Publications

alfalfa microsymbionts from different its and nodc lineages of ensifer meliloti and ensifer medicae symbiovar meliloti establish efficient symbiosis with alfalfa in spanish acid soils.	alfalfa (medicago sativa l.) is an important crop worldwide whose cropping in acid soils is hampered by the poor nodulation and yield commonly attributed to the sensitivity of its endosymbionts to acid ph. in this work, we isolated several acid-tolerant strains from alfalfa nodules in three acid soils in northwestern spain. after grouping by rapd fingerprinting, most strains were identified as ensifer meliloti and only two strains as ensifer medicae according to their 16s-23s intergenic spacer ( ...	2015	25586575
decontamination of mesquite pod flour naturally contaminated with bacillus cereus and formation of furan by ionizing irradiation.	mesquite pod flour produced from nitrogen-fixing trees of the prosopis species has a unique aroma and flavor that is preferred by some consumers. due to the presence of wildlife, grazing domestic animals, and insects, the pods have a high potential of being contaminated with human pathogenic bacteria, such as bacillus cereus. nonthermal processing technologies are helpful to reduce the population of microorganisms in the flour because heating deteriorates the characteristic flavor. a study was c ...	2015	25951390
chemiluminescence determination of antioxidant property of zizyphus mistol and prosopis alba during oxidative stress generated in blood by hemolytic uremic syndrome-producing escherichia coli.	this study was undertaken to elucidate the antioxidant effect of zizyphus mistol and prosopis alba, with the hypothesis that these fruits can counteract the induction of reactive oxygen species (ros) caused by toxins produced by escherichia coli. in the search of nutrients effective against the hemolytic uremic syndrome (hus), we detected by chemiluminescence a protective role of both plants, due to their natural antioxidants significantly decreasing the levels of ros induced by toxins from e. c ...	2010	20842653
genetic characterization of fast-growing rhizobia able to nodulate prosopis alba in north spain.	prosopis is a mimosaceae legume tree indigenous to south america and not naturalized in europe. in this work 18 rhizobial strains nodulating prosopis alba roots were isolated from a soil in north spain that belong to eight different randomly amplified polymorphic dna groups phylogenetically related to sinorhizobium medicae, sinorhizobium meliloti and rhizobium giardinii according to their intergenic spacer and 16s rrna gene sequences. the nodc genes of isolates close to s. medicae and s. melilot ...	2007	18031342
first report on rapds patterns able to differentiate some argentinean species of section algarobia (prosopis, leguminosae).	prosopis species constitute a very important resource in arid and semiarid regions. some species of section algarobia hybridise and introgress naturally in areas of sympatry. according to previous isoenzymatic studies these species have high variability within populations. however, the genetic differentiation among species was very low, and these markers failed to provide diagnostic loci for species recognition. here we analysed by the rapd technique natural populations of prosopis alba, p. rusc ...	2004	15098735
mesorhizobium chacoense sp. nov., a novel species that nodulates prosopis alba in the chaco arido region (argentina).	low-molecular-weight rna analysis was performed for the identification and classification of 20 argentinian strains isolated from the root nodules of prosopis alba. sds-page of total cellular proteins, determination of the dna base composition, dna-dna reassociation experiments and physiological and biochemical tests were also carried out for these strains and the whole 16s rrna gene was sequenced from one of the strains, strain lmg 19008t. results of the genotypic and phenotypic characterizatio ...	2001	11411668
peridomestic distribution of triatoma garciabesi and triatoma guasayana in north-west argentina.	the reduviid bugs triatoma garciabesi carcavallo et al. (hemiptera: reduviidae: triatominae), previously known as t. sordida ståhl in the semi-arid chaco region, and t. guasayana wygodzinsky & abalos, vectors of trypanosoma cruzi chagas (kinetoplastida: trypanosomatidae), were found to occupy wide but different ranges of ecotopes in the peridomestic environment. at amamá and nearby rural villages in north-western argentina, a combined total of 1233 specimens were collected from 325/2314 (14%) si ...	2000	11129702
[the rhizobium-prosopis symbiosis in the argentinian chaco arido].	low productivity soils can be improved by incorporation of adapted legumes species able to increase the nitrogen fixation when associated to rhizobium strains. two fast-growing rhizobium strains were isolated from nodules of prosopis alba. infectivity and effectivity of the strains were assessed under controlled conditions, measuring the following parameters: nodule number, dry weight, nitrogen percentage and fixed nitrogen. p. flexuosa strains showed high infective capacity (144 nodules/plant) ...	1994	7938496
comparison of the effects of an extract of the leaves of prosopis alba and of tyramine on the blood pressure of the pitched rat.		1973	4511973
alkaloids of argentine medicinal plants. ii. isolation of tyramine, beta-phenethylamine and tryptamine from prosopis alba.		1971	5173440