geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Generation of a membrane potential by electron transport in plasmalemma-enriched vesicles of cotton and radish


, : Generation of a membrane potential by electron transport in plasmalemma-enriched vesicles of cotton and radish. Plant Physiology 85(4): 872-875

Plasmalemma-enriched vesicles were isolated from cotton roots (Gossypium hirsutum L. cv Acala San Jose 2) and from germinating radish seeds (Raphanus sativa L. cv Tondo Rosso Quarantino). When 100 millimolar ascorbate was added to the grinding medium, the addition of ferricyanide to either preparation led to an inside positive membrane potential as measured by the accumulation of thiocyanate. It is suggested that electrons from ascorbate were being transported electrogenically across the membrane to ferricyanide, resulting in an accumulation of protons within the vesicle. The redox activity of the vesicles has some similarities to that occurring in intact cells, thus providing a simpler system to study the components and effects of transmembrane electron transport.

US$29.90

PMID: 16665822


Other references

Murai, S.; Haga, T.; Sakashita, N.; Nakamura, Y.; Honda, C.; Honzawa, S.; Kimura, F.; Tsujii, Y.; Nishiyama, R., 1995: Synthesis and herbicidal activity of sulfonylureas; SL-950 and its related compounds. As a results of years of studies on pyridylsulfonylureas we have found that novel compounds bearing substituted carbamoyl moiety on the 3-position of the pyridine ring were quite safe for corn (Zea mays). After studying the structure-activity rela...

Ekstrand, B.C.; Horning, S.J., 2002: Lymphocyte predominant Hodgkin's disease. Lymphocyte predominant Hodgkin's disease (LPHD) is a rare type of B-cell lymphoma with unique pathologic and clinical features that distinguish it from other types of Hodgkin's disease. Patients with LPHD tend to be younger males who pre...

Norman, Hd, 1981: Early milk production and conformation scores as profit indicators. Dairy science handbook4(14): 67-73

Anonymous, 2013: Reduction of Occupational Risks at Low-Tech Composting Plants in Developing Countries - Case Study ENPRO Composting Site Lom , Togo. Manual sorting and composting of mixed municipal household waste is associated with occupational hazards. This case study aimed at finding sustainable solutions to alleviate occupational risks for workers at a composting site in Lom , Togo and at...

Radhakrishnan, A.; McConnell, H.M., 2000: Electric field effect on cholesterol-phospholipid complexes. Monolayer mixtures of dihydrocholesterol and phospholipids at the air-water interface are used to model membranes containing cholesterol and phospholipids. Specific, stoichiometric interactions between cholesterol and some but not all phospholipid...

Toplak, H.; Haller, E.M.; Lauermann, T.; Weber, K.; Bahadori, B.; Reisinger, E.C.; Tilz, G.P.; Wascher, T.C., 1996: Increased prevalence of IgA-Chlamydia antibodies in NIDDM patients. Chlamydia trachomatis oculogenital infection is a common disease in western societies. Despite the fact that diabetes is accompanied by increased risk for infections, no data on chlamydial infections in the non-insulin-dependent diabetic (NIDDM) p...

Kitaoka, M.; Robyt, J.F., 1999: Mechanism of the action of Leuconostoc mesenteroides B-512FMC dextransucrase: kinetics of the transfer of D-glucose to maltose and the effects of enzyme and substrate concentrations. The kinetics of the reaction of Leuconostoc mesenteroides B-512FMC dextransucrase with sucrose were studied. This enzyme catalyzes the synthesis of dextran from sucrose with a k(cat) of 641 s(-1) and the transfer of D-glucose from sucrose to malto...

Bawden, H., N.; Stokes, A.; Camfield, C., S.; Camfield, P., R.; Salisbury, S., 1998: Peer relationship problems in children with Tourette's disorder or diabetes mellitus. Peer relationships, social skills, self-esteem, parental psychopathology, and family functioning of children with Tourette's disorder and a chronic disease control group of children with diabetes mellitus were compared. Children with Tourette...

O'Dey, D.Mon.; Bozkurt, A.; Pallua, N., 2010: The anterior Obturator Artery Perforator (aOAP) flap: surgical anatomy and application of a method for vulvar reconstruction. Vulvar reconstruction following oncologic resection is challenging. Some flaps used for reconstruction can show adverse characteristics such as excessive tissue bulk or increased distance to the defect. Region of the sulcus genitofemoralis is of t...

Siminiak, T.; Smielecki, J.; Dye, J.F.; Balinski, M.; More, R.; Wysocki, H.; Sheridan, D.J., 1997: Increased release of the soluble endothelial adhesion molecule ICAM-1 but not ELAM-1 during episodes of angina pectoris. Journal of the American College of Cardiology 29(2 SUPPL A): 366A