Stress tolerance and plant growth promotion potential of Enterobacter ludwigii PS1 isolated from Seabuckthorn rhizosphere

Dolkar, Diskit; Dolkar, Phuntsog; Angmo, Stanzin; Chaurasia, O. P.; Stobdan, Tsering

doi:10.1016/j.bcab.2018.04.012

Cited by 19 publications

(8 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Beneficial bacteria like Azospirillales ,Rhizobiales and Burkholderia (all involved in beta-diversity shifts following H and H+D) also led to the production of osmoprotectants like proline, betaine, trehalose, and glycine (Zulfiqar, Akram & Ashraf 2020). Similarly, Enterobacter can promote stress tolerance, likely because of its phosphate-solubilizing ability (Dolkar, Dolkar, Angmo, Chaurasia & Stobdan 2018). In our experiment,Enterobacterales were predominant in H+D stressed roots, whileRhizobiales characterized H conditions.…”

Section: Discussionmentioning

confidence: 54%

A multi-omics approach to unravel the interaction between heat and drought stress in the Arabidopsis thaliana holobiont

Kolb

Senizza

Araniti

et al. 2022

Preprint

View full text Add to dashboard Cite

The impact of combined heat and drought stress was investigated in Arabidopsis thaliana and compared to individual stresses to reveal additive effects and interactions. A combination of plant metabolomics and root and rhizosphere bacterial metabarcoding were used to unravel effects at the plant holobiont level. Hierarchical cluster analysis of metabolomics signatures pointed out two main clusters, one including heat and combined heat and drought, and the second cluster that included the control and drought treatments. Overall, phenylpropanoids and nitrogen-containing compounds, hormones and amino acids showed the highest discriminant potential. A decrease in alpha diversity was observed upon stress, with stress-dependent differences in bacterial microbiota composition. The shift in beta-diversity highlighted the pivotal enrichment of Proteobacteria, including Rhizobiales, Enterobacteriales and Azospirillales. The results corroborate the concept of stress interaction, where the combined heat and drought stress is not the mere combination of the single stresses. Intriguingly, multi-omics interpretations evidenced a good correlation between root metabolomics and root bacterial microbiota, indicating an orchestrated modulation of the whole holobiont.

show abstract

Section: Discussionmentioning

confidence: 54%

A multi-omics approach to unravel the interaction between heat and drought stress in the Arabidopsis thaliana holobiont

Kolb

Senizza

Araniti

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The multiple samples showed a series of highly relevant beneficial populations, with the rest of the isolated strains previously described as promoters of plant growth. Thus, the strains Bacillus cereus , Bacillus nealsonii , Priestia megaterium , Pantoea agglomerans , Enterobacter ludwigii , Stenotrophomonas maltophilia , Paenibacillus pabuli , Paenibacillus peoriae and Paenibacillus polymyxa are highly recognized as growth promoters in different plant species [ 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 ]. Others, such as Enterobacter hormaechei , Atlantibacter hermannii , Paenibacillus amylolyticus , Paenibacillus tundrae and Paenibacillus xylanexedens , have less support in the literature, but have also been reported as beneficial or characterized as potentially beneficial due to their abilities, such as phytohormone production or the solubilization/mobilization of inaccessible nutrients [ 89 , 90 , 91 , 92 , 93 , 94 ].…”

Section: Discussionmentioning

confidence: 99%

Geographically Disperse, Culturable Seed-Associated Microbiota in Forage Plants of Alfalfa (Medicago sativa L.) and Pitch Clover (Bituminaria bituminosa L.): Characterization of Beneficial Inherited Strains as Plant Stress-Tolerance Enhancers

