Biochemical, physiological and antioxidant enzymatic activity responses of pistachio seedlings treated with plant growth promoting rhizobacteria and Zn to salinity stress

Azarmi, F.; Mozafari, Vahid; Dahaji, Payman Abbaszadeh; Hamidpour, Mohsen

doi:10.1007/s11738-015-2032-3

Cited by 45 publications

(15 citation statements)

References 38 publications

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“…In this study, the Pro content was higher under alkali stress than under salt stress, which suggested that Pro played a more important role in resisting alkali stress. Several studies also show that Pro content increases with increasing soil salinity 39 , 44 , 45 .…”

Section: Discussionmentioning

confidence: 94%

Growth, ionic homeostasis, and physiological responses of cotton under different salt and alkali stresses

Guo

Huang

et al. 2020

Sci Rep

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To better understand the mechanism of salt tolerance, we analyzed cotton growth and the ionomes in different tissues under different types of salt–alkali stress. Cotton was exposed to the soil salt and alkali stresses, NaCl, Na2SO4, and Na2CO3 + NaHCO3, in a pot study. Salt and alkali stress significantly inhibited cotton growth, significantly reduced root length, surface area, and volume, and significantly increased relative electrical conductivity (REC) and malondialdehyde (MDA) content but also significantly increased antioxidant enzyme activities, and proline (Pro) content. The REC in leaves was higher under salt stress than under alkali stress, but the effects on Pro were in the order Na2CO3 + NaHCO3 > NaCl > Na2SO4. Principal component analysis showed a significant difference in ion composition under the different types of salt–alkali stress. Under the three types of salt–alkali stress, concentrations of Na and Mo increased significantly in different organs of cotton plants. Under NaCl stress, the absorption of Ca was inhibited, the transport capacity of P, Mg, and Cu was reduced, and the ion balance was maintained by promoting the uptake and transport of Zn, Mn, Al, and Mo. Under Na2SO4 stress, the absorption of P and Ca was inhibited, the transport capacity of Mg, B, and Cu was reduced, and the ion balance was maintained by promoting the uptake and transport of S, Zn, Fe, Mo, Al, and Co. Under Na2CO3 + NaHCO3 stress, the absorption of P and S was inhibited, the transport capacity of Mg and B was reduced, but that of Al and Fe increased, and the ion balance was maintained by promoting the uptake and transport of Mn, Mo, Ni, and Co. The relative expression of GhSOS1 and GhNHX1 in leaves increased significantly under salt stress but decreased under alkali stress. These results suggest that cotton is well-adapted to salt–alkali stress via the antioxidant enzyme system, adjustment of osmotic substances, and reconstruction of ionic equilibrium; neutral salt stress primarily disrupts the ion balance, whereas alkali stress decreases the ability to regulate Na and inhibits the absorption of mineral elements, as well as disrupts the ion balance; and the changes in the expression of salt tolerance-related genes may partially explain the accumulation of Na ions in cotton under salt–alkali stress.

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Section: Discussionmentioning

confidence: 94%

Growth, ionic homeostasis, and physiological responses of cotton under different salt and alkali stresses

Guo

Huang

et al. 2020

Sci Rep

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“…Therefore, proline seems to be related to root biomass increases, antioxidant enzymes activity, and K + uptake on inoculated plants ( Figure 4 ). Proline is a potent antioxidant and a potential inhibitor of programmed cell death; it stabilizes and protects membranes, proteins, and DNA, and scavenge ROS to maintain osmotic adjustment [ 11 , 50 , 51 , 52 ]. Several bacteria have shown to stimulate proline production in plants under drought stress, hence promoting drought amelioration [ 4 , 8 , 53 ].…”

Section: Discussionmentioning

confidence: 99%

Dry-Caribbean Bacillus spp. Strains Ameliorate Drought Stress in Maize by a Strain-Specific Antioxidant Response Modulation

et al. 2020

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Drought is a global problem for crop productivity. Therefore, the objective of this research was to evaluate five dry-Caribbean Bacillus spp. strains in drought stress amelioration in maize plants. Maize seeds were single-strain inoculated and sown in pots under greenhouse conditions. After 12 days, plants were subjected to 33 days of drought conditions, i.e., 30% of soil field capacity, and then collected to measure leaf and root dry biomass, plant height, antioxidant enzymes, proline accumulation, and P+, Ca2+, and K+ uptake. Results correlated drought stress amelioration with the inoculation of Bacillus spp. strains XT13, XT38 and XT110. Inoculated plants showed increases in dry biomass, plant height, and K+ and P+ uptake. The overall maize antioxidant response to bacterial inoculation under drought stress showed dependence on proline accumulation and decreases in ascorbate peroxidase and glutathione reductase activities. Moreover, results suggest that this stress amelioration is driven by a specific plant-strain correlation observed in antioxidant response changes in inoculated plants under stress. Also, there is a complex integration of several mechanisms, including plant growth-promotion traits and nutrient uptake. Hence, the use of dry-Caribbean plant growth-promoting Bacillus strains represents an important biotechnological approach to enhance crop productivity in arid and semi-arid environments.

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“…Similarly, hydrogen cyanide and NH 3 limitation by rhizosphere microorganisms in polluted soil is reported (Rani and Kumar 2017). Reduction in HCN and ammonia production by rhizobacterial strains under stressed environmental conditions could possibly be due to the impairment of various metabolic activities (Azarmi et al 2016).…”

Section: Iaa Hcn and Nh 3 Productionmentioning

confidence: 96%

Glyphosate induced toxicity to chickpea plants and stress alleviation by herbicide tolerant phosphate solubilizing Burkholderia cepacia PSBB1 carrying multifarious plant growth promoting activities

Shahid

Khan

2018

3 Biotech

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In this study, strain PSBB1 isolated from rhizosphere was identified as, by 16S rDNA sequence analysis and characterized. Strain PSBB1 tolerated glyphosate up to 3200 μg ml and produced IAA (81.6 μg ml), ACC deaminase (69.3 mg protein h), SA (39.3 μg ml) and 2,3-DHBA (26.6 μg ml), solubilized insoluble P (50.8 μg ml) and secreted 29.4 μg ml exopolysaccharides, which decreased with increasing concentrations of glyphosate. Cell damage following glyphosate application was visible under SEM and CLSM. The phytotoxicity of glyphosate on chickpea was variable but significant. . mitigated toxicity and enhanced the size, dry matter, symbiosis, seed attributes and nutritional contents of chickpea. Further, strain PSBB1 declined the levels of CAT, POD, APX and GPX and MDA contents at 4332 μg kg soil glyphosate. Proline also increased under glyphosate stress but declined in inoculated plants. The ability to tolerate higher concentration of glyphosate, the capacity to secrete plant growth regulators even under herbicide stress and potential to reduce the level of proline and antioxidant enzymes makes as an interesting choice for enhancing chickpea production in soils contaminated even with herbicides.

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Biochemical, physiological and antioxidant enzymatic activity responses of pistachio seedlings treated with plant growth promoting rhizobacteria and Zn to salinity stress

Cited by 45 publications

References 38 publications

Growth, ionic homeostasis, and physiological responses of cotton under different salt and alkali stresses

Growth, ionic homeostasis, and physiological responses of cotton under different salt and alkali stresses

Dry-Caribbean Bacillus spp. Strains Ameliorate Drought Stress in Maize by a Strain-Specific Antioxidant Response Modulation

Glyphosate induced toxicity to chickpea plants and stress alleviation by herbicide tolerant phosphate solubilizing Burkholderia cepacia PSBB1 carrying multifarious plant growth promoting activities

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