Using HYDRUS-2D model to simulate the water flow and nitrogen transport in a paddy field with traditional flooded irrigation

Author(s):  
Xiaoying Sun ◽  
Juxiu Tong ◽  
Cong Liu ◽  
Yanbao Ma
2014 ◽  
Vol 15 (8) ◽  
pp. 1847-1859 ◽  
Author(s):  
Vilim Filipović ◽  
Gurpal S. Toor ◽  
Gabrijel Ondrašek ◽  
Radka Kodešová

2020 ◽  
Vol 242 ◽  
pp. 106391
Author(s):  
Kazuhiro Nishida ◽  
Takaaki Harashima ◽  
Shuichiro Yoshida ◽  
Satoshi Ohno

Author(s):  
A.J. Mia ◽  
L.X. Oakford ◽  
T. Yorio

The amphibian urinary bladder has been used as a ‘model’ system for studies of the mechanism of action of antidiuretic hormone (ADH) in stimulating transepithelial water flow. The increase in water permeability is accompanied by morphological changes that include the stimulation of apical microvilli, mobilization of microtubules and microfilaments and vesicular membrane fusion events . It has been shown that alterations in the cytosolic calcium concentrations can inhibit ADH transmembrane water flow and induce alterations in the epithelial cell cytomorphology, including the cytoskeletal system . Recently, the subapical granules of the granular cell in the amphibian urinary bladder have been shown to contain high concentrations of calcium, and it was suggested that these cytoplasmic constituents may act as calcium storage sites for intracellular calcium homeostasis. The present study utilizes the calcium antagonist, verapamil, to examine the effect of calcium deprivation on the cytomorphological features of epithelial cells from amphibian urinary bladder, with particular emphasis on subapical granule and microfilament distribution.


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