Efecto de enmiendas orgánicas sobre las poblaciones microbianas de la rizosfera del cultivo de quinua (<i>Chenopodium quinoa</i> Willd.) en el altiplano Sur de Bolivia

Paco-Pérez, Víctor; Guzmán-Vega, Gunnar-David

doi:10.36610/j.jsab.2019.070100032

Cited by 4 publications

(1 citation statement)

References 28 publications

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“…This has prompted several physiological and agronomical studies on this crop, including some in which they use mutiomics approaches (Huan et al, 2022 ; Poza‐Viejo et al, 2023 ; Rollano‐Peñaloza et al, 2021 ). However, only a very few works have characterized the quinoa‐associated microorganisms up to date (mainly describing roles in pathogenic disease control and nutrient solubilization), with none of them analysing the role of the genotypic factor or the environmental conditions determining quinoa‐bacteria associations (Paco‐Pérez & Guzmán‐Vega, 2019 ; Rafique et al, 2022 ; Zahoor et al, 2022 ). Hence, considering that plant–microbiome interactions are essential for crop survival (Trivedi et al, 2020 ), it can be assumed that they are a key factor to achieve environmental adaptation, particularly relevant when aiming at introducing new crop species that can contribute to the diversification of our agrifood system (Mccouch & Rieseberg, 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Unveiling changes in rhizosphere‐associated bacteria linked to the genotype and water stress in quinoa

Maestro‐Gaitán,

Granado‐Rodríguez,

Redondo‐Nieto

et al. 2023

Microbial Biotechnology

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Drought is among the main abiotic factors causing agronomical losses worldwide. To minimize its impact, several strategies have been proposed, including the use of plant growth‐promoting bacteria (PGPBs), as they have demonstrated roles in counteracting abiotic stress. This aspect has been little explored in emergent crops such as quinoa, which has the potential to contribute to reducing food insecurity. Thus, here we hypothesize that the genotype, water environment and the type of inoculant are determining factors in shaping quinoa rhizosphere bacterial communities, affecting plant performance. To address this, two different quinoa cultivars (with contrasting water stress tolerance), two water conditions (optimal and limiting water conditions) and different soil infusions were used to define the relevance of these factors. Different bacterial families that vary among genotypes and water conditions were identified. Certain families were enriched under water stress conditions, such as the Nocardioidaceae, highly present in the water‐sensitive cultivar F15, or the Pseudomonadaceae, Burkholderiaceae and Sphingomonadaceae, more abundant in the tolerant cultivar F16, which also showed larger total polyphenol content. These changes demonstrate that the genotype and environment highly contribute to shaping the root‐inhabiting bacteria in quinoa, and they suggest that this plant species is a great source of PGPBs for utilization under water‐liming conditions.

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