Effect of foliar spray with sulfosalicylic acid on morphological and yield traits of chickpea under salinity conditions

Salinity is one of the limiting environmental factors for crop production. Chickpea has special importance among the legumes especially in arid and semi-arid regions and is sensitive to salinity. Therefore, it becomes necessary to make a plan to mitigate the salinity effect on this plant. For this purpose, an experiment was conducted in the net house of Department of Botany, Kurukshetra University, Kurukshetra to investigate the role of sulfosalicylic acid (SSA) at different concentrations (10-4, 10-5 and 10-6 M) in overcoming salinity stress imposed on chickpea plants in natural conditions. Different salinity levels (0, 50 mM, 100 mM and 150 mM) were applied and caused a significant reduction in morphological and yield parameters. Our main findings are as follows: (1) Salt stress has detrimental effects on growth and physiology of plants. (2) Application of SSA at 10-5 M was the most significant concentration in modulating the inhibitory effects of salt stress.

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Evaluation of antioxidant enzymes activity in canola under salt stress

JOURNAL OF ADVANCES IN AGRICULTURE ◽

10.24297/jaa.v2i2.4249 ◽

2014 ◽

Vol 2 (2) ◽

pp. 88-92 ◽

Cited By ~ 1

Author(s):

Jafar Abili ◽

Sajjad Zare

Keyword(s):

Superoxide Dismutase ◽

Antioxidant Enzymes ◽

Salt Stress ◽

Arid Regions ◽

Crop Productivity ◽

Guaiacol Peroxidase ◽

Randomized Design ◽

Salinity Levels ◽

Completely Randomized Design ◽

Semi Arid

Salinity is one of the major stresses in arid and semi-arid regions causing adverse effects at physiological, biochemical, and molecular levels, limiting crop productivity. In this research, three canola cultivars (Licord, Talayeh, Zarfam) were compared at 5 salinity levels (control, 50, 100, 150 and 200 mM) for their catalase, guaiacol peroxidase, superoxide dismutase activity,proline and yield in a completely randomized design with 3 replications. In our study, we found that NaCl concentrations greater than 150 and 200 mM caused the irreversible disorders. Increased salt concentrations led to significant changes in the levels of antioxidative enzymes and proline in three canola cultivars. Also, yield rates in three varieties decreased in the presence of NaCl concentrations.

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Salt stress mitigation by salicylic acid in wheat for food security in coastal area of Bangladesh

Journal of Plant Stress Physiology ◽

10.25081/jpsp.2018.v4.3424 ◽

1970 ◽

pp. 07-16

Author(s):

Sayed Abdul Akher ◽

Md Nazirul Islam Sarker ◽

Shamima Naznin

Keyword(s):

Salicylic Acid ◽

Salt Stress ◽

Grain Yield ◽

Block Design ◽

Grain Yields ◽

Two Factors ◽

Total Treatment ◽

Salinity Levels ◽

Different Levels

Salt stress has a large impact on controlling the plant growth and development. The present study was conducted to examine the role of salicylic acid on alleviation of salt stress in wheat. In this experiment, the treatment consisted of four different salinity levels viz. S0 = without salt (control), S1 = 2.8 g NaCl kg-1 soil ? 3-4 dSm-1, S2 = 6.0 g NaCl kg-1 soil ? 7-8 dSm-1, S3 = 9.0 g NaCl kg-1 soil ? 11-12 dSm-1 and three different levels of salicylic acid (SA) viz. A0 = 0 mM, A1= 0.2 mM and A2 = 0.4 mM. It was done by using two factors Randomized Complete Block Design (RCBD) with four replications. The total treatment combinations were 12 (4x3). Results of the experiment showed a significant dissimilarity among the treatments in respect of the major parameters. Yield of wheat were exaggerated by different levels of salinity. The higher levels of salinity showed greater reduction of yield. The highest grain yields (1.55 tha-1) were recorded at S0A2 (Without Salt + 0.4 mM salicylic acid) treatment combination which did not show any difference with S0A0 (Without Salt+ Without SA) and S0A1 (Without Salt + 0.2 mM SA). But the grain yield was gradually decreased with the increasing level of salinity. The application of salicylic acid increased the grain yield differently according to the levels of salinity. The minimum grain yields were found 1.14 t ha-1, 1.07 tha-1 and 0.26 t ha-1 at 3-4 dSm-1, 7-8 dSm-1 and 11-12 dSm-1 NaCl respectively. These yields were increased with SA (0.4 mM) from 1.14 to 1.32 tha-1, 1.07 to 1.14 tha-1 and 0.26 to 0.31 tha-1 at 3-4 dSm-1, 7-8 dSm-1 and 11-12 dSm-1 NaCl respectively. These results suggest that salicylic acid can alleviate the detrimental impacts of salinity and increase the grain yield of wheat.

