Results 101 to 110 of about 51,205 (219)

Agenesias dentarias: en busca de las alteraciones genéticas responsables de la falta de desarrollo [PDF]

, 2004
En conjunto, las agenesias dentarias son la malformación cráneofacial más frecuente. Su prevalencia alcanza el 20% en la dentición permanente, y su expresión puede variar desde la ausencia de una sola pieza, generalmente un tercer molar, hasta la de toda
Kolenc Fusé, Francisco Javier
core  

S‐Adenosylmethionine (SAM) hydrolases counter increased SAM epimerisation in thermophilic archaea

The FEBS Journal, EarlyView.
S‐Adenosyl‐l‐methionine (SAM) is a vital enzyme cofactor. Epimerisation at the sulfonium centre of biologically active (SS,SCα)‐SAM is driven by heat, yielding biologically inactive (RS,SCα)‐SAM. Here, two novel archaeal SAM hydrolases from the thermophilic Sulfolobus acidocaldarius and the halophilic Haloferax volcanii are shown to cleave (RS,SCα)‐SAM.
Agnes Bartels, Michael K. F. Mohr, Phillip Nußbaum, Marie Joest, Bianca Wassmer, Laurent Rasquin, Sonja‐Verena Albers, Jennifer N. Andexer   +7 more
wiley   +1 more source

Regeneración in vitro de Tillandsia takizawae Ehlers & H. Luther

Polibotánica
Tillandsia takizawae Ehlers & H. Luther es una bromelia epífita microendémica de México de inflorescencias vistosas con brácteas de color rosa que contrastan con las flores de color verde. Estos atributos le otorgan potencial como planta ornamental.
Eleodoro Hernández Meneses, Sandra Eloisa Rangel Estrada, Jaime Canul Ku, Edwin Javier Barrios Gómez   +3 more
doaj   +1 more source

Does any fish scale of a fish have the same number of marks? A case study for two Mugilidae species

Journal of Fish Biology, EarlyView.
Abstract This study evaluates the difference in growth marks in scales from nine body areas of two Mugilidae species from the Gulf of Mexico: Mugil curema and Mugil cephalus. It addresses whether the different body areas show more (or fewer) marks, and which area(s) would be more useful in fish biology studies relying on mark analysis.
Ebenecer Guerra, Arturo Bell Enríquez‐García, Víctor H. Cruz‐Escalona, Eloísa Pacheco‐Almanzar, Sergio Álvarez‐Hernández, Emigdio Marín‐Enríquez, Ana Laura Ibáñez   +6 more
wiley   +1 more source

USING IN VITRO-METHODS FOR PROPAGATION AND PRODUCING SECONDARY METABOLITES FROM EUROPEAN PENNYROYAL PLANTS (MENTHA PULEGIUM L.)

International Journal of Secondary Metabolite, 2016
European pennyroyal (Mentha pulegium L.) is the best source of essential oils and natural antioxidants. The main component of the essential oil is pulegone, which can be a precursor for the synthesis of menthol and menthofuran.The aim of this research is
M.M. MOUBARAK, M. Y. CHEREDNICHENKO
doaj  

Transgénesis: una moderna biotecnología reproductiva en animales de interés zootécnico [PDF]

, 2014
Los continuos avances en el conocimiento de la biología molecular han permitido un gran progreso de la ciencia, mediante la modificación genética tanto de virus, bacterias como de organismos superiores.
Bevacqua, Romina Jimena, Bruno Galarraga, María Macarena, Cueto, M., Fernandez Martin, R., Gibbons, A., Pereyra Bonnet, Federico Alberto, Salamone, Daniel Felipe   +6 more
core   +1 more source

De novo stolon organogenesis in potato leaf callus elicited by Agrobacterium tumefaciens stimulus

Journal of Integrative Plant Biology, EarlyView.
Agrobacterium tumefaciens triggers stolon regeneration from potato leaf callus independent of T‐DNA insertion, suggesting a strategy to reprogram callus identity and expand the potential of tissue regeneration. ABSTRACT Plant cells can undergo cellular reprogramming, enabling pluripotent callus formation from excised leaves.
Seung Yong Shin, Su‐Jin Park, Ji‐Sun Park, Ki‐Beom Moon, Jae Sun Moon, Hye Sun Cho, Hyun‐Soon Kim, Hyo‐Jun Lee   +7 more
wiley   +1 more source

SlGRF1 mediates gibberellin signaling to control cut‐budding in tomato

Journal of Integrative Plant Biology, EarlyView.
Upon wounding, cytokinin increases to initiate callus formation. Gibberellin enhances this, but later blocks bud formation by suppressing SlGRF1. Wounding‐induced protein SlGRF1 triggers buds via NAM1, EPF4, and ER2. Hormonal shifts control cut‐budding phases.
Yaping Xu, Yinhuan Xie, Huimin Jia, Qianqian Li, Xinqin Liu, Ting Ma, Zhaobo Lang, Qingfeng Niu   +7 more
wiley   +1 more source

Malformaciones congénitas cardíacas en el servicio de neonatología del Hospital Escuela "Carlos Roberto Huembes" Enero-Diciembre 2014 [PDF]

, 2015
Se realizó un estudio sobre las malformaciones congénitas cardíacas en el servicio de Neonatología del Hospital Escuela “Carlos Roberto Huembes” Enero-Diciembre 2014.El tipo de estudio: fue descriptivo, retrospectivo de corte transversal, cuyo universo ...
Ortiz Castillo, Sergio Antonio, Rodríguez Montenegro, Belén Izar   +1 more
core  

Cyclophilin A‐mediated cis/trans isomerization modulates RIN4 to control intracellular rhizobial infection in legumes

New Phytologist, EarlyView.
Summary In most legume‐rhizobium symbioses, rhizobial colonization occurs through host‐derived intracellular infection threads, which enable rhizobial recruitment while presumably modulating the host immune system to prevent rejection. To investigate post‐translational regulation of immune responses during rhizobial infection, we focused on Cyclophilin
Takashi Goto, Kasper Røjkjær Andersen, Masaru Bamba, Shusei Sato, Masayuki Sugawara, Kiwamu Minamisawa, Masayoshi Kawaguchi, Jens Stougaard, Yasuyuki Kawaharada   +8 more
wiley   +1 more source