| |
|
|
|
Registro completo
|
|
Biblioteca (s) : |
INIA Las Brujas. |
|
Fecha : |
17/02/2025 |
|
Actualizado : |
17/02/2025 |
|
Tipo de producción científica : |
Artículos Indexados |
|
Autor : |
MARTÍNEZ, S. |
|
Afiliación : |
SEBASTIÁN MARTÍNEZ KOPP, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ORCID: https://orcid.org/0000-0003-0455-5823. |
|
Título : |
Microbial community structure in rice, crops, and pastures rotation systems with different intensification levels in the temperate region of Uruguay. [Preprint]. |
|
Complemento del título : |
New results. |
|
Fecha de publicación : |
2021 |
|
Fuente / Imprenta : |
bioRxiv, 2021. doi: https://doi.org/10.1101/2021.05.24.445164 -- OPEN ACCESS. |
|
DOI : |
10.1101/2021.05.24.445164 |
|
Idioma : |
Inglés |
|
Notas : |
Article history: 24 May 2021. -- Correspondence: smartinez@inia.org.uy -- Supplementary material: https://www.biorxiv.org/content/10.1101/2021.05.24.445164v1.supplementary-material -- This article is a preprint and has not been certified by peer review. -- The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license (http://creativecommons.org/licenses/by-nc-nd/4.0/ ). -- |
|
Contenido : |
ABSTRACT.- Rice is an important crop in Uruguay associated mostly with livestock production in a rice and pasture rotation system since the 1920s. However, in recent years there has been interest in intensifying the production in some of these systems to satisfy market demands and increase income. Intensification occurs by augmenting the rice frequency in the rotation, including new crops like sorghum and soybean, or shortening the pasture phase. A long-term experiment was established in 2012 in the main rice producing area of Uruguay with the objective to study the impact of intensification in rice rotations. After the first cycle of rotation soils from seven rotation phases were sampled and microbial communities were studied by means of high-throughput sequencing of Illumina NovaSeq 6000. Archaeal/bacterial and fungal community composition were studied (16S rRNA and 18S gene regions) detecting 3662 and 807 bacterial and fungal Operational Taxonomic Units (OTUs), respectively. Actinobacteria, Firmicutes and Proteobacteria were the most common bacterial phyla. Among them, only Proteobacteria differed significantly between rotations. Although most fungal OTUs were unidentified, Ascomycota, Basidiomycota and Mucoromycota were the most abundant fungal classes within identified taxa. Bacterial communities differed between rotations forming three groups according to the percentage of rice in the system. Fungal communities clustered in four groups, although not well differentiated, and mostly associated with the antecessor crop. Only P and C:N varied between rotations among soil physicochemical variables after six years, and individual bacterial OTUs appeared weakly influenced by P, pH, Mg and fungal OTUs by P. The results suggest that after six years, bacteria/archaeal communities were influenced by the time with rice in the rotation, and fungal communities were more influenced by the antecessor crop. More studies are needed to associate fungal communities with certain rotational or environmental variables. Some taxa were associated with a particular rotation, and some bacterial taxa were identified as biomarkers. Fungal indicator taxa were not identified at the species level for any rotation. MenosABSTRACT.- Rice is an important crop in Uruguay associated mostly with livestock production in a rice and pasture rotation system since the 1920s. However, in recent years there has been interest in intensifying the production in some of these systems to satisfy market demands and increase income. Intensification occurs by augmenting the rice frequency in the rotation, including new crops like sorghum and soybean, or shortening the pasture phase. A long-term experiment was established in 2012 in the main rice producing area of Uruguay with the objective to study the impact of intensification in rice rotations. After the first cycle of rotation soils from seven rotation phases were sampled and microbial communities were studied by means of high-throughput sequencing of Illumina NovaSeq 6000. Archaeal/bacterial and fungal community composition were studied (16S rRNA and 18S gene regions) detecting 3662 and 807 bacterial and fungal Operational Taxonomic Units (OTUs), respectively. Actinobacteria, Firmicutes and Proteobacteria were the most common bacterial phyla. Among them, only Proteobacteria differed significantly between rotations. Although most fungal OTUs were unidentified, Ascomycota, Basidiomycota and Mucoromycota were the most abundant fungal classes within identified taxa. Bacterial communities differed between rotations forming three groups according to the percentage of rice in the system. Fungal communities clustered in four groups, although not well differentiated... Presentar Todo |
|
Palabras claves : |
Bacteria; Cover crops; Fungi; Long-term experiment; NovaSeq 6000; SISTEMA ARROZ-GANADERÍA - INIA; Sustainable agriculture. |
|
Asunto categoría : |
F01 Cultivo |
|
URL : |
https://www.biorxiv.org/content/10.1101/2021.05.24.445164v1.full.pdf
|
|
Marc : |
LEADER 03521naa a2200229 a 4500
001 1065057
005 2025-02-17
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1101/2021.05.24.445164$2DOI
100 1 $aMARTÍNEZ, S.
