In this paper we begin our study of factors controlling Na* and K* uptake in the halophyte Spergularia marina (L.) Griseb., with emphasis on plants growing at moderate salinity (0.2x sea water). The involvement of transpiration was considered first because of its potential to account for much or all of the transport of ions, and particularly of Na*, to the shoot under these growth conditions. T...

The mechanism by which plants cope with salt stress remains poorly understood. The goal of this study is to systematically investigate the contribution and distribution of inorganic ions and organic compounds to the osmotic adjustment (OA) in the halophyte species Halostachys caspica. The results indicate that 100-200 mM NaCl is optimal for plant growth; the water content and degree of succulen...

The plants are always subjected to various environmental stress, because of plant sessile growth. qRT-PCR is a sensitive and reliable technology, and the normalization of target gene expression with suitable reference genes is very important for obtaining accurate data. Halostachys caspica is an extremely salt-tolerant halophyte belonging to Chenopodiaceae and a good candidate to explore the st...

Cesium (Cs) is a soil contaminant and toxic to the ecosystem, especially plant species. In this study, we have assessed potential of halophyte Sesuvium portulacastrum for its Cs tolerance accumulation. Thirty days old S. plants were subjected different concentrations (0, 5, 10, 25, 50, 150 mg·L−1 Cs) using cesium chloride. The biomass photosynthetic pigments not affected up 25 treatment while s...

Phytoremediation is an efficient technique for the reclamation of salt-affected soils by growing plants. The present study aims to evaluate intercropping halophyte Atriplex nummularia Lindl. with naturally occurring species (Mimosa caesalpiniifolia Benth, Leucaena leucocephala (Lam.) de Wit and Azadirachta indica A. Juss.) adapted semiarid regions as a management capable enhancing phytoremediat...

Soil contamination by toxic trace metal elements, like barium (Ba), may stimulate various undesirable changes in the metabolic activity of plants. The plant responses are fast and with, direct or indirect, generation reactive oxygen species (ROS). To cope with stress imposed ROS production, plants developed a dual cellular system composed enzymatic non-enzymatic players that convert ROS, their ...

dna methylation as epigenetic mark plays a key role in normal differential and developmental processes as well as in dynamic gene regulation at the genomic level. to assess dna methylation pattern in different developmental stages of aeluropus littoralis, methylation sensitive amplified polymorphism (msap) was used. methylation and demethylation status at the ccgg recognition site were tracked ...

The facultative halophyte Mesembryanthemum crystallinum responds to osmotic stress by switching from C3 photosynthesis to Crassulacean acid metabolism (CAM). This shift to CAM involves the stress-initiated up-regulation of mRNAs encoding CAM enzymes. The capability of the plants to induce a key CAM enzyme, phosphoenolpyruvate carboxylase, is influenced by plant age, and it has been suggested th...

Heavy metals are common pollutants of the coastal saline area and Salicornia brachiata an extreme halophyte is frequently exposed to various abiotic stresses including heavy metals. The SbMT-2 gene was cloned and transformed to tobacco for the functional validation. Transgenic tobacco lines (L2, L4, L6 and L13) showed significantly enhanced salt (NaCl), osmotic (PEG) and metals (Zn++, Cu++ and ...