Alcaligenes aquatilis GTE53: Phosphate solubilising and bioremediation bacterium isolated from new biotope “phosphate sludge enriched-compost”

Haouas, Ayoub; Modafar, Cherkaoui El; Douira, Allal; Ibnsouda-Koraichi, Saad; Filali‐Maltouf, Abdelkarim; Moukhli, Abdelmajid; Amir, Soumia

doi:10.1016/j.sjbs.2020.10.015

Cited by 19 publications

(9 citation statements)

References 59 publications

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“…However, due to the cost of its production and unpredicted environmental hazards like water eutrophication, sustainability of soil-plant systems, and human health problems, the use of chemical P fertilizers are discouraged [156]. Soil microbiomes having P solubilizing/mineralizing activity-often termed phosphate solubilizing microorganisms (PSM) in this context-have been suggested as a substitute to chemical phosphatic fertilizer [157,158] that transform the locked P into soluble forms which are taken up by plants [159,160]. To harness their potentials, phosphatic, nitrogenous, and potassic biofertilizers [161][162][163] have been produced and are commercially sold worldwide but their use in colder regions have been found to be grossly unproductive [164] due largely to the lethal impact of low temperatures on the functional activity of mesophilic homologs.…”

Section: Importance Of P and Rationale For Using Cold-active Bacterial Phosphate Biofertilizers In Low-temperature Environmentsmentioning

confidence: 99%

Psychrophilic Bacterial Phosphate-Biofertilizers: A Novel Extremophile for Sustainable Crop Production under Cold Environment

et al. 2021

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Abiotic stresses, including low-temperature environments, adversely affect the structure, composition, and physiological activities of soil microbiomes. Also, low temperatures disturb physiological and metabolic processes, leading to major crop losses worldwide. Extreme cold temperature habitats are, however, an interesting source of psychrophilic and psychrotolerant phosphate solubilizing bacteria (PSB) that can ameliorate the low-temperature conditions while maintaining their physiological activities. The production of antifreeze proteins and expression of stress-induced genes at low temperatures favors the survival of such organisms during cold stress. The ability to facilitate plant growth by supplying a major plant nutrient, phosphorus, in P-deficient soil is one of the novel functional properties of cold-tolerant PSB. By contrast, plants growing under stress conditions require cold-tolerant rhizosphere bacteria to enhance their performance. To this end, the use of psychrophilic PSB formulations has been found effective in yield optimization under temperature-stressed conditions. Most of the research has been done on microbial P biofertilizers impacting plant growth under normal cultivation practices but little attention has been paid to the plant growth-promoting activities of cold-tolerant PSB on crops growing in low-temperature environments. This scientific gap formed the basis of the present manuscript and explains the rationale for the introduction of cold-tolerant PSB in competitive agronomic practices, including the mechanism of solubilization/mineralization, release of biosensor active biomolecules, molecular engineering of PSB for increasing both P solubilizing/mineralizing efficiency, and host range. The impact of extreme cold on the physiological activities of plants and how plants overcome such stresses is discussed briefly. It is time to enlarge the prospects of psychrophilic/psychrotolerant phosphate biofertilizers and take advantage of their precious, fundamental, and economical but enormous plant growth augmenting potential to ameliorate stress and facilitate crop production to satisfy the food demands of frighteningly growing human populations. The production and application of cold-tolerant P-biofertilizers will recuperate sustainable agriculture in cold adaptive agrosystems.

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Section: Importance Of P and Rationale For Using Cold-active Bacterial Phosphate Biofertilizers In Low-temperature Environmentsmentioning

confidence: 99%

Psychrophilic Bacterial Phosphate-Biofertilizers: A Novel Extremophile for Sustainable Crop Production under Cold Environment

et al. 2021

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“…Microbial participation is carried out by groups of meso- and thermophilic aerobic microorganisms, which provide hydrolysis of polymeric substrates. In various sources, compost microorganisms are represented by genera such as Stenotrophomonas [ 9 ], Alcaligenes [ 10 ], Pseudomonas [ 11 ], Klebsiella [ 12 ], Xanthomonas, Achromobacter [ 13 ], and Caulobacter [ 14 ], and the predominance of bacilli or actinobacteria can be a quality indicator for a composting process [ 8 ]. Representatives of these genera can participate in increasing the release of nitrogen in ammonium forms, and in the suppression of various plant, animal, and human pathogens [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Whole-Genome Sequencing and Biotechnological Potential Assessment of Two Bacterial Strains Isolated from Poultry Farms in Belgorod, Russia

