Examinando por Materia "Microorganismos del suelo"

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Changes in bulk and rhizosphere soil microbial diversity communities of native quinoa due to the monocropping in the Peruvian Central Andes
(MDPI, 2023-07-28) Estrada Cañari, Richard; Cosme de la Cruz, Roberto Carlos; Porras Valencia, Angie Tatiana; Reynoso Zárate, Auristela Florencia; Calderon, Constatino; Arbizu Berrocal, Carlos Irvin; Arone, Gregorio J.
Quinoa (Chenopodium quinoa) is a highly nutritious crop that is resistant to adverse conditions. Due to the considerable increase in its commercial production in Andean soils, the plant is suffering the negative effects of monocropping, which reduces its yield. We used for the first time a high-throughput Illumina MiSeq sequencing approach to explore the composition, diversity, and functions of fungal and bacterial communities of the bulk and rhizosphere in soils of native C. quinoa affected by monocropping in the central Andes of Peru. The results showed that the bacterial and fungal community structure among the treatments was significantly changed by the monocropping and the types of soil (rhizosphere and bulk). Also, in soils subjected to monocropping, there was an increase in Actinobacteria and a decrease in Proteobacteria, and the reduction in the presence of Ascomycota and the increase in Basidiomycota. By alpha-diversity indices, lower values of bacteria and fungi were observed in the monoculture option compared to the soil not affected by monocropping, and sometimes significant differences were found between both. We detected differentially abundant phytopathogenic fungi and bacteria with growth-stimulating effects on plants. Also, we denoted a decrease in the abundance of the functional predictions in bacteria in the monocropped soils. This research will serve as a starting point to explore the importance and effects of microorganisms in degraded soils and their impact on the growth and quality of quinoa crops.
Multiomics approaches on extremophiles and their application in the biological management of e-waste
(John Wiley & Sons, Inc., 2023-12-23) Hualpa Cutipa, Edwin; Solórzano Acosta, Richard Andi; Landa Acuña, Daniela; Mendoza León, Janelle
The latest technological advances in the current era have allowed development in the different areas and disciplines of science, leading to a series of discoveries that enhance current scientific knowledge. These advances are largely due to the rapid evolution in the manufacture of increasingly sophisticated electronic devices. However, the consumption and disposal of electronic devices generate environmental pollution problems (e-waste) in different matrices of the ecosystem, linked to an accelerated demographic growth. A variety of techniques have been used to reduce the outcome of e-waste. Bioremediation is an environmental and eco-friendly strategy based on the use of the metabolic capabilities of organisms and microorganisms. For a better application of these environmental strategies, the application of molecular strategies is proposed under a multiomic approach, which involves the global and integrated study of the molecular components resulting from the interaction of organisms and microorganisms with waste products. Therefore, the aim of this chapter is to provide details on the microbes that degrade electronic waste (e-waste) and their study under a multiomic perspective (genomics, transcriptomics, metabolomics, and proteomics).
Traditional potato tillage systems in the Peruvian Andes impact bacterial diversity, evenness, community composition, and functions in soil microbiomes
(Nature Publishing Group, 2024-02-17) García Serquén, Aura Liz; Chumbe Nolasco, Lenin Dimitriv; Navarrete, Acacio Aparecido; Girón Aguilar, Rita Carolina; Gutiérrez Reynoso, Dina Lida
The soil microbiome, a crucial component of agricultural ecosystems, plays a pivotal role in crop production and ecosystem functioning. However, its response to traditional tillage systems in potato cultivation in the Peruvian highlands is still far from understood. Here, ecological and functional aspects of the bacterial community were analyzed based on soil samples from two traditional tillage systems: 'chiwa' (minimal tillage) and 'barbecho' (full tillage), in the Huanuco region of the Peruvian central Andes. Similar soil bacterial community composition was shown for minimal tillage system, but it was heterogeneous for full tillage system. This soil bacterial community composition under full tillage system may be attributed to stochastic, and a more dynamic environment within this tillage system. 'Chiwa' and 'barbecho' soils harbored distinct bacterial genera into their communities, indicating their potential as bioindicators of traditional tillage effects. Functional analysis revealed common metabolic pathways in both tillage systems, with differences in anaerobic pathways in 'chiwa' and more diverse pathways in 'barbecho'. These findings open the possibilities to explore microbial bioindicators for minimal and full tillage systems, which are in relationship with healthy soil, and they can be used to propose adequate tillage systems for the sowing of potatoes in Peru.