A study to examine the short-term effect of nitrate and organic carbon addition on denitrification activity was carried out on sediments from a mangrove ecosystem prone to anthropogenic activities (Divar, Goa, India). Laboratory microcosms were prepared using sediment sectioned at every 2-cm-depth interval from the surface to 10 cm. The incubations were subjected to varying nitrate amendments a...

this study was aimed to assess of priming effects on soluble proteins and antioxidant enzymes of as a nigella sativa medicinal plant under different levels of salinity and drought. two greenhouse factorial experiments with three replicated randomized complete block design were conducted.treatments included five levels of priming (potassium nitrate 1% and salicylic acid 0.2 mm in 6 hours, potass...

We recently reported the first multiple oxygen isotope composition of nitrate (NO3 ̄) in ice cores. Post-depositional photolysis and volatilization may alter the isotopic signatures of snowpack nitrate. Therefore, the precise assessment of the geochemical/atmospheric significance of O-isotopic signatures requires information on the relative rates of photolysis (λ > 300 nm) of NO3, NO2O ̄ and NO2O...

A family outbreak of methaemoglobinaemia following ingestion of sausages made using 'saltpetre' is reported. Saltpetre is a generic term for several potassium and sodium based compounds. On this occasion imprecise ordering led to the use of sodium nitrite rather than the usual potassium nitrate, with extremely serious consequences.

Perennial grasses undergo compensatory growth after defoliation. Nitrate is the main nitrogen source for of perennial ryegrass and plays a significant role in plant resistance to stress. The aim study was understand physiological mechanism response defoliation stress under different nitrate supplies explore possible ways alleviate We performed pot experiments where 12-week-old plants grown low ...

milk thistle (silybum marianum l. gaertner) is an annual or biannual plant of the asteraceae family. this species is important not only as a medicinal plant traditionally, but also as an endemic plant to protect vegetative and natural resources in iran. this experiment was carried out to find the most effective treatments to break milk thistle seed dormancy and improve its cultivation in vast s...