Hydrologic alterations of river systems in western North America over the past century have increased soil salinity, contributing to the establishment and spread of an introduced halophytic species, Tamarix ramosissima (Ledeb.). The physiological responses of Tamarix ramosissima to salinity stress are incompletely known. To assess the salinity tolerance of this species, we measured several whol...

Stable isotope studies (δ2H and δ18O) of water within plants are providing new information on sources, competitive interactions use patterns under natural conditions. This is based the assumption that there no fractionation at time uptake or during its transport trees. However, previous have found does occur in taken up through roots halophytic xerophytic plants. It unclear how widespread such ...

The continued growth in the human population of world will generate an increased demand for food that be hard to meet with existing agricultural systems, as equivalent increase land is not available. Predicted changes climate likely exacerbate situation by increasing sea levels and salinisation coastal areas. Although most our crop plants are sensitive salinity, salt-tolerant plants, halophytes...

Cortesia is a halophytic and monotypic genus endemic to Argentina that belongs Ehretiaceae (Boraginales). It morphologically distinct from the other members of family in having cuneate leaves with 3-dentate apex, an involucrum fused bracts, spatulate calyx lobes, white drupes two-parted endocarp. Its single species, cuneifolia, here treated illustrated based on study numerous herbarium collecti...

The effects of salt stress on growth and some physiological parameters of halophytic plant, Leptochloa fusca L. Kunth, were investigated. The seedlings were irrigated with half-strength Hoagland solution and then treated with different concentrations of NaCl (0, 100, 300, 500 and 700 mM) for 15 days. The fresh and dry weights of both root and shoot were unchanged at 100 mM NaCl and decreased at...

When plants experience elevated concentrations of NaCl only a few species survive and set seeds. However, survival specialists – termed halophytes or, generally, extremophiles – can be found in essentially every plant family, seemingly identifying genes determining the halophytic lifestyle as a legacy of all plants. We have indicated the importance of transcription control leading to ‘copy numb...

The eastern part of the Pamir Mountains, located in Central Asia, is characterized by great climatic continentality and aridity. Wetlands developed in this hostile region are restricted to spring areas, terraces of shallow lakes or floodplains along rivers, and provide diversified ecosystem services e.g. as water reservoirs, refugia for rare species and pastures for domestic cattle. These ecosy...

The Pre-Andean area of Chile exhibits saline soils of volcanic origin naturally contaminated with arsenic (As), and we hypothesise that revegetation with resistant species may be a valid alternative for soil management in this area. Thus, the xerophytic and halophytic shrubs Atriplex halimus and Atriplex atacamensis were cultivated in containers for 90 days in Pre-Andean soil, As-soil, (111±19 ...