scholarly journals Characterization of General Esterases in Workers of the Eastern Subterranean Termite (Isoptera: Rhinotermitidae)

1995 ◽  
Vol 88 (3) ◽  
pp. 574-578 ◽  
Author(s):  
Robert W. Davis ◽  
Shripat T. Kamble ◽  
Suresh K. Prabhakaran
Keyword(s):  
Subterranean Termite ◽  
General Esterases ◽  
Eastern Subterranean Termite

Molecular characterization of neuropeptide F from the eastern subterranean termite Reticulitermes flavipes (Kollar) (Isoptera: Rhinotermitidae)

Peptides ◽  
2010 ◽  
Vol 31 (3) ◽  
pp. 419-428 ◽  
Author(s):  
Andrew B. Nuss ◽  
Brian T. Forschler ◽  
Joe W. Crim ◽  
Victoria TeBrugge ◽  
Jan Pohl ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Reticulitermes Flavipes ◽  
Subterranean Termite ◽  
Neuropeptide F ◽  
Eastern Subterranean Termite

scholarly journals Supercooling Differences in the Eastern Subterranean Termite (Isoptera: Rhinotermitidae)

2004 ◽  
Vol 39 (4) ◽  
pp. 525-536 ◽  
Author(s):  
Brian J. Cabrera ◽  
Shripat T. Kamble
Keyword(s):  
Atmospheric Pressure ◽  
Reticulitermes Flavipes ◽  
Biochemical Properties ◽  
Subterranean Termite ◽  
Control Groups ◽  
Supercooling Point ◽  
Ice Nucleators ◽  
Laboratory Workers ◽  
Eastern Subterranean Termite ◽  
Termite Hindgut

Supercooling points were determined for untreated field-collected and untreated laboratory-maintained Reticulitermes flavipes (Kollar) workers and soldiers. Workers treated with antibiotics or had their hindgut-protozoa removed by exposing them to oxygen under pressure to determine the effects of absence of the hindgut fauna on supercooling. Supercooling points were compared between live and freshly-killed workers to determine whether supercooling in this species might be simply due to the biochemical properties of body fluids. Laboratory-maintained workers were also subjected to desiccation, starvation, or atmospheric pressure to determine their effects on supercooling. Supercooling points were lowest for laboratory workers treated with antibiotics and those that fed on brown paper-toweling for 7 d. Untreated field-collected workers had significantly higher supercooling points than untreated laboratory-maintained workers (−6.06 ± 0.79°C vs −9.29 ± 2.38°C, P < 0.0001). Both untreated field-collected and laboratory soldiers had significantly lower supercooling points than their respective workers (−7.39 ± 2.01°C vs −6.06 ± 0.79°C, P < 0.0001; and −11.60 ± 2.53°C vs −9.29 ± 2.38°C, P< 0.0001, respectively). There was no significant association between termite body mass and supercooling points for both laboratory and field termites (P= 0.0523 and P = 0.6242) or water content of laboratory termites and supercooling points (P = 0.1425). Defaunated workers had significantly lower supercooling points (−10.34 ± 2.38°C) than normally faunated workers (−9.48 ± 1.85°C)(P= 0.0095) suggesting that the symbiotic fauna may have higher supercooling points and act as ice nucleators in the termite hindgut. Starved and desiccated workers had significantly lower supercooling points (−10.38 ± 2.70°C and −10.39 ± 2.38°C, respectively) than their corresponding control groups (−9.87 ± 2.11°C and −9.89 ± 1.94°C; P = 0.0454; P = 0.0234, respectively) and untreated workers (−9.29 ± 2.38°C; P= 0.0021; P= 0.0011) suggesting that some forms of physical stress might lower the supercooling point.

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