The roles of calcium signaling and calcium deposition in microbial multicellularity

Kolodkin‐Gal, Ilana; Parsek, Matthew R.; Patrauchan, Marianna A.

doi:10.1016/j.tim.2023.06.005

Cited by 11 publications

(2 citation statements)

References 94 publications

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“…Ca 2+ can regulate bacterial gene expression and biofilm synthesis (Kolodkin-Gal et al 2023 ), activate the core functional microorganisms in compost, and increase the diversity and complexity of microorganisms (Wang et al 2022 ). Mg 2+ is an activator of enzymes, which can promote microbial metabolism (Vithani et al 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Ca(H2PO4)2 and MgSO4 activated nitrogen-related bacteria and genes in thermophilic stage of compost

Jiang,

Dai,

Wang

et al. 2024

Appl Microbiol Biotechnol

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This study was conducted to investigate the effects of Ca(H2PO4)2 and MgSO4 on the bacterial community and nitrogen metabolism genes in the aerobic composting of pig manure. The experimental treatments were set up as control (C), 1% Ca(H2PO4)2 + 2% MgSO4 (CaPM1), and 1.5% Ca(H2PO4)2 + 3% MgSO4 (CaPM2), which were used at the end of composting for potting trials. The results showed that Ca(H2PO4)2 and MgSO4 played an excellent role in retaining nitrogen and increasing the alkali-hydrolyzed nitrogen (AN), available phosphorus (AP), and available potassium (AK) contents of the composts. Adding Ca(H2PO4)2 and MgSO4 changed the microbial community structure of the compost. The microorganisms associated with nitrogen retention were activated. The complexity of the microbial network was enhanced. Genetic prediction analysis showed that the addition of Ca(H2PO4)2 and MgSO4 reduced the accumulation of nitroso-nitrogen and the process of denitrification. At the same time, despite the reduction of genes related to nitrogen fixation, the conversion of ammonia to nitrogenous organic compounds was promoted and the stability of nitrogen was increased. Mantel test analysis showed that Ca(H2PO4)2 and MgSO4 can affect nitrogen transformation-related bacteria and thus indirectly affect nitrogen metabolism genes by influencing the temperature, pH, and organic matter (OM) of the compost and also directly affected nitrogen metabolism genes through PO43− and Mg2+. The pot experiment showed that composting with 1.5% Ca(H2PO4)2 + 3% MgSO4 produced the compost product that improved the growth yield and nutrient content of cilantro and increased the fertility of the soil. In conclusion, Ca(H2PO4)2 and MgSO4 reduces the loss of nitrogen from compost, activates nitrogen-related bacteria and genes in the thermophilic phase of composting, and improves the fertilizer efficiency of compost products. Key points • Ca(H2PO4)2 and MgSO4 reduced the nitrogen loss and improved the compost effect • Activated nitrogen-related bacteria and altered nitrogen metabolism genes • Improved the yield and quality of cilantro and fertility of soil

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Section: Discussionmentioning

confidence: 99%

Ca(H2PO4)2 and MgSO4 activated nitrogen-related bacteria and genes in thermophilic stage of compost

Jiang,

Dai,

Wang

et al. 2024

Appl Microbiol Biotechnol

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“…Before, we and others highlighted the usefulness of microbial biomineralization in genetically manipulatable bacteria for this process. While the initial focus was on designing the bacterially produced cementitious materials (Kolodkin-Gal et al, 2023;Dhami et al, 2013;Alghamdi, 2022), it became clear that reducing the costs and increasing the use of bacteria for cement production is more complex: The strains should be chosen or designed to endure the harsh environment of the cement well while performing the enzymatic processes that promote biomineralization, the control 4…”

Section: Discussionmentioning

confidence: 99%

Sustainable construction: Toward growing biocement with synthetic biology

Dorfan,

Morris,

Shohat

et al. 2023

Res. dir. Biotechnol. des.

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The built environment contributes to global carbon dioxide emissions with carbon-emitting building materials and construction processes. While achieving carbon-neutral construction is not feasible with conventional construction methods, microbial-based construction processes were suggested over three decades ago to reduce carbon dioxide emissions. With time, questions regarding scaling, predictability, and the applicability of microbial growth and biomass production emerged and still needed to be resolved to allow manufacturing. Within this opinion, we will discuss what can be achieved not to ‘grow a building’ per se but to ‘grow environmentally friendly biocement’. Elaborate pathways leading to the formation of cementitious materials by genetically manipulatable microorganisms have been described so far, providing options to enhance the suitability of these pathways for construction with synthetic biology and bio-convergence. These processes can also be combined with additional beneficial properties of cement-producing organisms, such as antimicrobial properties and carbon fixation by photosynthesis. Therefore, while we cannot yet ’grow a building’, we can grow and design biocement for the construction industry.

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Antimicrobial Proficiency of Amlodipine: Investigating its Impact on Pseudomonas spp. in Urinary Tract Infections

Sharma,

Kalra,

Tripathi

et al. 2024

Indian J Microbiol

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The roles of calcium signaling and calcium deposition in microbial multicellularity

Cited by 11 publications

References 94 publications

Ca(H2PO4)2 and MgSO4 activated nitrogen-related bacteria and genes in thermophilic stage of compost

Ca(H2PO4)2 and MgSO4 activated nitrogen-related bacteria and genes in thermophilic stage of compost

Sustainable construction: Toward growing biocement with synthetic biology

Antimicrobial Proficiency of Amlodipine: Investigating its Impact on Pseudomonas spp. in Urinary Tract Infections

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