scholarly journals Salinity stress affects growth and physiology of mulberry (Morus sp.)

2021 ◽  
Vol 948 (1) ◽  
pp. 012049
Author(s):  
Y R E Wulandari ◽  
T Triadiati ◽  
Y C Sulistyaningsih ◽  
A Suprayogi ◽  
M Rahminiwati
Keyword(s):  
Salt Stress ◽  
Plant Height ◽  
Block Design ◽  
Proline Content ◽  
Photosynthesis Rate ◽  
High Salt ◽  
Stem Cuttings ◽  
Total Chlorophyll ◽  
Shoot Number ◽  
High Salt Stress

Abstract Mulberry (Morus sp.) plant is used to feed silkworms, and the leaves contain compounds with medicinal properties of secondary metabolites. However, the content of these compounds tends to increase under stress conditions, for instance, salt stress. This study, therefore, aimed to determine the accessions of mulberry with tolerance for salt stress. The stem cuttings of seven accessions from 5 regions, Bogor, Pati, Situbondo, Bali, and Gowa, were planted following a factorial randomized block design with 3 replications. Subsequently, the first factor using the accessions, and the second factor using NaCl solution (0.0%, 0.2%, 0.3%, and 0.4% concentrations) were performed. The variables observed were growth (leaves number, plant height, and shoots number), photosynthesis rate, total chlorophyll, and proline content. The results showed that the M6 accession exhibited tolerance under high salt stress, based on the leaves number, plant height, shoot number, photosynthesis rate, and proline content. Furthermore, an increase in salt concentration was discovered to cause a decrease in growth, photosynthesis rate, and total chlorophyll content. Also, proline accumulation stimulated by high salt stress possibly plays an important role in salinity tolerance.

Expression of global regulator IrrE for improved succinate production under high salt stress by Escherichia coli

2018 ◽  
Vol 254 ◽  
pp. 151-156 ◽  
Author(s):  
Wenming Zhang ◽  
Junru Zhu ◽  
Xinggui Zhu ◽  
Meng Song ◽  
Ting Zhang ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Salt Stress ◽  
High Salt ◽  
Global Regulator ◽  
Succinate Production ◽  
High Salt Stress

The polyamine spermine protects against high salt stress inArabidopsis thaliana

FEBS Letters ◽  
2006 ◽  
Vol 580 (30) ◽  
pp. 6783-6788 ◽  
Author(s):  
Koji Yamaguchi ◽  
Yoshihiro Takahashi ◽  
Thomas Berberich ◽  
Akihiko Imai ◽  
Atsushi Miyazaki ◽  
...  
Keyword(s):  
Salt Stress ◽  
High Salt ◽  
High Salt Stress

scholarly journals High-Salt Stress Conditions Increase the pAW63 Transfer Frequency in Bacillus thuringiensis

2012 ◽  
Vol 78 (19) ◽  
pp. 7128-7131 ◽  
Author(s):  
Elise Beuls ◽  
Pauline Modrie ◽  
Cédric Deserranno ◽  
Jacques Mahillon
Keyword(s):  
Salt Stress ◽  
Bacillus Thuringiensis ◽  
Positive Impact ◽  
Brain Heart Infusion ◽  
Luria Bertani ◽  
Plasmid Transfer ◽  
High Salt ◽  
Content Type ◽  
Luria Bertani Broth ◽  
High Salt Stress

ABSTRACTConjugation experiments withBacillus thuringiensisand transfer kinetics demonstrated that salt stress has a positive impact on plasmid transfer efficiency. Compared to standard osmotic conditions (0.5% NaCl), plasmid transfer occurred more rapidly, and at higher frequencies (>100-fold), when bacteria were exposed to a high-salt stress (5% NaCl) in liquid brain heart infusion (BHI). Under milder salt conditions (2.5% NaCl), only a 10-fold effect was observed in Luria-Bertani broth and no difference was detected in BHI. These observations are particularly relevant in the scope of potential gene exchanges among members of theBacillus cereusgroup, which includes food-borne contaminants and pathogens.

scholarly journals Attenuation of salt stress on the physiology and production of bell peppers by treatment with salicylic acid

2021 ◽  
Vol 42 (5) ◽  
pp. 2751-2768
Author(s):  
Luana Lucas de Sá Almeida Veloso ◽  
◽  
Geovani Soares de Lima ◽  
André Alisson Rodrigues da Silva ◽  
Leandro de Pádua Souza ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Acid Concentration ◽  
Irrigation Water ◽  
Block Design ◽  
Bell Pepper ◽  
Total Chlorophyll ◽  
Chlorophylls A And B ◽  
Salicylic Acid Concentration ◽  
Pepper Plants

The use of saline water for irrigation in semi-arid regions has become a reality due to the water scarcity that occurs in most of the year. In this scenario, exogenous application of salicylic acid may be a strategy to mitigate the deleterious effects of salt stress on plants and ensure the production of socioeconomically important crops in the semiarid region of Northeast Brazil, such as bell pepper. Thus, this study examines the osmoprotective effect of salicylic acid on gas exchanges, chloroplast pigments and production components of ‘All Big’ bell pepper plants irrigated with water with different saline levels. The experiment was carried out in greenhouse conditions in Campina Grande - PB, Brazil. Treatments consisted of four levels of electrical conductivity on the irrigation water (0.8, 1.6, 2.4 and 3.2 dS m-1) and four concentrations of salicylic acid (0, 1.2, 2.4 and 3.6 mM), which were distributed in a 4 × 4 factorial arrangement in a randomized block design with three replicates. Increases in irrigation water salinity from 0.8 dS m-1 resulted in changes in gas exchange and total chlorophyll levels of ‘All Big’ bell pepper plants. The estimated salicylic acid concentration of 1.7 mM reduced the effects of salinity on stomatal conductance, transpiration, CO2 assimilation rate, instantaneous carboxylation efficiency, total chlorophyll and fruit diameters. Irrigation with water of 1.8, 0.8 and 1.6 dS m-1 salinity associated with the estimated salicylic acid concentration of 1.6 mM increased the biosynthesis of chlorophylls a and b and the number of fruits, respectively, in bell pepper plants.

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