Results 121 to 130 of about 145,845 (219)

Functional characterization of NRT1/PTR FAMILY transporters: looking for a needle in a haystack

New Phytologist, Volume 249, Issue 3, Page 1124-1144, February 2026.
Summary NRT1/PTR FAMILY (NPF) transporters play crucial roles in plant physiology and development due to their involvement in nitrogen nutrition and their ability to transport multiple signaling molecules and metabolites. Whereas most eukaryotic and prokaryotic NPF orthologs are peptide transporters, most flowering plant NPF transport other substrates ...
Laura Morales de Los Ríos, The Dan Pham, Thibaut Perez, Myriam Ben Amar, Claire Corratgé‐Faillie, François Barbier, Benoit Lacombe   +6 more
wiley   +1 more source

Estructura molecular y funciones del Chitosan, una revisión bibliográfica

, 2022
La hemorragia masiva continúa siendo una de las principales causas de muerte prematura en el entorno prehospitalario. El quitosano ha sido en los últimos años uno de los materiales utilizados en el ambiente militar y civil para el control del sangrado. El propósito de esta revisión bibliográfica es contextualizar los usos de este biopolímero analizando
openaire   +1 more source

Estructura computacional i aplicacions de la semblança molecular quàntica

, 2003
La tesis tracta diferents aspectes relacionats amb el càlcul de la semblança quàntica, així com la seva aplicació en la racionalització i predicció de l'activitat de fàrmacs. Es poden destacar dos progressos importants en el desenvolupament de noves metodologies que faciliten el càlcul de les mesures de semblança quàntica. En primer lloc, la descripció
openaire   +2 more sources

SWEET1‐mediated glucose transport is crucial for energy availability in Arabidopsis

New Phytologist, Volume 249, Issue 4, Page 1816-1830, February 2026.
Summary The stress‐responsive hormone abscisic acid (ABA) is known for its inhibitory effects on various physiological processes, including seed germination, often resulting in energy deprivation. Interestingly, ABA‐induced germination inhibition can be alleviated by exogenous glucose (Glc), mimicking a functional interplay between ABA and sugar ...
Xueyi Xue, Jiankun Li, Ya‐Chi Yu, Li‐Qing Chen   +3 more
wiley   +1 more source

Loss of E3 ligase HvST1 function substantially increases distal crossover frequency

New Phytologist, Volume 249, Issue 3, Page 1325-1341, February 2026.
Summary This study characterizes the function of a grass‐specific E3 ubiquitin ligase, HvST1, in regulating synapsis and crossover (CO) formation during meiosis in barley (Hordeum vulgare). In large‐genome cereals, COs are predominantly restricted to distal chromosomal regions, limiting genetic recombination and breeding flexibility.
Jamie Neil Orr, Sybille Ursula Mittmann, Luke Ramsay, Dominika Lewandowska, Abdellah Barakate, Malcolm Macaulay, Nicola McCallum, Robbie Waugh, Isabelle Colas   +8 more
wiley   +1 more source

Estudien la colonització transoceànica de la mosca Drosophila [PDF]

, 2007
Drosophila buzzattii és una espècie de mosca del vinagre que va arribar a Europa procedent d'Argentina fa 300 anys. S'ha observat que el genoma de les mosques europees presenta diferències respecte el de les seves homologues d'Amèrica del Sud. En concret,
García Guerreiro, María Pilar
core   +1 more source

A novel mechanism of auxin habituation: upregulation of auxin receptor TRANSPORT INHIBITOR RESPONSE 1 allows cell proliferation independent of external auxin

New Phytologist, Volume 249, Issue 3, Page 1268-1282, February 2026.
Summary Exogenously applied auxins are essential for establishing cell lines in tissue cultures and maintaining their proliferation. Cell lines may develop the ability to proliferate even in media lacking auxin, they may become auxin‐habituated. This study investigated the mechanisms underlying this process.
Pavel Jelínek, Karel Müller, Eliška Kobercová, Adéla Přibylová, Milada Čovanová, Petre I. Dobrev, Roberta Vaculíková, Zuzana Vondráková, Lenka Helusová, Anita Bírošíková, Lukáš Fischer, Jan Petrášek   +11 more
wiley   +1 more source

[The double helix model of DNA: Its impact on biology and medicine 70 years after its initial publication]. [PDF]

Rev Med Inst Mex Seguro Soc, 2023
Valdés-López V, Moreno-Rodríguez J.
europepmc   +1 more source

Virus: breve reseña biológica y molecular. [PDF]

, 2006
Al referirse al virus como una estructura de organización simple se debe a que estos se constituyen en una forma más sencilla por dos principales macromoléculas: ácido nucleico y proteínas.
Ayala, Rigoberto
core  

The frequency and importance of polyploidy in tropical rainforest tree radiations

New Phytologist, Volume 249, Issue 4, Page 2103-2114, February 2026.
Summary The presence of more than two copies of the genome in an organism, termed ‘polyploidy’, is a crucial force in plant evolution, generating genetic, phenotypic and ecological diversity. [Correction added on 22 January 2026, after first online publication: the preceding sentence has been corrected.] The Amazonian tree flora is the most species ...
Rowan J. Schley, Rosalía Piñeiro, James A. Nicholls, Michelle L. Gaynor, Gwilym P. Lewis, Flávia Fonseca Pezzini, Kyle G. Dexter, Catherine Kidner, R. Toby Pennington, Alex D. Twyford   +9 more
wiley   +1 more source