Microalgal and Nitrogen-Fixing Bacterial Consortia: From Interaction to Biotechnological Potential

Plants, Journal Year: 2023, Volume and Issue: 12(13), P. 2476 - 2476

Published: June 28, 2023

Microalgae are used in various biotechnological processes, such as biofuel production due to their high biomass yields, agriculture biofertilizers, of high-value-added products, decontamination wastewater, or biological models for carbon sequestration. The number these applications is increasing, and such, any advances that contribute reducing costs increasing economic profitability can have a significant impact. Nitrogen fixing organisms, often called diazotroph, also great potential, mainly an alternative chemical fertilizers. Microbial consortia typically perform more complex tasks than monocultures execute functions challenging even impossible individual strains species. Interestingly, microalgae diazotrophic organisms capable embrace different types symbiotic associations. Certain corals lichens exhibit this relationship nature, which enhances fitness. However, be artificially created laboratory conditions with the objective enhancing some processes each organism carries out independently. As result, utilization garnering interest potential yields biomass, well producing derived products serving purposes. This review makes effort examine associations aim highlighting improving processes.

Language: Английский

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Exchange or Eliminate: The Secrets of Algal-Bacterial Relationships

Plants, Journal Year: 2024, Volume and Issue: 13(6), P. 829 - 829

Published: March 13, 2024

Algae and bacteria have co-occurred coevolved in common habitats for hundreds of millions years, fostering specific associations interactions such as mutualism or antagonism. These are shaped through exchanges primary secondary metabolites provided by one the partners. Metabolites, N-sources vitamins, can be beneficial to partner they may assimilated chemotaxis towards producing these metabolites. Other metabolites, especially many natural products synthesized bacteria, act toxins damage kill partner. For instance, green microalga Chlamydomonas reinhardtii establishes a mutualistic partnership with Methylobacterium, stark contrast its antagonistic relationship toxin Pseudomonas protegens. In other cases, coccolithophore haptophyte alga Phaeobacter bacterium, same bacterium even subject both processes, depending on secreted bacterial algal Some also influence morphology micronutrients, is observed some macroalgae. This review focuses algal-bacterial micro- macroalgal models from marine, freshwater, terrestrial environments summarizes advances field. It highlights effects temperature it presently known.

Language: Английский

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The Microalgae <em>Chlamydomonas </em>for Bioremediation and Bioproduct Production

Published: June 3, 2024

The extensive metabolic diversity of microalgae, coupled with their rapid growth rates and cost-effective production, position these organisms as highly promising resources for a wide range biotechnological applications. These characteristics allow microalgae to address crucial needs in both the agricultural, medical, industrial sectors. Microalgae are proving be val-uable various fields, including remediation diverse wastewater types, production biofuels biofertilizers, extraction products from biomass. For decades, microalga Chlamydomonas has been widely used fundamental research model organism areas such photosynthesis, respiration, sulfur phosphorus metabolism, nitrogen flagella synthesis, among others. However, recent years, potential tool bioremediation, biofertilization, biomass, bio-products increasingly recognized. Bioremediation using presents significant sustainable reduction contaminants fa-cilitates resource recovery valorization microalgal offering important economic benefits. also established itself platform va-riety biotechnologically interesting products, different types biofuels, high-value-added products. aim this review is achieve comprehensive understanding aspects, explore interrelationship, which would offer environmental advantages.

Language: Английский

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A mutualistic bacterium rescues a green alga from an antagonist

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(15)

Published: April 3, 2024

Photosynthetic protists, known as microalgae, are key contributors to primary production on Earth. Since early in evolution, they coexist with bacteria nature, and their mode of interaction shapes ecosystems. We have recently shown that the bacterium Pseudomonas protegens acts algicidal microalga Chlamydomonas reinhardtii. It secretes a cyclic lipopeptide polyyne deflagellate, blind, lyse algae [P. Aiyar et al. , Nat. Commun. 8 1756 (2017) V. Hotter Proc. Natl. Acad. Sci. U.S.A. 118 e2107695118 (2021)]. Here, we report about Mycetocola lacteus, which establishes mutualistic relationship C. reinhardtii helper. While M. lacteus enhances algal growth, it receives methionine needed organic sulfur vitamins B 1 3 5 from algae. In tripartite cultures alga antagonistic P. aids surviving bacterial attack. By combining synthetic natural product chemistry high-resolution mass spectrometry an Ca 2+ reporter line, found rescues by cleaving ester bond involved. The resulting linearized seco acid does not trigger cytosolic homeostasis imbalance leads deflagellation. Thus, remain motile, can swim away survive All three involved genera cooccur nature. Remarkably, related species also act antagonistically against or helper cultures.

