The proteomic response of cheliped myofibril tissue in the eurythermal porcelain crab Petrolisthes cinctipes to heat shock following acclimation to daily temperature fluctuations

2015 ◽  
Vol 218 (3) ◽  
pp. 388-403 ◽  
Author(s):  
M. A. Garland ◽  
J. H. Stillman ◽  
L. Tomanek
Keyword(s):  
Heat Shock ◽  
Temperature Fluctuations ◽  
Daily Temperature ◽  
Proteomic Response ◽  
Petrolisthes Cinctipes ◽  
Porcelain Crab ◽  
Daily Temperature Fluctuations

scholarly journals Response of Development and Body Mass to Daily Temperature Fluctuations: a Study on Tribolium castaneum

2016 ◽  
Vol 43 (3) ◽  
pp. 356-367 ◽  
Author(s):  
P. Kramarz ◽  
D. Małek ◽  
K. Naumiec ◽  
K. Zając ◽  
S. M. Drobniak
Keyword(s):  
Body Mass ◽  
Tribolium Castaneum ◽  
Temperature Fluctuations ◽  
Daily Temperature ◽  
Daily Temperature Fluctuations

scholarly journals Multiple paternity in the intertidal zone porcelain crab Petrolisthes cinctipes Randall, 1840 (Decapoda: Anomura: Porcellanidae) is a life-history strategy that increases fitness during heat stress

2020 ◽  
Vol 40 (6) ◽  
pp. 684-691
Author(s):  
Thomas Yockachonis ◽  
C Seabird McKeon ◽  
Amanda M Windsor ◽  
Jonathon H Stillman
Keyword(s):  
Heat Shock ◽  
Intertidal Zone ◽  
Multiple Paternity ◽  
Life History Strategy ◽  
Relative Fitness ◽  
Ambient Conditions ◽  
Embryo Survival ◽  
Hatching Percentage ◽  
Petrolisthes Cinctipes ◽  
Porcelain Crab

Abstract Multiple paternity is widespread across animal and plant taxa and can increase genetic diversity and enhance fitness, especially in unpredictable environments. A prior study of the intertidal zone porcelain crab, Petrolisthes cinctipes (Randall, 1840), found that most females carried polyandrous broods. We tested the hypothesis that multiple paternity in P. cinctipes enhances fitness through increased average brood tolerance to temperature stress. Embryonic survival of split broods (N = 27) was measured under ambient conditions and following a single one-hour heat shock at 30 °C. Two microsatellite loci were used to genotype embryos and mothers in order to distinguish multiple from single paternity in each brood. Mean overall hatching percentage did not differ between singly and multiply sired broods; however, when exposed to a heat-shock, single-sired broods experienced 11% lower hatching success. Though relative fitness was higher in single-sired broods under non-stressful conditions, extrapolation of our results to conditions where temperatures are at least 30 °C (present-day extremes for the California coast) for > 2 days of the embryonic brood period, multiply sired broods have a relative fitness that is approximately 24 times higher after 15 generations. Maternal quality (size) and the timing of the heat shock relative to developmental timing also influence the brood response to heat shock. Our results suggest that multiple paternity reduces embryo survival variance between ambient and heat-shock conditions and that polyandrous behavior could be an advantage for P. cinctipes in the thermally variable high-intertidal zone. We conclude that multiple paternity is an important strategy for increasing fitness by genetic diversification in organisms that experience severe and unpredictable levels of environmental stress.

The action of temperature fluctuations on hard seeds of subterranean clover

1971 ◽  
Vol 11 (51) ◽  
pp. 440 ◽  
Author(s):  
MW Hagon
Keyword(s):  
No Reduction ◽  
Subterranean Clover ◽  
Trifolium Subterraneum ◽  
Temperature Fluctuations ◽  
Specific Region ◽  
Daily Temperature ◽  
Laboratory Conditions ◽  
Hard Seeds ◽  
Cycle Lengths ◽  
Daily Temperature Fluctuations

Burrs of three cultivars of subterranean clover (Trifolium subterraneum) were placed in soil in a cold frame at Canberra so that they were subjected to daily temperature fluctuations of the order of 20-54�C. After three months and eight months the proportion of permeable seeds was significantly increased. Such seeds were conductive to water at one specific region of the testa-the strophiole. In a further experiment, under laboratory conditions, hard seeds were subjected to temperature fluctuations of 23-60�C with cycle lengths varying from 15 minutes to 1 hour. There was no reduction in the percentage of hard seeds except in two trials when that portion of each cycle at 60�C was greater than 45 minutes.

Effects of daily temperature fluctuations on growth and hematology of juvenile Acipenser baerii

2011 ◽  
Vol 27 (2) ◽  
pp. 591-594 ◽  
Author(s):  
M. A. Y. Sadati ◽  
M. Pourkazemi ◽  
M. Shakurian ◽  
M. H. S. Hasani ◽  
H. R. Pourali ◽  
...  
Keyword(s):  
Temperature Fluctuations ◽  
Daily Temperature ◽  
Acipenser Baerii ◽  
Daily Temperature Fluctuations
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