CULTURABLE ENDOPHYTIC BACTERIA FROM HALOTOLERANT Salvadora persica L.: SCREENING, ISOLATION AND PLANT GROWTH PROMOTING TRAITS

Abbas, Hafil; Patel, R.

doi:10.9735/0975-5276.10.3.1074-1077

Cited by 5 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Endophytes are bacteria and fungi that colonize the internal plants tissues without causing pathogenic symptoms (Hardoim et al, 2013) and can directly (nitrogen fixation, phosphate solubilization, siderophore and phytohormone synthesis) and/or indirectly (biocontrol agents) promote plant growth and development (Patle et al, 2018). Moreover, endophytes associated with halophytes possess high tolerance to salt stress (Abbas et al, 2018; Szymańska et al, 2018). Application of halotolerant microbes in sustainable agriculture e.g.…”

Section: Introductionmentioning

confidence: 99%

Effect of osmoprotectants on the survival of bacterial endophytes in lyophilized beet roots

Szymańska

Sikora

Hrynkiewicz

et al. 2019

Preprint

View full text Add to dashboard Cite

The increase of human population and associated increasing demand for agricultural products lead to soil over-exploitation. Biofertilizers based on lyophilized plant material containing living plant growth-promoting microorganisms (PGPM) could be an alternative to conventional fertilizers that fits into sustainable agricultural technologies ideas. We aimed to: (i) assess the diversity of endophytic bacteria in beet roots and (ii) determine the influence of osmoprotectants addition during lyophilization on bacterial density, viability, salt tolerance. Microbiome diversity was assessed based on 16S rRNA amplicons sequencing, bacterial density and salt tolerance was evaluated in cultures, while bacterial viability was calculated by using fluorescence microscopy and flow cytometry. Here we show that plant genotype shapes its endophytic microbiome diversity and determines physicochemical rhizosphere soil properties. Sea beet endophytic microbiome, consisting of genera characteristic for extreme environments, is more diverse and salt resistant than its crop relative. Supplementing osmoprotectants during root tissue lyophilization exerts a positive effect on bacterial community salt stress tolerance, viability and density. Trehalose improves these parameters more effectively than ectoine, moreover its use is economically advantageous.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of osmoprotectants on the survival of bacterial endophytes in lyophilized beet roots

Szymańska

Sikora

Hrynkiewicz

et al. 2019

Preprint

View full text Add to dashboard Cite

show abstract

“…As far as Cherif (2014) is concerned, he showed in his works that some Bacillus strains synthesize IAA. The work of Abbas et al (2018) showed that all five selected endophytic bacterial strains produced indole acetic acid. Indeed, IAA functions as an important signal molecule in the regulation of plant development, acting on organogenesis, trophic responses, cellular responses such as cell expansion, division, differentiation and regulation of cells (Ryu and Patten, 2008;Mezaache, 2012).…”

Section: Phosphate Solubilizationmentioning

confidence: 99%

Biofertilising, plant-stimulating and biocontrol potentials of maize plant growth promoting rhizobacteria isolated in central and northern Benin

Agbodjato¹,

Amogou²,

Noumavo³

et al. 2018

Afr. J. Microbiol. Res.

View full text Add to dashboard Cite

Plants constantly interact with a multitude of microorganisms that they select among other things through their roots. Some bacteria, known as plant growth promoting rhizobacteria (PGPR), are able to stimulate growth and control plant diseases, thanks to the expression of a wide range of beneficial properties to the plant. The aim of this work was to search for biofertilizing, plant-stimulating and biocontrol potentials in PGPR in central and northern Benin. To achieve this goal, the metabolic properties, especially phosphate solubilization, the production of indole acetic acid, hydrogen cyanide, ammonia, exopolysaccharides, certain enzymes and antifungal activity were investigated on nine rhizobacteria strains: Bacillus polymysa, Bacillus anthracis, Bacillus circulans, Bacillus thuringiensis, Bacillus panthothenicus, Pseudomonas cichorii, Pseudomonas putida, Pseudomonas syringae and Serratia marcescens. The results reveal that the three genera of rhizobacteria were producers of hydrogen cyanide, indole acetic acid, catalase and solubilized phosphate. All Pseudomonas and Serratia isolates were producers of exopolysaccharides, protease and lipase while 80% of Bacillus strains were lipase producers and 60% produced exopolysaccharides and protease. As regards the production of ammonia by rhizobacteria, 100% by S. marcescens, 78% of Pseudomonas strains and 80% of Bacillus strains produce them. These results show the possibility of using these rhizobacteria as biological fertilizers to stimulate growth, control fungal diseases and improve crop productivity in Benin.

show abstract

“…Recent data show that more than 7% of global land surface and 70% of all irrigated agricultural soils worldwide is affected by salinity 21 , and the problem is exacerbated by inorganic fertilization as well as by climate changes. Moreover, halophytes thriving in naturally saline environments are reservoirs of endophytes possessing high tolerance to salt stress 22,23 that may be useful in alleviation of salt stress in crops. Application of halotolerant microbes in sustainable agriculture e.g.…”

mentioning

confidence: 99%

Choosing source of microorganisms and processing technology for next generation beet bioinoculant

Szymańska

Sikora

Hrynkiewicz

et al. 2021

Sci Rep

View full text Add to dashboard Cite

The increase of human population and associated increasing demand for agricultural products lead to soil over-exploitation. Biofertilizers based on lyophilized plant material containing living plant growth-promoting microorganisms (PGPM) could be an alternative to conventional fertilizers that fits into sustainable agricultural technologies ideas. We aimed to: (1) assess the diversity of endophytic bacteria in sugar and sea beet roots and (2) determine the influence of osmoprotectants (trehalose and ectoine) addition during lyophilization on bacterial density, viability and salt tolerance. Microbiome diversity was assessed based on 16S rRNA amplicons sequencing, bacterial density and salt tolerance was evaluated in cultures, while bacterial viability was calculated by using fluorescence microscopy and flow cytometry. Here we show that plant genotype shapes its endophytic microbiome diversity and determines rhizosphere soil properties. Sea beet endophytic microbiome, consisting of genera characteristic for extreme environments, is more diverse and salt resistant than its crop relative. Supplementing osmoprotectants during root tissue lyophilization exerts a positive effect on bacterial community salt stress tolerance, viability and density. Trehalose improves the above-mentioned parameters more effectively than ectoine, moreover its use is economically advantageous, thus it may be used to formulate improved biofertilizers.

show abstract

CULTURABLE ENDOPHYTIC BACTERIA FROM HALOTOLERANT Salvadora persica L.: SCREENING, ISOLATION AND PLANT GROWTH PROMOTING TRAITS

Cited by 5 publications

References 31 publications

Effect of osmoprotectants on the survival of bacterial endophytes in lyophilized beet roots

Effect of osmoprotectants on the survival of bacterial endophytes in lyophilized beet roots

Biofertilising, plant-stimulating and biocontrol potentials of maize plant growth promoting rhizobacteria isolated in central and northern Benin

Choosing source of microorganisms and processing technology for next generation beet bioinoculant

Contact Info

Product

Resources

About