BIOCELL, Vol.36, Suppl.S, pp. 47-97, 2012

Abstract This article has no abstract. More >

BIOCELL, Vol.36, Suppl.S, pp. 99-160, 2012

Abstract This article has no abstract. More >

DULCE MA. BARRADAS-DERMITZ^1,*, PATRICIA M. HAYWARD-JONES², MARTÍN MATA-ROSAS³, BEATRIZ PALMEROSSÁNCHEZ², OSCAR B. J. PLATAS-BARRADAS⁴, RODOLFO F. VELÁSQUEZ-TOLEDO²

BIOCELL, Vol.34, No.1, pp. 1-6, 2010, DOI:10.32604/biocell.2010.34.001

Abstract Of the initial six cell lines originating from explants of Taxus globosa, or Mexican yew (stem internode, leaves and meristematic tissue), three were selected for their microbial and oxidation resistance, two from leaves and the other from stem internode. A study of their behavior, both in terms of cell growth, and of baccatin III and paclitaxel production, was developed in suspension cultures with an initially standardized biomass (fresh weight 0.23 g/L) using modified Gamborg’s B5 medium, and an elicitor (methyl jasmonate), on either the first or seventh day of culture, at several levels (0, 0.1, 1, 10, 100 μM). In… More >

CHANG SEOK LEE¹, YONG JAE SHIN¹, CHEOLHEE WON¹, YUN-SONG LEE², CHUNG-GYU PARK³, SANG-KYU YE^1*, MYUNG-HEE CHUNG¹

BIOCELL, Vol.33, No.2, pp. 107-114, 2009, DOI:10.32604/biocell.2009.33.107

Abstract Cyclooxygenase-2 (COX-2) is a key inflammatory response molecule, and associated with many immune functions of monocytes/macrophages. Particularly, interferon gamma (IFNγ)-induced COX-2 expression appears in inflammatory conditions such as viral infection and autoimmune diseases. Recently, statins have been reported to show variable effects on COX-2 expression, and on their cell and species type dependences. Based on the above description, we compared the effect of simvastatin on IFNγ-induced COX2 expression in human monocytes versus murine macrophages. In a result, we found that simvastatin suppresses IFNγ-induced COX-2 expression in human THP-1 monocytes, but rather, potentiates IFNγ-induced COX-2 expression in murine RAW264.7 macrophages. However,… More >

C. DAMBORENEA*, F. BRUSA*, A. PAOLA**

BIOCELL, Vol.30, No.3, pp. 457-468, 2006, DOI:10.32604/biocell.2006.30.457

Abstract Pomacea canaliculata is a common gastropod in freshwater habitats from Central and Northern Argentina, extending northwards into the Amazon basin. Several Platyhelminthes have been reported associated to P. canaliculata, sharing an intimate relationship with this gastropod host. The objectives of this study were to describe the symbiotic species assemblages associated to P. canaliculata in the study area, and to disclose differences among them. Samples were taken in three typical small streams and one artificial lentic lagoon, all connected with the Río de la Plata estuary. The 81.53% were infested with different symbiotic (sensu lato) species. Among the Platyhelminthes, the commensal… More >

JUAN CARLOS CAVICCHIA^1*, MABEL FÓSCOLO¹ , JORGE IBAÑEZ¹, CHRISTOPHER LILLIG², FRANCISCO CAPANI³

BIOCELL, Vol.35, No.3, pp. 81-90, 2011, DOI:10.32604/biocell.2011.35.081

Abstract Junctional devices in Sertoli cells conform the blood-testis barrier and play a key role in maturation and differentiation of germ cells. The spacial distribution of ectoplasmic specializations of Sertoli cells was studied by β-actin immunolabelling, using laser confocal and transmission electron microscopy. For confocal microscopy, β-actin immunolabelling of ectoplasmic specializations was studied over the background of either prosaposin or glutaredoxin immunolabelling of the Sertoli cytoplasm. Labelling was found near the basal lamina, surrounding early spermatocytes (presumably in leptotene-zygotene) or at one of two levels in the seminiferous epithelium: (1) around deep infoldings of the Sertoli cell cytoplasm, in tubular stages… More >

Molina-Anzures MF¹, JL Chávez-Servia², A Gil-Muñoz¹, PA López¹, E Hernández-Romero¹, E Ortiz-Torres¹

Phyton-International Journal of Experimental Botany, Vol.85, pp. 36-50, 2016, DOI:10.32604/phyton.2016.85.036

Abstract Mesoamerican agrosystem ‘milpa’ is the association of maize, beans (Phaseolus sp.) and squash (Cucurbits sp.) in the same space and time. It is characterized by the production of a large diversity of species in small areas, but currently its use tends to decrease because of technological introductions of monocultures. In this work, the yield and productive efficiency of the association maize, beans and squash, intercropped with fruit tree rows were evaluated in two locations from Puebla, Mexico, through 32 experimental treatments clustered in three agrosystems. They were: triple associations of maize-beans-squash intercropped with fruit trees, double associations maize-beans without fruit… More >

Garay MM¹, NM Amiotti², P Zalba¹

Phyton-International Journal of Experimental Botany, Vol.84, No.2, pp. 280-287, 2015, DOI:10.32604/phyton.2015.84.280

Abstract Afforestation is a recommended practice to mitigate global warming. However, their implementation may generate undesirable impacts, mostly if exotic species are used. Plantations of Pinus radiata D Don in Ventania (Bs. As., Argentina) soils showed notorious increments of extractable P (Pe), which could affect the dynamic of this element as well as the degree of phosphorus saturation (GSP_Bray). The objectives of this study were: i) to quantify the GSP_Bray in Mollisols afforested with P. radiata comparing the results with those coming from adjacent, natural grassland areas (base line); ii) to evaluate the potential environmental risk induced by afforestation through the… More >

Galussi AA¹, JA Argüello², MM Cerana², M Maximino³, ME Moya¹

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 163-175, 2015, DOI:10.32604/phyton.2015.84.163

Abstract Seeds of alfalfa (Medicago sativa L.) can exhibit seedcoat imposed dormancy, which produces hard seeds within a seed lot. These seeds do not germinate because they do not imbibe water due to a barrier to water entry in the seed coat. The aim of this work was to analyze the anatomical and chemical characteristics of the testa of alfalfa seeds with respect to water permeability levels. The anatomy of seeds of the cv. Baralfa 85 was studied and structural substances, polyphenols, tannins and cutin present in the testa of seeds of different water permeability levels were determined. The anatomical characteristics… More >

Piña-González JL¹, EJ Morales-Rosales², A Domíngez-López², JF Ramírez-Dávila², G Estrada-Campuzano², O Franco-Mora²

Phyton-International Journal of Experimental Botany, Vol.83, pp. 101-108, 2014, DOI:10.32604/phyton.2014.83.101

Abstract The aim of this study was to assess the land equivalent ratio, biomass, grain yield and ethereal extract of Helianthus annuus in monoculture and associated with Pisum sativum in function of stabilized urea (0, 40, 80 kg N/ha) in El Cerrillo, México. It was also estimated pod yield obtained by P. sativum as a pure stand and associated with H. annuus. The six treatments (in each experiment) were evaluated in a 2 × 3 factorial experiment in a randomized complete block design with four replications. When F values were significant, the honestly significant difference test at the 5% level of… More >