Alleviation of salt-induced adverse effects in pepper seedlings by seed application of glycinebetaine

Korkmaz, Ahmet; Şirikçi, Rauf; Kocaçınar, Ferit; Değer, Özlem; Demirkırıan, Ali Rıza

doi:10.1016/j.scienta.2012.09.029

Cited by 24 publications

(16 citation statements)

References 40 publications

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“…6D-F) because its values were between -0.259 and 0.0127. Therefore, based on other studies (Gibon and Larher, 1997;Korkmaz et al, 2012), we concluded that GB is not an osmolyte, as reported by Asma et al (2006), who observed that the foliar application of GB to corn did not have the expected effect. Although it has been reported that GB acts as an osmoprotectant in some plant species, it is important to mention that these studies have only been performed in vitro (Saini et al, 2012).…”

Section: Discussionsupporting

confidence: 68%

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Contribution of Glycine Betaine and Proline to Water Deficit Tolerance in Pepper Plants

Escalante-Magaña¹,

Aguilar-Caamal²,

Echevarría‐Machado³

et al. 2019

horts

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43 #130, Col. Chuburn a de Hidalgo, 97200 M erida, Yucat an, M exico Additional index words. Water potential, relative water content, osmolytes, electrolyte leakage, drought stress, pepperAbstract. Water stress is the main factor responsible for decreased productivity, which affects the growth and development of crops. Plants respond to stress by accumulating compatible solutes, which have a key role in osmotic adjustment, thereby resulting in osmoprotection of the plants. The loss of water can increase the concentration of compatible osmolytes and molecules that regulate the plant metabolism. These solutes can be metabolized as sugars (sucrose, fructose, trehalosa), amino acids (proline), an amphoteric quaternary amine (glycine betaine), and other low-molecular-weight metabolites. However, among all these compatible solutes, proline and glycine betaine occur the most. Proline is an amino acid that can accumulate in low concentrations under optimal conditions; however, stress conditions contribute to its increased content. Few data are available regarding the levels of endogenous glycine betaine on Solanaceae, which is considered a nonaccumulator under water deficit conditions. The objective of this research was to evaluate the role of compatible osmolytes, glycine betaine and proline, in Capsicum sp. plants under different water deficit conditions. In this study, the presence of endogenous levels of proline and glycine betaine in two species of pepper (Capsicum chinense var. Genesis and Rex and Capsicum annuum var. Padron) were found. The concentration levels of proline were 362, 292, and 246 mmol · g L1 DW for Genesis, Rex and Padron respectively, and irrigation conditions (rehydration) of proline levels increased to 381, 395, and 383 mmol · g L1 DW at 21 days. However, glycine betaine levels were 30-70 mmol · g L1 DW. The relative water content, electrolyte leakage, and soil water potential were also analyzed; therefore, the information suggests that proline contributes better to tolerance to water deficit in the genus Capsicum after 14 days of water deficit treatment. It seems that the contribution of glycine betaine is less effective than that of proline; therefore, it does not have an important role in osmotic adjustment.

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Section: Discussionsupporting

confidence: 68%

“…More importantly, it did not interfere with the endogenous levels of Pro. Previously, it was reported that exogenous administration of GB does not interfere with the metabolism of Pro (Korkmaz et al, 2012).…”

Section: Discussionmentioning

confidence: 95%

Contribution of Glycine Betaine and Proline to Water Deficit Tolerance in Pepper Plants

Escalante-Magaña¹,

Aguilar-Caamal²,

Echevarría‐Machado³

et al. 2019

horts

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“…However, other studies show that there are different and variable results. For instance, an increase in leaf proline concentration has also been reported in response to salt stress and the application of GB compared to control treatments in different crops, such as pepper and soybean [30,64]. These results of increasing proline concentration can be ascribed to the defensive function of GB on some crucial enzymes responsible for the biosynthesis of free proline [65].…”

