Salt priming improved salt tolerance in sweet sorghum by enhancing osmotic resistance and reducing root Na+ uptake

Ke, Yan; Xu, Hongwei; Cao, Wei; Chen, Xiaobing

doi:10.1007/s11738-015-1957-x

Cited by 25 publications

(16 citation statements)

References 56 publications

(68 reference statements)

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“…SA can be used to promote plant growth under stress and non-stress conditions (Noreen et al 2009). As previously mentioned, salt priming can improve salt tolerance in sweet sorghum by enhancing osmotic resistance and reducing root Na + uptake (Yan et al 2015).…”

Section: Research On Agronomic Technologies For Enhancing Saline-alkamentioning

confidence: 82%

“…The decreases in P n and T r under salt stress were found to be alleviated by silicon application (Liu et al 2015). Sorghum plants pretreated with salt maintained a higher P n during salt stress, suggesting that salt priming can enhance salt tolerance (Yan et al 2015).…”

Section: Photosynthesis and Fluorescence Propertiesmentioning

confidence: 90%

“…Foliar application of the growth regulator, salicylic acid (SA), was found to increase leaf SOD and POD activities (Noreen et al 2009). Yan et al (2015) reported that salt priming enhanced osmotic resistance, as proline levels and relative water content in the leaf were higher in pretreated plants under salt stress. Salt priming can alleviate salt-induced oxidative damage; however, it is not by improving antioxidant protection due to lower increase in leaf MDA content and no extra induction occurs on APX, CAT, SOD, ascorbic acid, and reduced glutathione in pretreated plants.…”

Section: Membrane Peroxidation and Protective Enzyme Activitymentioning

confidence: 99%

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Research progress on plant tolerance to soil salinity and alkalinity in sorghum

Rui-dong

2018

Journal of Integrative Agriculture

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Sorghum is an important source of food, feed and brewing raw material, and is expected to be a promising bioenergy crop. Sorghum is well known for its strong resistance to abiotic stress and wide adaptability, and salt tolerance is one of its main characteristics. Increasing sorghum planting acreage on saline-alkalien land is one way to effectively use this kind of marginal soil. In this paper, domestic and overseas research on plant tolerance to soil salinity and alkalinity in sorghum, including salt-tolerant genetics and breeding, physiology, cultivation, and identification of tolerant germplasms, are reviewed. Suggestions for further studies on salinity and alkalinity tolerance in sorghum are given, and the prospects for sorghum production in saline-alkalien land are discussed.

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Section: Research On Agronomic Technologies For Enhancing Saline-alkamentioning

confidence: 82%

Section: Photosynthesis and Fluorescence Propertiesmentioning

confidence: 90%

Section: Membrane Peroxidation and Protective Enzyme Activitymentioning

confidence: 99%

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Research progress on plant tolerance to soil salinity and alkalinity in sorghum

Rui-dong

2018

Journal of Integrative Agriculture

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“…For example, wheat (Triticum aestivum) exhibited improved drought tolerance after initial drought priming (Wang et al, 2014). Accumulating evidence has revealed that plants can also be primed for salt tolerance after seeds or seedlings are treated with salt (Yan et al, 2015;Pandolfi et al, 2016;Ali et al, 2017;Berhane and Chala, 2017). Although the mechanisms underlying saltinduced priming remain unclear, compared with naive (nonprimed) ones, primed plants show increased levels of organic solutes, such as proline (Pro) and sugars (Sivritepe et al, 2003), a higher photosynthetic rate (Yan et al, 2015), and increased abilities to sequester vacuolar sodium in the leaves and maintain low sodium content in the roots (Sivritepe et al, 2003;Nakaune et al, 2012;Yan et al, 2015;Pandolfi et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Dodder-transmitted mobile signals prime host plants for enhanced salt tolerance

