Utilization of drought-tolerant bacterial strains isolated from harsh soils as a plant growth-promoting rhizobacteria (PGPR)

Ashry, Noha Mohamed; Alaidaroos, Bothaina A.; Mohamed, S. A.; Badr, Omnia A. M.; El‐Saadony, Mohamed T.; Esmael, Ahmed

doi:10.1016/j.sjbs.2021.10.054

Cited by 48 publications

(13 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many efforts have been made to develop ways for making plants more resistant to such stresses and allowing them to grow in challenging environments (Ashry et al . 2021). In this context, the present study aimed to isolate osmotic stress tolerant and PGPB from the Kutch desert soil sample of Gujarat.…”

Section: Resultsmentioning

confidence: 99%

“…Plants, on the other hand, are constantly exposed to different abiotic stresses, the most severe of which is drought or water scarcity (Patel et al 2017). Many efforts have been made to develop ways for making plants more resistant to such stresses and allowing them to grow in challenging environments (Ashry et al 2021). In this context, the present study aimed to isolate osmotic stress tolerant and PGPB from the Kutch desert soil sample of Gujarat.…”

Section: Isolation and Identification Of Bacteriamentioning

confidence: 99%

See 1 more Smart Citation

Screening of osmotic stress-tolerant bacteria for plant growth promotion in wheat (Triticum aestivum L.) and brinjal (Solanum melongena L.) under drought conditions

Patel

Patil

Maiti

et al. 2022

Letters in Applied Microbiology

View full text Add to dashboard Cite

Significance and Impact of the Study: Drought stress affects plant biomass and crop yield in arid and semiarid regions worldwide. The threat generated by drought stress must be addressed by improving plant growth under drought stress conditions. The application of osmotic stress-tolerant bacteria possessing plant growth-promoting properties is viable, eco-friendly and cost-effective. In this study, osmotic stress-tolerant bacteria improved the growth and biomass of wheat and brinjal under drought stress, and upregulated antioxidant enzymes. This study showed that microbes that mitigate drought stress may be used to enhance crop growth in arid and semiarid soils.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Isolation and Identification Of Bacteriamentioning

confidence: 99%

Screening of osmotic stress-tolerant bacteria for plant growth promotion in wheat (Triticum aestivum L.) and brinjal (Solanum melongena L.) under drought conditions

Patel

Patil

Maiti

et al. 2022

Letters in Applied Microbiology

View full text Add to dashboard Cite

show abstract

“…Universal 16S rRNA primers 27F: 5′-AGAGTTTGGATCMTGGCTCAG-3′ and 1492R: 5′-CGGTTACCTTGTTACGACTT-3′ were utilized for DNA amplification [ 22 , 23 ]. PCR reaction volume of 50 µL contained 0.4 μM of each primer with a concentration of 10 pM, 400 μM of dNTP mix, 5 µL PCR reaction buffer (10×), 2 μM MgCl 2 , 2.5 units of TAKARA Taq DNA polymerase, 1 μL of template DNA, and the final volume was adjusted with sterilized double water.…”

Section: Methodsmentioning

confidence: 99%

Bioprospecting for Novel Probiotic Strains from Human Milk and Infants: Molecular, Biochemical, and Ultrastructural Evidence

