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A synthesis of functional contributions of rhizobacteria to growth promotion in diverse crops
Brambilla, Silvina Maricel; Stritzler, Margarita; Soto, Gabriela Cynthia; Ayub, Nicolás Daniel (Elsevier, 2022-12)The endophytic microbes are known to live asymptomatically inside their host and play crucial roles in the growth, development, fitness, and diversification of plants. The plant-endophyte association ranges from mutualism ... -
Absence of the nitrous oxide reductase gene cluster in commercial alfalfa inoculants is probably due to the extensive loss of genes during rhizobial domestication
Brambilla, Silvina Maricel; Frare, Romina Alejandra; Soto, Gabriela Cinthia; Jozefkowicz, Cintia; Ayub, Nicolás Daniel (Springer, 2018-08)As other legume crops, alfalfa cultivation increases the emission of the greenhouse gas nitrous oxide (N2O). Since legumesymbiotic nitrogen-fixing bacteria play a crucial role in this emission, it is important to understand ... -
Alfalfa snakin-1 prevents fungal colonization and probably coevolved with rhizobia
Garcia, Araceli Nora; Ayub, Nicolás Daniel; Fox, Ana Romina; Gomez, Maria Cristina; Dieguez, Maria Jose; Pagano, Elba Maria; Berini, Carolina Andrea; Muschietti, Jorge Prometeo; Soto, Gabriela Cinthia (BMC Plant Biology, 2014-09-17)Background: The production of antimicrobial peptides is a common defense strategy of living cells against a wide range of pathogens. Plant snakin peptides inhibit bacterial and fungal growth at extremely low concentrations. ... -
Aportes a la producción sustentable de soja mediante el mejoramiento genético de los rizobios
Liebrenz, Karen Ivana (Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, 2022-07-14)La soja es el cultivo que consume más inoculantes a nivel global. Estos inoculantes están basados casi en su totalidad en cepas relacionadas de las especies Bradyrhizobium japonicum y Bradyrhizobium diazoefficiens. ... -
CRISPR/Cas9-mediated knockout of a polyester synthase-like gene delays flowering time in alfalfa
Galindo Sotomonte, Luisa Fernanda; Jozefkowicz, Cintia; Gomez, Maria Cristina; Stritzler, Margarita; Frare, Romina Alejandra; Bottero, Ana Emilia; Tajima, Hiromi; Blumwald, Eduardo; Ayub, Nicolás Daniel; Soto, Gabriela Cynthia (Springer, 2023-02)Alfalfa (Medicago sativa), commonly known as the “Queen of Forages”, is the main source of plant protein for meat and milk production systems worldwide. Since alfalfa is a perennial vegetative-harvest forage, delaying ... -
CRISPR/Cas9‑mediated knockout of SPL13 radically increases lettuce yield
Beracochea, Valeria Cecilia; Stritzler, Margarita; Radonic, Laura Mabel; Bottero, Ana Emilia; Jozefkowicz, Cintia; Darqui, Flavia Soledad; Ayub, Nicolás Daniel; Lopez Bilbao, Marisa Gisela; Soto, Gabriela Cynthia (Springer, 2022-12)Cultivated lettuce (Lactuca sativa L.) is a diploid (2n = 2x = 18), autogamous species. This popular leafy vegetable is considered one of the first crops (Guo et al. 2022). Currently, lettuce is the third most consumed ... -
Efficient CRISPR/Cas9 genome editing in alfalfa using a public germplasm
Bottero, Ana Emilia; Massa, Gabriela Alejandra; Gonzalez, Matías Nicolás; Stritzler, Margarita; Tajima, Hiromi; Gomez, Maria Cristina; Frare, Romina Alejandra; Feingold, Sergio Enrique; Blumwald, Eduardo; Ayub, Nicolás Daniel; Soto, Gabriela Cynthia (Frontiers Media, 2021-07)Because its ability to acquire large amounts of nitrogen by symbiosis, tetraploid alfalfa is the main source of vegetable proteins in meat and milk production systems in temperate regions. Alfalfa cultivation also adds ... -
Engineering Pseudomonas protegens Pf-5 for nitrogen fixation and its application to improve plant growth under nitrogen-deficient conditions
Setten, Lorena; Soto, Gabriela Cinthia; Mozzicafreddo, Matteo; Fox, Ana Romina; Lisi, Christian Daniel; Cuccioloni, Massimiliano; Angeletti, Mauro; Pagano, Elba Maria; Diaz Paleo, Antonio Horacio; Ayub, Nicolás Daniel (2013-05-13)Nitrogen is the second most critical factor for crop production after water. In this study, the beneficial rhizobacterium Pseudomonas protegens Pf-5 was genetically modified to fix nitrogen using the genes encoding the ... -
Expanding the benefits of Tnt1 for the identification of dominant mutations in polyploid crops: A single allelic mutation in the MsNAC39 gene produces multifoliated alfalfa
Jozefkowicz, Cintia; Gomez, Maria Cristina; Odorizzi, Ariel; Iantcheva, Anelia; Ratet, Pascal; Ayub, Nicolás Daniel; Soto, Gabriela Cynthia (Frontiers Media, 2022-04)Most major crops are polyploid species and the production of genetically engineered cultivars normally requires the introgression of transgenic or gene-edited traits into elite germplasm. Thus, a main goal of plant research ... -
Exploring the ancestral mechanisms of regulation of horizontally acquired nitrogenases
Pascuan, Cecilia Gabriela; Fox, Ana Romina; Soto, Gabriela Cinthia; Ayub, Nicolás Daniel (Springer, 2015-10)The vast majority of Pseudomonas species are unable to fix atmospheric nitrogen. Although several studies have demonstrated that some strains belonging to the genus Pseudomonas sensu stricto do have the ability to fix ... -