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ALLEVIATION OF ADVERSE EFFECTS OF SALT STRESS ON LETTUCE (Lactuca sativa var. crispa) BY APPLICATION OF VERMICOMPOST

Acta Scientiarum Polonorum Hortorum Cultus ◽

10.24326/asphc.2019.5.15 ◽

2019 ◽

Vol 18 (5) ◽

pp. 153-160

Author(s):

Sevinç Kiran

Keyword(s):

Salt Stress ◽

Lactuca Sativa ◽

Crop Production ◽

Weight Basis ◽

Farming Practices ◽

Negative Effects ◽

Relative Water ◽

Leaf Tissues ◽

Arid And Semiarid

In arid and semiarid regions, soil salinity causes salt stress in plants and affects crop production negatively. In this respect, organic farming practices are becoming the foreground as applications that are sensitive to the environment and support sustainability in agriculture. This study aimed to explain the role of vermicompost (VC) for reducing the effect of salt stress on lettuce (Lactuca sativa var. crispa) plant. The experiments were performed with different concentrations of VC (0, 2.5 and 5% VC on a weight per weight basis of soil-w/w) and salt stress treatments (4 and 8 dS m–1 NaCl levels). Under salt stress, shoot heigth, relative,water content (RWC), stomatal conductance (gs), chlorophyll a (Chla) content decreased while electrolyte leakage (EL), malondialdehyde (MDA) contents and superoxide dismutase (SOD) and catalase (CAT) activitys significantly increased in parallel with the severity of stress. In this study, VC under salt stress significantly increased RWC, gs and Chla, Chlt and carotenoid contents in the leaf tissues; however, MDA and EL contents decreased and SOD and CAT activities increased compared to controls. In all levels of NaCl, the 5% ratio of VC significantly reduced the negative effects of salinity.

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Chitosan–Selenium Nanoparticle (Cs–Se NP) Foliar Spray Alleviates Salt Stress in Bitter Melon

Nanomaterials ◽

10.3390/nano11030684 ◽

2021 ◽

Vol 11 (3) ◽

pp. 684

Author(s):

Morteza Sheikhalipour ◽

Behrooz Esmaielpour ◽

Mahdi Behnamian ◽

Gholamreza Gohari ◽

Mousa Torabi Giglou ◽

...

Keyword(s):

Salt Stress ◽

Foliar Application ◽

Foliar Spray ◽

Growth And Yield ◽

Critical Parameters ◽

Bitter Melon ◽

Negative Effects ◽

Positive Effects ◽

Relative Water ◽

Salinity Levels

Salt stress severely reduces growth and yield of plants. Considering the positive effects of selenium (Se) and chitosan (Cs) separately against abiotic stress, in these experiments, we synthesized chitosan–selenium nanoparticles (Cs–Se NPs) and investigated their ability to reduce the negative effects of salt stress on growth and some biochemical parameters of bitter melon (Momordica charantia). Bitter melon plants were grown at three NaCl salinity levels (0, 50, and 100 mM) and a foliar spray of Cs–Se NPs (0, 10, and 20 mg L−1) was applied. Some key morphological, biochemical, and physiological parameters in leaf samples and essential oil from fruit were measured at harvest. Salinity decreased growth and yield while foliar application of Cs–Se NPs increased these critical parameters. Furthermore, Cs–Se NPs enhanced bitter melon tolerance to salinity by increasing antioxidant enzyme activity, proline concentration, relative water content, and K+, and decreasing MDA and H2O2 oxidants and Na aggregation in plant tissues. Yield was also improved, as the highest amount of essential oils was produced by plants treated with Cs–Se NPs. Generally, the greatest improvement in measured parameters under saline conditions was obtained by treating plants with 20 mg L−1 Cs–Se NPs, which significantly increased salinity tolerance in bitter melon plants.

