Overexpression of apple spermidine synthase 1 (MdSPDS1) leads to significant salt tolerance in tomato plants

Neily, Mohamed Hichem; Baldet, Piérre; Arfaoui, Issam; Saito, Takeshi; Li, Qiuli; Asamizu, Erika; Matsukura, Chiaki; Moriguchi, Takaya; Ezura, Hiroshi

doi:10.5511/plantbiotechnology.10.1013a

Cited by 24 publications

(9 citation statements)

References 30 publications

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“…Spermidine is expected to assume important roles in tomato salt‐tolerance. Transgenic tomato plants overexpressing MdSPDS1 exhibited higher protection against oxidative stress in the presence of NaCl (Neily et al ) while exogenous application of Spd stabilized the photosynthetic apparatus and prevented thylakoid membrane photodamage induced by salt stress (Hu et al ). This may once again afford an advantage if plants are exposed to NaCl after SA treatment.…”

Section: Discussionmentioning

confidence: 99%

Salicylic acid differently impacts ethylene and polyamine synthesis in the glycophyte Solanum lycopersicum and the wild‐related halophyte Solanum chilense exposed to mild salt stress

Gharbi

Martínez

Benahmed

et al. 2016

Physiologia Plantarum

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This study aimed to determine the effects of exogenous application of salicylic acid (SA) on the toxic effects of salt in relation to ethylene and polyamine synthesis, and to correlate these traits with the expression of genes involved in ethylene and polyamine metabolism in two tomato species differing in their sensitivity to salt stress, Solanum lycopersicum cv Ailsa Craig and its wild salt-resistant relative Solanum chilense. In S. chilense, treatment with 125 mM NaCl improved plant growth, increased production of ethylene, endogenous salicylic acid and spermine. The production was related to a modification of expression of genes involved in ethylene and polyamine metabolism. In contrast, salinity decreased plant growth in S. lycopersicum without affecting endogenous ethylene, salicylic or polyamine concentrations. Exogenous application of salicylic acid at 0.01 mM enhanced shoot growth in both species and affected ethylene and polyamine production in S. chilense. Concomitant application of NaCl and salicylic acid improved osmotic adjustment, thus suggesting that salt and SA may act in synergy on osmolyte synthesis. However, the beneficial impact of exogenous application of salicylic acid was mitigated by salt stress since NaCl impaired endogenous SA accumulation in the shoot and salicylic acid did not improve plant growth in salt-treated plants. Our results thus revealed that both species respond differently to salinity and that salicylic acid, ethylene and polyamine metabolisms are involved in salt resistance in S. chilense.

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Section: Discussionmentioning

confidence: 99%

Salicylic acid differently impacts ethylene and polyamine synthesis in the glycophyte Solanum lycopersicum and the wild‐related halophyte Solanum chilense exposed to mild salt stress

Gharbi

Martínez

Benahmed

et al. 2016

Physiologia Plantarum

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“…Similarly, introduction of SAMDC cDNA from Tritordeum into Oryza sativa produced higher free polyamine content (Put, Spd, Spm), and a reduction in salt-induced shoot growth repression compared to non-transgenic rice plants (Roy and Wu, 2002). Ectopic expression of SPDS orthologs from different source plants also improved growth and survival of young plants in Arabidopsis, European pear (Pyrus communis L.) and tomato suggesting the importance of this enzyme to cope up with saline environmental condition across diverse plant species (Kasukabe et al, 2004;Wen et al, 2008;Neily et al, 2011). Exogenous application of polyamines has also been shown to have a significant effect on the plant, and has been suggested to be a potential strategy to increase plant survival during salt stress.…”

Section: Polyamines: One Of the Prominent Regulators In Ros Homeostasmentioning

confidence: 99%

Polyamines as redox homeostasis regulators during salt stress in plants

Saha

Brauer

Sengupta

et al. 2015

Front. Environ. Sci.

