scholarly journals Actin Filaments Modulate Both Stomatal Opening and Inward K+-Channel Activities in Guard Cells of Vicia faba L

1997 ◽  
Vol 115 (2) ◽  
pp. 335-342 ◽  
Author(s):  
J. U. Hwang ◽  
S. Suh ◽  
H. Yi ◽  
J. Kim ◽  
Y. Lee
Keyword(s):  
Vicia Faba ◽  
Actin Filaments ◽  
Guard Cells ◽  
Stomatal Opening ◽  
K Channel ◽  
Vicia Faba L

Fluxes of 86Rb+ in ?isolated? guard cells of Vicia faba L.

Planta ◽  
1990 ◽  
Vol 181 (3) ◽  
Author(s):  
H.M. Brindley
Keyword(s):  
Vicia Faba ◽  
Guard Cells ◽  
Vicia Faba L

Cytokinin- and auxin-induced stomatal opening involves a decrease in levels of hydrogen peroxide in guard cells of Vicia faba

2006 ◽  
Vol 33 (6) ◽  
pp. 573 ◽  
Author(s):  
Xi-Gui Song ◽  
Xiao-Ping She ◽  
Jun-Min He ◽  
Chen Huang ◽  
Tu-sheng Song
Keyword(s):  
Hydrogen Peroxide ◽  
Vicia Faba ◽  
Laser Scanning ◽  
Guard Cells ◽  
Laser Scanning Confocal Microscopy ◽  
Stomatal Opening ◽  
Scanning Confocal Microscopy ◽  
Diphenylene Iodonium ◽  
The Relationship ◽  
Exogenous H2o2

Previous studies have shown that cytokinins and auxins can induce the opening of stomata. However, the mechanism of stomatal opening caused by cytokinins and auxins remains unclear. The purpose of this paper is to investigate the relationship between hydrogen peroxide (H2O2) levels in guard cells and stomatal opening induced by cytokinins and auxins in Vicia faba. By means of stomatal bioassay and laser-scanning confocal microscopy, we provide evidence that cytokinins and auxins reduced the levels of H2O2 in guard cells and induced stomatal opening in darkness. Additionally, cytokinins not only reduced exogenous H2O2 levels in guard cells caused by exposure to light, but also abolished H2O2 that had been generated during a dark period, and promoted stomatal opening, as did ascorbic acid (ASA, an important reducing substrate for H2O2 removal). However, unlike cytokinins, auxins did not reduce exogenous H2O2, did not abolish H2O2 that had been generated in the dark, and therefore did not promote reopening of stoma induced to close in the dark. The above-mentioned effects of auxins were similar to that of diphenylene iodonium (DPI, an inhibitor of the H2O2-generating enzyme NADPH oxidase). Taken together our results indicate that cytokinins probably reduce the levels of H2O2 in guard cells by scavenging, whereas auxins limit H2O2 levels through restraining H2O2 generation, inducing stomatal opening in darkness.

scholarly journals Preparation of Rolled Epidermis of Vicia Faba L. So That Stomata are the Only Viable Cells: Analysis of Guard Cell Potassium by Flame Photometry

1973 ◽  
Vol 26 (2) ◽  
pp. 309 ◽  
Author(s):  
WG Allaway ◽  
TC Hsiao
Keyword(s):  
Vicia Faba ◽  
Guard Cell ◽  
Guard Cells ◽  
Flame Photometry ◽  
Viable Cells ◽  
Rolling Technique ◽  
Vicia Faba L

A rolling technique is described with which cells in epidermal strips of V. faba were differentially broken so that only guard cells remained alive and functional. In rolled epidermis potassium was retained only in live guard cells, as judged by staining with cobaltinitrite.

Volatile allelochemicals from Chenopodium ambrosioides L. induced guard cells apoptosis and its signal regulation in Vicia faba L.

2017 ◽  
Vol 37 (17) ◽  
Author(s):  
周健 ZHOU Jian ◽  
王亚男 WANG Ya'nan ◽  
马丹炜 MA Danwei ◽  
黄素 HUANG Su ◽  
辛文媛 XIN Wenyuan ◽  
...  
Keyword(s):  
Vicia Faba ◽  
Guard Cells ◽  
Chenopodium Ambrosioides ◽  
Vicia Faba L ◽  
Volatile Allelochemicals ◽  
Signal Regulation

Synergistic action of red and blue light and action spectra for malate formation in guard cells of Vicia faba L.

Planta ◽  
1978 ◽  
Vol 142 (1) ◽  
pp. 61-65 ◽  
Author(s):  
Teruo Ogawa ◽  
Hirohisa Ishikawa ◽  
Keizo Shimada ◽  
Kazuo Shibata
Keyword(s):  
Vicia Faba ◽  
Blue Light ◽  
Guard Cells ◽  
Synergistic Action ◽  
Action Spectra ◽  
Vicia Faba L
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