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Response of some wheat genotypes to different salinity levels of Irrigated water

Plant Omics ◽

10.21475/poj.13.01.20.p2268 ◽

2020 ◽

pp. 37-45

Author(s):

Soleman M. Al Otayk

Keyword(s):

Salt Stress ◽

Crop Production ◽

Agricultural Research ◽

Kernel Weight ◽

Limiting Factor ◽

Water Control ◽

Wheat Genotypes ◽

Study Results ◽

Significant Difference ◽

Salinity Levels

Salinity is one of the major constraints for crop production across the world. Saudi Arabia is dominated with desert environment with high salinity in the central region of the country. Therefore, salinity has a limiting factor for cereal crops in this region. The objective of this study was to assess the productivity and quality characters for some wheat (Triticum aestivum L) genotypes under different salinity levels of Irrigated water (control, 4000, 8000 ppm NaCl). The experiment was conducted during 2011 and 2012 seasons. The trial was conducted under greenhouse environmental condition at Qassim University Agricultural Research and Experimental Station during 2011 and 2012 seasons. Twenty wheat genotypes including: 5 genotypes from ICARDA, 7 genotypes from Pakistan, 5 Australian genotypes, one American genotype (Yocora Rojo), one Egyptian genotype (Sakha 93) and one local genotype (Sama) were used in this study. Results from wheat genotype trial showed a significant difference (p<0.05) for all traits due to increased salinity in irrigation water from 4000 to 8000 ppm. There was a significant difference between the varieties for plant height, 1000-kernel weight, number of kernels spike-1 and Na for grain and straw. The interaction effect was significant in number of spikes, 1000-kernel weight and Na for grain and hay and Na / K cereal. The results showed that Auqab 2000, Bhan 2000 and Shaka 93 have the highest yield at high level of salt and Sis 13, P2 and Local were the least in yield. Moreover, the results of principle component analysis (PCA) indicated that the superior wheat genotypes for grain yield under salt stress in the two seasons (Auqab 2000, Bhan 2000, Yocara Rojo and Sakha 93) are clustered in group D. These genotypes can be considered as salinity resistant varieties. The maximum reduction over control under salt stress was recorded in Australian genotypes (P6 and P9) and local genotype 'Sama'.

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Germination and Growth in Control and Primed Seeds of Pepper as Affected by Salt Stress

Cercetari Agronomice in Moldova ◽

10.2478/cerce-2014-0029 ◽

2014 ◽

Vol 47 (3) ◽

pp. 83-95 ◽

Cited By ~ 12

Author(s):

H. Aloui ◽

M. Souguir ◽

S. Latique ◽

C. Hannachi

Keyword(s):

Salt Stress ◽

Crop Production ◽

Seed Priming ◽

Germination Percentage ◽

Salt Resistance ◽

Three Solutions ◽

Randomized Design ◽

Salinity Levels ◽

And Control ◽

Germination And Growth

Abstract Salinity is an important abiotic stress which can affect crop production in the world. One of the simplest methods for improving salinity tolerance of plants is seeds priming. This experiment was conducted to evaluate the effects of seeds priming with three solutions (KCl , NaCl and CaCl2) in germination and later growth of three pepper (Capsicum annuum L.) cultivars: Beldi, Baklouti and Anaheim Chili. Seeds germination was conducted in a completely randomized design under seven salinity levels (0, 2, 4, 6, 8, 10 and 12 g L-1) at room temperature for primed and control seeds. Plants derived from these germinated seeds (control and primed) were transplanted and cultivated in a greenhouse for 4 months and were irrigated permanently with seven salinity levels (0, 2, 4, 6, 8, 10 and 12 g L-1). The results showed that salinity affected all parameters under study like total germination percentage and chlorophyll level (a and b). As well, proline content increased as response to increasing salinity. The plants derived and grown from primed seeds showed a considerable tolerance to salt stress and gave better results. In fact, priming improved the salt resistance of pepper owing to more chlorophyll and proline accumulation. These results suggest that seed priming induced possible physiological adjustments in pepper seeds, especially in the early stages of development, and could be used as a suitable tool for improving germination and growth characteristics under salt stress conditions.

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Effects of exogenous and foliar applications of Brassinosteroid (BRs) and salt stress on the growth, yield and physiological parameters of Lycopersicon esculentum (Mill.)