176

105

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The balance between accumulation of stress-induced polyamines and reactive oxygen species (ROS) is arguably a critical factor in plant tolerance to salt stress. Polyamines are compounds, which accumulate in plants under salt stress and help maintain cellular ROS homeostasis. In this review we first outline the role of polyamines in mediating salt stress responses through their modulation of redox homeostasis. The two proposed roles of polyamines in regulating ROS-as antioxidative molecules and source of ROS synthesis-are discussed and exemplified with recent studies. Second, the proposed function of polyamines as modulators of ion transport is discussed in the context of plant salt stress. Finally, we highlight the apparent connection between polyamine accumulation and programmed cell death induction during stress. Thus, polyamines have a complex functional role in regulating cellular signaling and metabolism during stress. By focusing future efforts on how polyamine accumulation and turnover is regulated, research in this area may provide novel targets for developing stress tolerance.

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“…Third, and maybe the strongest line of evidence came from the experiments with the gain- or loss-of-the-function mutants. Whereas overexpression of enzymes of the PA biosynthesis like arginine decarboxylase, ADC (Roy and Wu, 2001 ), S-adenosylmethionine synthetase, SAMDC (Waie and Rajam, 2003 ; Qi et al, 2010 ), and spermidine synthase, SPDS (Neily et al, 2011 ) resulted in improved salt tolerance, the loss-of-function mutant of PA biosynthesis genes resulted in reduced stress tolerance in several species (Fariduddin et al, 2013 ). In Arabidopsis, loss-of-the-function mutants in the synthesis of Spm and thermospermine accumulated more Na + and performed worse than wild type in survival experiments (Alet et al, 2012 ).…”

Section: Stress-induced Changes In Polyamine Content and Their Role Imentioning

confidence: 99%

Polyamines control of cation transport across plant membranes: implications for ion homeostasis and abiotic stress signaling

2014

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Polyamines are unique polycationic metabolites, controlling a variety of vital functions in plants, including growth and stress responses. Over the last two decades a bulk of data was accumulated providing explicit evidence that polyamines play an essential role in regulating plant membrane transport. The most straightforward example is a blockage of the two major vacuolar cation channels, namely slow (SV) and fast (FV) activating ones, by the micromolar concentrations of polyamines. This effect is direct and fully reversible, with a potency descending in a sequence Spm4+ > Spd3+ > Put2+. On the contrary, effects of polyamines on the plasma membrane (PM) cation and K+-selective channels are hardly dependent on polyamine species, display a relatively low affinity, and are likely to be indirect. Polyamines also affect vacuolar and PM H+ pumps and Ca2+ pump of the PM. On the other hand, catabolization of polyamines generates H2O2 and other reactive oxygen species (ROS), including hydroxyl radicals. Export of polyamines to the apoplast and their oxidation there by available amine oxidases results in the induction of a novel ion conductance and confers Ca2+ influx across the PM. This mechanism, initially established for plant responses to pathogen attack (including a hypersensitive response), has been recently shown to mediate plant responses to a variety of abiotic stresses. In this review we summarize the effects of polyamines and their catabolites on cation transport in plants and discuss the implications of these effects for ion homeostasis, signaling, and plant adaptive responses to environment.

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Overexpression of apple spermidine synthase 1 (MdSPDS1) leads to significant salt tolerance in tomato plants

Cited by 24 publications

References 30 publications

Salicylic acid differently impacts ethylene and polyamine synthesis in the glycophyte Solanum lycopersicum and the wild‐related halophyte Solanum chilense exposed to mild salt stress

Salicylic acid differently impacts ethylene and polyamine synthesis in the glycophyte Solanum lycopersicum and the wild‐related halophyte Solanum chilense exposed to mild salt stress

Polyamines as redox homeostasis regulators during salt stress in plants

Polyamines control of cation transport across plant membranes: implications for ion homeostasis and abiotic stress signaling

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