Exogenously applied glycine betaine regulates some chemical characteristics and antioxidative defence systems in lettuce under salt stress

Shams, Mostafakamal; Yıldırım, Ertan; Ekinci, Melek; Turan, Metin; Dursun, Atilla; Parlakova, Fazilet; Kul, Raziye

doi:10.1007/s13580-016-0021-0

Cited by 70 publications

(40 citation statements)

References 28 publications

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“…2019). Furthermore, betaine-treated leaves significantly increase the ability of the antioxidant defense system to resist abiotic stresses in different plant species (Osman, 2015;Shams et al, 2016;Yao et al, 2018). Tomato plants could be produced under sandy soil conditions using RDI strategy at transpiration with foliar spraying by betaine to overcome the negative effects of water stress and improve the vegetative growth, fruit yield, and quality (Ragab et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Effects of Betaine and Chitin on Water Use Efficiency in Lettuce (Lactuca sativa var. capitata)

Lin¹,

Chang²,

Lin³

et al. 2020

horts

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Plant biostimulants have received increasing attention in recent years because of their positive effects on crop performance and contribution to agro-ecological sustainability. The aim of this study was to determine the influence of betaine and chitin treatments, alone and in combination, on lettuce plants by changes in the morphology and physiology of plants exposed to regulated deficit irrigation (RDI). Plants were subjected to full irrigation (FI; no water deficiency treatment, field capacity >70%) and RDI (field capacity <50%) conditions until the end of each experiment. We recorded plant yield–related traits, net photosynthesis, and water use efficiency (WUE) values weekly for 4 weeks and carried out three individual experiments to assess the efficacy of biostimulant and irrigation treatments. Betaine (0, 50, and 100 mm/plant) was foliar-treated every 2 weeks during Expt. 1, whereas chitin (0, 2, and 4 g/kg) was applied to the soil at the beginning of Expt. 2. We then applied the optimal concentration of each chemical alone or in combination to the plants as Expt. 3. Compared with negative control, the application of 50 mm betaine and 2 g/kg chitin significantly increased leaf area (LA) per plant by 48.5% and 25.6%, respectively. Furthermore, 50 mm betaine and 2 g/kg chitin treatment showed a clearly protective effect in RDI plants, enhancing their total fresh weights by 26.10% and 75.0%, respectively, in comparison with control. Comparing WUEyield and WUEbiomass, chemical-treated plants had higher values than control. Betaine (50 mm) or chitin (2 g/kg) treatments alone significantly elevated LA, fresh shoot weight, total fresh and dry weights, net photosynthesis, and WUE values, and boosted the water stress tolerance of lettuce under RDI compared with controls. However, a combined treatment of 50 mm betaine and 2 g/kg chitin did not increase the levels of all yield traits under RDI compared with individual chemical treatment. Most leaves appeared healthy, green, and had visually less leaf chlorosis when treated with chitin or betaine under RDI compared with untreated plants subjected to RDI. Our study indicates that applying betaine and chitin improves plant performance against water supply limitations and highlights their potential for the sustainable production of lettuce.

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Section: Resultsmentioning

confidence: 99%

Effects of Betaine and Chitin on Water Use Efficiency in Lettuce (Lactuca sativa var. capitata)

Lin¹,

Chang²,

Lin³

et al. 2020

horts

View full text Add to dashboard Cite

show abstract

“…There are several reports displaying the beneficial effects of exogenous application of GB on plant growth and final crop yield under salt stress or drought. Examples include those in rice, sunflower, maize, canola, eggplant, pepper, ryegrass, lettuce, safflower, pigeon pea, soybean, wheat and tomato [163][164][165][166][167][168][169][170][171][172][173][174][175]. Some reports have also shown that application of GB facilitated the accumulation of other osmotic substances, such as free Pro and soluble sugars in plant organs under salt stress conditions [168,176].…”

Section: Osmoprotectants: Proline Glycine Betaine and Polyaminesmentioning

confidence: 99%

“…Increased dry matter, antioxidant enzyme activities and total phenolic contents, and altered contents of organic acids and amino acids [170] Imbibition in 30 or 60 mM Carthamus tinctorius Increased germination rate and decreased lipid peroxidation [171] 25 mM as foliar spray G. max Increased nitrogen fixation and specific nodule activity [173] Polyamines 0.5 mM Put and 0.5 mM Spd Hordeum vulgare…”

Section: Lolium Perennementioning

confidence: 99%

Towards a Sustainable Agriculture: Strategies Involving Phytoprotectants against Salt Stress

et al. 2020

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Salinity is one of the main constraints for agriculture productivity worldwide. This important abiotic stress has worsened in the last 20 years due to the increase in water demands in arid and semi-arid areas. In this context, increasing tolerance of crop plants to salt stress is needed to guarantee future food supply to a growing population. This review compiles knowledge on the use of phytoprotectants of microbial origin (arbuscular mycorrhizal fungi and plant growth-promoting rhizobacteria), osmoprotectants, melatonin, phytohormones and antioxidant metabolism-related compounds as alleviators of salt stress in numerous plant species. Phytoprotectants are discussed in detail, including their nature, applicability, and role in the plant in terms of physiological and phenotype effects. As a result, increased crop yield and crop quality can be achieved, which in turn positively impact food security. Herein, efforts from academic and industrial sectors should focus on defining the treatment conditions and plant-phytoprotectant associations providing higher benefits.

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“…The plants performances depend on the environmental condition and their response to stress is complex (Shams et al, 2016a;Shams et al, 2016b). Nitric oxide production could be find in various parts of plants under stress measured at the end of the germination counting day.…”

Section: Introductionmentioning

confidence: 99%

Nitric Oxide Alleviates Copper Toxicity in Germinating Seed and Seedling Growth of Lactuca sativa L.

Shams

Yıldırım

Ağar

et al. 2018

Not Bot Horti Agrobo

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Copper has many metabolic functions in the plants. However, it can be toxic to plants where it reaches the excess level. The aim of the present study was to evaluate the role of nitric oxide treatments on lettuce seed germination under copper stress. Thus a factorial laboratory experiment with a completely randomized design was carried out at the Ataturk University. Treatments include different doses of copper (0, 50, 100, 150 and 200 µM of copper sulfate) and nitric oxide (0, 50, 100, 150, 200 and 300 µM of sodium nitroprusside). The results of this study monitored that high concentration of copper (100, 200 and 300 µM) had a significant effect on the germination percentage, germination rate, mean period of ultimate germination, seed vigor index, seedling fresh weight and allometry coefficient, although the nitric oxide treatment (without copper) had not a significant effect on the seeds in comparing to the untreated ones. Copper treatment decreased the investigated parameters, but the simultaneous application of nitric oxide and copper had a positive impact. The results of this study suggested that nitric oxide treatments have been beneficial upon the seeds that treated with copper, but not upon the seeds that treated with water. In addition, the lower concentration of copper (50 µM) had a positive effect on the seed vigor index.

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Exogenously applied glycine betaine regulates some chemical characteristics and antioxidative defence systems in lettuce under salt stress

Cited by 70 publications

References 28 publications

Effects of Betaine and Chitin on Water Use Efficiency in Lettuce (Lactuca sativa var. capitata)

Effects of Betaine and Chitin on Water Use Efficiency in Lettuce (Lactuca sativa var. capitata)

Towards a Sustainable Agriculture: Strategies Involving Phytoprotectants against Salt Stress

Nitric Oxide Alleviates Copper Toxicity in Germinating Seed and Seedling Growth of Lactuca sativa L.

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