scholarly journals Study of Relative Antioxidant Potential of Induced Variants of Catharanthus roseus (L.) G. Don in Salt Stress Condition for the Effective Selection of Salt Tolerant Variant

2020 ◽  
Vol 9 (2) ◽  
pp. 73-77
Author(s):  
Ashutosh Kumar Verma
Keyword(s):  
Salt Stress ◽  
Catharanthus Roseus ◽  
Stress Condition ◽  
Antioxidant Potential ◽  
Salt Tolerant ◽  
Salt Stress Condition ◽  
Effective Selection ◽  
Selection Of

scholarly journals In Vitro Regeneration of Onion (Allium cepa L.) Genotypes under Salt Stress Condition

2021 ◽  
pp. 34-43
Author(s):  
Asfiqur Rahman Plabon ◽  
M. E. Hoque ◽  
Farhana Afrin Vabna ◽  
Fahima Khatun
Keyword(s):  
Salt Stress ◽  
Allium Cepa ◽  
Root Length ◽  
Stress Condition ◽  
In Vitro Regeneration ◽  
Shoot Length ◽  
Salinity Level ◽  
Salt Stress Condition ◽  
Allium Cepa L

Salinity is a major problem affecting crop production all over the world. Excessive soil salinity can reduce the productivity of many agricultural crops including many vegetables and spices. Onion is one of the most important spices in the Asiatic region which is now in high demand. The experiment was conducted to observe in vitro regeneration of onion (Allium cepa L.) under salt stress condition from September 2016 to July 2017. The experiment was conducted as two factorial (genotype and treatment) Completely Randomized Design (CRD) with 3 replications for each treatment. Shoot tip segments of three genotypes namely Faridpuri, Taherpuri and Pusa red (Indian) were cultured in MS (Murashige and skoog, 1962) media supplemented with 25, 50, 75 and 100 mM NaCl. The genotype Faridpuri gave maximum salt tolerance upto 100 mM salinity level with 10.60 cm shoot length and 1.94 cm root length having the highest relative shoot and root growth. Pusa red was found to be salinity sensitive genotype which showing lowest shoot length of 7.03 cm and root length of 0.96 cm at 100 mM NaCl treatment. However, Taherpuri was tolerant up to 100 mM salinity level with 8.14 cm shoot length and 1.25 cm root length. Both the highest fresh weight of root (54.77 mg) and dry weight of root (41.36 mg) was from the genotype Faridpuri with 25 mM NaCl treatment. However, a convenient in vitro regeneration protocol of onion genotypes under different salinity level has been developed and the genotype Faridpuri can be used for further investigation in field condition to evaluate its performance at various salinity levels.

scholarly journals Modulation of ion uptake in tomato (Lycopersicon esculentum L.) plants with exogenous application of calcium under salt stress condition

Poljoprivreda ◽  
2016 ◽  
Vol 22 (2) ◽  
pp. 40-49 ◽  
Author(s):  
Khursheda Parvin ◽  
◽  
Kamal Uddin Ahamed ◽  
Mohammad Mahbub Islam ◽  
Nazmul Haque
Keyword(s):  
Salt Stress ◽  
Lycopersicon Esculentum ◽  
Stress Condition ◽  
Ion Uptake ◽  
Salt Stress Condition ◽  
Exogenous Application

scholarly journals Ultrastructural and antioxidative changes in lupine embryo axes in response to salt stress

2013 ◽  
Vol 82 (4) ◽  
pp. 303-311
Author(s):  
Łukasz Wojtyla ◽  
Magda Grabsztunowicz ◽  
Małgorzata Garnczarska
Keyword(s):  
Superoxide Dismutase ◽  
Salt Stress ◽  
Stress Condition ◽  
Thiobarbituric Acid ◽  
Lupinus Luteus ◽  
Salt Stress Condition ◽  
Stress Prevention ◽  
Embryo Axes ◽  
Antioxidant Enzymes Activities

