Tardigrades are microscopic aquatic animals with remarkable abilities to withstand harsh physical conditions such as dehydration or exposure to harmful highly energetic radiation. The mechanisms responsible for such robustness are presently little known, but protection against oxidative stresses is thought to play a role. Despite the fact that many tardigrade species are variously pigmented, sc...

The anthocyanin composition was analysed in strawberry fruits from five different cultivars (cv. Eris, Oso Grande, Carisma, Tudnew and Camarosa). Twenty-five defined anthocyanin pigments were detected, most of them containing Pelargonidin (Pg) as aglycone; some cyanidin (Cy) derivatives were also found. Glucose and rutinose were the usual substituting sugars, although arabinose and rhamnose tat...

transgenic and non transgenic nicotiana tabacum l (cultivar wisconsin) containing ri t-dna were treated with 0, 0.2 and 0.4 mgl-1 ga3 in murashig and skoog medium. some physiological parameters including shoot length, leaf area, number of auxiliary bud, fresh and dry weight, number and length of trichomes were measured. shoot length, fresh weight and dry weight were increased but number of tric...

In recent years pigments have been identified in human nutrition to have a positive effect on human health and reduction to oxidative stress exposure. In the media it has become common wisdom that colourful food is naturally better to consume for humans and animals. Now recently it has been shown that pigments aid microbial species as well, and conversely these microbial pigments may result in ...

The present study investigated the effect of arsenic (As) on photosynthesis and other selected physiological parameters in two ferns. ferns (Pteris cretica 'Albo-lineata' 'Parkerii') subjected to As doses 100 250 mg kg-1 for three months, showed different accumulation, which was higher Albo-lineata. Overall, obtained results indicated significant differences between studied individual effects g...