l h e unicellular green alga Dunaliella bardawil exhibits typical responses to excessive light when starved for sulfate under normal light (60 p E m-’s-’) but not under low light (14 p E m-’ s-’). Algae were analyzed during severa1 days of sulfate starvation for nonphotochemical quenching of chlorophyll fluorescence in the absence or presence of the uncouplers SF-6847 (SF) or carbonyl cyanide p...

Although we always associate the oceans to blue color, other colors such as green, brown, and even yellowish can be observed. The diverse color palette presented in water bodies is due presence of colored components that interact with light water. Those are, for instance, (1) itself, which gives a oceans; (2) very tiny plants give greenish water; (3) dissolved compounds turns into brown-yellowi...

All the mouse embryos above belong to the same litter but half of them have inherited a transgene from their father (the green fluorescent adult mouse on the right) that causes them to glow yellowish green under fluorescent light. In these transgenic mice, the enhanced green fluorescent protein (EGFP) is expressed in all cells except hair and erythrocytes. The fact that there are equal numbers ...

BACKGROUND AND AIMS The movement of water through mycorrhizal fungal tissues and between the fungus and roots is little understood. It has been demonstrated that arbuscular mycorrhizal (AM) symbiosis regulates root hydraulic properties, including root hydraulic conductivity. However, it is not clear whether this effect is due to a regulation of root aquaporins (cell-to-cell pathway) or to enhan...

By means of asymmetric color matching, the effects of steady-state chromatic adaptation on the color appearance of briefly presented chromatic flashes were investigated. The adapting and test lights were of equal luminance (35 cd/m2) and differed from the standard grey adapting light either along the L-2M (red and green), or along the S-(L+M) (yellow and violet) line. The red (green) adapting l...

It has been reported in a preliminary communication (1) that under certain conditions, at room temperature, perchloric acid converts tryptophan to a yellowish green fluorescent compound. Fluorescence was found to be particularly strong in ultraviolet light. It has now been found that a small amount of bichromate very considerably increases the sensitivity of this reaction and that the test may ...

Polycarpaea corymbosa (L) Lam, is a weed which belongs to Caryophyllaceae family is seen throughout India. It is distributed in tropical Asia and Australia. It is quite common in Gujarat is waste lands and in cultivated fields. It is a small, erect annual herb. Simple or branched woody at base. Stem and branches slender and faintly terete. Pale green in colour and pubescent in younger parts. Le...

this experiment was conducted to find the best harvesting time for two olive cultivars dezful and zard in fars province, iran. fruits were harvested in 10 days intervals from 11 september and their quantitative and qualitative characteristics were measured. results indicated that for canning olive, the best harvesting time for dezful cultivar was 23-31 october. at this time, fruits were in yell...