Mahmoud

Atallah

Badr

et al. 2022

Biology

View full text Add to dashboard Cite

Human milk comprises a diverse array of microbial communities with health-promoting effects, including colonization and development of the infant’s gut. In this study, we characterized the bacterial communities in the Egyptian mother–infant pairs during the first year of life under normal breastfeeding conditions. Out of one hundred isolates, forty-one were chosen for their potential probiotic properties. The selected isolates were profiled in terms of morphological and biochemical properties. The taxonomic evidence of these isolates was investigated based on 16S rRNA gene sequence and phylogenetic trees between the isolates’ sequence and the nearest sequences in the database. The taxonomic and biochemical evidence displayed that the isolates were encompassed in three genera: Lactobacillus, Enterococcus, and Lactococcus. The Lactobacillus was the most common genus in human milk and feces samples with a high incidence of its different species (Lacticaseibacillus paracasei, Lactobacillus delbrueckii, Lactiplantibacillus plantarum, Lactobacillus gasseri, and Lacticaseibacillus casei). Interestingly, BlastN and Jalview alignment results evidenced a low identity ratio of six isolates (less than 95%) with database sequences. This divergence was supported by the unique physiological, biochemical, and probiotic features of these isolates. The isolate L. delbrueckii, ASO 100 exhibited the lowest identity ratio with brilliant probiotic and antibacterial features suggesting the high probability of being a new species. Nine isolates were chosen and subjected to probiotic tests and ultrastructural analysis; these isolates exhibited antibiotic resistance and antibacterial activity with high probiotic characteristics, and high potentiality to be used as prophylactic and therapeutic agents in controlling intestinal pathogens.

show abstract

“…Some of them can generate siderophores to enhance plant disease resistance or secrete phytohormone (such as indole-3-acetic acid, IAA) to promote plant growth ( Pal et al, 2019 ; Murgese et al, 2020 ). Ashry et al (2022) isolated Bacillus cereus DS4, that can improve the tolerance of drought sensitive of maize under drought stress and promote plant growth by producing IAA, extracellular polysaccharide, iron carrier and a variety of antioxidant enzymes. Many studies indicated that Bacillus atrophaeus can enhance the growth of Arabidopsis thaliana and durum wheat under NaCl-stress condition by phosphate solubilization, hydrogen cyanide (HCN), NH 3 and IAA production, nitrogen fixation, antifungal activity ( Kerbab et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Soil Microbes Drive the Flourishing Growth of Plants From Leucocalocybe mongolica Fairy Ring

Wang

Wang²,

Wei

et al. 2022

Front. Microbiol.

View full text Add to dashboard Cite

Fairy ring is a natural phenomenon in which fungal fruiting bodies occur as a ring on a spot. This ring is produced due to spore ejection by Basidiomycetous fungi and forms a lush growing plant belt. However, the drivers for such formations and the potential plant growth-promoting rhizobacteria in fairy ring soils remain unknown. Fairy rings formed by Leucocalocybe mongolica were selected in this study. Soil characteristics and microbial (bacteria and fungi) community structures between beneath and outside the fairy rings were compared through high-throughput sequencing. Beneficial bacterial resources were excavated using dependent culturable methods. Soil electrical conductivity and available potassium were higher in the soil beneath the ring than outside it. These parameters were positively correlated with the dominant microbial community, but microbial diversity was lower. In the soil beneath the fairy ring, Bacteroidetes and Basidiomycota were more abundant, whereas Verrucomicrobia was less prevalent. Bacillus pumilus (strain BG-5) was isolated from the soil beneath the ring. Strain BG-5 can solubilize phosphorus and produce indole-3-acetic acid, NH4+, and siderophores. Furthermore, strain BG-5 enhanced salt tolerance and promoted the growth of Arabidopsis thaliana, wheat (Triticum aestivum), and cotton (Gossypium hirsutum) seedlings. This study indicated the presence of abundant beneficial microbes driving the flourishing growth of plants in the fairy ring soil and provided bio-resources for agricultural growth-promoting agents.

show abstract

Utilization of drought-tolerant bacterial strains isolated from harsh soils as a plant growth-promoting rhizobacteria (PGPR)

Cited by 48 publications

References 70 publications

Screening of osmotic stress-tolerant bacteria for plant growth promotion in wheat (Triticum aestivum L.) and brinjal (Solanum melongena L.) under drought conditions

Screening of osmotic stress-tolerant bacteria for plant growth promotion in wheat (Triticum aestivum L.) and brinjal (Solanum melongena L.) under drought conditions

Bioprospecting for Novel Probiotic Strains from Human Milk and Infants: Molecular, Biochemical, and Ultrastructural Evidence

Soil Microbes Drive the Flourishing Growth of Plants From Leucocalocybe mongolica Fairy Ring

Contact Info

Product

Resources

About