Results 251 to 260 of about 23,904 (294)

Inorganic ions in cold-hardiness

Cryobiology, 2004
Cold exposure and freezing may affect ion distribution in several ways and reduce physiologically important ionic gradients. Both freeze-avoiding and freeze-tolerant organisms have developed mechanisms to handle this stress. Supercooled insects seem to be able to maintain their ionic gradients even at temperatures far below zero.
Karl Erik, Zachariassen, Erlend, Kristiansen, Sindre Andre, Pedersen   +2 more
openaire   +2 more sources

Conifer Cold Hardiness

Plant Science, 2001
List of contributors. Preface. Section I: Ecology and Ecophysiology. Frost Resistance and the Distribution of Conifers P. Bannister, G. Neuner. Genecology and Gene Resource Management Strategies for Conifer Cold Hardiness S.N. Aitken, M. Hannerz. Section II: Acclimation and Deacclimation.
openaire   +2 more sources

Scorpion Cold Hardiness

Physiological Zoology, 1985
The scorpion Centruroides vittatus is periodically exposed to freezing temperatures in its natural habitat. It survives such stress by employing physiological mechanisms characteristic of the freeze-tolerant survival strategy used by some insects.
Donald H. Whitmore, Roberto Gonzalez, John G. Baust   +2 more
openaire   +1 more source

Cold hardiness in the scorpion, Paruroctonus aquilonalis

Cryobiology, 1976
Abstract Lower lethal temperatures represented by supercooling points were measured for the scorpion Paruroctonus aquilonalis (Stahnke) following exposure to laboratory regimes of photoperiod and temperature, as well as to ambient conditions. Analyses for the presence of glycerol and sorbitol in hemolymph, and of body water content were also ...
W A, Riddle, S, Pugach
openaire   +2 more sources

Understanding plant cold hardiness: an opinion

Physiologia Plantarum, 2012
How plants adapt to freezing temperatures and acclimate to survive the formation of ice within their tissues has been a subject of study for botanists and plant scientists since the latter part of the 19th century. In recent years, there has been an explosion of information on this topic and molecular biology has provided new and exciting opportunities
Lawrence V, Gusta, Michael, Wisniewski
openaire   +2 more sources

Physiology of Cold Hardiness in Earthworms

Comparative Biochemistry and Physiology Part A: Physiology, 1996
Abstract Physiological, biochemical and behavioral mechanisms involved in the winter survival of earthworms and earthworm cocoons are reviewed. Overwintering strategies of cold hardy invertebrates are commonly divided into two groups. In freeze-avoiding animals, ice formation in the tissues is lethal and winter survival is dependent on prolonged and ...
Holmstrup, M.; id_orcid 0000-0001-8395-6582, Zachariassen, K. E.   +1 more
openaire   +3 more sources

Cold Hardiness of Saltgrass Accessions

Crop Science, 2003
Freezing tolerance is an environmental adaptation that significantly influences plant geographical distribution. Since differences in winter survival among saltgrass ecotypes have been observed in the field at Fort Collins, CO, the objective of this study was to determine the relative freezing tolerance, seasonal changes in the freezing tolerance, and ...
M. A. Shahba, Y. L. Qian, H. G. Hughes, D. Christensen, A. J. Koski   +4 more
openaire   +1 more source

Cold Hardiness and Seed Shape in Maize

Nature, 1949
AT least one mid-Western seed company has asserted that 'round-grade' dent corn (maize) seeds withstand more than 'flat-grade' seeds the cold weather after early spring sowings.
openaire   +2 more sources

COLD HARDINESS IN HEXAPLOID TRITICALE

Canadian Journal of Plant Science, 1985
The excellent cold hardiness of rye (Secale cereale L.) makes it a potential source of genetic variability for the improvement of this character in related species. However, when rye is combined with common wheat (Triticum aestivum L.) to produce octaploid triticale (X Triticosecale Wittmack, ABDR genomes), the superior rye cold hardiness is not ...
A. E. LIMIN, J. DVORAK, D. B. FOWLER
openaire   +1 more source

The Analysis of Cold Hardiness Experiments

2001
Scientific studies generally belong to one of three categories: designed experiments, sample surveys, and observational studies. Most research on the cold hardiness of conifers is based on designed experiments where the scientist wishes to compare two or more treatments.
Michèle Bernier-Cardou, Francine J. Bigras   +1 more
openaire   +1 more source