Results 141 to 150 of about 121,926 (279)

Use of organ-culture, irradiation and adoptive-transfer to investigate the role of the xenopus thymus in t lymphocyte development [PDF]

open access: yes, 1986
This Thesis attempts to develop an amphibian model system for exploring the role of the thymus, particularly its stromal cells, in the acquisition of allotolerance. Inbred, clonal and cytogenetically- marked Xenopus are used in this work.
Russ, Jane Hannah
core  

Spatial Regulation of Silicon Accumulation in Peduncle Confers Sheathed Spike in Barley

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Peduncle, the uppermost internode in cereals, connects the stem to the inflorescence and is critical for the transport of water, nutrients and photosynthetic assimilates. While peduncle length associates with plant height and its elongation is primarily regulated by phytohormones, we report a previously unrecognized mechanism involving the ...
Wenxue Wu   +11 more
wiley   +1 more source

The Dual‐Function of CtrNAC019‐CtrNPF2.1 Module in Salt Tolerance and Nitrogen Use Efficiency Via Enhancing Vacuolar Chloride Sequestration and Nitrate Efflux in Citrus trifoliata

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Salt stress and nitrogen utilisation efficiency (NUE) represent critical constraints affecting worldwide crop productivity. While nitrate transporter proteins (NPFs) have been implicated in saline chloride (Cl−) ion transport, the mechanistic linkage between chloride stress and NUE remains poorly understood.
Zeqi Zhao   +6 more
wiley   +1 more source

The CaM1‐CBP60b‐MYB77 Transcriptional Cascade Regulates K+ Homeostasis and Salt Tolerance in Barley

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Soil salinity is a major abiotic stress that threatens global crop productivity. Calcium (Ca2+) is a pivotal second messenger in plant stress signalling, but how Ca2+ sensors such as calmodulin (CaM) transcriptionally control ion homeostasis and salt tolerance remains largely understood in crops.
Yunfeng Xu   +18 more
wiley   +1 more source

Cholesterol Selectively Activates Canonical Wnt Signaling over Non-Canonical Wnt Signaling during Xenopus development

open access: yes, 2014
1
한진관   +7 more
core  

Calcium requirements during mitotic cdc2 kinase activation and cyclin degradation in Xenopus egg extracts. [PDF]

open access: yes, 1995
Activation of p34cdc2 kinase is essential for entry into mitosis while subsequent deactivation and cyclin degradation are associated with exit. In Xenopus embryos, both of these phases are regulated by post-translational modifications and occur ...
Whitaker, Michael J.   +2 more
core  

MCT1‐mediated bidirectional propionate transport across human placental syncytiotrophoblast layer: insights from a trophoblast stem cell‐derived barrier model

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Propionate in the fetal circulation is thought to originate from fermentation of dietary fibre by the maternal gut microbiota. However, the mechanism of transplacental transport has remained unclear. Here, we measured propionate permeability using a placental barrier model generated by differentiating human placental trophoblast ...
Toshiaki Tsuchitani   +8 more
wiley   +1 more source

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