Mechanisms and Signaling Pathways of Salt Tolerance in Crops: Understanding from the Transgenic Plants

Afzal, Muhammad; Jia, Qi; Ibrahim, Aminu; Niyitanga, Sylvain

doi:10.1007/s12042-020-09265-0

Cited by 15 publications

(11 citation statements)

References 310 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…MDA content reflects the level of free radicals in plant tissues and the degree of lipid peroxidation caused by free radicals [ 44 ]. Salt stress can induce a series of secondary reactions to plant osmotic stress and ion stress, which greatly increases the content of MDA and ROS in plants [ 45 , 46 ]. Melatonin is recognized as the strongest free radical scavenger and can scavenge both free radicals and ROS in plants [ 47 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of Exogenous Melatonin on Root Physiology, Transcriptome and Metabolome of Cotton Seedlings under Salt Stress

Duan

Liu

et al. 2022

IJMS

View full text Add to dashboard Cite

Root systems are the key organs through which plants absorb water and nutrients and perceive the soil environment and thus are easily damaged by salt stress. Melatonin can alleviate stress-induced damage to roots. The present study investigated the effects of exogenous melatonin on the root physiology, transcriptome and metabolome of cotton seedlings under salt stress. Salt stress was observed to damage the cell structure and disorder the physiological system of cotton seedling roots. After subjecting melatonin-soaked seeds to salt stress, the activities of SOD, CAT and POD in cotton seedling roots increased by 10–25%, 50–60% and 50–60%, respectively. The accumulation of H2O2 and MDA were significantly decreased by 30–60% and 30–50%, respectively. The contents of soluble sugar, soluble protein and K+ increased by 15–30%, 15–30% and 20–50%, respectively, while the Na+ content was significantly reduced. Melatonin also increased auxin (by 20–40%), brassinosteroids (by 5–40%) and gibberellin (by 5–35%) and promoted melatonin content and root activity. Exogenous melatonin maintained the integrity of root cells and increased the number of organelles. Transcriptomic and metabolomic results showed that exogenous melatonin could mitigate the salt-stress-induced inhibition of plant root development by regulating the reactive oxygen species scavenging system; ABC transporter synthesis; plant hormone signal transduction, endogenous melatonin gene expression; and the expression of the transcription factors MYB, TGA and WRKY33. These results provide a new direction and empirical basis for improving crop salt tolerance with melatonin.

show abstract

Section: Discussionmentioning

confidence: 99%

Effects of Exogenous Melatonin on Root Physiology, Transcriptome and Metabolome of Cotton Seedlings under Salt Stress

Duan

Liu

et al. 2022

IJMS

View full text Add to dashboard Cite

show abstract

“…Sodium aggregation prompts chlorosis and rot, and changes different physiological processes that bring about diminished yield due to ion toxicity, nodulation, and reduced nitrogen content in plants [ 6 ]. The saltiness obstructs root development, resulting in reduced weight of plant parts [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Plant Growth Promoting Rhizobacteria, Arbuscular Mycorrhizal Fungi and Their Synergistic Interactions to Counteract the Negative Effects of Saline Soil on Agriculture: Key Macromolecules and Mechanisms

Sagar¹,

Rathore

Ramteke³

et al. 2021

Microorganisms

View full text Add to dashboard Cite

Soil saltiness is a noteworthy issue as it results in loss of profitability and development of agrarian harvests and decline in soil health. Microorganisms associated with plants contribute to their growth promotion and salinity tolerance by employing a multitude of macromolecules and pathways. Plant growth promoting rhizobacteria (PGPR) have an immediate impact on improving profitability based on higher crop yield. Some PGPR produce 1-aminocyclopropane-1-carboxylic (ACC) deaminase (EC 4.1.99.4), which controls ethylene production by diverting ACC into α-ketobutyrate and ammonia. ACC deaminase enhances germination rate and growth parameters of root and shoot in different harvests with and without salt stress. Arbuscular mycorrhizal fungi (AMF) show a symbiotic relationship with plants, which helps in efficient uptake of mineral nutrients and water by the plants and also provide protection to the plants against pathogens and various abiotic stresses. The dual inoculation of PGPR and AMF enhances nutrient uptake and productivity of several crops compared to a single inoculation in both normal and stressed environments. Positively interacting PGPR + AMF combination is an efficient and cost-effective recipe for improving plant tolerance against salinity stress, which can be an extremely useful approach for sustainable agriculture.

