Exploring Sustainable Agriculture with Nitrogen-Fixing Cyanobacteria and Nanotechnology

Molecules, Год журнала: 2024, Номер 29(11), С. 2534 - 2534

Опубликована: Май 28, 2024

The symbiotic relationship between nitrogen-fixing cyanobacteria and plants offers a promising avenue for sustainable agricultural practices environmental remediation. This review paper explores the molecular interactions nanoparticles, shedding light on their potential synergies in nanotechnology. Delving into evolutionary history specialized adaptations of cyanobacteria, this highlights pivotal role fixing atmospheric nitrogen, which is crucial ecosystem productivity. discusses unique characteristics metal nanoparticles emerging applications agriculture, including improved nutrient delivery, stress tolerance, disease resistance. It delves complex mechanisms nanoparticle entry plant cells, intracellular transport, localization, uncovering impact root-shoot translocation systemic distribution. Furthermore, elucidates cellular responses to exposure, emphasizing oxidative stress, signaling pathways, enhanced uptake. as carriers essential nutrients implications nutrient-use efficiency crop yield are also explored. Insights modulation responses, resistance, phytoremediation strategies demonstrate multifaceted benefits agriculture. Current trends, prospects, challenges nanotechnology discussed, underscoring need responsible safe utilization. By harnessing power leveraging attributes paves way innovative, sustainable, efficient practices.

Язык: Английский

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Carbonaceous matter in ∼ 3.5 Ga black bedded barite from the Dresser Formation (Pilbara Craton, Western Australia) – Insights into organic cycling on the juvenile Earth

Precambrian Research, Год журнала: 2024, Номер 403, С. 107321 - 107321

Опубликована: Фев. 17, 2024

Carbonaceous matter (CM) in Archean rocks represents a valuable archive for the reconstruction of early life. Here we investigate nature CM preserved ∼ 3.5 Ga old black bedded barites from Dresser Formation (Pilbara Carton, Western Australia). Using light microscopy and high-resolution Raman mapping, three populations were recognized: (i) at edges single growth bands barite crystals (most frequent), (ii) within matrix, (iii) 50–300 µm wide secondary quartz veins that cross-cut barite. spectra inside indicated peak metamorphic temperatures 350 °C, consistent with those reached during main event area 3.3 ago. By contrast, yielded much lower 220 suggesting quartz-vein associated entered after Ga. Near edge X-ray absorption fine structure (NEXAFS) solid-state nuclear magnetic resonance (NMR) revealed highly aromatic aliphatic content, which is line relatively elevated thermal maturity. Catalytic hydropyrolysis (HyPy) did not yield any hydrocarbons detectable gas chromatography–mass spectrometry (GC–MS). Secondary ion mass (SIMS) based δ13C values individual particles ranged − 33.4 ± 1.2 ‰ to 16.5 0.6 are thus accordance biogenic origin, also stromatolitic microbialites Based on these results conclude matrix syngenetic only veins, minor portion total CM, later addition system. Furthermore, discuss different pathways input into barite-forming environment, including cycling biological organic material hydrothermal

Язык: Английский

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Hydrothermal sulfidation of biogenic magnetite produces framboid-like pyrite

Communications Earth & Environment, Год журнала: 2024, Номер 5(1)

Опубликована: Май 15, 2024

Abstract Biogenic magnetite is a potential biosignature for microbial iron cycling in hydrothermal sulfide systems, critical environments unraveling the emergence and early evolution of life. However, preservation biogenic under conditions poorly understood. Here, we show that sulfidation abiogenic (sulfide/iron = 4, 80 °C) yields pyrite with various distinct morphologies, including framboid-like spheroids. We demonstrate variability morphologies resulted from modulation pyritization rates by interrelated effects between organic matter elemental sulfur (crystalline or colloidal). Notably, pyrite, commonly considered fingerprint cycling, was exclusively produced (i.e., matter-associated) iron-cycling microorganisms. Thus, can additionally be taphonomic enabling better understanding Earth’s biosphere deep time.

Язык: Английский

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Recycled Coarse Aggregate from Waste Concrete Strengthened by Microbially Induced Calcium Carbonate Precipitation

Environmental Technology & Innovation, Год журнала: 2024, Номер unknown, С. 103981 - 103981

Опубликована: Дек. 1, 2024

Язык: Английский

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Comparative study on geochemical and thermodynamic characteristics among wormkalk, micrite, thrombolite, and stromatolite

Carbonates and Evaporites, Год журнала: 2025, Номер 40(1)

Опубликована: Фев. 1, 2025

Язык: Английский

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Early diagenetic versus hydrothermal signals in pyrite from ancient metamorphic sediment-hosted massive sulfides – implications for the stability of sulfur and iron isotope records in deep time

