Effects of exogenous spermine on sweet sorghum during germination under salinity

Chai, Yanwei; Jiang, Chuntao; Shi, Lei; Shi, Ting; Gu, Wenhui

doi:10.1007/s10535-010-0023-1

Cited by 52 publications

(29 citation statements)

References 23 publications

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“…2c). Increase in activity of CAT under conditions of salt stress is in consonance with several earlier observations (Chai et al 2010;Sheokand et al 2008). POD and CAT showed similar level of activity in the present study.…”

Section: Discussionsupporting

confidence: 92%

“…Transgenic technology is used to develop crop plants tolerant to abiotic stress (Lu et al 2007;Sairam and Tyagi 2004;Sahi et al 2006). Exogenous application of various compounds could help to increase plants resistance to salt stress, such as mannitol in wheat (Seckin et al 2009), spermine in sweet sorghum (Chai et al 2010), nitric oxide, and putrescine in chickpea (Sheokand et al 2008), salicylic acid (SA) in lentil (Misra and Saxena 2009), calcium chloride, and gibberllic acid in linseed (Khan et al 2010), and ascorbic acid in Vicia faba (Younis et al 2010). Conventional breeding is also a major strategy to improve the salt tolerance (Phang et al 2008).…”

Section: Introductionmentioning

confidence: 99%

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Alleviation of exogenous oligochitosan on wheat seedlings growth under salt stress

et al. 2011

Protoplasma

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Hydroponic experiments were carried out to study the role of oligochitosan in enhancing wheat (Triticum aestivum L.) resistance to salt stress. Data were collected on plant biomass, chlorophyll content, photosynthetic rate (P (n)), stomatal conductance (g (s)), proline content, antioxidant enzyme activities, and malondialdehyde (MDA) content. Under 150 mM salt stress, plant growth was significantly inhibited. Shoot length, root length, and dry weight were sharply reduced by 26%, 31%, and 20%, respectively, of the control. Superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) were increased by 28%, 13%, and 26%, respectively, of the control and MDA content largely accumulated, which was 1.5-fold of the control. However, 0.0625% oligochitosan pretreatment alleviated the adverse effects of salt stress, which was reflected by increasing root length, shoot length, dry weight, chlorophyll content, P (n,) and g (s). Furthermore, it also showed that oligochitosan pretreatment significantly increased antioxidant enzyme (SOD, CAT and POD) activities, and reduced MDA content in leaves. Meanwhile, the accumulation of proline was markedly accelerated. The results indicated that oligochitosan pretreatment ameliorated the adverse effects and partially protected the seedlings from salt stress during the following growth period.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Alleviation of exogenous oligochitosan on wheat seedlings growth under salt stress

et al. 2011

Protoplasma

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“…Chai et al . () reported that exogenous Spd can alleviate salt stress in sorghum. In the present study, it was also found that exogenous Spd partially alleviated salt‐induced damage.…”

Section: Discussionmentioning

confidence: 99%

Silicon‐mediated changes in polyamines participate in silicon‐induced salt tolerance in Sorghum bicolor L.

Yin

Wang

Tanaka

et al. 2015

Plant Cell & Environment

181

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Silicon (Si) is generally considered a beneficial element for the growth of higher plants, especially under stress conditions, but the mechanisms remain unclear. Here, we tested the hypothesis that Si improves salt tolerance through mediating important metabolism processes rather than acting as a mere mechanical barrier. Seedlings of sorghum (Sorghum bicolor L.) growing in hydroponic culture were treated with NaCl (100 mm) combined with or without Si (0.83 mm). The result showed that supplemental Si enhanced sorghum salt tolerance by decreasing Na(+) accumulation. Simultaneously, polyamine (PA) levels were increased and ethylene precursor (1-aminocyclopropane-1-carboxylic acid: ACC) concentrations were decreased. Several key PA synthesis genes were up-regulated by Si under salt stress. To further confirm the role of PA in Si-mediated salt tolerance, seedlings were exposed to spermidine (Spd) or a PA synthesis inhibitor (dicyclohexylammonium sulphate, DCHA) combined with salt and Si. Exogenous Spd showed similar effects as Si under salt stress whereas exogenous DCHA eliminated Si-enhanced salt tolerance and the beneficial effect of Si in decreasing Na(+) accumulation. These results indicate that PAs and ACC are involved in Si-induced salt tolerance in sorghum and provide evidence that Si plays an active role in mediating salt tolerance.

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“…In the membrane lipids, the double bonds of PUFA moieties are targets of ROS-mediated peroxidation, which damage the membrane structure. The increase in lipid peroxidation has been considered an indicator of oxidative damage in leaves of several plant species subjected to salt stress such as cowpea (Cavalcanti et al 2004(Cavalcanti et al , 2007, rice (Demiral and Türkan 2005), maize (Azevedo-Neto et al 2006) and sorghum (Chai et al 2010). Surprisingly, however, the lipid peroxidation decreased in salt-stressed cashew leaves as indicated by reduction in the TBARS and LPO contents.…”

Section: ⎯⎯⎯⎯mentioning

confidence: 99%

Partial oxidative protection by enzymatic and non-enzymatic components in cashew leaves under high salinity

Ferreira‐Silva¹,

Voigt²,

Silva³

et al. 2012

Biol. plant.

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The work evaluated the role of enzymatic and non-enzymatic antioxidants in cashew (Anacardium occidentale) leaves under 0, 50, 100, 150 and 200 mM NaCl. Salt stress increased protein oxidation and decreased the lipid peroxidation, indicating that lipids are less susceptible to oxidative damage. The superoxide dismutase (SOD) activity was not changed, ascorbate peroxidase (APX) activity steadily decreased while the catalase (CAT) activity strongly increased with the increasing NaCl concentration. High salinity also induced alterations in the ascorbate (AsA) and glutathione (GSH) redox state. The salt resistance in cashew may be associated with maintaining of SOD activity and upregulation of CAT activity in concert with the AsA and GSH antioxidants.

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Effects of exogenous spermine on sweet sorghum during germination under salinity

Cited by 52 publications

References 23 publications

Alleviation of exogenous oligochitosan on wheat seedlings growth under salt stress

Alleviation of exogenous oligochitosan on wheat seedlings growth under salt stress

Silicon‐mediated changes in polyamines participate in silicon‐induced salt tolerance in Sorghum bicolor L.

Partial oxidative protection by enzymatic and non-enzymatic components in cashew leaves under high salinity

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