Embryo axes of lupine (<em>Lupinus luteus</em> L. ‘Mister’) were subjected to 0.1 M NaCl salt stress for 24 and 48 h. The ultrastructure modification and adjustment of antioxidant enzymes activities and izoenzymes profiles were observed. In cells of lupine embryo axes grown for 48 hours in medium with 0.1 M NaCl mitochondria took the forked shape and bulges of the outer mitochondrial membranes appeared. Moreover, the inflating and swelling of rough endoplasmic reticulum (RER) lumen and fragmentation of RER were noticed. The level of H<sub>2</sub>O<sub>2</sub> was higher in salt treated embryo axes after 24 hours and increase of thiobarbituric acid reactive substances was observed after both 24 and 48 h of salt treatment. Native gel electrophoresis showed increased intensities of bands for catalase isozymes in response to salt stress, whereas activity of catalase was higher only in embryo axes grown for 48 h in control conditions. Appearance of two new isoforms of ascorbate peroxidase was observed after 48 h only under control condition, however increased activities were stated for both control and salt-stress condition after 48 h. No changes in isozymes pattern for superoxide dismutase were observed, but significant decrease in superoxide dismutase activity was noticed in relation to time and salt stress. Possible role of these enzymes in salt stress tolerance is discussed. The 0.1 M salt stress is regarded as a middle stress for lupine embryo axes and the efficiency of stress prevention mechanisms is proposed.

scholarly journals Performance of Mango (Mangifera indica L.) Monoembryonic and Polyembryonic Seedlings under Salt Stress Condition

2017 ◽  
Vol 6 (6) ◽  
pp. 3051-3056
Author(s):  
J.S. Gora ◽  
V.K. Singh ◽  
D.K. Sarolia ◽  
Kamlesh Kumar ◽  
Raj kumar ◽  
...  
Keyword(s):  
Salt Stress ◽  
Stress Condition ◽  
Mangifera Indica ◽  
Salt Stress Condition

scholarly journals Comparative Proteomic Analysis of Tolerant and Sensitive Varieties Reveals That Phenylpropanoid Biosynthesis Contributes to Salt Tolerance in Mulberry

2021 ◽  
Vol 22 (17) ◽  
pp. 9402
Author(s):  
Tiantian Gan ◽  
Ziwei Lin ◽  
Lijun Bao ◽  
Tian Hui ◽  
Xiaopeng Cui ◽  
...  
Keyword(s):  
Salt Stress ◽  
Salt Tolerance ◽  
Molecular Mechanism ◽  
Calcium Content ◽  
Heavy Metal Stress ◽  
Sodium Content ◽  
Proline Content ◽  
Salt Tolerant ◽  
Phenylpropanoid Biosynthesis ◽  
Selection Of

Mulberry, an important woody tree, has strong tolerance to environmental stresses, including salinity, drought, and heavy metal stress. However, the current research on mulberry resistance focuses mainly on the selection of resistant resources and the determination of physiological indicators. In order to clarify the molecular mechanism of salt tolerance in mulberry, the physiological changes and proteomic profiles were comprehensively analyzed in salt-tolerant (Jisang3) and salt-sensitive (Guisangyou12) mulberry varieties. After salt treatment, the malondialdehyde (MDA) content and proline content were significantly increased compared to control, and the MDA and proline content in G12 was significantly lower than in Jisang3 under salt stress. The calcium content was significantly reduced in the salt-sensitive mulberry varieties Guisangyou12 (G12), while sodium content was significantly increased in both mulberry varieties. Although the Jisang3 is salt-tolerant, salt stress caused more reductions of photosynthetic rate in Jisang3 than Guisangyou12. Using tandem mass tags (TMT)-based proteomics, the changes of mulberry proteome levels were analyzed in salt-tolerant and salt-sensitive mulberry varieties under salt stress. Combined with GO and KEGG databases, the differentially expressed proteins were significantly enriched in the GO terms of amino acid transport and metabolism and posttranslational modification, protein turnover up-classified in Guisangyou12 while down-classified in Jisang3. Through the comparison of proteomic level, we identified the phenylpropanoid biosynthesis may play an important role in salt tolerance of mulberry. We clarified the molecular mechanism of mulberry salt tolerance, which is of great significance for the selection of excellent candidate genes for saline-alkali soil management and mulberry stress resistance genetic engineering.

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