Results 81 to 90 of about 1,348,598 (339)

A stepwise emergence of evolution in the RNA world

FEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

ESTRATEGIAS PARA INCREMENTAR LA PRODUCCIÓN DE METABOLITOS SECUNDARIOS EN CULTIVOS DE CÉLULAS VEGETALES STRATEGIES FOR THE IMPROVEMENT OF SECONDARY METABOLITES PRODUCTION IN PLAN CELL CULTURES

Revista Facultad Nacional de Agronomía Medellín, 2009
El cultivo de células vegetales ha surgido como una alternativa para la obtención de metabolitos de alto valor agregado, producidos en las plantas en bajas concentraciones y para los cuales, no existen procesos de síntesis química conocidos; sin embargo,
Mario Arias Zabala, Mónica Juliana Angarita Velásquez, Ana Maria Aguirre Cardona, Juan Manuel Restrepo Flórez, Carolina Montoya Vallejo   +4 more
doaj  

Chromatin techniques for plant cells [PDF]

The Plant Journal, 2004
SummaryA large number of recent studies have demonstrated that many important aspects of plant development are regulated by heritable changes in gene expression that do not involve changes in DNA sequence. Rather, these regulatory mechanisms involve modifications of chromatin structure that affect the accessibility of target genes to regulatory factors
Bowler, Chris, Benvenuto, Giovanna, Laflamme, Pierre, Molino, Diana, Probst, Aline V., Tariq, Muhammad, Paszkowski, Jerzy   +6 more
openaire   +4 more sources

BRL1 and BRL3 are novel brassinosteroid receptors that function in vascular differentiation in Arabidopsis [PDF]

, 2004
Plant steroid hormones, brassinosteroids (BRs), are perceived by the plasma membrane-localized leucine-rich-repeat-receptor kinase BRI1. Based on sequence similarity, we have identified three members of the BRI1 family, named BRL1, BRL2 and BRL3.
Caño Delgado, Ana, Cheng, Jin Chen, Chory, Joanne, Li, Jianming, Mora Garcia, Santiago, Nam, Kyoung Hee, Vafeados, Dionne, Yin, Yanhai, Yu, Cong   +8 more
core   +1 more source

Modifications in FLAP's second cytosolic loop influence 5‐LOX interaction, inhibitor binding, and leukotriene formation

FEBS Letters, EarlyView.
The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp, Katharina Rataj, Stefanie König, Marcia E. Newcomer, Oliver Werz, Ulrike Garscha   +5 more
wiley   +1 more source

Sodium transport system in plant cells

Frontiers in Plant Science, 2013
Since Sodium, Na, is a non-essential element for the plant growth, the molecular mechanism of Na+ transport system in plants has remained elusive for the last two decades.
Toshio eYamaguchi, Shin eHamamoto, Nobuyuki eUozumi   +2 more
doaj   +1 more source

Structures of Phytophthora RXLR Effector Proteins: a conserved but adaptable fold underpins functional diversity [PDF]

, 2011
Phytopathogens deliver effector proteins inside host plant cells to promote infection. These proteins can also be sensed by the plant immune system, leading to restriction of pathogen growth.
Adams, Allen, Aminetzach, Armstrong, Bailey, Baxter, Bos, Bos, Bos, Bos, Cowtan, Davis, Demeler, Dodds, Dou, Eddy, Emsley, Evans, Haas, Holm, Jiang, Jones, Karimi, Kearney, Kim, Kobe, Krissinel, Krissinel, Larkin, Leslie, Lindbo, Liu, Markson, McCoy, Nomura, Oh, Potterton, Raffaele, Samanta, Schmidt, Schornack, Schornack, Shan, Sheldrick, Tyler, Vleeshouwers, Whisson, Wierenga, Win, Yang   +49 more
core   +1 more source

The carboxylate “gripper” of the substrate is critical for C‐4 stereo‐inversion by UDP‐glucuronic acid 4‐epimerase

FEBS Letters, EarlyView.
UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg, Laura De Cnop, Bernd Nidetzky   +2 more
wiley   +1 more source

Ferroptosis-like death in plant cells

Molecular & Cellular Oncology, 2017
Ferroptosis is an iron-dependent, oxidative, non-apoptotic form of cell death initially described in mammalian cells. We recently reported that a ferroptosis-like cell death process can be triggered by heat shock in Arabidopsis thaliana.
Megan Conlon, Scott J. Dixon
doaj   +1 more source

Quantitative predictions on auxin-induced polar distribution of PIN proteins during vein formation in leaves [PDF]

, 2010
The dynamic patterning of the plant hormone auxin and its efflux facilitator the PIN protein are the key regulator for the spatial and temporal organization of plant development.
A. Delbarre, A. Marchant, A. Newell, A.G. Rolland-Lagan, A.S. Usenko, C.L. Howe, C.L. Wenzel, D. Koenig, D. Reinhardt, E. Benková, E. Frey, E. Scarpella, E. Wangermann, E.M. Bayer, E.M. Kramer, E.M. Kramer, F. Feugier, F. Rapparini, F.A.F.C. Went, F.G. Feugier, G.J. Mitchison, G.J. Mitchison, G.J. Mitchison, H. Jönsson, J. Friml, J. Friml, J. Petrasek, J. Petrášek, J.A. Raven, K. Alim, K. Ljung, K. Okada, L. Gälweiler, L.E. Sieburth, M. Ibañes, M. Sauer, M.G. Sawchuk, M.H.M. Goldsmith, O. Hamant, P. Dhonukshe, P. Ortoleva, P. Sahlin, P.A. Lawrence, P.H. Rubery, R. Benjamins, R. Swarup, R.G. Casten, R.M.H. Merks, R.S. Smith, R.S. Smith, S. Pollmann, S. Stoma, T. Berleth, T. Paciorek, T. Sachs   +54 more
core   +3 more sources