RIUNNE Repositorio Institucional de la Universidad Nacional del Nordeste: Envíos recientes
Mostrando ítems 141-160 de 15928
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Uniparentality : advantages for range expansion in diploid and diploid-autopolyploid species
(Wiley Blackwell Publishing, Inc, 2022)Uniparental reproduction, the capacity of an individual to produce offspring autonomously, is expected to facilitate range expansion of populations. Paspalum spp. reproduce uniparentally by sexual (self-fertility) and ... -
Genome size evolution in Sapindaceae at subfamily level : a case study of independence in relation tokaryological and palynological traits
(Wiley Blackwell Publishing, Inc, 2014)Sapindaceae s.l. is a moderately large family of trees, shrubs and lianas. Current knowledge on genome size and how it varies in this family is scarce. This research aims to characterize the DNA content in 39 species ... -
Phylogenetics of Gratioleae (Plantaginaceae) : paraphyly of Stemodia and its implications for generic circumscriptions, with insights from floral evolution
(Wiley Blackwell Publishing, Inc, 2022)Gratioleae are the most species-rich tribe of Plantaginaceae in the tropics, spanning c. 30 genera and > 300 species, with a wide range of morphological variation and ecological strategies. As a first effort towards a ... -
A new species of Schizachyrium (Poaceae-Andropogoneae) from Brazil
(Wiley Blackwell Publishing, Inc, 2006)A new Brazilian species, Schizachyrium hatschbachii Peichoto, is described and illustrated. It is restricted to southern Brazil, where it grows in grasslands. Diagnostic characters, description, detailed illustration ... -
New data for palaeoclimatic reconstructions in the upper/middle Uruguay river basin : caesalpinioid Fabaceae woods in the Late Pleistocene
(Wiley Blackwell Publishing, Inc, 2022)The El Palmar Formation is the principal unit deposited during the Late Pleistocene by the Uruguay River in eastern Entre Ríos province, Argentina and north-western Uruguay. The Arroyo Yuquerí fossiliferous locality ... -
Insights into the morphology and evolution of orbicules in the Spermacoce clade (Spermacoceae-Rubiaceae) and implications for systematics
(Wiley Blackwell Publishing, Inc, 2023)The orbicules are tiny structures of sporopollenin that occur on the interior wall of anthers in several groups of plants, and they are associated with pollen grains and tapetal cells. Although their function remains still ... -
Gynoecium structure and pollen tube pathway in the cactus family with emphasis on tribe Trichocereeae (Cactaceae: Cactoideae)
(Wiley Blackwell Publishing, Inc, 2023)The structural details of the gynoecium are key to understanding the reproductive systems and successful diversification of flowering plants. However, the gynoecium morpho-anatomy in South American species of Cactaceae ... -
Carpellary appendages in Nymphaea and Victoria (Nymphaeaceae) : evidence of their role as osmophores based on morphology, anatomy and ultrastructure
(Wiley Blackwell Publishing, Inc, 2019)In flowers of Nymphaea and Victoria, carpellary appendages are regarded as structures related to pollination by deceit of night-blooming species. In this study, the anatomy, histochemistry and ultrastructure of carpellary ... -
The evolution of chromosome number during the diversification of the tribe Vernonieae (Asteraceae)
(Wiley Blackwell Publishing, Inc, 2022)Changes in chromosome number have played an important role in the diversification and evolution of angiosperms. In Asteraceae, tribe Vernonieae are one of the most variable groups with regard to chromosome number. ... -
Políticas culturales impulsadas por sus propios actores : el caso del coro qom Chelaalapí
(Universidad Nacional del Nordeste. Facultad de Artes, Diseño y Ciencias de la Cultura, 2024-12)Con este trabajo, abordaremos un análisis para poder reflexionar como los actores principales del coro Qom podríamos considerarlos como gestores o hacedores culturales desde una perspectiva intercultural. Además, analizaremos ... -
Systemic pathological alterations caused by Philodryas patagoniensis colubrid snake venom in rats
(Elsevier, 2006-10)Very little is known about the systemic effects caused by Philodryas patagoniensis colubrid snake venom. In this work, this venom was tested for its ability to induce histopathological changes in rats after its intramuscular, ... -
Muscle and skin necrotizing and edema-forming activities of Duvernoy’s gland secretion of the xenodontine colubrid snake Philodryas patagoniensis from the North-east of Argentina
(Elsevier, 2004-11)Philodryas patagoniensis is a colubrid snake spread throughout South America, but very little is known about the composition and biological activities of its Duvernoy’s gland secretion. In order to characterize it, we ... -
Neutralisation of the pharmacological activities of Bothrops alternatus venom by anti-PLA2 IgGs
(Elsevier, 2014-08)Basic phospholipases A2 (PLA2) are toxic and induce a wide spectrum of pharmacological effects, although the acidic enzyme types are not lethal or cause low lethality. Therefore, it is challenging to elucidate the mechanism ... -
Corrigendum to “CpG-ODN formulated with a nanostructure as adjuvant for anticrotalic serum production. Studies in mice” [Toxicon 215 (2022) 28–36]
(Elsevier, 2022-09-25)Antivenom is the only safe and effective treatment to neutralize snake venom. Specific anti-venom used to treat snake bite is usually obtained from horses after hyperimmunization with crude snake venom in combination ... -
Effect of monospecific antibodies against baltergin in myotoxicity induced by Bothrops alternatus venom from northeast of Argentina. Role of metalloproteinases in muscle damage
(Elsevier, 2013-03-03)Myotoxicity, one of the most relevant local manifestations in envenomation by Bothrops genus, may result from a direct action of myotoxins or be due to an indirect vascular degeneration and ischemia. Baltergin, a snake ... -
Hepatic encephalopathy in swine experimentally poisoned with Senna occidentalis seeds : effects on astrocytes
(Elsevier, 2021-10-21)Senna occidentalis may be accidently ingested by humans and animals. In this study, the percentages of S. occidentalis seeds necessary for experimental reproduction of hepatic encephalopathy were determined in a pig model ... -
Isolation of two basic phospholipases A2 from Bothrops diporus snake venom : comparative characterization and synergism between Asp49 and Lys49 variants
(Elsevier, 2019-10-16)Bothrops diporus, previously considered a subspecies of the B. neuwiedi complex, is a medically relevant viperid in Northeastern Argentina. The venom of this species causes local tissue damage characterized by ... -
SP 17 uso de prótesis dental en vacas de invernada en el Noreste Argentino
(Asociación Argentina de Producción Animal, 2018)La eficiencia de los rodeos de cría pastoriles en la región del NEA está subordinada a una multiplicidad de factores independientemente de la sanidad, genética y disponibilidad de oferta forrajera que influirán como ... -
SP 16 caracteres de crecimiento y calidad de carcasa en un sistema de engorde a corral en el suroeste de Chaco
(Asociación Argentina de Producción Animal, 2018)En los últimos años se observa una marcada tendencia a la utilización de grandes superficies de tierra que estaban destinadas a la ganadería para plantaciones agrícolas. Este hecho, sumado a la necesidad de aumentar los ... -
SP 76 peso corporal en pollos parrilleros bajo dos densidades de alojamiento en tres zonas de galpones black out. 1. Machos
(Asociación Argentina de Producción Animal, 2018)La densidad de alojamiento utilizada en los sistemas intensivos de producción de carne aviar en ocasiones entra en colisión con los estándares de salud deseados (Gabanakgosi et al., 2014). La utilización de altas ...
