BACKGROUND AND AIMS The release of hydrogen cyanide (HCN) from injured plant tissue affects multiple ecological interactions. Plant-derived HCN can act as a defence against herbivores and also plays an important role in plant-pathogen interactions. Crucial for activity as a feeding deterrent is the amount of HCN generated per unit time, referred to as cyanogenic capacity (HCNc). Strong intraspe...

Solutions of KCN in 0.1 mol/liter NaOH, stored for six months at 4 degrees C, were unchanged as determined by silver titration and color development with pyridine-pyrazalone reagent. At room temperature the cyanide concentration of such solutions decreased by 0.079% per day (half life = 880 days) and the extent of color development changed in direct proportion to the change in silver titer. Rub...

Using one-dimensional thermochemical/photochemical kinetics and transport models, we examine the chemistry of nitrogen-bearing species in the Jovian troposphere in an attempt to explain the low observational upper limit for HCN. We track the dominant mechanisms for interconversion of N2-NH3 and HCN-NH3 in the deep, high-temperature troposphere and predict the rate-limiting step for the quenchin...

Abstract Many agricultural researches have been performed to improve soil productivity. Nitrogen (N) and Phosphorus (P) are essential elements which are utilized by the plants in large amounts. Phosphorus can be provided by applying chemical fertilizers. Microorganisms convert insoluble phosphate to the soluble form and some bacteria such as rhizobacteria play an important role in this proces...

• Formaldehyde present in exhaust gas can react with NH 3 to produce HCN. This reaction was studied by operando DRIFTS on V 2 O 5 /WO -TiO and TiO at 300 °C. formed adsorbed cyanide species, phase HCN detected. Formic acid reacted but did not form species or production does involve formate Hydrogen (HCN) is a highly poisonous that through the between formaldehyde ammonia (NH ) exhaust. While th...

Although high levels of KCN (53 micromoles per gram fresh weight of seed, corresponding to 3.2 millimolar) failed to block germination of lettuce seeds incubated in covered Petri dishes, the same levels totally blocked germination in sealed dishes. Inhibition was reversed by removing the seal. Placement of KCN remote from seeds also blocked germination in closed systems. Cyanide effectiveness w...

Garri is a popular and commonly consumed staple food in Nigeria especially among the Eastern Southern Nigerians. It nutritionally inadequate with main nutrient as carbohydrate. We examined potential of yellow cassava fortification soybean production Nutrient dense garri (NDG) to improve quality garri. from three geographical locations serve control. The Hydrogen cyanide (HCN), pH, carotene cont...

One of the major concerns in prebiotic chemistry is the formation and destruction routes of prebiotic compounds in space. As detected for a long time, hydrogen cyanide (HCN) has been suggested to be a feedstock molecule at the origin of life driving easy oligomerization, in particular to form adenine. This may focus on its first oligomers because its dimer cyanomethanimine was recently observed...

Easily accessible, primitive chemical structures produced by self-assembly of hydrophobic substances into oil droplets may result in self-moving agents able to sense their environment and move to avoid equilibrium. These structures would constitute very primitive examples of life on the Earth, even more primitive than simple bilayer vesicle structures. A few examples of simple chemical systems ...