ArticlePloS one2014
The photoprotective role of spermidine in tomato seedlings under salinity-alkalinity stress.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 52 citations in OpenAlex.
- Mechanism of Transcription Factor ChbZIP1 Enhanced Alkaline Stress Tolerance inInternational journal of molecular sciences · 2025Article
- Spermidine augments salt stress resilience in rice roots potentially by enhancing OsbZIP73's RNA binding capacity.BMC plant biology · 2024Article
- Improving strawberry plant resilience to salinity and alkalinity through the use of diverse spectra of supplemental lighting.BMC plant biology · 2024Article
- The effect of supplementary light on the photosynthetic apparatus of strawberry plants under salinity and alkalinity stress.Scientific reports · 2022Article
- Polyamine Oxidase Triggers HInternational journal of molecular sciences · 2022Article
- Polyamine Metabolism under Different Light Regimes in Wheat.International journal of molecular sciences · 2021Article
- Effects of exogenous spermidine on antioxidants and glyoxalase system of lettuce seedlings under high temperature.Plant signaling & behavior · 2020Article
- Modulation of Ion Transport Across Plant Membranes by Polyamines: Understanding Specific Modes of Action Under Stress.Frontiers in plant science · 2020Article
- Mechanisms of Silicon-Mediated Amelioration of Salt Stress in Plants.Plants (Basel, Switzerland) · 2019Review
- Exogenous 2-(3,4-Dichlorophenoxy) triethylamine ameliorates the soil drought effect on nitrogen metabolism in maize during the pre-female inflorescence emergence stage.BMC plant biology · 2019Article
- Spermidine Synthase (SPDS) Undergoes Concerted Structural Rearrangements Upon Ligand Binding - A Case Study of the Two SPDS Isoforms FromFrontiers in plant science · 2019Article
- Effects of Arbuscular Mycorrhizal Fungi on Watermelon Growth, Elemental Uptake, Antioxidant, and Photosystem II Activities and Stress-Response Gene Expressions Under Salinity-Alkalinity Stresses.Frontiers in plant science · 2019Article
- Beneficial Roles of Melatonin on Redox Regulation of Photosynthetic Electron Transport and Synthesis of D1 Protein in Tomato Seedlings under Salt Stress.Frontiers in plant science · 2016Article
- Article
- The Effect of Exogenous Spermidine Concentration on Polyamine Metabolism and Salt Tolerance in Zoysiagrass (Zoysia japonica Steud) Subjected to Short-Term Salinity Stress.Frontiers in plant science · 2016Article
- Exogenous spermidine is enhancing tomato tolerance to salinity-alkalinity stress by regulating chloroplast antioxidant system and chlorophyll metabolism.BMC plant biology · 2015Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Polyamines are small, ubiquitous, nitrogenous compounds that scavenge reactive oxygen species and stabilize the structure and function of the photosynthetic apparatus in response to abiotic stresses. Molecular details underlying polyamine-mediated photoprotective mechanisms are not completely resolved. This study investigated the role of spermidine (Spd) in the structure and function of the photosynthetic apparatus. Tomato seedlings were subjected to salinity-alkalinity stress with and without foliar application of Spd, and photosynthetic and morphological parameters were analyzed. Leaf dry weight and net photosynthetic rate were reduced by salinity-alkalinity stress. Salinity-alkalinity stress reduced photochemical quenching parameters, including maximum photochemistry efficiency of photosystem II, quantum yield of linear electron flux, and coefficient of photochemical quenching (qP). Salinity-alkalinity stress elevated nonphotochemical quenching parameters, including the de-epoxidation state of the xanthophyll cycle and nonphotochemical quenching (NPQ). Microscopic analysis revealed that salinity-alkalinity stress disrupted the internal lamellar system of granal and stromal thylakoids. Exogenous Spd alleviated the stress-induced reduction of leaf dry weight, net photosynthetic rate, and qP parameters. The NPQ parameters increased by salinity-alkalinity stress were also alleviated by Spd. Seedlings treated with exogenous Spd had higher zeaxanthin (Z) contents than those without Spd under salinity-alkalinity stress. The chloroplast ultrastructure had a more ordered arrangement in seedlings treated with exogenous Spd than in those without Spd under salinity-alkalinity stress. These results indicate that exogenous Spd can alleviate the growth inhibition and thylakoid membrane photodamage caused by salinity-alkalinity stress. The Spd-induced accumulation of Z also may have an important role in stabilizing the photosynthetic apparatus.
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