Language: Английский

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Significance and Applications of the Microalgae Chlamydomonas and its Bacterial Consortia

Published: June 14, 2024

The wide metabolic diversity of microalgae, their fast growth rates, and cost-effective production make these organisms highly promising resources for a variety biotechnological applications, addressing critical needs in industry, agriculture, medicine. utilization microalgae consortia with bacteria is proving to be valuable different fields, including treating various types wastewaters, producing biofertilizers, extracting products from biomass. Monoculture the Chlamydomonas has been prominent research model many years, extensively utilized studying photosynthesis, sulfur phosphorus metabolism, nitrogen respiration, flagella synthesis, among others. Recent re-search increasingly recognized potential Chlamydomonas-bacteria as bio-technological tool applications. Bioremediation wastewater using Chlamydomonas, its bacterial presents significant sustainable reduction contam-inants, while also facilitating resource recovery valorization microalgal Using biofertilizers can offers several benefits, such en-hancing crop yield, protecting crops, maintaining soil fertility stability, aiding CO2 miti-gation, contributing agriculture practices. Chlamydomonas-bacterial play role high-value products, particularly biofuel H2 production. This review aims achieve comprehensive understanding po-tential monoculture consortia, identifying current proposing new development directions maximize potential.

Language: Английский

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Microalgal and Nitrogen-Fixing Bacterial Consortia: From Interaction to Biotechnological Potential

Published: May 22, 2023

Microalgae are used in various biotechnological processes, such as biofuel production due to their high biomass yields, agriculture biofertilizers, of high-value-added products, de-contamination wastewater, or biological models for carbon sequestration. The number these applications is increasing, and such, any advances that contribute reducing costs increasing economic profitability can have a significant impact. Nitrogen fixing organisms, often called diazotroph, also great potential, mainly agri-culture an alternative chemical fertilizers. Microbial consortia typically perform more com-plex tasks than monocultures execute functions challenging even impossible individual strains species. Interestingly, microalgae diazotrophic organisms capable embrace different types symbiotic associations. Certain corals lichens exhibit this sym-biotic relationship nature, which enhances fitness. However, be artificially created laboratory conditions with the objective enhancing some biotech-nological processes each organism carries out independently. As result, utilization garnering interest potential yields biomass, well producing derived products serving purposes. This review makes effort examine associations aim highlighting improving processes.

Language: Английский

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Portable, Cost-Effective Uv-Vis-Nir Microspectrophotometer for Absorption and Fluorescence Microscopy and Spectroscopy

Published: Jan. 1, 2025

Language: Английский

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Symbiotic microalgae and microbes: a new frontier in saline agriculture

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: April 22, 2025

With the growing human population worldwide, innovative agricultural development is needed to meet food security needs. However, this has inadvertently led problematic irrigation practices and overuse of agrochemicals. Such can exacerbate soil salinization, which prevents plant growth. As a progressively widespread escalating problem, salinization poses major threat global security. Compared with traditional use microalgae or microorganisms that act on growth, microalgae–microorganism symbiosis significant advantages in promoting Microalgae work together provide wide range nutrients required by plants, they exhibit nutrient complementarity, supports Here, potential microalgae–microbial for enhancing salt tolerance was investigated. Our review demonstrated metabolic complementarity between enhance tolerance. The diversity symbiotic system improve ecosystem stability resistance reduce incidence disease under stress. These systems produce bioactive substances (e.g., phytohormones) promote crop yield, structure increasing organic matter improving water storage capacity fertility. Exploiting synergistic effects beneficial biotechnological applications offer novel solutions saline agriculture mitigate deleterious salinity health yield. there are several implementation challenges, such as allelopathic interactions autotoxicity. To make microalgae–bacteria consortia economically viable applications, optimal strains species need be identified strategies employed obtain sufficient biomass cost-effective manner. By elucidating mechanisms, ecological stability, resource utilization systems, clarifies stress responses promotes shift saline–alkali from single bioremediation systematic engineering.

Language: Английский

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The Microalgae Chlamydomonas for Bioremediation and Bioproduct Production

Cells, Journal Year: 2024, Volume and Issue: 13(13), P. 1137 - 1137

Published: July 2, 2024

The extensive metabolic diversity of microalgae, coupled with their rapid growth rates and cost-effective production, position these organisms as highly promising resources for a wide range biotechnological applications. These characteristics allow microalgae to address crucial needs in the agricultural, medical, industrial sectors. Microalgae are proving be valuable various fields, including remediation diverse wastewater types, production biofuels biofertilizers, extraction products from biomass. For decades, microalga

Language: Английский

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Chlamydomonas reinhardtii—A Reference Microorganism for Eukaryotic Molybdenum Metabolism

Microorganisms, Journal Year: 2023, Volume and Issue: 11(7), P. 1671 - 1671

Published: June 27, 2023

Molybdenum (Mo) is vital for the activity of a small but essential group enzymes called molybdoenzymes. So far, specifically five molybdoenzymes have been discovered in eukaryotes: nitrate reductase, sulfite oxidase, xanthine dehydrogenase, aldehyde and mARC. In order to become biologically active, Mo must be chelated pterin, forming so-called cofactor (Moco). Deficiency or mutation any genes involved Moco biosynthesis results simultaneous loss all molybdoenzymes, fully partially preventing normal development affected organism. To prevent this, different mechanisms homeostasis finely regulated. Chlamydomonas reinhardtii unicellular, photosynthetic, eukaryotic microalga that has produced fundamental advances key steps over last 30 years, which extrapolated higher organisms, both plants animals. These include identification first two molybdate transporters eukaryotes (MOT1 MOT2), characterization biosynthesis, enzyme protects transfers (MCP1), mARC plants, discovery crucial role reductase–mARC complex plant nitric oxide production. This review aims provide comprehensive summary progress achieved using C. as model organism propose how this can continue improving with advancements field future.

Language: Английский

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