Zhang

Liu

et al. 2019

Journal of Experimental Botany

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The dodders (Cuscuta spp.) are a genus of shoot parasites. In nature, a dodder often simultaneously parasitizes two or more neighboring hosts. Salt stress is a common abiotic stress for plants. It is unclear whether dodder transmits physiologically relevant salt stress-induced systemic signals among its hosts and whether these systemic signals affect the hosts’ tolerance to salt stress. Here, we simultaneously parasitized two or more cucumber plants with dodder. We found that salt treatment of one host highly primed the connected host, which showed strong decreases in the extent of leaf withering and cell death in response to subsequent salt stress. Transcriptomic analysis indicated that 24 h after salt treatment of one cucumber, the transcriptome of the other dodder-connected cucumber largely resembled that of the salt-treated one, indicating that inter-plant systemic signals primed these dodder-connected cucumbers at least partly through transcriptomic reconfiguration. Furthermore, salt treatment of one of the cucumbers induced physiological changes, including altered proline contents, stomatal conductance, and photosynthetic rates, in both of the dodder-connected cucumbers. This study reveals a role of dodder in mediating salt-induced inter-plant signaling among dodder-connected hosts and highlights the physiological function of these mobile signals in plant–plant interactions under salt stress.

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“…As one of the most important metabolisms for plant growth, photosynthesis is sensitive to salt stress. Photosynthetic analysis seems to be an effective and convenient way for diagnosing plant salt tolerance, because photosynthetic capacity in susceptible cultivars is more liable to be inhibited than tolerant ones [17,18,19,20,21,22]. Salt-induced stomatal closure initially depressed photosynthesis by lowering CO 2 availability [23,24], and subsequently, the negative effect on Rubisco can further restrict CO 2 fixation [25,26].…”

Section: Introductionmentioning

confidence: 99%

Root Abscisic Acid Contributes to Defending Photoinibition in Jerusalem Artichoke (Helianthus tuberosus L.) under Salt Stress

Bian

et al. 2018

IJMS

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The aim of the study was to examine the role of root abscisic acid (ABA) in protecting photosystems and photosynthesis in Jerusalem artichoke against salt stress. Potted plants were pretreated by a specific ABA synthesis inhibitor sodium tungstate and then subjected to salt stress (150 mM NaCl). Tungstate did not directly affect root ABA content and photosynthetic parameters, whereas it inhibited root ABA accumulation and induced a greater decrease in photosynthetic rate under salt stress. The maximal photochemical efficiency of PSII (Fv/Fm) significantly declined in tungstate-pretreated plants under salt stress, suggesting photosystem II (PSII) photoinhibition appeared. PSII photoinhibition did not prevent PSI photoinhibition by restricting electron donation, as the maximal photochemical efficiency of PSI (ΔMR/MR0) was lowered. In line with photoinhibition, elevated H2O2 concentration and lipid peroxidation corroborated salt-induced oxidative stress in tungstate-pretreated plants. Less decrease in ΔMR/MR0 and Fv/Fm indicated that PSII and PSI in non-pretreated plants could maintain better performance than tungstate-pretreated plants under salt stress. Consistently, greater reduction in PSII and PSI reaction center protein abundance confirmed the elevated vulnerability of photosystems to salt stress in tungstate-pretreated plants. Overall, the root ABA signal participated in defending the photosystem’s photoinhibition and protecting photosynthesis in Jerusalem artichoke under salt stress.

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Salt priming improved salt tolerance in sweet sorghum by enhancing osmotic resistance and reducing root Na+ uptake

Cited by 25 publications

References 56 publications

Research progress on plant tolerance to soil salinity and alkalinity in sorghum

Research progress on plant tolerance to soil salinity and alkalinity in sorghum

Dodder-transmitted mobile signals prime host plants for enhanced salt tolerance

Root Abscisic Acid Contributes to Defending Photoinibition in Jerusalem Artichoke (Helianthus tuberosus L.) under Salt Stress

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