The Hydration-Induced Ca2+ Release Is a General Phenomenon in Characeae
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چکیده
منابع مشابه
Characeae Biomass: Is the Subject Exhausted?
Popularly known as stoneworts, brittleworts, muskgrass, muskworts or bass-weeds, Characeae are among the largest and most complex green algae. All common names come from some characteristics these plants may exhibit, such as the brittle, limestone (calcium carbonate) exoskeleton that can form on the external surfaces of the plant (e.g. Chara vulgaris and Chara globularis) and, particularly, fro...
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The regulation of Ca(2+) release by luminal Ca(2+) has been well studied for the ryanodine and IP(3) receptors but has been less clear for the NAADP-regulated channel. In view of conflicting reports, we have re-examined the issue by manipulating luminal Ca(2+) with the membrane-permeant, low affinity Ca(2+) buffer, TPEN, and monitoring NAADP-induced Ca(2+) release in sea urchin egg homogenate. ...
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Ca(2+) influx across plasma membranes may trigger Ca(2+) release by activating ryanodine-sensitive receptors in the sarcoplasmic reticulum. This process is called Ca(2+)-induced Ca(2+) release, and may be important in regulating cytosolic Ca(2+) concentration ([Ca(2+)](i)). In cardiac cells, the initial [Ca(2+)](i) increase, caused by L-type Ca(2+) current, is profoundly amplified with Ca(2+) r...
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OBJECTIVE Conditions of ischemia-reperfusion disturb the homoeostasis of cytosolic Ca2+ in cardiac microvascular endothelial cells (CMEC), leading to numerous malfunctions of the endothelium. Reperfusion specifically aggravates the Ca2+ overload developed during sustained ischemia. The aim of this study was to identify the origin of the reperfusion-induced part of the Ca2+ overload. Our hypothe...
متن کاملHydration-dependent dynamic crossover phenomenon in protein hydration water.
The characteristic relaxation time τ of protein hydration water exhibits a strong hydration level h dependence. The dynamic crossover is observed when h is higher than the monolayer hydration level hc=0.2-0.25 and becomes more visible as h increases. When h is lower than hc, τ only exhibits Arrhenius behavior in the measured temperature range. The activation energy of the Arrhenius behavior is ...
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ژورنال
عنوان ژورنال: Plant and Cell Physiology
سال: 1996
ISSN: 0032-0781,1471-9053
DOI: 10.1093/oxfordjournals.pcp.a029040