Native legumes of the Farrapos protected area in Uruguay establish selective associations with rhizobia in their natural habitat

Pereira-Gómez, Marianoel; Ríos, Cecilia; Zabaleta, María Eléxpuru; Lagurara, Paula; Galvalisi, Umberto; Iccardi, Paola; Azziz, Gastón; Battistoni, Federico; Platero, Raúl; Fabiano, Elena

doi:10.1016/j.soilbio.2020.107854

Cited by 12 publications

(7 citation statements)

References 38 publications

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“…Martínez-Romero y Caballero-Mellado (1996) afirman que la especificidad de leguminosas rastreras sucede con mayor facilidad cuando la leguminosa es originaria del lugar de los mismos suelos donde se encuentran los rizobios. Estudios en humedales (Pereira-Gómez et al, 2020), concluyeron que la planta hospedera, así como el ambiente, son factores clave que impulsan la especificidad en la asociación simbiótica entre leguminosas y rizobios en la naturaleza, y que cada especie de leguminosa alberga un género específico de rizobio. Así que Inga spp.…”

Section: Análisis Cuantitativounclassified

“…es Bradyrhizobium spp., i.e. Inga edulis Mart, Inga marginata Willd., Inga thibaudiana DC., Inga samanensis L. Uribe, Inga laurina Willd., I. oerstediana e I. vera (Andrews and Andrews, 2017;Faria and Silva, 2007;Grossman et al, 2006;Leblanc et al, 2005;Pereira-Gómez et al, 2020;de Silva et al, 2014). En el caso de I. laurina, en el Cerrado de la región Amazónica, se registró la especie Bradyrhizobium novedosa a la que se le denominó B. ingae sp.…”

Section: Análisis Cuantitativounclassified

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FACTORES QUE AFECTAN LA FIJACIÓN DE NITRÓGENO EN EL SISTEMA Inga spp. -RIZOBIOS EN CAFETALES DE SOMBRA

Velasco-Trejo

Alarcón-Gutiérrez

García-Pérez

et al. 2023

Trop Subtrop Agroecosyst

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Background. The results of a review on the factors that affect nitrogen fixation in the Inga-café system are presented. The nitrogen contribution that the Inga Miller tree genus provides to shade coffee plantations and the factors that affect its stability in biological nitrogen fixation are scarcely recognized. This work delves into the ecological factors and glyphosate herbicides that can affect the symbiosis of Inga spp. with diazotrophic bacteria in their roots (rhizobia), which form nodules and carry out biological nitrogen fixation. Methodology. Different information sources such as EBSCO, Scopus and Google Schoolar were reviewed, with logical or Boolean data search. 183 papers were used to address the factors that affect the symbiosis between trees of the Inga genus and rhizobia. The findings were organized in: Inga Miller taxonomy, shade coffee plantations with Inga spp., symbiosis between Inga spp. and Bradyrhizobium spp., ecological factors that affect the functioning of the Inga spp.-rhizobia symbiosis and the agrochemical factor: glyphosate herbicide. Results. The genus Inga is recognized as a clade Mimosoideae nested in the subfamily Caesalpinioideae. Shade coffee plantations with Inga are established below 23º N and 30º S, up to 3,100 m.a.s.l. and the symbiont genus is predominantly Bradyrhizobium spp. whose ecological limits of Inga spp-rhizobia were: altitude [988.7-1,381.5 m.a.s.l.], annual precipitation [2,048.4-2,064.36 mm], temperature [20.39-21.93 ºC] and soil pH [4.88-5.42 pH]. Glyphosated herbicides, as an external stimulus, can reduce the benefit of biological nitrogen fixation and erode the soil by keeping it devoid of vegetation. Additionally, some Bradyrhizobium spp. (thiO gene), which oxidizes glyphosate to aminomethylphosphonic acid (AMPA), could be a potential glyphosate degrader in the soil. Implications. Shade coffee plantations with 205-250 trees per hectare of Inga spp. allow fixing around 45 kg of N ha-1 year-1. This review may allow the adoption of new observational or experimental studies of the Inga spp.-rhizobia symbiosis, to approach the performance that favors the biological fixation of nitrogen in shade coffee plantations. Conclusions. The review indicates that there is a specific association between Inga spp. and Bradyrhizobium spp., that ecological factors, including the agronomic management with glyphosated herbicides can decrease nitrogen fixation performance during the symbiosis between Inga spp. and rhizobia. No systematic studies of the symbiosis-environment-agrochemical interaction in shade coffee plantations were found.

