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

García‐Caparrós, Pedro; Llanderal, Alfonso; Hegarat, Elodie; Jiménez-Lao, María; Lao, María Teresa

doi:10.3390/agronomy10010125

Cited by 21 publications

(8 citation statements)

References 60 publications

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“…In both seasons, raising salinity levels from 1000 to 2500 or 5000 ppm caused steady significant reduction in all of tested growth parameters compared to the control plants. These results are similar to findings of various studies (Farahat, et al, 2013;Breś et al, 2016;Ashour and El-Attar 2017;Ashour and Abdel Wahab, 2017;García-Caparrós and Lao, 2018;Hooks and Niu, 2019;García-Caparrós, et al 2020) who reported reductions in growth traits of ornamental plants due to negative impact of salt stress. Effect of bio-stimulators treatments Data in Table 2, 3, and 4 also revealed that vegetative growth attributes of Vitex trifolia 'Purpurea' plants were dramatically affected by foliar application of the biostimulators treatments.…”

Section: Growth Parameterssupporting

confidence: 92%

“…The reductions in total chlorophylls and total carbohydrates content a result of raising salinity stress are similar to those reported by various studies (Farahat et al, 2013;Ashour and Abdel Wahab, 2017;García-Caparrós and Lao, 2018). In recent study (García-Caparrós et al, 2020) reported decrease in total carbohydrates content in response to salt stress. Further, the reduction in K + and Ca 2+ % is in harmony with that recorded by García-Caparrós and Lao (2018); Hooks and Niu (2019).…”

Section: Chemical Constituents Chlorophylls Content and Total Carbohysupporting

confidence: 88%

“…In both seasons, the increments in proline content were insignificant with the lowest salinity level (1000 ppm), while higher levels (2500-5000 ppm) caused significant increases in recorded mean values compared to control plants. Similar results of increasing proline content due to salinity stress were reported by many prior researchers (Bhatt et al, 2008;Farahat et al, 2013;Breś et al, 2016;Ashour and Abdel Wahab, 2017;García-Caparrós and Lao, 2018;García-Caparrós et al, 2020). They attributed proline augmentations in salt stress conditions to its role as osmotic adjustment, acting as a reservoir of energy and nitrogen for utilization, protection of enzymes and membranes.…”

Section: Proline Contentsupporting

confidence: 84%

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Alleviative effects of chitosan or humic acid on Vitex trifolia ‘Purpurea’ grown under salinity stress

2021

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Pots experiment was conducted to investigate the effect of bio-stimulators chitosan (CHT) or humic acid (HA) on Vitex trifolia ‘Purpurea’ exposed to salinity stress. Salinity stress was imposed by irrigation with saline water at concentration of 1000, 2500 and 5000 ppm, in addition to control (280 ppm), plants exposed to salinity were sprayed every 4 weeks with either CHT at concentrations of 30, 60 and 90 ppm or HA at concentrations of 1000, 1500 and 2000 ppm, while control plants sprayed only with tap water. The results showed that, with increasing salinity stress all vegetative growth parameters were decreased and chemical constituents including total chlorophylls total carbohydrates, K+ %, Ca2+ % and K+/Na+ ratio were reduced. In contrast, elevating salinity stress increased contents of proline, total phenolic, Na+ %, Cl− %. On the other hand, foliar application of either CHT or HA had favorable impact on increasing vegetative traits and chemical compositions, meanwhile reducing accumulation of total phenolic, Na+ and Cl− % toxic ions in leaves, HA was generally more effective than CHT. Based on the results, it can be recommended that, CHT or HA at high concentration was the best effective treatments; however, HA was superior and economic treatment recommended for alleviating the adverse impact of salinity stress on Vitex trifolia ‘Purpurea’ plants irrigated with saline water at concentration up to 5000 ppm.

