehr... Ethylenes Reactive Oxygen Species 91GW059KN7 Hydrogen Peroxide BBX060AN9V GTP Phosphohydrolases EC 3.6.1.-
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520 |a © The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology. 
520 |a Apple (Malus×domestica Borkh) fruits are stored for long periods of time at low temperatures (1 °C) leading to the occurrence of physiological disorders. 'Superficial scald' of Granny Smith apples, an economically important ethylene-dependent disorder, was used as a model to study relationships among ethylene action, the regulation of the ROP-GAP rheostat, and maintenance of H2O2 homeostasis in fruits during prolonged cold exposure. The ROP-GAP rheostat is a key module for adaptation to low oxygen in Arabidopsis through Respiratory Burst NADPH Oxidase Homologs (RBOH)-mediated and ROP GTPase-dependent regulation of reactive oxygen species (ROS) homeostasis. Here, it was shown that the transcriptional expression of several components of the apple ROP-GAP machinery, including genes encoding RBOHs, ROPs, and their ancillary proteins ROP-GEFs and ROP-GAPs, is coordinately and negatively regulated by ethylene in conjunction with the progressive impairment of apoplastic H2O2 homeostatic levels. RNA sequencing analyses showed that several components of the known ROP- and ROS-associated transcriptional networks are regulated along with the ROP-GAP rheostat in response to ethylene perception. These findings may extend the role of the ROP-GAP rheostat beyond hypoxic responses and suggest that it may be a functional regulatory node involved in the integration of ethylene and ROS signalling pathways in abiotic stress 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Abiotic stress 
650 4 |a NADPH oxidase 
650 4 |a RBOH 
650 4 |a ROP GTPases 
650 4 |a ROS homeostasis. 
650 4 |a ethylene 
650 4 |a fruit senescence 
650 4 |a ionotropic glutamate receptors 
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650 7 |a Reactive Oxygen Species  |2 NLM 
650 7 |a ethylene  |2 NLM 
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700 1 |a Zonin, Elisabetta  |e verfasserin  |4 aut 
700 1 |a Nonis, Alberto  |e verfasserin  |4 aut 
700 1 |a Begheldo, Maura  |e verfasserin  |4 aut 
700 1 |a Ceccato, Luca  |e verfasserin  |4 aut 
700 1 |a Vezzaro, Alice  |e verfasserin  |4 aut 
700 1 |a Baldan, Barbara  |e verfasserin  |4 aut 
700 1 |a Trentin, Annarita  |e verfasserin  |4 aut 
700 1 |a Masi, Antonio  |e verfasserin  |4 aut 
700 1 |a Pegoraro, Marco  |e verfasserin  |4 aut 
700 1 |a Fadanelli, Livio  |e verfasserin  |4 aut 
700 1 |a Teale, William  |e verfasserin  |4 aut 
700 1 |a Palme, Klaus  |e verfasserin  |4 aut 
700 1 |a Quintieri, Luigi  |e verfasserin  |4 aut 
700 1 |a Ruperti, Benedetto  |e verfasserin  |4 aut 
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