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

Interaction between photosynthetic and respiratory electron-transfer chains in the membranes of Anabaena variabilis


, : Interaction between photosynthetic and respiratory electron-transfer chains in the membranes of Anabaena variabilis. Planta 166(2): 182-186

The rate of CO2- and p-benzoquione-dependent photosynthetic O2 evolution by Anabaena variabilis cells remained unaltered and the rate of O2 uptake observed after switching off the light (endogenous respiration) was enhanced by a factor of 6-8 when the O2 concentration was increased from 200 to 400 μM. Photosystem-I-linked O2 uptake and respiration of the cells incubated with ascorbate and N,N,N'N'-tetramethyl-p-phenylenediamine was not appreciable influenced by the O2 concentration. 2-Iodo-6-isopropyl-3-methyl-2',4,4'-trinitrodiphenyl ether, blocking electron transfer at the plastoquinone level, suppressed O2 evolution and had no influence on endogenous respiration. 2-n-Heptyl-4-hydroxyquinoline-N-oxide, an inhibitor of electron transfer between photosystems II and I, as well as the cytochrome-oxidase inhibitors N 3 (-) , CN(-) and NH2OH, caused a 35-50% retardation of endogenous respiration and blocked photosynthetic O2 evolution. The molar ratio of cytochromes b6, f, c-553, aa3 and photosystem-I reaction centers in the isolated membranes equalled approx. 2:1:2:0.7:2. It is inferred that endogenous respiration of A. variabilis cells is inhibited by the light-induced electron flow through both photosystems at the level of the plastoquinone-plastocyanin-oxidoreductase complex.

US$19.90

PMID: 24241430

DOI: 10.1007/BF00397346


Other references

Andre, M.; Terada, M.; Watanabe, Y., 1997: Sperm whale (Physeter macrocephalus) behavioural response after the playback of artificial sounds. Shipping has been responsible recently for many collisions with cetaceans in the Canary Islands, particularly sperm whales which are present throughout the years in these waters. A series of experiments, including the playback of artificial sounds...

Spitzer, C.; Brandl, S.; Rose, H-Joachim.; Nauck, M.; Freyberger, H.J., 2005: Gender-specific association of alexithymia and norepinephrine/cortisol ratios. A preliminary report. Objective: Alexithymia and posttraumatic stress disorder (PTSD) might share a neuroendocrine pattern characterized by increased urinary norepinephrine (N) and decreased cortisol (C) levels, resulting in a high N/C ratio, at least among male alcoho...

Roseland C.R.; Grodowitz M.J.; Kramer K.J.; Hopkins T.L.; Broce A.B., 1985: Stabilization of mineralized and sclerotized puparial cuticle of muscid flies. Ca, Mg and P are the major mineral elements in puparial exuviae of the face fly, Musca autumnalis, house fly, M. domestica and stable fly, Stomoxys calcitrans, but they are 20-50 times more prevalent in face fly than in the other two species that...

Cosson, B.; Couturier, A.; Le-Guellec, R.; Moreau, J.; Chabelskaya, S.; Zhouravleva, G.; Philippe, M., 2002: Characterization of the poly(A) binding proteins expressed during oogenesis and early development of Xenopus laevis. During vertebrate oogenesis and early embryogenesis, gene expression is governed mainly by translational control. The recruitment of Poly(A) Binding Protein (PABP) during poly(A) tail lengthening appears to be the key to translational activation d...

Liebermann, D.A.; Hoffman-Liebermann, B., 1989: Proto-oncogene expression and dissection of the myeloid growth to differentiation developmental cascade. Physiological inducers of myeloid cell growth and differentiation were used to simultaneously analyze the expression of the proto-oncogenes c-myc, c-myb, c-fos, c-fes and c-fms during normal myelopoiesis, where growth is coupled to differentiation...

Barber, H.S., 1914: Notes on a wood-boring syrphid. Proceedings of the Entomological Society of Washington DC: 15 151-153

Allen, S., C.; Acharya, K.R.vi; Palmer, K., A.; Shapiro, R.; Vallee, B., L.; Scheraga, H., A., 1994: A comparison of the predicted and X-ray structures of angiogenin. Implications for further studies of model building of homologous proteins. The three-dimensional structure of human angiogenin has been determined by X-ray crystallography and is compared here with an earlier model which predicted its structure, based on the homology of angiogenin with bovine pancreatic ribonuclease A. C...

Woodgate, S.L., 1996: Reduction in process pollution from enzyme assisted feather hydrolysis system. Poultry Science 75(SUPPL 1): 152

Walley, A.J.; Chavanas, S.; Moffatt, M.F.; Esnouf, R.M.; Ubhi, B.; Lawrence, R.; Wong, K.; Abecasis, G.R.; Jones, E.Y.; Harper, J.I.; Hovnanian, A.; Cookson, W.O., 2001: Gene polymorphism in Netherton and common atopic disease. Atopic dermatitis (AD) and asthma are characterized by IgE-mediated atopic (allergic) responses to common proteins (allergens), many of which are proteinases. Loci influencing atopy have been localized to a number of chromosomal regions, including...

Law, M.A.; Borasino, S.; McMahon, W.S.; Alten, J.A., 2015: Ultrasound- versus landmark-guided femoral catheterization in the pediatric catheterization laboratory: a randomized-controlled trial. Ultrasound (US) is the standard of care for vascular access in many clinical scenarios. Limited data exist regarding the benefits of US- versus landmark (LM)-guided femoral vascular access in the pediatric catheterization laboratory. This study ai...