Exploring the cooperation between nitrogen-fixing and non-fixing alfalfa rhizobia
Brambilla, Silvina Maricel; Liebrenz, Karen Ivana; Odorizzi, Ariel; Arolfo, Valeria; Maguire, Vanina Giselle; Moreno, Maria Valeria; Ruiz, Oscar Adolfo; Stritzler, Margarita; Serantes, Maria Laura; Soto, Gabriela Cynthia; Ayub, Nicolás Daniel (Springer, 2024-07-05)Alfalfa plays a crucial role in agriculture due to its nitrogen-fixing partnership with rhizobia, resulting in nutritious forage. While the potential parasitic action of inefficient rhizobia has been extensively studied, ... -
Exploring the Intrinsic Limits of Nitrogenase Transfer from Bacteria to Eukaryotes
Soto, Gabriela Cynthia; Fox, Ana Romina; Ayub, Nicolás Daniel (Springer, 2013-08)Biological nitrogen fixation is widespread among the Eubacteria and Archae domains but completely absent in eukaryotes. The lack of lateral transfer of nitrogen-fixation genes from prokaryotes to eukaryotes has been partially ... -
Exploring the role of the NO‑detoxifying enzyme HmpA in the evolution of domesticated Alfalfa Rhizobia
Frare, Romina Alejandra; Pascuan, Cecilia Gabriela; Galindo Sotomonte, Luisa Fernanda; McCormick, Wayne; Soto, Gabriela Cynthia; Ayub, Nicolás Daniel (Springer, 2022-02)We have previously shown the extensive loss of genes during the domestication of alfalfa rhizobia and the high nitrous oxide emission associated with the extreme genomic instability of commercial inoculants. In the present ... -
Generation of a multi‑herbicide‑tolerant alfalfa by using base editing
Bottero, Ana Emilia; Gomez, Maria Cristina; Stritzler, Margarita; Tajima, Hiromi; Frare, Romina Alejandra; Pascuan, Cecilia Gabriela; Blumwald, Eduardo; Ayub, Nicolás Daniel; Soto, Gabriela Cynthia (Springer, 2022-02)We present the first report on base editing in alfalfa. Specifically, we showed edited alfalfa with tolerance to both sulfonylurea- and imidazolinone-type herbicides. Alfalfa (Medicago sativa) is one of the most important ... -
Genetic analysis of environmental strains of the plant pathogen Phytophthora capsici reveals heterogeneous repertoire of effectors and possible effector evolution via genomic island
Iribarren, Maria Josefina; Pascuan, Cecilia Gabriela; Soto, Gabriela Cynthia; Ayub, Nicolás Daniel (Oxford University Press, 2015-11)Phytophthora capsici is a virulent oomycete pathogen of many vegetable crops. Recently, it has been demonstrated that the recognition of the RXLR effector AVR3a1 of P. capsici (PcAVR3a1) triggers a hypersensitive response ... -
Genetic diversity in a world germplasm collection of tall fescue
Cuyeu, Alba Romina; Rosso, Beatriz Susana; Pagano, Elba Maria; Soto, Gabriela; Fox, Ana Romina; Ayub, Nicolás Daniel (2013)Festuca arundinacea Schreb., commonly known as tall fescue, is a major forage crop in temperate regions. Recently, a molecular analysis of different accessions of a world germplasm collection of tall fescue has demonstrated ... -
The genetic diversity of wild rescuegrass is associated with precipitation levels
Cuyeu, Alba Romina; Pagano, Elba Maria; Rosso, Beatriz Susana; Soto, Gabriela Cinthia; Ayub, Nicolás Daniel (Springer, 2014-04-27)The genus Bromus belongs to the family Poaceae, contains over 160 annual and perennial species of grasses, varying in ploidy level from diploid (2n = 14) to dodecaploid (2n = 70) (Fortune et al. 2008). One of the most ... -
Genome editing of soybean inoculant using CRISPR/Cas9 system: enhancing agricultural sustainability
Serantes, Maria Laura; Stritzler, Margarita; Brambilla, Silvina Maricel; Soto, Gabriela Cynthia; Ayub, Nicolás Daniel (Springer, 2024-04)In modern agriculture, inoculants, consisting of various bacteria and fungi, are essential for promoting crop growth and sustainability while reducing reliance on agrochemicals. Despite their benefits, there have been no ... -
High-quality forage production under salinity by using a salt-tolerant AtNXH1-expressing transgenic alfalfa combined with a natural stress-resistant nitrogen-fixing bacterium
Stritzler, Margarita; Pagano, Elba Maria; Berini, Carolina Andrea; Gomez, Maria Cristina; Ayub, Nicolás Daniel; Soto, Gabriela Cinthia (Elsevier, 2018-06)Alfalfa, usually known as the “Queen of Forages”, is the main source of vegetable protein to meat and milk production systems worldwide. This legume is extremely rich in proteins due to its highly efficient symbiotic ... -
LOV‐domain photoreceptor, encoded in a genomic island, attenuates the virulence of Pseudomonas syringae in light‐exposed Arabidopsis leaves
Moriconi, Victoria; Sellaro, Romina Vanesa; Ayub, Nicolás Daniel; Soto, Gabriela; Rugnone, Matias Leandro; Shah, Rashmi; Pathak, Gopal P.; Gärtner, Wolfgang; Casal, Jorge José (Wiley, 2013-10)In Arabidopsis thaliana, light signals modulate the defences against bacteria. Here we show that light perceived by the LOV domain‐regulated two‐component system (Pst–Lov) of Pseudomonas syringae pv. tomato DC3000 (Pst ...