Section: Discussionmentioning

confidence: 92%

Effects of Exogenous Application of Osmotic Adjustment Substances on Growth, Pigment Concentration, and Physiological Parameters of Dracaena sanderiana Sander under Different Levels of Salinity

et al. 2020

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We evaluated two osmotic adjustment substances (glycine betaine (GB) and glycine (G) and a combination of both glycine + glycine betaine (G + GB) using two modes of application; irrigation and foliar sprays with Dracaena sanderiana plants. The plants were grown in containers and subjected to two levels of NaCl concentrations (2.0 and 7.5 dS m−1) over 8 weeks. Growth, pigment concentrations, and physiological parameters were assessed at the end of the trial. The foliar application of GB resulted in most optimal plant growth and biomass production in the presence of NaCl. The chlorophyll and carotenoid concentrations showed different trends depending on the osmotic adjustment substance applied and the mode of application. Stomatal density and dimensions varied considerably with respect to the osmotic adjustment substance supplied. The concentration of soluble sugars in leaves did not show a clear trend under the different treatments assessed. The exogenous application of G resulted in the highest concentration of free proline and proteins in leaves. The antioxidant capacity in leaves increased with both osmotic adjustment substances, and both means of application, under low and high saline conditions. We concluded that the foliar application of GB can be recommended in order to achieve cost-effective growth of D. sanderiana under saline conditions.

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“…Irrigation was carried out manually sprinkled until the plant establishment. The plants were thinned before the rosette stage and usually (24), SA: foliar application of 2 mM SA solution (25), HA: foliar application of 2.5 L/1000 humic acid solution (26), GB: foliar application of 5 mM GB solution (27), and GABA: foliar application of 50 mM GABA solution (28)]. The drought treatments were imposed after the end of spring rainfall (50 days after planting).…”

Section: Experimental Site the Experiments Was Conducted Between 15 Mamentioning

confidence: 99%

Variation in yield and biochemical factors of German chamomile (Matricaria recutita L.) under foliar application of osmolytes and drought stress conditions

Sadaghiani

Dehaghi

Пирзад

et al. 2019

J Herbmed Pharmacol

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Introduction: Chamomile is one of the oldest and most valuable medicinal plants from the Asteraceae family. In addition to pharmaceutical uses, its essential oil is extensively used in perfumery, cosmetics, food industry and aromatherapy. This experiment was conducted with the aim of investigating the effect of osmolytes foliar application on biochemical characteristics, and the yield of German chamomile under drought stress conditions. Methods: The experiment was conducted as a split plot with randomized complete block design with three replications during the 2016-2017 growing season. Three levels of irrigation, 50 (control), 100 (mild stress) and 150 mm (severe stress) evaporation from evaporation pan class A, and spraying treatments, NS (no-spraying), W (distilled water), MeJA (methyl jasmonate), SA (salicylic acid), HA (humic acid), GB (glycine betaine) and GABA (γ-aminobutyric acid) were considered as the main plots and sub-plots, respectively. Results: Analyzed data indicated that proline, total soluble sugars (TSS), and essential oil yield were enhanced with the increase of drought intensity and the maximum amount was registered under severe stress, while the severe drought caused a substantial reduction in protein concentration of leaves and dried flower yield. Proline concentration of leaves significantly increased with exogenously applied spraying treatments under severe drought. All spraying treatments except GB under severe stress, caused higher TSS concentration than those subjected to mild stress. SA, HA, and GABA treated plants had significantly higher protein concentration compared to NS treatment. Plants that treated with GABA had the highest dried flower and essential oil yield. Conclusion: The present study suggests that osmolytes foliar application can ameliorate the detrimental effects of drought on chamomile plant through alteration in yield and biochemical variables.

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Alleviation of salt-induced adverse effects in pepper seedlings by seed application of glycinebetaine

Cited by 24 publications

References 40 publications

Contribution of Glycine Betaine and Proline to Water Deficit Tolerance in Pepper Plants

Contribution of Glycine Betaine and Proline to Water Deficit Tolerance in Pepper Plants

Effects of Exogenous Application of Osmotic Adjustment Substances on Growth, Pigment Concentration, and Physiological Parameters of Dracaena sanderiana Sander under Different Levels of Salinity

Variation in yield and biochemical factors of German chamomile (Matricaria recutita L.) under foliar application of osmolytes and drought stress conditions

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