OKUDA, Takashi; National Institute of Agrobiological Sciences: Anhydrobiosis in an African chironomid Life and death are mutually exclusive states. But some organisms showing no sign of living due to complete desiccation are nevertheless able to resume active life after rehydration. Organisms in this peculiar biological state are highly resistant to dehydration in a condition referred […]

CLEGG, J.S.; University of California, Davis: Adaptations Underlying Desiccation Tolerance in the Animal Extremophile, Artemia Encysted embryos of the primitive crustacean, Artemia, can be considered as extremophiles of the animal kingdom based on their ability to exist and thrive in the face of a wide variety of severe stresses. Those abilities, essential to the survival […]

BARTELS, Dorothea*; RAMANJULU, Ramtin; M�LLER, Kai; FISCHER, Eberhard; BORSCH, Thomas; University of Bonn: The evolution of desiccation tolerance: genomic aspects The Scrophulariaceae are one of the most diverse paklnt families and has been shown to be polyphyletic. Several Scrophulariaceae which belong to the genera Craterostigma, Lindernia and its allies are poikilohydric and are therefore of […]

POTTS, Malcolm; Virginia Tech, Blacksburg: The Desiccome: Humble Beginnings The loss of water from cells is a stress that was likely imposed very early in evolution. An understanding of the sensitivity or tolerance of cells to depletion of intracellular water is relevant to the study of quiescence, longevity and aging, because one consequence of air-drying […]

WALTERS, C.*; HILL, L.M.; WHEELER, L.M.; USDA-ARS; USDA-ARS; USDA-ARS: Dying while Dry: Kinetics and Mechanisms of Deterioration in Desiccated Organisms Persistence of anhydrous organisms in nature is dependent on how long they remain viable in dry environments. Longevity is determined by interactions of humidity, temperature, and unknown cellular factors that affect the propensity for damaging […]

HOEKSTRA, F.A.; Wageningen University: Differential longevities in desiccated anhydrobiotic plant systems Desiccation tolerance is a wide-spread phenomenon in the plant kingdom, particularly in small propagules lacking an own root or rhizome system, such as seeds, pollen, spores of spore plants, and whole Bryophytes, but rare in whole, vascular plants. However, longevities in the desiccated state […]

MISHLER, Brent; Univ. of California, Berkeley: The evolution and ecology of desiccation tolerance in mosses Bryophytes and tracheophytes adopted very different approaches to being a land plant; in general the bryophytes differ in most ways in their biology, ecology, and evolution from tracheophytes. One major difference is poikilohydry (the rapid equilibration of the plant’s water […]

ALPERT, P; Univ. of Massachusetts – Amherst: The constraints of tolerance: why are desiccation-tolerant organisms small and rare? The ability to tolerate desiccation is common in terrestrial microbes, bryophytes, and lichens but rare in vascular plants. No desiccation-tolerant plant grows more than 3 m tall, and over 75% of the vascular species are associated with […]

TREONIS, A.M.*; WALL, D.H.; Creighton University; Colorado State University: Soil nematodes and desiccation survival in the extreme arid environment of the Antarctic Dry Valleys Soil nematodes are capable of employing an anhydrobiotic survival strategy in response to adverse environmental conditions. The McMurdo Dry Valleys of Antarctica represent a unique environment for the study of anhydrobiosis […]

OLIVER, Melvin J.; USDA-ARS: Desiccation tolerance in bryophytes; is tolerance the primitive condition in plants? The majority of desiccation-tolerant plants are found in the less complex clades that constitute the algae, lichens and bryophytes. However, within the larger and more complex groups of vascular land plants there are some 120-130 species that exhibit some degree […]