Salt tolerance enhancement Of wheat &lt;em&gt;(Triticum Asativium L)&lt;/em&gt; genotypes by selected plant growth promoting bacteria

Fathalla, Alaa mohammed; EL-Mageed, Amal Abd

doi:10.3934/microbiol.2020016

Cited by 9 publications

(3 citation statements)

References 51 publications

(44 reference statements)

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“…P. fluorescens and B. megaterium also showed ACC deaminase activity. Invivo assessment of the salt stress mitigating capacity of the later two revealed improved wheat growth under salinity stress ( Fathalla and Abd El-Mageed, 2020 ).…”

Section: Microbiome Assisted Resistance Against Abiotic Stressmentioning

confidence: 99%

Wheat Microbiome: Structure, Dynamics, and Role in Improving Performance Under Stress Environments

et al. 2022

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Wheat is an important cereal crop species consumed globally. The growing global population demands a rapid and sustainable growth of agricultural systems. The development of genetically efficient wheat varieties has solved the global demand for wheat to a greater extent. The use of chemical substances for pathogen control and chemical fertilizers for enhanced agronomic traits also proved advantageous but at the cost of environmental health. An efficient alternative environment-friendly strategy would be the use of beneficial microorganisms growing on plants, which have the potential of controlling plant pathogens as well as enhancing the host plant’s water and mineral availability and absorption along with conferring tolerance to different stresses. Therefore, a thorough understanding of plant-microbe interaction, identification of beneficial microbes and their roles, and finally harnessing their beneficial functions to enhance sustainable agriculture without altering the environmental quality is appealing. The wheat microbiome shows prominent variations with the developmental stage, tissue type, environmental conditions, genotype, and age of the plant. A diverse array of bacterial and fungal classes, genera, and species was found to be associated with stems, leaves, roots, seeds, spikes, and rhizospheres, etc., which play a beneficial role in wheat. Harnessing the beneficial aspect of these microbes is a promising method for enhancing the performance of wheat under different environmental stresses. This review focuses on the microbiomes associated with wheat, their spatio-temporal dynamics, and their involvement in mitigating biotic and abiotic stresses.

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Section: Microbiome Assisted Resistance Against Abiotic Stressmentioning

confidence: 99%

Wheat Microbiome: Structure, Dynamics, and Role in Improving Performance Under Stress Environments

et al. 2022

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“…On the one hand, A. pitti exerts its growth-promoting effect on plants by producing siderophores, IAA, ACC deaminase, and other substances. IAA enhanced the development of plant roots, and ACC deaminase could inhibit the synthesis of ethylene and relieve external stress on plants [ 69 , 70 ]. Siderophores could provide nutrient transport for plants under a toxic metals stress environment, so as to alleviate the toxicity of heavy metals to plants [ 71 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of the Combination of Phosphate-Solubilizing Bacteria with Orange Residue-Based Activator on the Phytoremediation of Cadmium by Ryegrass

