Results 61 to 70 of about 13,066 (249)

NRT2.5 a putative sodium dependent high affinity nitrate trasnporter of zostera marina l. [PDF]

open access: yes, 2018
Seagrasses are the only group of vascular plants that recolonized the marine environment, possibly the most severe habitat shift ever accomplished by flowering plants.
Botella-Mesa, Miguel Angel   +3 more
core  

Dapagliflozin stimulates glucagon secretion at high glucose: experiments and mathematical simulations of human A-cells. [PDF]

open access: yes, 2016
Glucagon is one of the main regulators of blood glucose levels and dysfunctional stimulus secretion coupling in pancreatic A-cells is believed to be an important factor during development of diabetes.
Ahlstedt, I.   +3 more
core   +1 more source

Long-term prenatal stress increases susceptibility of N-methyl-D-aspartic acid-induced spasms in infant rats [PDF]

open access: yesKorean Journal of Pediatrics, 2018
PurposeInfantile spasms, also known as West syndrome, is an age-specific epileptic seizure. Most patients with this condition also exhibit delayed development.
Hyeok Hee Kwon   +4 more
doaj   +1 more source

Perturbation of Anion/Cation Transport Leads to Apical Panicle Abortion in Rice by Disrupting Ca2+ Homeostasis

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Calcium ion (Ca2+) is an essential plant nutrient required for cell structure establishment, as well as a counter‐cation of an anion and an intracellular messenger. Calcium is absorbed from soil by roots and delivered to shoots through the xylem. The process must be finely balanced to avoid excessive accumulation.
Bojuan Liu   +10 more
wiley   +1 more source

Nuclear medicine in endocrine tumours [PDF]

open access: yes, 2011
C
Peremans, Kathelijne   +1 more
core   +2 more sources

Na+-dependent and Na+-independent betaine transport across the apical membrane of rat renal epithelium [PDF]

open access: yes, 2015
The low renal excretion of betaine indicates that the kidney efficiently reabsorbs the betaine filtered by the glomeruli but the mechanisms involved in such a process have been scarcely investigated.
Calonge Castrillo, María Luisa   +2 more
core   +1 more source

PPSR1 Protein Functions as an Important Regulator to Enhance Plant Growth Performance Under N, P, and K Deficient Stress Conditions

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Phosphorus (P) is an essential macronutrient for various biological processes in plant growth. Modern agricultural science has advanced the knowledge of regulatory mechanisms underlying phosphorus starvation responses (PSRs), aiming to develop phosphate‐efficient crops with sustainable production under reduced Pi fertilizer application ...
Jieyu Chen   +7 more
wiley   +1 more source

Expression of Ion Transporters and Na+/K+-ATPase and H+-ATPase Activities in the Gills and Kidney of Silver Catfish (Rhamdia quelen) Exposed to Different pHs

open access: yesFishes, 2022
Exposure to acidic and alkaline pHs results in an ionic imbalance. Cellular responses involved in osmoregulation in silver catfish exposed to different pHs (5.5, 7.5, and 9.0) for 24 h were evaluated. The gills and kidney were collected to measure Na+/K+-
Morgana Tais Streck Marx   +8 more
doaj   +1 more source

Delineating Electrogenic Reactions during Lactose/H+ Symport [PDF]

open access: yesBiochemistry, 2010
Electrogenic reactions accompanying downhill lactose/H(+) symport catalyzed by the lactose permease of Escherichia coli (LacY) have been assessed using solid-supported membrane-based electrophysiology with improved time resolution. Rates of charge translocation generated by purified LacY reconstituted into proteoliposomes were analyzed over a pH range ...
Garcia-Celma, Juan J   +4 more
openaire   +4 more sources

A novel single‐cell NAD‐ME C4 subtype integrated with CAM and bicarbonate use in an aquatic plant

open access: yesNew Phytologist, Volume 249, Issue 5, Page 2386-2401, March 2026.
Summary Many plants maximize photosynthesis by using a CO2‐concentrating mechanism (CCM). Based on physiology, the freshwater plant Ottelia alismoides has three CCMs: C4 metabolism (NAD‐malic enzyme (NAD‐ME) subtype) and bicarbonate‐use during the day plus crassulacean acid metabolism (CAM) at night and lacks Kranz anatomy. Here, we combined a range of
Hong Sheng Jiang   +11 more
wiley   +1 more source

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