Xylem water flow in a crack willow tree (Salix fragilis L.) in relation to diurnal changes of environment

Oecologia ◽  
1984 ◽  
Vol 64 (2) ◽  
pp. 145-151 ◽  
Author(s):  
Jan Čermák ◽  
Jan Jeník ◽  
Jiří Kučera ◽  
Vladimír Žídek
Keyword(s):  
Water Flow ◽  
Diurnal Changes ◽  
Salix Fragilis ◽  
Xylem Water Flow ◽  
Willow Tree

scholarly journals Hydrogel Regulation of Xylem Water Flow: An Alternative Hypothesis: Figure 1.

2011 ◽  
Vol 157 (4) ◽  
pp. 1642-1649 ◽  
Author(s):  
Wouter G. van Doorn ◽  
Tjisse Hiemstra ◽  
Dimitrios Fanourakis
Keyword(s):  
Water Flow ◽  
Alternative Hypothesis ◽  
Xylem Water Flow

Simulation of stand transpiration based on a xylem water flow model for individual trees

2013 ◽  
Vol 182-183 ◽  
pp. 31-42 ◽  
Author(s):  
Rainer Hentschel ◽  
Sebastian Bittner ◽  
Michael Janott ◽  
Christian Biernath ◽  
Jutta Holst ◽  
...  
Keyword(s):  
Water Flow ◽  
Flow Model ◽  
Stand Transpiration ◽  
Xylem Water Flow ◽  
Individual Trees

Xylem water flow in tropical vines as measured by a steady state heating method

Oecologia ◽  
1990 ◽  
Vol 82 (3) ◽  
pp. 355-361 ◽  
Author(s):  
K. Fichtner ◽  
E. -D. Schulze
Keyword(s):  
Steady State ◽  
Water Flow ◽  
Heating Method ◽  
Xylem Water Flow

Effect of verapamil on cytoplasmic distribution of granules and microfilaments in amphibian urinary bladder

1988 ◽  
Vol 46 ◽  
pp. 324-325
Author(s):  
A.J. Mia ◽  
L.X. Oakford ◽  
T. Yorio
Keyword(s):  
Urinary Bladder ◽  
Water Flow ◽  
Morphological Changes ◽  
Granular Cell ◽  
Cytosolic Calcium ◽  
Calcium Storage ◽  
Amphibian Urinary Bladder ◽  
Vesicular Membrane ◽  
High Concentrations ◽  
Cytoskeletal System

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.

Sign in / Sign up

Export Citation Format

Share Document