†Unitat d’Ecofisiologia CSIC-CEAB-CREAF, CREAF (Center for Ecological Research and Forestry Applications), Universitat Autònoma de Barcelona, Edifici C, 08193 Bellaterra, Spain ‡Department of Forest Ecology, Latokartanonkaari 7, PO Box 27, 00014 University of Helsinki, Finland §Departament de Biologia Vegetal, Universitat de Barcelona, Facultat de Biologia, Avinguda Diagonal 645, 08028 Barcelon...

The present investigation envisages the in vivo measured laser induced chlorophyll florescence spectra of EMS (Ethyl methane sulphonate) treated safflower leaves. Seeds of safflower were treated with 0.5% EMS for three treatment durations (3h, 5h and 7h) to raise the populations. The effect of EMS treatment on chlorophyll content in the leaves was assessed using laser induced chlorophyll fluore...

Nicotiana tabacum was grown with a C 0 2-content in the atm osphere of 350 ppm and 700 ppm. A fter three weeks of growth in the respective atm osphere we were able to show that chloroplasts from plants grown under 700 ppm C 0 2 exhibited an 18% higher pho to ­ system I-m ediated electron transport activity. Furtherm ore, we were able to show that in plants grown under the higher C Ö 2-concentra...

Carotenoids, anthocyanins, and chlorophylls are used as natural food colourants in the food industry. Microencapsulation is a technology that is used for the protection, stabilization, and the slow release of core materials. There are several techniques and wall materials that are available for microencapsulation of natural food colourants to overcome their instability, solubility, and handling...

The superfamily of light-harvesting complex (LHC) proteins is comprised of proteins with diverse functions in light-harvesting and photoprotection. LHC proteins bind chlorophyll (Chl) and carotenoids and include a family of LHCs that bind Chl a and c. Dinophytes (dinoflagellates) are predominantly Chl c binding algal taxa, bind peridinin or fucoxanthin as the primary carotenoid, and can possess...

Background:  Stresses such as heat shock, starvation, or osmotic is essential to lead isolated microspores towards embryogenesis. Despite the effectiveness of stresses in embryogenesis, they exert adverse effects on metabolism and growth of the regenerated plants. Objectives: The effects of heat shock and 2,4-D treatment on total protein content of treated microspores, morphological and physiol...

The present study was conducted to evaluate the ameliorating effect of 5-aminolevulinic acid (ALA) on physiological and biochemical changes of induced NaCl-salinity stress on in vitro shoot and callus cultured of red-fleshed apple. Shoot and callus segments of the red-flesh apple of Local Iranian genotype were cultured on MS medium containing different levels of NaCl (0, 30, 60 and 90 mM) and A...

A study to understand the biological effects of samples prepared with lead and the effects of lead were conducted on Lemna minor L. and Spirodela polyrhiza (L.) Schleid. This study was intended to test the hypothesis that nutrient enrichment (P, NO(3) (-)-N and SO(4) (2-)) enhances the metal tolerance of floating macrophytes. The plants were exposed to Pb concentrations 0, 1, 5, 10, 25, and 50 ...