scholarly journals The endogenous L-cysteine desulfhydrase and hydrogen sulfide participate in supplemented phosphorus-induced tolerance to salinity stress in maize (Zeamays) plants

2020 ◽  
Vol 44 (1) ◽  
pp. 36-46 ◽  
Author(s):  
Cengiz KAYA ◽  
Muhammad ASHRAF
Keyword(s):  
Hydrogen Sulfide ◽  
Salinity Stress ◽  
Cysteine Desulfhydrase ◽  
Induced Tolerance ◽  
Tolerance To Salinity

scholarly journals Involvement of l-Cysteine Desulfhydrase and Hydrogen Sulfide in Glutathione-Induced Tolerance to Salinity by Accelerating Ascorbate-Glutathione Cycle and Glyoxalase System in Capsicum

Antioxidants ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 603
Author(s):  
Cengiz Kaya ◽  
Bernardo Murillo-Amador ◽  
Muhammad Ashraf
Keyword(s):  
Hydrogen Sulfide ◽  
Liquid Solution ◽  
Sweet Pepper ◽  
Monodehydroascorbate Reductase ◽  
Glyoxalase System ◽  
Sodium Hydrosulfide ◽  
Chlorophyll Contents ◽  
Cysteine Desulfhydrase ◽  
Induced Tolerance ◽  
Tolerance To Salinity

The aim of this study is to assess the role of l-cysteine desulfhydrase (l-DES) and endogenous hydrogen sulfide (H2S) in glutathione (GSH)-induced tolerance to salinity stress (SS) in sweet pepper (Capsicum annuum L.). Two weeks after germination, before initiating SS, half of the pepper seedlings were retained for 12 h in a liquid solution containing H2S scavenger, hypotaurine (HT), or the l-DES inhibitor dl-propargylglycine (PAG). The seedlings were then exposed for three weeks to control or SS (100 mmol L−1 NaCl) and supplemented with or without GSH or GSH+NaHS (sodium hydrosulfide, H2S donor). Salinity suppressed dry biomass, leaf water potential, chlorophyll contents, maximum quantum efficiency, ascorbate, and the activities of dehydroascorbate reductase, monodehydroascorbate reductase, and glyoxalase II in plants. Contrarily, it enhanced the accumulation of hydrogen peroxide, malondialdehyde, methylglyoxal, electrolyte leakage, proline, GSH, the activities of glutathione reductase, peroxidase, catalase, superoxide dismutase, ascorbate peroxidase, glyoxalase I, and l-DES, as well as endogenous H2S content. Salinity enhanced leaf Na+ but reduced K+; however, the reverse was true with GSH application. Overall, the treatments, GSH and GSH+NaHS, effectively reversed the oxidative stress and upregulated salt tolerance in pepper plants by controlling the activities of the AsA-GSH and glyoxalase-system-related enzymes as well as the levels of osmolytes.

scholarly journals Oil and Flower Production in Rosa damascena trigintipetala Dieck under Salinity Stress in Taif Region, Saudi Arabia

2021 ◽  
Vol 13 (8) ◽  
pp. 4547
Author(s):  
Mohamed E. El-Sharnouby ◽  
Metwally M. Montaser ◽  
Sliai M. Abdallah
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Salinity Stress ◽  
Growth Parameters ◽  
Industrial Applications ◽  
Rosa Damascena ◽  
Flower Production ◽  
Survival Percentage ◽  
The Impact ◽  
Tolerance To Salinity

The flower industry depends on oil and fragrance, which is addressed in the current work. Different concentrations of NaCl (0, 250, 500, 1000, and 1500 ppm) were applied to Taif rose plants (Rosa damascena var. trigintipetala Dieck) to evaluate their effects on growth and essential oil content. Results clearly indicated the highest survival percentage (98.3%) was seen in untreated plants compared to plants under salinity stress. Moreover, increasing the NaCl levels induced an adverse effect on the growth parameters of Taif rose plants, while some essential oil contents were increased to the maximum degree of their tolerance to salinity stress. The extracted essential oils were analyzed using GC/MS. The essential oils of Taif rose plants treated with 500 ppm NaCl recorded the highest values of citronellol, geraniol and phenylethyl alcohol contents (16.56, 8.67 and 9.87%), respectively. NaCl at 250 ppm produced the highest values of heneicosane (13.12%), and then decreased to the lowest value (7.79%) with the increase of NaCl to 1500 NaCl, compared to the control and other NaCl levels. The current results could highlight the impact of salinity stress on Rosa damascena Miller var. trigintipetala Dieck for better economic and industrial applications.