Plant Science Today ◽

10.14719/pst.2017.4.3.218 ◽

2017 ◽

Vol 4 (3) ◽

pp. 88-101 ◽

Cited By ~ 1

Author(s):

Muhammad Irfan ◽

Jan Alam ◽

Imran Ahmad ◽

Imtiaz Ali ◽

Humaira Gul

Keyword(s):

Salt Stress ◽

Lycopersicon Esculentum ◽

Plant Height ◽

Root Length ◽

Foliar Spray ◽

Weight Ratio ◽

Growth Yield ◽

Root Weight ◽

Salinity Levels ◽

Number Of Leaves

The germination response of Lycopersicon esculentum was studied on different salinity levels from control (non-saline), 0.2,0.4,0.6 and 0.8% NaCl solution. Seeds germinating under salt stress exhibited decrease in saline media as compared to respective control. Seeds germinating with salinity and brassinosteroid (applied exogenously through roots and as foliar spray, 0.25 and 0.5 ppm) exhibited promotion in control as compared to their respective saline media. Plants treated with different salts concentrations (60 and 100mM) NaCl exhibited reduction in plant height, root length, number of leaves, number of fruits and biomass as compared to control while brassinosteroid having concentrations of 0.25 and 0.5 ppm (applied through roots and as foliar spray) caused promotion in plant height, root length, number of leaves, number of fruits and biomass in saline and non saline media. Plants treated with different salts concentration of (60 and 100mM) NaCl exhibited increase in Relative water content, leaf water loss, electrolyte leakage, shoot/- root ratio, root/- weight ratio and leaf/- weight ratio at both NaCl concentrations (60 and 100 mM) as compared to control, while stem/- weight ratio showed reduction at both salinity levels as compared to control while brassinosteroid applied in roots and as a foliar spray at 0.25 and 0.5 ppm concentrations exhibited reduction in stem/- weight ratio at high NaCl level (100 mM) as compared to control.

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Assessment of Morpho-Physiological, Biochemical and Antioxidant Responses of Tomato Landraces to Salinity Stress

Plants ◽

10.3390/plants10040696 ◽

2021 ◽

Vol 10 (4) ◽

pp. 696

Author(s):

Reem H. Alzahib ◽

Hussein M. Migdadi ◽

Abdullah A. Al Ghamdi ◽

Mona S. Alwahibi ◽

Abdullah A. Ibrahim ◽

...

Keyword(s):

Salt Stress ◽

Salinity Stress ◽

Dry Weight ◽

Proline Content ◽

Enzymatic Antioxidants ◽

Sod Activity ◽

Carotene Content ◽

Antioxidants Activity ◽

Solanum Lycopersicum L ◽

Salinity Levels

Understanding salt tolerance in tomato (Solanum lycopersicum L.) landraces will facilitate their use in genetic improvement. The study assessed the morpho-physiological variability of Hail tomato landraces in response to different salinity levels at seedling stages and recommended a tomato salt-tolerant landrace for future breeding programs. Three tomato landraces, Hail 548, Hail 747, and Hail 1072 were tested under three salinity levels: 75, 150, and 300 mM NaCl. Salinity stress reduced shoots’ fresh and dry weight by 71% and 72%, and roots were 86.5% and 78.6%, respectively. There was 22% reduced chlorophyll content, carotene content by 18.6%, and anthocyanin by 41.1%. Proline content increased for stressed treatments. The 300 mM NaCl treatment recorded the most proline content increases (67.37 mg/g fresh weight), with a percent increase in proline reaching 61.67% in Hail 747. Superoxide dismutase (SOD) activity decreased by 65% in Hail 548, while it relatively increased in Hail 747 and Hail 1072 treated with 300 mM NaCl. Catalase (CAT) activity was enhanced by salt stress in Hail 548 and recorded 7.6%, increasing at 75 and 5.1% at 300 mM NaCl. It revealed a reduction in malondialdehyde (MDA) at the 300 mM NaCl concentration in both Hail 548 and Hail 1072 landraces. Increasing salt concentrations showed a reduction in transpiration rate of 70.55%, 7.13% in stomatal conductance, and 72.34% in photosynthetic rate. K+/Na+ ratios decreased from 56% for 75 mM NaCl to 85% for 300 mM NaCl treatments in all genotypes. The response to salt stress in landraces involved some modifications in morphology, physiology, and metabolism. The landrace Hail 548 may have better protection against salt stress and observed protection against reactive oxygen species (ROS) by increasing enzymatic “antioxidants” activity under salt stress.

