Reactive Oxygen Species and Gibberellin Acid Mutual Induction to Regulate Tobacco Seed Germination

Zhan, Li; Gao, Yue; Zhang, Yuchan; Lin, Chi-Chung; Gong, Dongting; Guan, Yajing; Hu, Jin

doi:10.3389/fpls.2018.01279

Cited by 41 publications

(26 citation statements)

References 71 publications

(88 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In one way, increase in ROS content, which is beneficial for germination, is associated with alteration of synthesis and signalling of ABA, the hormone which represses germination. It has been demonstrated that H 2 O 2 accumulation in germinating seeds was associated with ABA degradation probably trough an activation of ABA-8-hydroxylase, an ABA catalytic enzyme [26,30,33,53,79] even though a direct oxidation of ABA cannot be excluded [51,95,96]. ABA being regulating germination by its antagonistic interaction with GA it is worth noting that ROS have been reported to stimulate GA biosynthesis through a transcriptional effect [28,32,33,53,79].…”

Section: Ros Crosstalk With Germination Signalling Pathwaysmentioning

confidence: 99%

The signalling role of ROS in the regulation of seed germination and dormancy

Bailly

2019

Biochemical Journal

232

185

View full text Add to dashboard Cite

Reactive oxygen species (ROS) are versatile compounds which can have toxic or signalling effects in a wide range living organisms, including seeds. They have been reported to play a pivotal role in the regulation of seed germination and dormancy but their mechanisms of action are still far from being fully understood. In this review, we sum-up the major findings that have been carried out this last decade in this field of research and which altogether shed a new light on the signalling roles of ROS in seed physiology. ROS participate in dormancy release during seed dry storage through the direct oxidation of a subset of biomolecules. During seed imbibition, the controlled generation of ROS is involved in the perception and transduction of environmental conditions that control germination. When these conditions are permissive for germination, ROS levels are maintained at a level which triggers cellular events associated with germination, such as hormone signalling. Here we propose that the spatiotemporal regulation of ROS production acts in concert with hormone signalling to regulate the cellular events involved in cell expansion associated with germination.

show abstract

Section: Ros Crosstalk With Germination Signalling Pathwaysmentioning

confidence: 99%

The signalling role of ROS in the regulation of seed germination and dormancy

Bailly

2019

Biochemical Journal

232

185

View full text Add to dashboard Cite

show abstract

“…On the other hand, ABA was shown to prevent the accumulation of ROS within the embryonic axis of the seeds [33]. Currently, the interactions between ROS and ABA/GA are still under debate [36]. The role of ROS in seed germination is dual and is defined as the oxidative window of germination [37].…”

Section: Seed Germinationmentioning

confidence: 99%

Cadmium and Plant Development: An Agony from Seed to Seed

Huybrechts

Cuypers

Deckers

et al. 2019

IJMS

138

View full text Add to dashboard Cite

Anthropogenic pollution of agricultural soils with cadmium (Cd) should receive adequate attention as Cd accumulation in crops endangers human health. When Cd is present in the soil, plants are exposed to it throughout their entire life cycle. As it is a non-essential element, no specific Cd uptake mechanisms are present. Therefore, Cd enters the plant through transporters for essential elements and consequently disturbs plant growth and development. In this review, we will focus on the effects of Cd on the most important events of a plant’s life cycle covering seed germination, the vegetative phase and the reproduction phase. Within the vegetative phase, the disturbance of the cell cycle by Cd is highlighted with special emphasis on endoreduplication, DNA damage and its relation to cell death. Furthermore, we will discuss the cell wall as an important structure in retaining Cd and the ability of plants to actively modify the cell wall to increase Cd tolerance. As Cd is known to affect concentrations of reactive oxygen species (ROS) and phytohormones, special emphasis is put on the involvement of these compounds in plant developmental processes. Lastly, possible future research areas are put forward and a general conclusion is drawn, revealing that Cd is agonizing for all stages of plant development.

show abstract

“…Seed dormancy and germination are complex processes regulated mainly by the plant hormones gibberellins (GAs) and abscisic acid (ABA). Environmental and endogenous factors might control the abundance of signaling molecules which determine the ABA/GAs ratio, thus elevated ABA concentration within seeds triggers seed dormancy while high GAs level induces germination (Bailly et al, 2008;Graeber et al, 2012;Li et al, 2018). There are different definitions and classifications of seed dormancy; a delay or fail to germinate under favorable conditions is a generally accepted definition (Arc et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Long-Chain Hydrocarbons (C21, C24, and C31) Released by Bacillus sp. MH778713 Break Dormancy of Mesquite Seeds Subjected to Chromium Stress

et al. 2020

View full text Add to dashboard Cite

Volatile organic compounds (VOCs) produced by rhizobacteria have been proven to stimulate plant growth during germination and seedling stages. However, the modulating effect of bacterial volatiles on the germination of seeds subjected to heavy metal stress is scarcely studied. In this work, the ability of volatiles released by Bacillus sp. MH778713 to induce seed dormancy breakage in Prosopis laevigata and Arabidopsis thaliana seeds were examined. The minimal inhibitory concentration of chromium (Cr) VI that prevents seed germination of P. laevigata and A. thaliana on water-Cr-agar plates was 2500 and 100 mg L −1 , respectively. Remarkably, partitioned Petri-dish co-cultivation of Bacillus sp. MH778713 and plant seeds under Cr-stress showed the beneficial effect of volatiles emitted by Bacillus sp. MH778713, helping plant seeds to overcome Cr-stress. Among the metabolites emitted by Bacillus sp. MH778713, octadecane, heneicosane, 2,4-di-tert-butylphenol, hexadecane, eicosane, octacosane, and tetratriacontane were the most abundant. To confirm that these long-chain compounds produced by Bacillus sp. MH778713 could be responsible for the seed dormancy breakage, high pure organic compounds (2,4-di-tert-butylphenol, heneicosane, hentriacontane, and tetracosane) were used directly in germination assays of P. laevigata and A. thaliana seeds instead of volatiles emitted by Bacillus sp. MH778713. All organic compounds allowed Prosopis and Arabidopsis seeds to overcome Cr-toxicity and germinate. The results of this study provide new insight into the role of long-chain bacterial compounds produced by Bacillus sp. MH778713 as triggers of seed abiotic stress tolerance, surmounting chromium stress and stimulating seedling development.

show abstract

Reactive Oxygen Species and Gibberellin Acid Mutual Induction to Regulate Tobacco Seed Germination

Cited by 41 publications

References 71 publications

The signalling role of ROS in the regulation of seed germination and dormancy

The signalling role of ROS in the regulation of seed germination and dormancy

Cadmium and Plant Development: An Agony from Seed to Seed

Long-Chain Hydrocarbons (C21, C24, and C31) Released by Bacillus sp. MH778713 Break Dormancy of Mesquite Seeds Subjected to Chromium Stress

Contact Info

Product

Resources

About