PROTOPLASMA

Abstract The objective of this work was to test a new method for Al and Pb histolocalization using Chrome Azurol S (CAS) and Pyrogallol Red (PGR), respectively, using roots from Typha domingensis Pers. plants grown in iron mining tailings. For both CAS and PGR, we tested two solvents (distilled water pH 6.7 and 100 mM phosphate buffer pH 5.0), two concentrations (0.1% and 0.5%, m V − 1 ), and thr…

Abstract Sieve elements (SEs) represent one of the most specialized cell types in plants, yet several fundamental aspects of their structure, regulation, and physiological integration remain incompletely understood. Despite recent advances that refined our understanding of SE function, persistent questions and controversies remain concerning key aspects of SE biology, such as the disputed presenc…

Osmotic stress, driven by factors such as soil drying and salinization, poses a significant challenge to plant growth and metabolism. Melatonin has shown promising results in alleviating abiotic stress by inducing antioxidant defenses in several species, which is particularly interesting when considering medicinal plants. Thus, this study investigates the physiological and biochemical responses o…