Publications by authors named "Patricio Javier Barra"

Article Synopsis
  • Phosphorus is an essential nutrient for plants, but its availability in soil is often limited due to being locked in insoluble forms.
  • Phosphate solubilizing bacteria (phosphobacteria) like Serratia sp. RJAL6, Klebsiella sp. RCJ4, and Enterobacter sp. 198 can help convert these forms into plant-accessible phosphates and have shown promise in promoting plant growth, particularly under stress and nutrient deficiency.
  • Genomic analysis of these bacteria revealed important genes related to phosphorus solubilization and growth promotion, suggesting that Serratia sp. RJAL6 may be classified as a new species and holds potential as a biofertilizer in agriculture.
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Aluminum (Al)-tolerant phosphobacteria enhance plant growth in acidic soils by improving Al complexing and phosphorus (P) availability. However, the impact of Al stress and P deficiency on bacterial biochemistry and physiology remains unclear. We investigated the single and mutual effects of Al stress (10 mM) and P deficiency (0.

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The present study examined the biosynthesis and characterization of selenium nanoparticles (SeNPs) using two contrasting endophytic selenobacteria, one Gram-positive ( sp. E5 identified as ) and one Gram-negative ( sp. EC5.

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One of the most challenging aspects of long-term research based on microorganisms is the maintenance of isolates under ex situ conditions, particularly the conservation of phytopathological characteristics. Our research group has worked for more than 10 years with var. (Ggt), the main biotic factor affecting wheat.

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Thraustochytrids are aquatic unicellular protists organisms that represent an important reservoir of a wide range of bioactive compounds, such as essential polyunsaturated fatty acids (PUFAs) such as arachidonic acid (ARA), docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), which are involved in the regulation of the immune system. In this study, we explore the use of co-cultures of sp. and bacteria as a biotechnological tool capable of stimulating PUFA bioaccumulation.

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The major priority of research in the present day is to conserve the environment by reducing GHG emissions. A proposed solution by an expert panel from 195 countries meeting at COP 21 was to increase global SOC stocks by 0.4% year to compensate for GHG emissions, the ' agreement.

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Crop migration caused by climatic events has favored the emergence of new soilborne diseases, resulting in the colonization of new niches (emerging infectious diseases, EIDs). Soilborne pathogens are extremely persistent in the environment. This is in large part due to their ability to reside in the soil for a long time, even without a host plant, using survival several strategies.

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var. (Ggt) is the main soilborne factor that affects wheat production around the world. Recently we reported the occurrence of six suppressive soils in monoculture areas from indigenous "Mapuche" communities, and evidenced that the suppression relied on the biotic component of those soils.

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