Peng

Zhao

Yang

et al. 2023

Plants

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Amendments with activators or microorganisms to enhance phytoremediation in toxic-metal-polluted soils have been widely studied. In this research, the production of indoleacetic acid, siderophore, and 1-aminocyclopropane-1-carboxylate (ACC) deaminase by phosphate-solubilizing bacteria was investigated during a pure culture experiment. Pot experiments were performed using Cd-polluted soil with the following treatments: control (CK, only ultrapure water), orange-peel-based activator (OG), and a combination of phosphate-solubilizing bacteria (Acinetobacter pitti) and OG (APOG). Ryegrass plant height and fresh weight, Cd content in ryegrass, total and available Cd soil content, soil enzyme activity, and soil bacterial diversity were determined in this work. The findings showed that the height of ryegrass in OG and APOG increased by 14.78% and 21.23%. In the APOG group, a decreased ratio of Cd was 3.37 times that of CK, and the bioconcentration factor was 1.28 times that of CK. The neutral phosphatase activity of APOG was 1.33 times that of CK and catalase activity was 1.95 times that of CK. The activity of urease was increased by 35.48%. APOG increased the abundance of beneficial bacteria and Proteobacteria was the dominant bacterium, accounting for 57.38% in APOG. Redundancy analysis (RDA) showed that nutrient elements were conducive to the propagation of the dominant bacteria, the secretion of enzymes, and the extraction rate of Cd in the soil. The possible enhancement mechanism of phytoremediation of cadmium by A. pitti combined with OG was that, on the one hand, APOG increased soil nutrient elements and enzyme activities promoted the growth of ryegrass. On the other hand, APOG activated Cd and boosted the movement of Cd from soil to ryegrass. This research offers insight for the combination of phosphate-solubilizing bacteria with an orange-peel-based activator to improve phytoremediation of Cd-contaminated soils and also provides a new way for the resource utilization of fruit residue.

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“…Alderman, leading to increased biomass and enhanced photosynthetic activity ( Wang et al., 2016 ). In addition, various studies have documented that rhizobacteria that have functional ACC deaminase provide tolerance in various crops, including P. fluorescens LSMR-29 and E. hirae LSMRS-7 in Vigna radiata ( Kumawat et al., 2024 ), Arthrobacter protophoramiae in P. sativum ( Barnawal et al., 2014 ), P. fluorescens NBRC 14160 and B. megaterium NBRC 15308 in wheat ( Fathalla and Abd El-Mageed, 2020 ), Glutamicibacter sp. YD01 in rice seedlings ( Ji et al., 2020 ), Aneurinibacillus aneurinilyticus and Paenibacillus sp.…”

Section: Plant Growth-promoting Microbes To Mitigate Salinity Stressmentioning

confidence: 99%

Strategies for combating plant salinity stress: the potential of plant growth-promoting microorganisms

Acharya,

Gill,

Kaundal

et al. 2024

Front. Plant Sci.

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Global climate change and the decreasing availability of high-quality water lead to an increase in the salinization of agricultural lands. This rising salinity represents a significant abiotic stressor that detrimentally influences plant physiology and gene expression. Consequently, critical processes such as seed germination, growth, development, and yield are adversely affected. Salinity severely impacts crop yields, given that many crop plants are sensitive to salt stress. Plant growth-promoting microorganisms (PGPMs) in the rhizosphere or the rhizoplane of plants are considered the “second genome” of plants as they contribute significantly to improving the plant growth and fitness of plants under normal conditions and when plants are under stress such as salinity. PGPMs are crucial in assisting plants to navigate the harsh conditions imposed by salt stress. By enhancing water and nutrient absorption, which is often hampered by high salinity, these microorganisms significantly improve plant resilience. They bolster the plant’s defenses by increasing the production of osmoprotectants and antioxidants, mitigating salt-induced damage. Furthermore, PGPMs supply growth-promoting hormones like auxins and gibberellins and reduce levels of the stress hormone ethylene, fostering healthier plant growth. Importantly, they activate genes responsible for maintaining ion balance, a vital aspect of plant survival in saline environments. This review underscores the multifaceted roles of PGPMs in supporting plant life under salt stress, highlighting their value for agriculture in salt-affected areas and their potential impact on global food security.

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Salt tolerance enhancement Of wheat <em>(Triticum Asativium L)</em> genotypes by selected plant growth promoting bacteria

Cited by 9 publications

References 51 publications

Wheat Microbiome: Structure, Dynamics, and Role in Improving Performance Under Stress Environments

Wheat Microbiome: Structure, Dynamics, and Role in Improving Performance Under Stress Environments

Effect of the Combination of Phosphate-Solubilizing Bacteria with Orange Residue-Based Activator on the Phytoremediation of Cadmium by Ryegrass

Strategies for combating plant salinity stress: the potential of plant growth-promoting microorganisms

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