Tolerance of pesticides and antibiotics among beneficial soil microbes recovered from contaminated rhizosphere of edible crops

“…Similar ability to tolerate a variety of pesticides has been documented in different soil isolates, viz., Pseudomonas, Azotobacter and phosphate-solubilizing bacteria. 54 In profenofosamended agricultural soils, Acinetobacter sp. and Comamonas sp.…”

Section: Isolation Pgp Features Pesticide Tolerance and Molecular Ide...mentioning

confidence: 99%

Unraveling the potential of pesticide-tolerant Pseudomonas sp. augmenting biological and physiological attributes of Vigna radiata (L.) under pesticide stress

2022

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“…Several studies have discovered that endophytic bacteria are important in alleviating salt stress in a range of agricultural plants [ 16 , 17 ]. For instance, PGP endophytic bacterium Cronobacter sp.…”

Section: Introductionmentioning

confidence: 99%

Stress-Tolerant Endophytic Isolate Priestia aryabhattai BPR-9 Modulates Physio-Biochemical Mechanisms in Wheat (Triticum aestivum L.) for Enhanced Salt Tolerance

Shahid

Zeyad

Syed

et al. 2022

IJERPH

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In efforts to improve plant productivity and enhance defense mechanisms against biotic and abiotic stresses, endophytic bacteria have been used as an alternative to chemical fertilizers and pesticides. In the current study, 25 endophytic microbes recovered from plant organs of Triticum aestivum L. (wheat) were assessed for biotic (phyto-fungal pathogens) and abiotic (salinity, drought, and heavy metal) stress tolerance. Among the recovered isolates, BPR-9 tolerated maximum salinity (18% NaCl), drought (15% PEG-6000), and heavy metals (µg mL−1): Cd (1200), Cr (1000), Cu (1000), Pb (800), and Hg (30). Based on phenotypic and biochemical characteristics, as well as 16S rDNA gene sequencing, endophytic isolate BPR-9 was recognized as Priestia aryabhattai (accession no. OM743254.1). This isolate was revealed as a powerful multi-stress-tolerant crop growth promoter after extensive in-vitro testing for plant growth-promoting attributes, nutrient (phosphate, P; potassium, K; and zinc, Zn) solubilization efficiency, extracellular enzyme (protease, cellulase, amylase, lipase, and pectinase) synthesis, and potential for antagonistic activity against important fungal pathogens viz. Alternaria solani, Rhizoctonia solani, Fusarium oxysporum, and Ustilaginoidea virens. At elevated salt levels, increases were noted in indole-3-acetic acid; siderophores; P, K, and Zn-solubilization; ACC deaminase; and ammonia synthesized by Priestia aryabhattai. Additionally, under in-vitro plant bioassays, wheat seedlings inoculated with P. aryabhattai experienced superior growth compared to non-inoculated seedlings in high salinity (0–15% NaCl) environment. Under NaCl stress, germination rate, plant length, vigor indices, and leaf pigments of wheat seedlings significantly increased following P. aryabhattai inoculation. Furthermore, at 2%-NaCl, B. aryabhattai greatly and significantly (p ≤ 0.05) decreased relative leaf water content, membrane damage, and electrolyte leakage compared with the non-inoculated control. Catalase, superoxide dismutase, and peroxidase activity increased by 29, 32, and 21%, respectively, in wheat seedlings exposed to 2% NaCl and inoculated with the bacteria. The present findings demonstrate that endophytic P. aryabhattai strains might be used in the future as a multi-stress reducer and crop growth promoter in agronomically important crops including cereals.

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“…In a study conducted in Saudi Arabia on the bacterium Bacillus megaterium isolated from root-nodules of Medicago sativa, the results showed that some attributes promote growth, such as indole acetic acid production and inorganic phosphate solubilization (Khalifa and Almalki, 2015). Besides that, three PSB species, Bacillus, Azotobacter, and Pseudomonas, showed a significant reduction in heavy metal uptake by corn plants due to increased P solubility and phytostabilization of heavy metals (Shahid and Khan, 2022).…”

Section: Phosphate Solubilizing Bacteria (Psb)mentioning

confidence: 99%

Plant growth promoting bacteria drive food security

Al-Tammar

Khalifa

2022

Braz. J. Biol.

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The essence of food security centers on ensuring availability and accessibility of foods in adequate amounts and quality for all populations at all times for an active and healthy life. Microorganisms are tiny bioreactors, which represent sustainable resources and promising approaches to bridging the gap between food production and consumption globally via various biotechnological applications. This review focuses on plant-growth promoting bacteria (PGPB) which exert their potential impacts on increasing soil fertility, plant growth, and productivity through a variety of processes, including direct, indirect, and synergistic mechanisms. PGPB plays a substantial role in accelerating nutrients' availability such as (N, P), producing phytohormones such as gibberellins, IAA, and bioactive compounds against biotic and abiotic stressors. Recent advances in PGPB will be addressed as a sustainable approach to satisfy global food demand.

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Tolerance of pesticides and antibiotics among beneficial soil microbes recovered from contaminated rhizosphere of edible crops

Cited by 14 publications

References 90 publications

Unraveling the potential of pesticide-tolerant Pseudomonas sp. augmenting biological and physiological attributes of Vigna radiata (L.) under pesticide stress

Unraveling the potential of pesticide-tolerant Pseudomonas sp. augmenting biological and physiological attributes of Vigna radiata (L.) under pesticide stress

Stress-Tolerant Endophytic Isolate Priestia aryabhattai BPR-9 Modulates Physio-Biochemical Mechanisms in Wheat (Triticum aestivum L.) for Enhanced Salt Tolerance

Plant growth promoting bacteria drive food security

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