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An MDM2 inhibitor achieves synergistic cytotoxic effects with adenoviruses lacking E1B55kDa gene on mesothelioma with the wild-type p53 through augmenting NFI expression

Cell Death and Disease ◽

10.1038/s41419-021-03934-y ◽

2021 ◽

Vol 12 (7) ◽

Author(s):

Thao Thi Thanh Nguyen ◽

Masato Shingyoji ◽

Michiko Hanazono ◽

Boya Zhong ◽

Takao Morinaga ◽

...

Keyword(s):

Wild Type ◽

Inhibitory Effects ◽

Cytotoxic Effects ◽

P53 Expression ◽

Nuclear Factor I ◽

Infected Cells ◽

Wild Type P53 ◽

Mdm2 Inhibitor ◽

P16 Expression

AbstractA majority of mesothelioma specimens were defective of p14 and p16 expression due to deletion of the INK4A/ARF region, and the p53 pathway was consequently inactivated by elevated MDM2 functions which facilitated p53 degradaton. We investigated a role of p53 elevation by MDM2 inhibitors, nutlin-3a and RG7112, in cytotoxicity of replication-competent adenoviruses (Ad) lacking the p53-binding E1B55kDa gene (Ad-delE1B). We found that a growth inhibition by p53-activating Ad-delE1B was irrelevant to p53 expression in the infected cells, but combination of Ad-delE1B and the MDM2 inhibitor produced synergistic inhibitory effects on mesothelioma with the wild-type but not mutated p53 genotype. The combination augmented p53 phosphorylation, activated apoptotic but not autophagic pathway, and enhanced DNA damage signals through ATM-Chk2 phosphorylation. The MDM2 inhibitors facilitated production of the Ad progenies through augmented expression of nuclear factor I (NFI), one of the transcriptional factors involved in Ad replications. Knocking down of p53 with siRNA did not increase the progeny production or the NFI expression. We also demonstrated anti-tumor effects by the combination of Ad-delE1B and the MDM2 inhibitors in an orthotopic animal model. These data collectively indicated that upregulation of wild-type p53 expression contributed to cytotoxicity by E1B55kDa-defective replicative Ad through NFI induction and suggested that replication-competent Ad together with augmented p53 levels was a therapeutic strategy for p53 wild-type mesothelioma.

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Seed Gamma Irradiation of Arabidopsis thaliana ABA-Mutant Lines Alters Germination and Does Not Inhibit the Photosynthetic Efficiency of Juvenile Plants

Dose-Response ◽

10.1177/1559325820979249 ◽

2020 ◽

Vol 18 (4) ◽

pp. 155932582097924

Author(s):

Darya Babina ◽

Marina Podobed ◽

Ekaterina Bondarenko ◽

Elizaveta Kazakova ◽

Sofia Bitarishvili ◽

...

Keyword(s):

Arabidopsis Thaliana ◽

Growth Response ◽

Dose Range ◽

Fine Tuning ◽

Plant Tolerance ◽

Inhibitory Effects ◽

Γ Irradiation ◽

Photosynthetic Responses ◽

Mutant Lines

Plant growth response to γ-irradiation includes stimulating or inhibitory effects depending on plant species, dose applied, stage of ontogeny and other factors. Previous studies showed that responses to irradiation could depend on ABA accumulation and signaling. To elucidate the role of ABA in growth and photosynthetic responses to irradiation, lines Col-8, abi3-8 and aba3 -1 of Arabidopsis thaliana were used. Seeds were γ-irradiated using 60Co in the dose range 50-150 Gy. It was revealed that the dose of 150 Gy affected germination parameters of aba3 -1 and Col-8 lines, while abi3-8 line was the most resistant to the studied doses and even showed faster germination at early hours after γ-irradiation at 50 Gy. These results suggest that susceptibility to ABA is probably more important for growth response to γ-irradiation than ABA synthesis. The photosynthetic functioning of 16-day-old plants mainly was not disturbed by γ-irradiation of seeds, and no indication of photosystem II photoinhibition was noticed, revealing the robustness of the photosynthetic system of A. thaliana. Glutathione peroxidase activity and ABA concentrations in plant tissues were not affected in the studied dose range. These results contribute to the understanding of germination and photosynthesis fine-tuning and of mechanisms of plant tolerance to ionizing radiation.

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