Chemical Geology, Год журнала: 2025, Номер unknown, С. 122885 - 122885

Опубликована: Май 1, 2025

Язык: Английский

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Acidophilic sulphate‐reducing bacteria: Diversity, ecophysiology, and applications

Environmental Microbiology Reports, Год журнала: 2024, Номер 16(5)

Опубликована: Окт. 1, 2024

Acidophilic sulphate-reducing bacteria (aSRB) are widespread anaerobic microorganisms that perform dissimilatory sulphate reduction and have key adaptations to tolerate acidic environments (pH <5.0), such as proton impermeability Donnan potential. This diverse prokaryotic group is of interest from physiological, ecological, applicational viewpoints. In this review, we summarize the interactions between aSRB other microbial guilds, syntrophy, their roles in biogeochemical cycling sulphur, iron, carbon, elements. We discuss biotechnological applications treating acid mine drainage (AMD, pH <3), focusing on ability produce biogenic sulphide precipitate metals, particularly context utilizing consortia instead pure isolates. Metal nanoparticles recovered after AMD treatment multiple potential technological uses, including electronics biomedicine, contributing a cost-effective circular economy. The products metabolisms, biominerals isotopes, could also serve biosignatures understand ancient extant life universe. Overall, active components sulphur carbon cycles under conditions, with natural implications for world around us.

Язык: Английский

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Prebiotic synthesis of mineral-bearing microdroplet from inorganic carbon photoreduction at air–water interface

PNAS Nexus, Год журнала: 2023, Номер 2(11)

Опубликована: Ноя. 1, 2023

The origin of life on Earth is an enigmatic and intricate conundrum that has yet to be comprehensively resolved despite recent significant developments within the discipline archaeology geology. Chemically, metal-sulfide minerals are speculated serve as important medium for giving birth in early life, while so far direct evidence support hypothesis highly efficient conversion inorganic carbon into praxiological biomolecules remains scarce. In this work, we provide initial indication sphalerite, employed a typical mineral, shows its enormous capability promoting elementary biomolecule formic acid (HCOOH) airborne mineral-bearing aerosol microdroplet, which over two orders magnitude higher than corresponding conventional bulk-like aqueous phase environment (e.g. river, lake, sea, etc.). This enhancement was further validated by wide range clays, including CuS, NiS, CoS, CdS, MnS, elemental sulfur, Arizona Test Dust, loess, nontronite, montmorillonite. We reveal abundant interface unique physical-chemical features instinct or cloud microdroplets reduces reaction energy barrier reaction, thus leading extremely high HCOOH production (2.52 × 1014 kg year-1). study unfolds unrecognized remarkable contributions considered scheme accumulation prebiotic ancient period Earth.

Язык: Английский

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Abiotic synthesis of graphitic carbons in the Eoarchean Saglek-Hebron metasedimentary rocks

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Июль 6, 2024

Abstract Graphite in metasedimentary rocks of the Eoarchean Saglek-Hebron Gneiss Complex (Canada) is depleted 13 C and has been interpreted as one oldest traces life on Earth. The variation crystallinity this graphitic carbon could possibly confirm effect metamorphism original biomass, but still unexplored. Here, we report specific mineral associations with carbons that also have a range rocks. Petrographic, geochemical spectroscopic analyses banded iron formations suggest poorly crystalline graphite likely deposited from C-H-O fluids derived thermal decomposition syngenetic organic matter, which preserved during prograde metamorphism. In comparison, marble, disseminations co-occur carbonate magnetite disseminations, pointing to abiotic synthesis via decarbonation. Our results thus highlight variably are potential products early Earth, lay groundwork for identifying preservation prebiotic matter through Earth beyond.

Язык: Английский

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Carbon-containing pyrite spherules: mineral biosignatures in black smokers?

European Journal of Mineralogy, Год журнала: 2024, Номер 36(5), С. 813 - 830

Опубликована: Сен. 18, 2024

Abstract. Sulfide- and sulfate-rich hydrothermal vents are involved in Earth's major geochemical cycles. An outstanding scientific question consists of finding out whether certain minerals found chimneys influenced more or less directly by microorganisms living at high temperatures (thermophiles hyperthermophiles) these environments. Here we report the morphological, textural chemical characterization pyrite crystals collected across a section chimney from Trans-Atlantic Geotraverse site, sampled inner, hotter portion to external, cooler portion, providing promising approach search for hyperthermophilic biosignatures. The internal middle portions mainly harbour cube-shaped containing low quantities hydrocarbons thermally matured organic compounds. In contrast, samples external contain spherules composed mosaic slightly disoriented domains that include large amounts material chemically consistent with biogenic These characteristics make them comparable but not identical produced laboratory presence archaea order Thermococcales. Differences larger crystalline Such features could be thermal transformation (or least of) cells. However, it remains impossible completely rule an abiotic origin without further isotopic investigation experimental studies on production compounds under conditions.

Язык: Английский

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