OXYGEN POISONING IN THE ANNELID<i>TUBIFEX TUBIFEX</i>. II. OSMOTIC PROTECTION

Walker, Joanne G.

doi:10.2307/1540034

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…acetate and propionate acids) are excreted out of the body in large quantities (Schottler & Schroff, 1976). Moderately high levels of oxygen concentration have been reported to be toxic to T. tubifex (Fox & Taylor, 1954;Walker, 1970). The blood of Alma contains an extracellular, high molecular weight haemoglobin with a remarkably high oxygen af®nity (Mangum et al, 1975).…”

Section: Metabolic Demands and Scopes Of Alma Eminimentioning

confidence: 99%

Respiratory stratagems, mechanisms, and morphology of the ‘lung’ of a tropical swamp worm, Alma emini Mich. (Oligochaeta: Glossoscolecidae): a transmission and scanning electron microscope study, with field and laboratory observations

Maina¹,

Maloiy²,

Wood³

1998

J. Zoology

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Link to this article: http://journals.cambridge.org/abstract_S0952836998008123 How to cite this article: J. N. Maina, G. M. O. Maloiy and C. M. Wood (1998). Respiratory stratagems, mechanisms, and morphology of the 'lung' of a tropical swamp worm, Alma emini Mich. (Oligochaeta: Glossoscolecidae): a transmission and scanning electron microscope study, with eld and laboratory observations. Request Permissions : Click here Downloaded from http://journals.cambridge.org/ZOO, IP address: 128.6.218.72 on 04 Jun 2015Respiratory stratagems, mechanisms, and morphology of thè lung' of a tropical swamp worm, Alma emini Mich. (Oligochaeta: Glossoscolecidae): a transmission and scanning electron microscope study, with ®eld and laboratory observations AbstractThe swamp worm Alma emini subsists in the highly productive waterlogged swamps around the East African Lake Victoria. The soil consists of putrefying plant matter from which gases like methane, carbon dioxide, and hydrogen sulphide are formed and profusely discharged. The interstitial spaces in the soil are generally anoxic and the soil is highly reducing. To survive in such an inimical habitat, Alma has evolved a remarkably unique respiratory strategy. The posterodorsal part of the body, which is well supplied with blood, is regularly converted into a`lung' across which gases are exchanged at the surface or under water. Air and/or water may be entrapped in the`lung' and carried for use (as a source of oxygen and/or a depository of carbon dioxide) during the ensuing underground sojourn. By evolving a unique respiratory potential, Alma emini has been able to¯ourish in a highly dynamic and virtually anoxic habitat while essentially having a capacity for aerobic biochemistry. Putative indications of cellular adaptations against hydrogen sulphide toxicity were observed, especially in the cells that line the`lung'. A. emini presents a good example of nature's tenacious and innovative designs for surviving in severe environments.

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Section: Metabolic Demands and Scopes Of Alma Eminimentioning

confidence: 99%

Respiratory stratagems, mechanisms, and morphology of the ‘lung’ of a tropical swamp worm, Alma emini Mich. (Oligochaeta: Glossoscolecidae): a transmission and scanning electron microscope study, with field and laboratory observations

Maina¹,

Maloiy²,

Wood³

1998

J. Zoology

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Abstracts

Shilling¹,

Werts²

1973

Underwater Medicine and Related Sciences

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Assessing the life support systems of the Ben Franklin submarine. In: Proceedings of the design engineering conference and show of the American Society of Mechanical Engineers, Chicago, May 1970, Paper 70-DE-60, 8p.With a successful completion of the Gulf Stream Dnft Mission, the Ben Franklin has more than proven itself. During this miSSion, a six-man crew was sustained for a little more than 30 days by a system that was quite umque In many respects. The system: (1) relied on natural convection for mmosphere control; (2) consumed essentially no electrical energy; (3) cost under $45,000 including expendables; (4) could have performed for 60 days with minor modificatIOns. (Author's abstract) (Aerosp. Med. BIOI.

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Low sensitivity of Tubifex sp. respiration to hydrogen sulfide and other inhibitors

Degn¹,

Kristensen²

1981

Comparative Biochemistry and Physiology Part B: Comparative Bio

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OXYGEN POISONING IN THE ANNELIDTUBIFEX TUBIFEX. II. OSMOTIC PROTECTION

Cited by 4 publications

References 10 publications

Respiratory stratagems, mechanisms, and morphology of the ‘lung’ of a tropical swamp worm, Alma emini Mich. (Oligochaeta: Glossoscolecidae): a transmission and scanning electron microscope study, with field and laboratory observations

Respiratory stratagems, mechanisms, and morphology of the ‘lung’ of a tropical swamp worm, Alma emini Mich. (Oligochaeta: Glossoscolecidae): a transmission and scanning electron microscope study, with field and laboratory observations

Abstracts

Low sensitivity of Tubifex sp. respiration to hydrogen sulfide and other inhibitors

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