scholarly journals Root Plasma Membrane Transporters Controlling K+/Na+ Homeostasis in Salt-Stressed Barley

2007 ◽  
Vol 145 (4) ◽  
pp. 1714-1725 ◽  
Author(s):  
Zhonghua Chen ◽  
Igor I. Pottosin ◽  
Tracey A. Cuin ◽  
Anja T. Fuglsang ◽  
Mark Tester ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Membrane Transporters ◽  
Root Plasma Membrane

Electrostatic analysis of effects of ions on the inhibition of corn root plasma membrane Mg2+-ATPase by the bivalent orthovanadate

1989 ◽  
Vol 979 (1) ◽  
pp. 46-52 ◽  
Author(s):  
Rémy Gibrat ◽  
Jean-Pierre Grouzis ◽  
Jacqueline Rigaud ◽  
Nathalie Galtier ◽  
Claude Grignon
Keyword(s):  
Plasma Membrane ◽  
Corn Root ◽  
Root Plasma Membrane

A mass spectrometric approach to identify arbuscular mycorrhiza-related proteins in root plasma membrane fractions

PROTEOMICS ◽  
2006 ◽  
Vol 6 (S1) ◽  
pp. S145-S155 ◽  
Author(s):  
Benoît Valot ◽  
Luc Negroni ◽  
Michel Zivy ◽  
Silvio Gianinazzi ◽  
Eliane Dumas-Gaudot
Keyword(s):  
Plasma Membrane ◽  
Arbuscular Mycorrhiza ◽  
Mass Spectrometric ◽  
Mass Spectrometric Approach ◽  
Related Proteins ◽  
Root Plasma Membrane

Calcium- and potassium-permeable plasma membrane transporters are activated by copper inArabidopsisroot tips: linking copper transport with cytosolic hydroxyl radical production

2012 ◽  
Vol 36 (4) ◽  
pp. 844-855 ◽  
Author(s):  
ANA RODRIGO-MORENO ◽  
NURIA ANDRÉS-COLÁS ◽  
CHARLOTTE POSCHENRIEDER ◽  
BENET GUNSÉ ◽  
LOLA PEÑARRUBIA ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Hydroxyl Radical ◽  
Copper Transport ◽  
Membrane Transporters ◽  
Radical Production

Identification of ferrichrome- and ferrioxamine B-mediated iron uptake by Aspergillus fumigatus

2016 ◽  
Vol 473 (9) ◽  
pp. 1203-1213 ◽  
Author(s):  
Yong-Sung Park ◽  
Ju-Yeon Kim ◽  
Cheol-Won Yun
Keyword(s):  
Gene Expression ◽  
Plasma Membrane ◽  
Aspergillus Fumigatus ◽  
Virulence Factors ◽  
Membrane Transporters ◽  
Yeast Cells ◽  
Double Deletion ◽  
Ferrioxamine B ◽  
Uptake Activity ◽  
Opportunistic Fungal Pathogen

Aspergillus fumigatus is an opportunistic fungal pathogen for immunocompromised patients, and genes involved in siderophore metabolism have been identified as virulence factors. Recently, we identified the membrane transporters sit1 and sit2, which are putative virulence factors of A. fumigatus; sit1 and sit2 are homologous to yeast Sit1, and sit1 and sit2 gene expression was up-regulated after iron depletion. When expressed heterologously in Saccharomyces cerevisiae, sit1 and sit2 were localized to the plasma membrane; sit1 efficiently complemented ferrichrome (FC) and ferrioxamine B (FOB) uptake in yeast cells, whereas sit2 complemented only FC uptake. Deletion of sit1 resulted in a decrease in FOB and FC uptake, and deletion of sit2 resulted in a decrease in FC uptake in A. fumigatus. It is of interest that a sit1 and sit2 double-deletion mutant resulted in a synergistic decrease in FC uptake activity. Both sit1 and sit2 were localized to the plasma membrane in A. fumigatus. The expression levels of the sit1 and sit2 genes were dependent on hapX under low-but not high-iron conditions. Furthermore, mirB, and sidA gene expression was up-regulated and sreA expression down-regulated when sit1 and sit2 were deleted. Although sit1 and sit2 failed to affect mouse survival rate, these genes affected conidial killing activity. Taken together, our results suggest that sit1 and sit2 are siderophore transporters and putative virulence factors localized to the plasma membrane.

