In 1985–2002 thirteen weeds resistant to atrazine were selected by a repeated application of triazine herbicides on arable land, in orchards, non-agricultural land and at railways in the Czech Republic. Recently Digitaria sanguinalis biotypes resistant to atrazine have been found at three railway junctions. Long-lasting application of the active ingredient imazapyr at railways caused selection ...

A possible influence of low growth temperature on the photochemical activity of isolated mesophyll chloroplasts was studied in three biotypes of kochia [Kochia scoparia (L.) Schrad.] that showed either double resistance to both atrazine and acetolactate synthase (ALS) inhibitors (Bubny biotype), resistance to ALS inhibitors but not to atrazine (Jihlava biotype), or sensitivity to both types of ...

Our research studies data suggest that, there were significant variations in the observed biochemical parameters. The level of TBARS in ethanol intoxicated rats increased two fold when compared with the control animals. The levels of GSH, SOD and CAT decreased significantly in the ethanol intoxicated rats. The level of GPx was increased in the ethanol intoxicated rats. The value of vitamin E in...

During an investigation of Trentepohliales (Ulvophyceae) from tropical areas in China, four species of the genus Phycopeltis were identified: Phycopeltis aurea, P. epiphyton, P. flabellata and P. prostrata. The morphological characteristics of both young and adult thalli were observed and compared. Three species (P. flabellata, P. aurea and P. epiphyton) shared a symmetrical development with di...

Certain plants accumulate glycinebetaine, a type of osmoprotectant, in response to salinity. Glycinebetaine is synthesized in these plants via the two-step oxidation of choline, and the first step is catalysed by choline mono-oxygenase (CMO; EC 1.14.15.7). Cloned by RT-PCR and 3'-RACE, the cDNA of Atriplex prostrata CMO (ApCMO) is 1669 bp in length and encodes a full-length protein of 438 amino...