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Section: Growth Parameterssupporting

confidence: 92%

Section: Chemical Constituents Chlorophylls Content and Total Carbohysupporting

confidence: 88%

Section: Proline Contentsupporting

confidence: 84%

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Alleviative effects of chitosan or humic acid on Vitex trifolia ‘Purpurea’ grown under salinity stress

2021

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“…To cope with the ion toxicity and osmotic stress caused by salt stress, plants have evolved a suite of adaptive mechanisms to minimize such damage to cells and tissues 4 . These mainly consist of morphological adaptations 5 , regulation of osmotic substances 6 , defensive functioning of the antioxidant enzyme system 7 , changes in the photorespiration pathway 8 , and ion zone isolation in cells 9 . In addition, some salt-secreting plants can form salt glands and use them or vesicles to secrete excess salt out of the body to avoid a large accumulation of salt ions 10 .…”

Section: Introductionmentioning

confidence: 99%

Physiological response and proteomics analysis of Reaumuria soongorica under salt stress

Yan

Chong

Ming

et al. 2022

Sci Rep

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Soil salinity can severely restrict plant growth. Yet Reaumuria soongorica can tolerate salinity well. However, large-scale proteomic studies of this plant’s response to salinity have yet to reported. Here, R. soongorica seedlings (4 months old) were used in an experiment where NaCl solutions simulated levels of soil salinity stress. The fresh weight, root/shoot ratio, leaf relative conductivity, proline content, and total leaf area of R. soongorica under CK (0 mM NaCl), low (200 mM NaCl), and high (500 mM NaCl) salt stress were determined. The results showed that the proline content of leaves was positively correlated with salt concentration. With greater salinity, the plant fresh weight, root/shoot ratio, and total leaf area increased initially but then decreased, and vice-versa for the relative electrical conductivity of leaves. Using iTRAQ proteomic sequencing, 47 177 136 differentially expressed proteins (DEPs) were identified in low-salt versus CK, high-salt versus control, and high-salt versus low-salt comparisons, respectively. A total of 72 DEPs were further screened from the comparison groupings, of which 34 DEPs increased and 38 DEPs decreased in abundance. These DEPs are mainly involved in translation, ribosomal structure, and biogenesis. Finally, 21 key DEPs (SCORE value ≥ 60 points) were identified as potential targets for salt tolerance of R. soongolica. By comparing the protein structure of treated versus CK leaves under salt stress, we revealed the key candidate genes underpinning R. soongolica’s salt tolerance ability. This works provides fresh insight into its physiological adaptation strategy and molecular regulatory network, and a molecular basis for enhancing its breeding, under salt stress conditions.

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“…However, this is not an easy task as salt tolerance is a complex trait that is controlled by multiple genes and involves various biochemical and physiological mechanisms [ 17 ]. Mechanisms that enhance the degree of plant tolerance may also be induced or enhanced by the application of some chemicals [ 18 , 19 , 20 ]. Many strategies, including the use of certain organic compounds, such as amino acids, glycine-betaine, salicylic acids or plant growth promoting fungi/bacteria, mitigate salt stress [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Beet Molasses Enhance Salinity Tolerance in Thymus serpyllum—A Study under Greenhouse Condition

Koźmińska

Hanus-Fajerska

Halecki

et al. 2021

Plants

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The growing demand for Thymus serpyllum biomass to produce drugs, cosmetics and spices necessitates the search for innovative methods mitigating the negative effects of environmental stressors in order to improve its yield under unfavorable conditions. Due to the exposure of plants to salinity stress (SS), we investigated the effect of sugar beet molasses (SBM) on the growth and biochemical parameters related to plants’ response to SS. Wild thyme plants were treated for 5 weeks to sodium chloride and 3% molasses solution using two modes of application (soil irrigation or foliar sprays). Plants irrigated by SBM showed slighter stem growth inhibition than control plants, high stress tolerance index and maintained a constant root water content under salt stress. Moreover plants treated with 100 mM NaCl and soil-applied SBM had lower lipid peroxidation level, showed lower POD activity, higher total soluble protein content and maintained a more even free amino acids level, compared to the control treatments. The concentration of potassium ions was higher in the case of plant roots irrigation with sugar beet molasses compared to control plants. In this experiment, most of the growth and biochemical parameters from foliar molasses-sprayed plants did not differ significantly from the control. We provided evidence that soil-applied SBM beneficially changed the plant’s biochemical response to salt stress. On the basis of the obtained results, we conclude that this soil amendment contributes to the strengthening of plant protection against this harmful environmental factor.

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

Cited by 21 publications

References 60 publications

Alleviative effects of chitosan or humic acid on Vitex trifolia ‘Purpurea’ grown under salinity stress

Alleviative effects of chitosan or humic acid on Vitex trifolia ‘Purpurea’ grown under salinity stress

Physiological response and proteomics analysis of Reaumuria soongorica under salt stress

Beet Molasses Enhance Salinity Tolerance in Thymus serpyllum—A Study under Greenhouse Condition

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