Results 261 to 270 of about 23,904 (294)

Cold hardiness in invertebrate poikilotherms

Comparative Biochemistry and Physiology Part A: Physiology, 1982
Abstract 1. 1. A selective review is made of the information on cold hardiness in the following taxonomic groups: Protozoa, Platyhelminthes, Rhynchocoela, Rotifera, Nematoda, Mollusca, Annelida, Tardigrada, micro-Arthropoda (Collembola & Acari) and Arthropoda. 2. 2.
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Principles of Insect Cold-Hardiness

Annual Review of Entomology, 1961
Cold is a relative term which for present purposes will be considered to encompass temperatures too low to support normal development of the in­ sects concerned. The effects of cold on insects may be manifold, but a pri­ mary distinction must be made on the hasis of whether freezing does or does not result.
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Mutants Deficient in Cold Hardiness

2002
Mutations that affect cold hardiness, if their effects are specific, identify proteins that help to protect plant cells against chilling or freezing. This offers an approach to cold hardiness complementary to the study of low temperature-induced genes and the cold signal transduction pathway. The approaches have different limitations.
Gareth J. Warren, Glenn J. Thorlby, Irene Bramke   +2 more
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Absolute Humidity as a Factor in Insect Cold Hardiness with a Note on the Effect of Nutrition on Cold Hardiness

Annals of the Entomological Society of America, 1929
In both eggs and larvae of Hemerocampa lencostigma Smith and Abbot, cold hardiness can be expressed by the equation T1 = K1/Ha where T1 = survival temperature in degrees centigrade (or cold hardiness to the intensity factor). Ha = absolute humidity in millimeters of vapor pressure.
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Cold Hardiness in Terrestrial Arthropods

1995
During the last few decades a vast number of articles have been published within the field of cold hardiness in insects and other terrestrial arthropods. The intriguing question as to how poikilotherm animals are able to survive temperatures far below the melting points of their haemolymph has puzzled many biologists.
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Presoaking and cold hardiness in maize

Plant and Soil, 1949
Seed of four inbred sweet corns and one dent hybrid corn were presoaked in tap water prior to receiving 60°F and 40°F treatment. Pre-soaking did not alter their behaviour to cold treatment, although on transference to the warmth, germination was slightly more rapid after pre-soaking.
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Comparative Invertebrate Cold Hardiness

1991
Insects are the most thoroughly studied freeze-tolerant organisms. There are, however, several other groups of animals that can survive the presence of ice in their extracellular fluids. These include some lower vertebrates, such as frogs, turtles, and snakes and intertidal invertebrates.
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INVESTIGATION OF WINTER HARDINESS AND COLD HARDINESS IN APPLE PROGENIES

Acta Horticulturae, 2000
B. Gelvonauskis, P. Duchovskis, G. Bandaraviciene   +2 more
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Cold-hardy plants

Science, 1998
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Cold Hardiness in a Temperate Cryptostigmatid Mite

Oikos, 1980
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