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Section: Análisis Cuantitativounclassified

FACTORES QUE AFECTAN LA FIJACIÓN DE NITRÓGENO EN EL SISTEMA Inga spp. -RIZOBIOS EN CAFETALES DE SOMBRA

Velasco-Trejo

Alarcón-Gutiérrez

García-Pérez

et al. 2023

Trop Subtrop Agroecosyst

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“…In a previous work and with the aim of studying the diversity of cultivable bacteria present in nodules of Uruguayan native legumes, samples of nodules were collected and analysed [9]. Particularly, samples of Arachis villosa were collected in March 2011 from the Esteros de Farrapos National Park (32° 43′ 10.7″ S 58° 07′ 14.7″ W), Uruguay (Fig.…”

Section: Isolation and Ecologymentioning

confidence: 99%

Paenibacillus farraposensis sp. nov., isolated from a root nodule of Arachis villosa

Roldán

Costa

Králová

et al. 2022

International Journal of Systematic and Evolutionary Microbiology

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Strain UY79T was isolated from a root nodule of Arachis villosa, collected at the Esteros de Farrapos National Park, Río Negro, Uruguay. Cells were non-motile Gram-variable rods with central to subterminal oval to ellipsoidal endospores that swell the sporangia. Growth was observed in the range of 15–42 °C (optimum, 30 °C), pH 5.0–9.0 (optimum, pH 7.0–8.0) and with up to 3 % (w/v) NaCl (optimum, 1–2 %). Strain UY79T was facultative anaerobic, catalase-positive and oxidase-negative. According to the results of 16S rRNA gene sequence analysis, UY79T belongs to the genus Paenibacillus and is closely related to P. ottowii MS2379T, P. peoriae BD-57T, P. polymyxa ATCC 842T and P. brasilensis PB172T, exhibiting 99.4, 99.0, 99.0 and 98.9% sequence identity, respectively. Average nucleotide identity and digital DNA–DNA hybridization values with the most closely related type strains were 74.3–88.6% and 38.2–48.7 %, respectively. Major fatty acids (>10 %) were anteiso-C15:0, iso-C15:0, and C16 : 0. Menaquinones MK-7 and MK-6 were the only isoprenoid quinones detected. Major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and an unidentified glycolipid. Spermidine was the predominant polyamine. The DNA G+C content based on the draft genome sequence was 46.34 mol%. Based on the current polyphasic study, UY79T represents a novel species of the genus Paenibacillus , for which the name Paenibacillus farraposensis sp. nov. is proposed. The type strain is UY79T (=CCM 9147T=CGMCC 1.19038T).

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“…Seeds of Medicago sativa var. crioula were surface sterilized with mM HgCl₂ in 0.1N HCl as previously described (41). Surface-sterilized seeds were germinated at 30 °C on Petri dishes containing water with 0.8 % (w/v) agar.…”

Section: Effect Of Strain Uy79 In Alfalfa Plant Growth Promotion Exerted By Two Rhizobia Strainsmentioning

confidence: 99%

Paenibacillussp. strain UY79, isolated from a root nodule ofArachis villosa, displays a broad spectrum of antifungal activity

Costa¹,

Corallo

Amarelle³

et al. 2021

Preprint

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A nodule-inhabiting Paenibacillus sp. strain (UY79) isolated from wild peanut (Arachis villosa) was screened for its antagonistic activity against diverse fungi and oomycetes (Botrytis cinerea, Fusarium verticillioides, Fusarium oxysporum, Fusarium graminearum, Fusarium semitectum, Macrophomina phaseolina, Phomopsis longicolla, Pythium ultimum, Phytophthora sojae, Rhizoctonia solani, Sclerotium rolfsii and Trichoderma atroviride). Results obtained show that Paenibacillus sp. UY79 was able to antagonize these fungi/oomycetes and that agar-diffusible metabolites and enzymes, as well as volatile compounds (different from HCN), participate in the antagonism exerted. We found that Paenibacillus sp. strain UY79 did not affect symbiotic association or growth promotion of alfalfa plants when co-inoculated with rhizobia. By whole genome sequence analysis, we determined that strain UY79 is a new species of Paenibacillus within the Paenibacilluspolymyxa complex. Diverse genes putatively involved in biocontrol activity were identified in the UY79 genome. Moreover, according to genome mining and antibiosis assays, strain UY79 would have the capability to modulate the growth of bacteria commonly found in soil/plant communities.

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Native legumes of the Farrapos protected area in Uruguay establish selective associations with rhizobia in their natural habitat

Cited by 12 publications

References 38 publications

FACTORES QUE AFECTAN LA FIJACIÓN DE NITRÓGENO EN EL SISTEMA Inga spp. -RIZOBIOS EN CAFETALES DE SOMBRA

FACTORES QUE AFECTAN LA FIJACIÓN DE NITRÓGENO EN EL SISTEMA Inga spp. -RIZOBIOS EN CAFETALES DE SOMBRA

Paenibacillus farraposensis sp. nov., isolated from a root nodule of Arachis villosa

Paenibacillussp. strain UY79, isolated from a root nodule ofArachis villosa, displays a broad spectrum of antifungal activity

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