Hence the aim of this review is to consider the dual roles of ROS in seed physiology: (1) as positive signalling molecules in seed germination the alleviation of seed dormancy and in pathogen-induced protection and (2) as cytotoxic or detrimental molecules Mar 01 2019The effects of the ROS pharmacology on dormancy demonstrated MV-stimulated dormancy alleviation and germination delay by inhibitors of superoxide generation confirming the link between the seed cell polarization and its ability to germinate reinforcing the hypothesis of a role in regulation of PM H +-ATPase during dormancy alleviation

"Nitrosative Door" in Seed Dormancy Alleviation and

Nov 24 2014Krasuska U Ciacka K Andryka-Dudek P Bogatek R Gniazdowska A (2015) "Nitrosative Door" in Seed Dormancy Alleviation and Germination In: Gupta K Igamberdiev A (eds) Reactive Oxygen and Nitrogen Species Signaling and Communication in Plants Signaling and Communication in Plants vol 23 Springer Cham First Online 24 November 2014

Reactive oxygen species (ROS) have been proposed to be key players in seed germination and dormancy (Bailly 2004 Oracz et al 2007 Bailly et al 2008 El-Maarouf-Bouteau and Bailly 2008) It appears that seed germination occurs when the seed ROS content is enclosed within an oxidative window that allows ROS signaling but not ROS damage

Targeted mRNA Oxidation Regulates Sunflower Seed Dormancy Alleviation during Dry After-Ripening C W Jeremie Bazin a Nicolas Langlade b Patrick Vincourt b Sandrine Arribat c Sandrine Balzergue c Hayat El-Maarouf-Bouteau a 1 and Christophe Baillya 1 2 a UR5 EAC7180 Centre National de la Recherche Scientifique Universite Pierre et Marie Curie UniversiteParis 06 75005 Paris

Hence the aim of this review is to consider the dual roles of ROS in seed physiology: (1) as positive signalling molecules in seed germination the alleviation of seed dormancy and in pathogen-induced protection and (2) as cytotoxic or detrimental molecules

In order to assess the relationship between mRNA oxidation and dormancy alleviation dormant seeds from another seed batch were stored at 20C and under four RH ranging from 5 to 75% for 30 d Figure 5A shows that dormancy alleviation at 20C was faster when seeds were stored under 50 5% RH than when they were stored under 75 and 33% RH As

ROS Signaling in Seed Dormancy Alleviation

Reactive oxygen species have been suggested to play a signaling role in seed dormancy alleviation When sunflower seeds become able to fully germinate during dry after-ripening they accumulate high amount of hydrogen peroxide and exhibit a low detoxifying ability through catalase resulting from the decrease in CATA1 transcript

Sep 15 2016Oracz K El-Maarouf-Bouteau H Kranner I Bogatek R Corbineau F Bailly C The mechanisms involved in seed dormancy alleviation by hydrogen cyanide unravel the role of reactive oxygen species as key factors of cellular signaling during germination Plant Physiol 2009 150(1):494–505

Mar 21 2017Seed dormancy is one of the adaptive responses in the plant life cycle and an important agronomic trait Reactive oxygen species (ROS) release seed dormancy and promote seed germination in several cereal crops however the key regulatory mechanism of ROS-mediated seed dormancy and germination remains controversial Here we focused on the relationship between hydrogen peroxide (a ROS

Oct 01 2007Reactive oxygen species have been suggested to play a signaling role in seed dormancy alleviation When sunflower seeds become able to fully germinate during dry after-ripening they accumulate high amount of hydrogen peroxide and exhibit a low detoxifying ability through catalase resulting from the decrease in CATA1 transcript

[47] Oracz K El-Maarouf-Bouteau H Kranner I Bogatek R Corbineau F Bailly C 2009 The mechanisms involved in seed dormancy alleviation by hydrogen cyanide unravel the role of reactive oxygen species as key factors of cellular signaling during germination

Jul 27 2016The mechanisms involved in seed dormancy alleviation by hydrogen cyanide unravel the role of reactive oxygen species as key factors of cellular signaling during germination Plant Physiol 150 494–505 doi: 10 1104/pp 109 138107

Jun 15 2016The mechanisms involved in seed dormancy alleviation by hydrogen cyanide unravel the role of reactive oxygen species as key actors of cellular signalling during germination Plant Physiol 150 494–505 10 1104/pp 109 138107 [Google Scholar]

Jun 29 2013While authors have traditionally emphasized the deleterious effects of reactive oxygen species (ROS) on seed biology their role as signaling molecules during seed dormancy alleviation and germination is now the focus of many studies around the world Over the last few years studies using "-omics" technologies together with physiological and biochemical approaches have revealed that seed

Full article: ROS Signaling in Seed Dormancy Alleviation

Sep 01 2007Reactive oxygen species have been suggested to play a signaling role in seed dormancy alleviation When sunflower seeds become able to fully germinate during dry after-ripening they accumulate high amount of hydrogen peroxide and exhibit a low detoxifying ability through catalase resulting from the decrease in CATA1 transcript

Sep 01 2007Reactive oxygen species have been suggested to play a signaling role in seed dormancy alleviation When sunflower seeds become able to fully germinate during dry after-ripening they accumulate high amount of hydrogen peroxide and exhibit a low detoxifying ability through catalase resulting from the decrease in CATA1 transcript ROS accumulation entails oxidative modification of

Moreover is demonstrated for the first time that the mechanisms involved in seed dormancy alleviation by hydrogen cyanide unravel the role of reactive oxygen species as key factors of cellular signaling during germination (Figure 4) The complete results are presented and discussed in the following publications Oracz et al 2007a 2008 2009

reactive oxygen species seed germination Introduction Reactive oxygen species (ROS) act as signal molecules in plants regulating growth and development programmed cell death hor-mone signaling and responses to biotic and abiotic stresses 1–4 ROSplayakeyroleinseeddormancy after-ripening andgermina-

Hence the aim of this review is to consider the dual roles of ROS in seed physiology: (1) as positive signalling molecules in seed germination the alleviation of seed dormancy and in pathogen-induced protection and (2) as cytotoxic or detrimental molecules

distribution of germination over a period of time The alleviation of seed dormancy is controlled by environmental factors (e g light and temperature) and endogenous cues (e g ROS and phytohormones) The role of abscisic acid (ABA) in dormancy onset during seed development is well documented by genetic and physiological studies

Mar 15 2013Reactive oxygen (ROS) and nitrogen (RNS) species play a signaling role in seed dormancy alleviation and germination Their action may be described by the oxidative/nitrosative "window/door" ROS accumulation in embryos could lead to oxidative modification of

Sep 01 2007Reactive oxygen species have been suggested to play a signaling role in seed dormancy alleviation When sunflower seeds become able to fully germinate during dry after-ripening they accumulate high amount of hydrogen peroxide and exhibit a low detoxifying ability through catalase resulting from the decrease in CATA1 transcript

Dec 23 2019Seed dormancy is a prevailing condition in which seeds are unable to germinate even under favorable environmental conditions Harvested Brassica oleracea (Chinese cabbage) seeds are dormant and normally germinate (poorly) at 21 C This study investigated the connections between ethylene nitric oxide (NO) and karrikin 1 (KAR1) in the dormancy release of secondary dormant