scholarly journals Identification of genes associated with productivity traits and salinity tolerance from activation tagged lines of rice

2021 ◽  
Author(s):  
Kota Vamsee Raja ◽  
Kalva Madhanasekhar ◽  
Vudem Dashavantha Reddy ◽  
Attipalli Ramachandra Reddy ◽  
Khareedu Venkateswara Rao
Keyword(s):  
Stress Tolerance ◽  
Salinity Stress ◽  
Soluble Sugars ◽  
Crop Productivity ◽  
Antioxidant Systems ◽  
Wild Type ◽  
Stress Symptoms ◽  
Effective Antioxidant ◽  
Use Efficiency ◽  
Tolerance To Salinity

AbstractWorld-wide crop productivity is hugely impacted by diverse eco-environmental conditions. In the present investigation, activation tagged (AT) lines of rice endowed with improved agronomic attributes have been analyzed for tolerance to salinity stress besides identification of genes associated with these attributes. Under salinity stress conditions, AT lines exhibited increased seed germination rates, improved plant growth and development at vegetative and reproductive stages as compared to wild-type (WT) plants. Furthermore, AT lines disclosed enhanced plant water content, photosynthetic efficiency, stomatal conductance, water use efficiency and maximum quantum yield when compared to WT plants, leading to improved yields and delayed onset of stress symptoms. Moreover, AT lines revealed effective antioxidant systems causing decreased accumulation of reactive oxygen species and delayed salinity stress symptoms compared to WT plants. Reduced accumulation of malondialdehyde with concomitant increases in proline and soluble sugars of AT lines further endorsing their improved stress tolerance levels. TAIL and qRT-PCR analyses of AT lines revealed Ds element integrations at different loci and respective overexpression of identified candidate genes involved in various aspects of plant development and stress tolerance. Accordingly, the AT lines plausibly serve as a rare genetic resource for fortifying stress tolerance and productivity traits of elite rice cultivars.HighlightActivation tagged lines of rice endowed with improved agronomic attributes have been analyzed for tolerance to salinity stress besides identification and expression analysis of genes associated with these attributes.

l-Cysteine desulfhydrase-dependent hydrogen sulfide is required for methane-induced lateral root formation

2019 ◽  
Vol 99 (3) ◽  
pp. 283-298 ◽  
Author(s):  
Yudong Mei ◽  
Yingying Zhao ◽  
Xinxin Jin ◽  
Ren Wang ◽  
Na Xu ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Lateral Root ◽  
Root Formation ◽  
Lateral Root Formation ◽  
Cysteine Desulfhydrase

scholarly journals THE EFFECT OF CHITOSAN ON GENE EXPRESSION, SOME MORPHOLOGICAL AND PHYSIOLOGICAL TRAITS OF SWEET BASIL (Ocimum basilicum L.) UNDER SALINITY STRESS

2020 ◽  
Vol 19 (4) ◽  
pp. 21-30
Author(s):  
Nastaran Rashidi ◽  
Ramezan Ali Khavari-Nejad ◽  
Parvin Ramak ◽  
Sara Saadatmand
Keyword(s):  
Gene Expression ◽  
Salinity Stress ◽  
Growth Parameters ◽  
Foliar Spray ◽  
Phenylpropanoid Pathway ◽  
Chlorophyll Contents ◽  
Sweet Basil ◽  
Morphological And Physiological Traits ◽  
Tolerance To Salinity ◽  
Important Medicinal Plant

Sweet basil is an important medicinal plant belonging to Lamiaceae family. In this plant, Phenylpropanoid pathway possesses some enzymes involving in generating suitable essential oil constituents. The main purpose of conducting this study was to investigate the effects of chitosan on sweet basil’s growth and physiological parameters as well as gene expression subjected to salinity stress. After employing a foliar-spray of chitosan at 0 (as control) and 0.2 gl–1, the plants were subjected to salinity treatments at 0, 25, 50, 100, and 150 mM NaCl. The results of this research revealed that chitosan, compared to the controls, improved growth parameters under stressed or non-stressed conditions. In this regard, chitosan increased protein and chlorophyll contents as well as the expression of PAL and COVMT genes leading to an increase in phenolic compounds. To sum up, chitosan improved sweet basil tolerance to salinity through influencing the genes involved in the pathway of phenylpropanoid so as to produce secondary metabolites.

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