Salinity Tolerance of Annual Killifish Embryos and Associated Cellular Adaptations

Extreme anoxia tolerance in embryos of the annual killifish Austrofundulus limnaeus: insights from a metabolomics analysis.

The annual killifish Austrofundulus limnaeus survives in ephemeral pond habitats by producing drought-tolerant diapausing embryos. These embryos probably experience oxygen deprivation as part of their normal developmental environment. We assessed the anoxia tolerance of A. limnaeus embryos across the duration of embryonic development. Embryos develop a substantial tolerance to anoxia during ear...

Alternative developmental pathways associated with diapause regulated by temperature and maternal influences in embryos of the annual killifish Austrofundulus limnaeus.

Embryos of the annual killifish Austrofundulus limnaeus enter a state of developmental arrest termed diapause as part of their normal developmental program. Diapause can occur at two distinct developmental stages in this species, termed diapause II and III. When incubated at 25°C, most embryos enter diapause II, whereas a small percentage of 'escape' embryos develop continuously past diapause I...

The Effects of Salinity on Cellular and Biochemical Processes Associated with Salt Tolerance in Tropical Plants

Tropical plant species exhibit a high degree of variability in salt tolerance, probably as a result of evolution in diverse ecosystems, intensive year-round selection pressures, and high temperatures. Salinity may cause major problems for agricultural production in semiarid tropics and areas subjected to seawater intrusion, and is also a concern in any irrigated region subjected to high tempera...

Investigating the Effects of Pod Elimination on Salinity Tolerance in Annual Medic (Medicago scutellata L.)

In most southern provinces of Iran, Soil Salinity is a growing problem particularly in the irrigated agricultural areas and has been found to reduce crop yields. In order to investigate the role of pod removal in seed germination, seedling growth and antioxidant enzymes activity in annual medics (Medicago scutella L.) under salinity stress conditions, a factorial experiment was conducted at Col...

Anoxia Tolerance During Vertebrate Development - Insights from Studies on the Annual Killifish Austrofundulus limnaeus