scholarly journals Effect of nitrate supply and mycorrhizal inoculation on characteristics of tobacco root plasma membrane vesicles

Planta ◽  
2009 ◽  
Vol 231 (2) ◽  
pp. 425-436 ◽  
Author(s):  
Martin Moche ◽  
Stefanie Stremlau ◽  
Lars Hecht ◽  
Cornelia Göbel ◽  
Ivo Feussner ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Membrane Vesicles ◽  
Plasma Membrane Vesicles ◽  
Nitrate Supply ◽  
Mycorrhizal Inoculation ◽  
Root Plasma Membrane

Roles of Plasma Membrane Transporters in Phloem Functions

Phloem ◽  
2012 ◽  
pp. 61-101 ◽  
Author(s):  
Mechthild Tegeder ◽  
Yong-Ling Ruan ◽  
John W. Patrick
Keyword(s):  
Plasma Membrane ◽  
Membrane Transporters

Identification of Two Arabidopsis thaliana Plasma Membrane Transporters Able to Transport Glucose 1-Phosphate

2019 ◽  
Vol 61 (2) ◽  
pp. 381-392
Author(s):  
Irina Malinova ◽  
Stella Kössler ◽  
Tom Orawetz ◽  
Ulrike Matthes ◽  
Slawomir Orzechowski ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Plasma Membrane ◽  
Carbohydrate Metabolism ◽  
Transport Processes ◽  
Membrane Transporters ◽  
In Planta ◽  
Sugar Derivative ◽  
Sugar Metabolites

Abstract Primary carbohydrate metabolism in plants includes several sugar and sugar-derivative transport processes. Over recent years, evidences have shown that in starch-related transport processes, in addition to glucose 6-phosphate, maltose, glucose and triose-phosphates, glucose 1-phosphate also plays a role and thereby increases the possible fluxes of sugar metabolites in planta. In this study, we report the characterization of two highly similar transporters, At1g34020 and At4g09810, in Arabidopsis thaliana, which allow the import of glucose 1-phosphate through the plasma membrane. Both transporters were expressed in yeast and were biochemically analyzed to reveal an antiport of glucose 1-phosphate/phosphate. Furthermore, we showed that the apoplast of Arabidopsis leaves contained glucose 1-phosphate and that the corresponding mutant of these transporters had higher glucose 1-phosphate amounts in the apoplast and alterations in starch and starch-related metabolism.

Exercise training increases the number of glucose transporters in rat adipose cells

1989 ◽  
Vol 257 (4) ◽  
pp. E520-E530
Author(s):  
M. F. Hirshman ◽  
L. J. Wardzala ◽  
L. J. Goodyear ◽  
S. P. Fuller ◽  
E. D. Horton ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Glucose Transport ◽  
Glucose Transporters ◽  
Membrane Transporters ◽  
Control Group ◽  
Transport Activity ◽  
Insulin Stimulation ◽  
Adipose Cell ◽  
Adipose Cell Size ◽  
Adipose Cells

We studied the mechanism for the increase in glucose transport activity that occurs in adipose cells of exercise-trained rats. Glucose transport activity, glucose metabolism, and the subcellular distribution of glucose transporters were measured in adipose cells from rats raised in wheel cages for 6 wk (mean total exercise 350 km/rat), age-matched sedentary controls, and young sedentary controls matched for adipose cell size. Basal rates of glucose transport and metabolism were greater in cells from exercise-trained rats compared with young controls, and insulin-stimulated rates were greater in the exercise-trained rats compared with both age-matched and young controls. The numbers of plasma membrane glucose transporters were not different among groups in the basal state; however, with insulin stimulation, cells from exercise-trained animals had significantly more plasma membrane transporters than young controls or age-matched controls. Exercise-trained rats also had more low-density microsomal transporters than control rats in the basal state. When the total number of glucose transporters/cell was calculated, the exercise-trained rats had 42% more transporters than did either control group. These studies demonstrate that the increased glucose transport and metabolism observed in insulin-stimulated adipose cells from exercise-trained rats is due, primarily, to an increase in the number of plasma membrane glucose transporters translocated from an enlarged intracellular pool.

Sign in / Sign up

Export Citation Format

Share Document