Transgenic Approaches for Enhancement of Salinity Stress Tolerance in Plants

Jha, Shweta

doi:10.1007/978-981-15-0690-1_14

Cited by 19 publications

(17 citation statements)

References 244 publications

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“…Due to the rising severity of salinity on global food production, numerous strategies have been offered to cope with the increasing challenging soil conditions. Along with plant breeding [ 11 ], plant genetic engineering [ 12 ], and genetic transformation [ 13 ], agricultural practices have dramatically contributed to the improvement of plant tolerance to salinity stress. The supplement of calcium (5 mM CaCl 2 ) ameliorated the reduction in shoot and root of salt-treated strawberry plants [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Roles of Plant Growth-Promoting Rhizobacteria (PGPR) in Stimulating Salinity Stress Defense in Plants: A Review

Ha-Tran

Nguyen

Hung

et al. 2021

IJMS

149

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To date, soil salinity becomes a huge obstacle for food production worldwide since salt stress is one of the major factors limiting agricultural productivity. It is estimated that a significant loss of crops (20–50%) would be due to drought and salinity. To embark upon this harsh situation, numerous strategies such as plant breeding, plant genetic engineering, and a large variety of agricultural practices including the applications of plant growth-promoting rhizobacteria (PGPR) and seed biopriming technique have been developed to improve plant defense system against salt stress, resulting in higher crop yields to meet human’s increasing food demand in the future. In the present review, we update and discuss the advantageous roles of beneficial PGPR as green bioinoculants in mitigating the burden of high saline conditions on morphological parameters and on physio-biochemical attributes of plant crops via diverse mechanisms. In addition, the applications of PGPR as a useful tool in seed biopriming technique are also updated and discussed since this approach exhibits promising potentials in improving seed vigor, rapid seed germination, and seedling growth uniformity. Furthermore, the controversial findings regarding the fluctuation of antioxidants and osmolytes in PGPR-treated plants are also pointed out and discussed.

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Section: Introductionmentioning

confidence: 99%

Roles of Plant Growth-Promoting Rhizobacteria (PGPR) in Stimulating Salinity Stress Defense in Plants: A Review

Ha-Tran

Nguyen

Hung

et al. 2021

IJMS

149

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“…In addition to the classical and molecular plant breeding techniques, the key tool became the transfer of genes and gene regulatory regions related to plant water management. Transgenic approaches using candidate genes such as transcription factors, microRNAs, as well as genome editing technology have been well summarized (Tuberosa & Salvi 2006;Abdallah et al 2015;Paul & Roychoudhury 2018;Jha 2019;Anwar & Kim 2020). Attractive targets of plant genetic engineering for drought tolerance are considered transcription factors (e.g.…”

Section: Molecular Tools For Improvement Of Drought Tolerance In Cerealsmentioning

confidence: 99%

Drought Stress in Cereals – A Review

Havrlentová

Kraic

Gregusová

et al. 2021

Agriculture (Pol'nohospodárstvo)

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Drought is one of the most important factors that influences plant morphology, biochemistry, and physiology, and finally leads to the decline in crops productivity and seed quality. Climate change, severe changes in water availability together with thermal stresses environment coincide with increasing human population, and to reveal sustainable solutions it is necessary to understand: i) how cereals react to drought, ii) how the tolerance mechanisms are exhibited by the genotype, and iii) which approaches enable to increase the tolerance of crop species against limited water availability. Especially in cereals as in high-quality food sources, it is important to reveal the adaptation mechanisms to rainfall dynamics on arable land and to the prolonged period of drought. This review summarizes current knowledge on the impact of drought on cereals, the mechanisms these crops utilize to cope water scarcity and survive, and the most efficient approaches to improve their drought tolerance.

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“…The Ca 2+ -SOS signaling is well known as the central salinity excretion system that helps plants against Na + accumulation [48]. The genes for SOS signaling pathway (CBLs-CIPKs as SOS3-SOS2) have shown to provide enhanced resistance to salinity via positive regulation of the plasma membrane-localized Na + /H + antiporter SOS1/NHX7 [7,49,50]. We found that the majority of CBL unigenes were down-regulated by NaCl treatment in both Shanghaijimaocai (71.4%) and Te'aiqing (100%) ( Table 4; Additional le 2: Table S4).…”

Section: Potential Deus May Determine Differences Between Shanghaijimmentioning

confidence: 99%

“…Previous studies have reported that a number of transporters can control Na + , Cland K + transport, which are essential for ion homeostasis to improve salinity tolerance in plants [50,51]. Based on the physiological data ( Fig.…”

Section: Potential Deus May Determine Differences Between Shanghaijimmentioning

confidence: 99%

Comparative Transcriptomics Reveals Osmotic and Ionic Stress Key Genes Contributing To Salinity Tolerance Differential in Two Pak Choi Cultivars

Du¹,

Yu²,

Shi³

et al. 2021

Preprint

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Background: Pak choi is an important leafy vegetable crop. Salinity is among the most harmful agents that negatively influence pak choi yield. However, the mechanism of salinity tolerance in pak choi has not been well understood. In this study, the root transcriptomics of two cultivars differing in salinity tolerant, Shanghaijimaocai (S, salinity tolerant) and Te’aiqing (T, salinity sensitive), were investigated under 0 and 100 mM NaCl treatments.Results: Using de novo assembly, 214,952 assembled unigenes were generated. Totals of 6765, 2454, 2451 and 5798 differentially expressed unigenes (DEUs) were identified in comparison of S100/S0, T100/T0, S0/T0 and S100/T100, respectively. Shanghaijimaocai is more sensitive to NaCl stress than Te’aiqing in terms of root transcriptomics. Based on GO and KEGG pathway analysis, several osmotic and ionic stress-related genes including MP3K18, PYL8, PP2C15/16/49, ARF2, bHLH112, bZIP43, COL5, CDF1/3, ERF25/60, HSFA6, MYBS3/59/92/CCA1/PHL5, POD21, GOLS7, CIPK4/7/12, NHX7, SLAH1 and ALMT13, showed higher expression in Shanghaijimaocai than in Te’aiqing. These genes, therefore, might be contributed to the difference in salinity tolerance. Moreover, the physiological shift of peroxidase activity was in accordance with dynamic transcript profile of the relevant unigenes. Conclusions: We determined digital expression profile and discovered a broad survey of unigenes associated with the difference of salinity tolerance between Shanghaijimaocai and Te’aiqing. These findings would be useful for further functional analysis as potential targets to improve resistance to salinity stress via genetic engineering.

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Transgenic Approaches for Enhancement of Salinity Stress Tolerance in Plants

Cited by 19 publications

References 244 publications

Roles of Plant Growth-Promoting Rhizobacteria (PGPR) in Stimulating Salinity Stress Defense in Plants: A Review

Roles of Plant Growth-Promoting Rhizobacteria (PGPR) in Stimulating Salinity Stress Defense in Plants: A Review

Drought Stress in Cereals – A Review

Comparative Transcriptomics Reveals Osmotic and Ionic Stress Key Genes Contributing To Salinity Tolerance Differential in Two Pak Choi Cultivars

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