show abstract

“…Results suggested the important role of Ca 2+ in generating cells and the osmatic actions of phloem ganglion in P. edulis [ 230 ]. PeNAC-1 has been suggested to regulate Na + across the cellular membrane and may affect the Na + /K + homeostasis [ 206 ] in the heterologous systems as several other phytohormones and ion transporters perform the function in plants under normal and stressed condition plants ( Figure 5 ) [ 231 , 232 ]. Many TFs/genes and transporters have been identified in bamboo, e.g., genes responsive to multiple hormones (cytokinins, gibberellic acid, jasmonic acid, abscisic acid, ethylene, and auxin), and auxin biosynthesis-related transporters (PhIAA, PhPIN, PhPILS, PhAFB, PhLAX, etc.)…”

Section: Understanding the Bamboos’ Tolerance Using Ngs And Metabolomementioning

confidence: 99%

Entailing the Next-Generation Sequencing and Metabolome for Sustainable Agriculture by Improving Plant Tolerance

Hou

Hussain

Imran

et al. 2022

IJMS

View full text Add to dashboard Cite

Crop production is a serious challenge to provide food for the 10 billion individuals forecasted to live across the globe in 2050. The scientists’ emphasize establishing an equilibrium among diversity and quality of crops by enhancing yield to fulfill the increasing demand for food supply sustainably. The exploitation of genetic resources using genomics and metabolomics strategies can help generate resilient plants against stressors in the future. The innovation of the next-generation sequencing (NGS) strategies laid the foundation to unveil various plants’ genetic potential and help us to understand the domestication process to unmask the genetic potential among wild-type plants to utilize for crop improvement. Nowadays, NGS is generating massive genomic resources using wild-type and domesticated plants grown under normal and harsh environments to explore the stress regulatory factors and determine the key metabolites. Improved food nutritional value is also the key to eradicating malnutrition problems around the globe, which could be attained by employing the knowledge gained through NGS and metabolomics to achieve suitability in crop yield. Advanced technologies can further enhance our understanding in defining the strategy to obtain a specific phenotype of a crop. Integration among bioinformatic tools and molecular techniques, such as marker-assisted, QTLs mapping, creation of reference genome, de novo genome assembly, pan- and/or super-pan-genomes, etc., will boost breeding programs. The current article provides sequential progress in NGS technologies, a broad application of NGS, enhancement of genetic manipulation resources, and understanding the crop response to stress by producing plant metabolites. The NGS and metabolomics utilization in generating stress-tolerant plants/crops without deteriorating a natural ecosystem is considered a sustainable way to improve agriculture production. This highlighted knowledge also provides useful research that explores the suitable resources for agriculture sustainability.

show abstract

Mechanisms and Signaling Pathways of Salt Tolerance in Crops: Understanding from the Transgenic Plants

Cited by 15 publications

References 310 publications

Effects of Exogenous Melatonin on Root Physiology, Transcriptome and Metabolome of Cotton Seedlings under Salt Stress

Effects of Exogenous Melatonin on Root Physiology, Transcriptome and Metabolome of Cotton Seedlings under Salt Stress

Plant Growth Promoting Rhizobacteria, Arbuscular Mycorrhizal Fungi and Their Synergistic Interactions to Counteract the Negative Effects of Saline Soil on Agriculture: Key Macromolecules and Mechanisms

Entailing the Next-Generation Sequencing and Metabolome for Sustainable Agriculture by Improving Plant Tolerance

Contact Info

Product

Resources

About