scholarly journals Induced Tolerance to Salinity Stress by Halotolerant Bacteria Bacillus aryabhattai H19-1 and B. mesonae H20-5 in Tomato Plants

2019 ◽  
Vol 29 (7) ◽  
pp. 1124-1136 ◽  
Author(s):  
Sung-Je Yoo ◽  
Hang-Yeon Weon ◽  
Jaekyeong Song ◽  
Mee Kyung Sang
Keyword(s):  
Salinity Stress ◽  
Tomato Plants ◽  
Halotolerant Bacteria ◽  
Bacillus Aryabhattai ◽  
Induced Tolerance ◽  
Tolerance To Salinity

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 Halotolerant Microbial Consortia for Sustainable Mitigation of Salinity Stress, Growth Promotion, and Mineral Uptake in Tomato Plants and Soil Nutrient Enrichment

2021 ◽  
Vol 13 (15) ◽  
pp. 8369
Author(s):  
Chintan Kapadia ◽  
R. Z. Sayyed ◽  
Hesham Ali El Enshasy ◽  
Harihar Vaidya ◽  
Deepshika Sharma ◽  
...  
Keyword(s):  
Salt Stress ◽  
Salinity Stress ◽  
Dry Weight ◽  
Stress Factors ◽  
Microbial Consortia ◽  
Soil Conditions ◽  
Mineral Uptake ◽  
Shoot Height ◽  
Tomato Plants ◽  
Secondary Roots

Salinity significantly impacts the growth, development, and reproductive biology of various crops such as vegetables. The cultivable area is reduced due to the accumulation of salts and chemicals currently in use and is not amenable to a large extent to avoid such abiotic stress factors. The addition of microbes enriches the soil without any adverse effects. The effects of microbial consortia comprising Bacillus sp., Delftia sp., Enterobacter sp., Achromobacter sp., was evaluated on the growth and mineral uptake in tomatoes (Solanum Lycopersicum L.) under salt stress and normal soil conditions. Salinity treatments comprising Ec 0, 2, 5, and 8 dS/m were established by mixing soil with seawater until the desired Ec was achieved. The seedlings were transplanted in the pots of the respective pH and were inoculated with microbial consortia. After sufficient growth, these seedlings were transplanted in soil seedling trays. The measurement of soil minerals such as Na, K, Ca, Mg, Cu, Mn, and pH and the Ec were evaluated and compared with the control 0 days, 15 days, and 35 days after inoculation. The results were found to be non-significant for the soil parameters. In the uninoculated seedlings’ (control) seedling trays, salt treatment significantly affected leaf, shoot, root dry weight, shoot height, number of secondary roots, chlorophyll, and mineral contents. While bacterized seedlings sown under saline soil significantly increased leaf (105.17%), shoot (105.62%), root (109.06%) dry weight, leaf number (75.68%), shoot length (92.95%), root length (146.14%), secondary roots (91.23%), and chlorophyll content (−61.49%) as compared to the control (without consortia). The Na and K intake were higher even in the presence of the microbes, but the beneficial effect of the microbe helps plants sustain in the saline environment. The inoculation of microbial consortia produced more secondary roots, which accumulate more minerals and transport substances to the different parts of the plant; thus, it produced higher biomass and growth. Results of the present study revealed that the treatment with microbial consortia could alleviate the deleterious effects of salinity stress and improve the growth of tomato plants under salinity stress. Microbial consortia appear to be the best alternative and cost-effective and sustainable approach for managing soil salinity and improving plant growth under salt stress conditions.

scholarly journals Unmanned Aerial Vehicle-Based Phenotyping Using Morphometric and Spectral Analysis Can Quantify Responses of Wild Tomato Plants to Salinity Stress

2019 ◽  
Vol 10 ◽  
Author(s):  
Kasper Johansen ◽  
Mitchell J. L. Morton ◽  
Yoann M. Malbeteau ◽  
Bruno Aragon ◽  
Samir K. Al-Mashharawi ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Unmanned Aerial Vehicle ◽  
Salinity Stress ◽  
Tomato Plants ◽  
Wild Tomato ◽  
Aerial Vehicle

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.

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.

Ameliorative effect of selenium on tomato plants grown under salinity stress

2016 ◽  
Vol 62 (10) ◽  
pp. 1368-1380 ◽  
Author(s):  
Maryam Mozafariyan ◽  
Mohammad Mojtaba Kamelmanesh ◽  
Barbara Hawrylak-Nowak
Keyword(s):  
Salinity Stress ◽  
Tomato Plants ◽  
Ameliorative Effect
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