Search results for "nitrate"

Effect of titanium (IV) application on some enzymatic activities in several developing stages of red pepper plants

1994

Abstract The effect of two titanium (IV) compounds, titanium ascorbate and titanium chloride, on some enzymatic activities, such as catalase, peroxidase, lipoxygenase and nitrate reductase in seeds, embryos, and seedlings and adult plants of red pepper (Capsicum annuum L.), was studied. A stimulatory effect of titanium was observed for every iron‐depending enzyme studied at all developing stages as well as for nitrate reductase but only for whole plants. This occurs because Ti+3/Ti+4 catalizes the activity of iron and enhances iron‐dependent enzymes.

In vitro control of adventitious bud differentiation by inorganic media components in leaves of matureJuniperus oxycedrus

1995

The effects of changes in the concentration of macronutrients on BA-induced caulogenesis from leaves of matureJuniperus oxycedrus cultured on modified Murashige and Skoog or Schenk and Hildebrandt media are reported. The bud-forming capacity of the explants depended mainly on the ratios among the levels of ammonium, nitrate, and potassium. The most favorable media formulations for differentiation of adventitious buds were those with nitrate:potassium, ammonium:potassium, and nitrate:ammonium ratios near 1, around 0.1, and between 9 and 15, respectively. The total ionic strength of the media limited bud induction, but only when a disequilibrium of these ratios was produced.

CCDC 879927: Experimental Crystal Structure Determination

2013

Related Article: Albert Escuer, Gina Vlahopoulou, Francesc Lloret, Franz A. Mautner|2014|Eur.J.Inorg.Chem.||83|doi:10.1002/ejic.201300910

Nitroglycerin Hits the Nerve

2008

Organic nitrates are still widely used for the treatment of acute and chronic angina and congestive heart failure. When given acutely, their effectiveness is indisputable; in contrast, their long-term efficacy is limited because of serious side effects such as the development of tolerance and

Chronic Therapy with Isosorbide-5-Mononitrate Causes Endothelial Dysfunction and Oxidative Stress – Improvement by Endothelin-Receptor Blocker (Bosen…

2012

CCDC 158965: Experimental Crystal Structure Determination

2001

Related Article: H.Grove, J.Sletten, M.Julve, F.Lloret, J.Cano|2001|J.Chem.Soc.,Dalton Trans.||259|doi:10.1039/b007983i

CCDC 779277: Experimental Crystal Structure Determination

2011

Related Article: M.Duniz, J.Pasan, O.Fabelo, L.Canadillas-Delgado, F.Lloret, M.Julve, C.Ruiz-Perez|2010|New J.Chem.|34|2515|doi:10.1039/c0nj00436g

CCDC 205508: Experimental Crystal Structure Determination

2004

Related Article: K.I.Nattinen, K.Rissanen|2003|Inorg.Chem.|42|5126|doi:10.1021/ic034246r

CCDC 208912: Experimental Crystal Structure Determination

2006

Related Article: S.K.Chawla, M.Arora, K.Nattinen, K.Rissanen|2006|Mendeleev Commun.||88|doi:10.1070/MC2006v016n02ABEH002202

The NreA Protein Functions as a Nitrate Receptor in the Staphylococcal Nitrate Regulation System

2013

Staphylococci are able to use nitrate as an alternative electron acceptor during anaerobic respiration. The regulation of energy metabolism is dependent on the presence of oxygen and nitrate. Under anaerobic conditions, staphylococci employ the nitrate regulatory element (Nre) for transcriptional activation of genes involved in reduction and transport of nitrate and nitrite. Of the three proteins that constitute the Nre system, NreB has been characterized as an oxygen sensor kinase and NreC has been characterized as its cognate response regulator. Here, we present structural and functional data that establish NreA as a new type of nitrate receptor. The structure of NreA with bound nitrate w…