Senchenkov,

Lyakhovchenko,

Nikishin

et al. 2023

Microorganisms

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Bacteria, designated as A1.1 and A1.2, were isolated from poultry waste based on the ability to form ammonia on LB nutrient medium. Whole genome sequencing identified the studied strains as Peribacillus frigoritolerans VKM B-3700D (A1.1) and Bacillus subtilis VKM B-3701D (A1.2) with genome sizes of 5462638 and 4158287 bp, respectively. In the genome of B. subtilis VKM B-3701D, gene clusters of secondary metabolites of bacillin, subtilisin, bacilisin, surfactin, bacilliacin, fengycin, sactipeptide, and ratipeptide (spore killing factor) with potential antimicrobial activity were identified. Clusters of coronimine and peninodin production genes were found in P. frigoritolerans VKM B-3700D. Information on coronimine in bacteria is extremely limited. The study of the individual properties of the strains showed that the cultures are capable of biosynthesis of a number of enzymes, including amylases. The B. subtilis VKM V-3701D inhibited the growth of bacterial test cultures and reduced the growth rate of the mold fungus Aspergillus unguis VKM F-1754 by 70% relative to the control. The antimicrobial activity of P. frigoritolerans VKM V-3700D was insignificant. At the same time, a mixture of cultures P. frigoritolerans VKM B-3700D/B. subtilis VKM B-3701D reduced the growth rate of A. unguis VKM F-1754 by 24.5%. It has been shown that strain A1.1 is able to use nitrogen compounds for assimilation processes. It can be assumed that P. frigoritolerans VKM V-3700D belongs to the group of nitrifying or denitrifying microorganisms, which may be important in developing methods for reducing nitrogen load and eutrophication.

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“…Several researchers have shown that PSB have been isolated from land contaminated with leather tanning industry waste [7] - [11]. However, assays on the viability and phosphate solubilizing activity of PSB in tannery wastewater have not been widely disclosed.…”

Section: Introductionmentioning

confidence: 99%

Implications of Leather Tanning Wastewater Exposure for Soil Bacteria Viability and Phosphate Solubilizing Activity

Ratih

Mujahidin

Setyawan

2022

KLS

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Leather tannery wastewater pollutes the environment because it contains BOD, COD, and chromium at levels above safe thresholds. The main objective of this study was to determine the effect of exposure to tannery wastewater on the viability of the soil PSB community and selected PSB isolates, and to examine the ability of selected bacterial isolates to dissolve phosphate in Picovskaya’s broth medium supplemented with tannery wastewater. The viability of the bacterial community was determined based on their growth in soil exposed to the waste at concentrations of 30, 60 and 100%, under field capacity moisture conditions, while the ability of the isolates to dissolve phosphate was observed using liquid Pikovskaya’s medium which was added to the waste so that the concentration reached 30, 60, and 100%. The bacterial isolates RP-1 and RP-2 were used, which were obtained from the soil surrounding the tannery which was contaminated with leather tanning waste. The parameters that were analyzed were the number of cells and the amount of soluble phosphate. The number of cells was determined through the pourplate method using an agar nutrient medium, and the amount of soluble phoshate was examined using the P chlorostannous reduced molybdophosphoric acid blue method. According to the findings of this study, exposure to effluents reduced PSB viability in the soil. Exposure to waste also negatively affected cell viability and the ability of isolates to solubilize phosphate. Keywords: Wastewater, tannery, viability, ability, phosphate, solubilization

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Alcaligenes aquatilis GTE53: Phosphate solubilising and bioremediation bacterium isolated from new biotope “phosphate sludge enriched-compost”

Cited by 19 publications

References 59 publications

Psychrophilic Bacterial Phosphate-Biofertilizers: A Novel Extremophile for Sustainable Crop Production under Cold Environment

Psychrophilic Bacterial Phosphate-Biofertilizers: A Novel Extremophile for Sustainable Crop Production under Cold Environment

Whole-Genome Sequencing and Biotechnological Potential Assessment of Two Bacterial Strains Isolated from Poultry Farms in Belgorod, Russia

Implications of Leather Tanning Wastewater Exposure for Soil Bacteria Viability and Phosphate Solubilizing Activity

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