Costa

Santos

Rebelo-Romão

et al. 2022

Biology

View full text Add to dashboard Cite

Agricultural production is being affected by increasingly harsh conditions caused by climate change. The vast majority of crops suffer growth and yield declines due to a lack of water or intense heat. Hence, commercial legume crops suffer intense losses of production (20–80%). This situation is even more noticeable in plants used as fodder for animals, such as alfalfa and pitch trefoil, since their productivity is linked not only to the number of seeds produced, but also to the vegetative growth of the plant itself. Thus, we decided to study the microbiota associated with their seeds in different locations on the Iberian Peninsula, with the aim of identifying culturable bacteria strains that have adapted to harsh environments and that can be used as biotreatments to improve plant growth and resistance to stress. As potentially inherited microbiota, they may also represent a treatment with medium- and long-term adaptative effects. Hence, isolated strains showed no clear relationship with their geographical sampling location, but had about 50% internal similarity with their model plants. Moreover, out of the 51 strains isolated, about 80% were capable of producing biofilms; around 50% produced mid/high concentrations of auxins and grew notably in ACC medium; only 15% were characterized as xerotolerant, while more than 75% were able to sporulate; and finally, 65% produced siderophores and more than 40% produced compounds to solubilize phosphates. Thus, Paenibacillus amylolyticus BB B2-A, Paenibacillus xylanexedens MS M1-C, Paenibacillus pabuli BB Oeiras A, Stenotrophomonas maltophilia MS M1-B and Enterobacter hormaechei BB B2-C strains were tested as plant bioinoculants in lentil plants (Lens culinaris Medik.), showing promising results as future treatments to improve plant growth under stressful conditions.

show abstract

“…e reason for the formation of the halo zone around the bacterial colonies might be due to the production of organic acids, HCN and siderophore production, and other causes [3,7,[30][31][32].…”

Section: Isolation and Characterization Of Pgpr Isolatesmentioning

confidence: 99%

“…ese results were in correspondence with [7], and they observed that an incubation period of 8 days was ideal for achieving the highest level of phosphate solubilization. e authors of [30] studied the characterization of PSB isolated from calcareous soils P solubilization at different incubation times and attained the maximum concentration of water-soluble P (523.69 mg/l) at 7 days of incubation time. Additionally, the authors of [40] observed maximum soluble phosphate at 7 days of growth.…”

Section: Effects Of Incubation Time and Carbon And Nitrogen Sources O...mentioning

confidence: 99%

Isolation and Characterization of Plant Growth-Promoting Rhizobacteria from Coffee Plantation Soils and Its Influence on Maize Growth

Waday

Aklilu

Bultum

et al. 2022

Applied and Environmental Soil Science

View full text Add to dashboard Cite

Plant growth-promoting rhizobacteria (PGPR) are an important bacterial resource as biofertilizers, which can promote plant growth and increase crop yields. In this study, isolation, characterization, and its effect on plant promotion were assessed by isolating PGPR using soil samples collected from Jimma, Ethiopia. Out of 10 isolates, three of them (JEC3, JEC4, and JEC7) exhibited PSB traits in Pikovskaya media by solubilizing phosphate and producing IAA. Of the three isolates, JEC4 recorded the maximum phosphate solubilization index (4.98), soluble phosphate (283 μg/ml), and IAA production (10.21 μg/ml). The findings of the isolates' morphological and biochemical tests showed that JEC3, JEC4, and JEC7 as Bacillus sp., Pseudomonas sp., and Enterobacter sp., respectively. The optimization of phosphate solubilization was done using different incubation times and sources of carbon and nitrogen. Furthermore, the isolate (JEC4) was tested for plant growth-promoting (PGP) activities and indicated the production of ammonia, hydrogen cyanide, and siderophore. JEC4 isolate showed a significant increase in sideways (%) seed germination, root and shoot length, fresh and dry weight of root, and shoot of maize in field experiments than the untreated ones. The results indicate that the JEC4 isolate can be developed as a biological fertilizer for promoting crop productivity and ecosystem dynamics.

show abstract

Stress tolerance and plant growth promotion potential of Enterobacter ludwigii PS1 isolated from Seabuckthorn rhizosphere

Cited by 19 publications

References 36 publications

A multi-omics approach to unravel the interaction between heat and drought stress in the Arabidopsis thaliana holobiont

A multi-omics approach to unravel the interaction between heat and drought stress in the Arabidopsis thaliana holobiont

Geographically Disperse, Culturable Seed-Associated Microbiota in Forage Plants of Alfalfa (Medicago sativa L.) and Pitch Clover (Bituminaria bituminosa L.): Characterization of Beneficial Inherited Strains as Plant Stress-Tolerance Enhancers

Isolation and Characterization of Plant Growth-Promoting Rhizobacteria from Coffee Plantation Soils and Its Influence on Maize Growth

Contact Info

Product

Resources

About