245 $aMicrobial community structure in rice, crops, and pastures rotation systems with different intensification levels in the temperate region of Uruguay. [Preprint].$h[electronic resource]
260 $c2021
500 $aArticle history: 24 May 2021. -- Correspondence: smartinez@inia.org.uy -- Supplementary material: https://www.biorxiv.org/content/10.1101/2021.05.24.445164v1.supplementary-material -- This article is a preprint and has not been certified by peer review. -- The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license (http://creativecommons.org/licenses/by-nc-nd/4.0/ ). --
520 $aABSTRACT.- Rice is an important crop in Uruguay associated mostly with livestock production in a rice and pasture rotation system since the 1920s. However, in recent years there has been interest in intensifying the production in some of these systems to satisfy market demands and increase income. Intensification occurs by augmenting the rice frequency in the rotation, including new crops like sorghum and soybean, or shortening the pasture phase. A long-term experiment was established in 2012 in the main rice producing area of Uruguay with the objective to study the impact of intensification in rice rotations. After the first cycle of rotation soils from seven rotation phases were sampled and microbial communities were studied by means of high-throughput sequencing of Illumina NovaSeq 6000. Archaeal/bacterial and fungal community composition were studied (16S rRNA and 18S gene regions) detecting 3662 and 807 bacterial and fungal Operational Taxonomic Units (OTUs), respectively. Actinobacteria, Firmicutes and Proteobacteria were the most common bacterial phyla. Among them, only Proteobacteria differed significantly between rotations. Although most fungal OTUs were unidentified, Ascomycota, Basidiomycota and Mucoromycota were the most abundant fungal classes within identified taxa. Bacterial communities differed between rotations forming three groups according to the percentage of rice in the system. Fungal communities clustered in four groups, although not well differentiated, and mostly associated with the antecessor crop. Only P and C:N varied between rotations among soil physicochemical variables after six years, and individual bacterial OTUs appeared weakly influenced by P, pH, Mg and fungal OTUs by P. The results suggest that after six years, bacteria/archaeal communities were influenced by the time with rice in the rotation, and fungal communities were more influenced by the antecessor crop. More studies are needed to associate fungal communities with certain rotational or environmental variables. Some taxa were associated with a particular rotation, and some bacterial taxa were identified as biomarkers. Fungal indicator taxa were not identified at the species level for any rotation.
653 $aBacteria
653 $aCover crops
653 $aFungi
653 $aLong-term experiment
653 $aNovaSeq 6000
653 $aSISTEMA ARROZ-GANADERÍA - INIA
653 $aSustainable agriculture
773 $tbioRxiv, 2021. doi: https://doi.org/10.1101/2021.05.24.445164 -- OPEN ACCESS.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Las Brujas (LB) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
| Registros recuperados : 175 | |
| 13. |  | MARTÍNEZ, S.; ESCALANTE, F. Control of stem rot of rice in different rice rotations. (IPM2 P10). [Abstract]. XIX International Plant Protection Congress, IPPC 2019. 10-14 November 2019, Hyderabad, Telangana, India. "Crop Protection to Outsmart Climate Change for Food Security & Environmental Conservation". Organized by ICRISAT (International Crops Research Institute for the Semi-Arid Tropics). In: INTERNATIONAL PLANT PROTECTION CONGRESS, 19, 2019, Hyderabad, India. Abstract Book... Hyderabad: IPPC, 2019. p. 288.| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA Las Brujas. |
|    |
| 18. | | MARTÍNEZ, S.; ESCALANTE, F. Dinámica de enfermedades de tallo y vaina en sistemas de rotaciones arroceras, primeras cuatro zafras. ln: JORNADA ANUAL ARROZ, 2016, INIA TREINTA Y TRES, TREINTA Y TRES, UY. Arroz: resultados experimentales 2015-2016. Treinta y Tres, (Uruguay): INIA, 2016. cap. 4, p. 4-6. (INIA Serie Actividades de Difusión; 765)| Biblioteca(s): INIA Tacuarembó; INIA Treinta y Tres. |
| |
| Registros recuperados : 175 | |
|
| Expresión de búsqueda válido. Check! |
|
|
