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Literature summary for 1.5.1.23 extracted from

  • Alter, K.; Morash, A.; Andrewartha, S.; Andrew, S.; Clark, T.; Elliott, N.; Frappell, P.
    Aerobic and anaerobic movement energetics of hybrid and pure parental abalone (2021), J. Comp. Physiol. B, 191, 1111-1124 .
    View publication on PubMed
Search for more literature for 1.5.1.23

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
tauropine + NAD+ + H2O Haliotis rubra
-
 taurine + pyruvate + NADH + H+
-
 ?
tauropine + NAD+ + H2O Haliotis laevigata
-
 taurine + pyruvate + NADH + H+
-
 ?

Organism

Organism UniProt Comment Textmining
Haliotis laevigata
-
-
-
Haliotis rubra
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
adductor
-
 Haliotis rubra
-
adductor
-
 Haliotis laevigata
-
foot
-
 Haliotis rubra
-
foot
-
 Haliotis laevigata
-
additional information abalone are acclimated to control (16°C) and typical summer temperatures (23°C), each with oxygen treatments of 100% air saturation (O2sat) or 70% O2sat Haliotis rubra
-
additional information abalone are acclimated to control (16°C) and typical summer temperatures (23°C), each with oxygen treatments of 100% air saturation (O2sat) or 70% O2sat Haliotis laevigata
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
 enzyme activities (U*mg P-1) of tauropine dehydrogenase (TDH) in the foot and adductor muscles (combined) of hybrids, Haliotis rubra compared to Haliotis laevigata acclimated to 16°C and 100% air saturation (O2sat), or 16°C and 70% O2sat, or 23°C and 100% O2sat, or 23°C and 70% O2sat, overview Haliotis rubra
additional information
-
 enzyme activities (U*mg P-1) of tauropine dehydrogenase (TDH) in the foot and adductor muscles (combined) of hybrids, Haliotis rubra compared to Haliotis laevigata acclimated to 16°C and 100% air saturation (O2sat), or 16°C and 70% O2sat, or 23°C and 100% O2sat, or 23°C and 70% O2sat, overview Haliotis laevigata

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
tauropine + NAD+ + H2O
-
 Haliotis rubra taurine + pyruvate + NADH + H+
-
 ?
tauropine + NAD+ + H2O
-
 Haliotis laevigata taurine + pyruvate + NADH + H+
-
 ?

Synonyms

Synonyms Comment Organism
TDH
-
 Haliotis rubra
TDH
-
 Haliotis laevigata

Cofactor

Cofactor Comment Organism Structure
NAD+
-
 Haliotis rubra
NAD+
-
 Haliotis laevigata
NADH
-
 Haliotis rubra
NADH
-
 Haliotis laevigata

General Information

General Information Comment Organism
additional information the differences in movement, anaerobic enzyme activities, and MO2 between hybrids and pure species in this study are not marked enough to support the original hypothesis that hybrids have an energetic advantage over pure species Haliotis rubra
additional information the differences in movement, anaerobic enzyme activities, and MO2 between hybrids and pure species in this study are not marked enough to support the original hypothesis that hybrids have an energetic advantage over pure species Haliotis laevigata
physiological function the major anaerobic enzymes produced by abalone are lactate dehydrogenase (LDH) and tauropine dehydrogenase (TDH), which catalyse the reaction of pyruvate to D-lactate and tauropine, respectively. Abalone produce energy via opine and lactate pathways not only during functional tissue hypoxia that results from exercise but also during environmental hypoxia and thermal stress. Abalone are experimentally acclimated to control (16°C) and typical summer temperatures (23°C), each with oxygen treatments of 100% air saturation (O2sat) or 70% O2sat. During the first phase (chronic exposure), movement and oxygen consumption rates (MO2) of abalone are measured during a 2 day observation period at stable acclimation conditions. Additionaly, lactate dehydrogenase (LDH) and tauropine dehydrogenase (TDH) activities are measured. During phase two (acute exposure), O2sat is raised to 100% for abalone acclimated to 70% O2sat followed by an acute decrease in oxygen to anoxia for all acclimation groups during which movement and MO2 are determined again. During the chronic exposure, hybrids and Haliotis laevigata move shorter distances than Haliotis rubra. Resting MO2, LDH and TDH activities, however, are similar between abalone types but are increased at 23°C compared to 16°C. During the acute exposure, the initial increase to 100% O2sat for individuals acclimated to 70% O2sat result in increased movement compared to individuals acclimated to 100% O2sat for hybrids and Haliotis rubra when compared within type of abalone. Similarly, MO2 during spontaneous activity of all three types of abalone previously subjected to 70% O2sat increase above those at 100% O2sat. When oxygen levels have dropped below the critical oxygen level (Pcrit), movement in hybrids and Haliotis laevigata increase up to 6.5fold compared to movement above Pcrit. Differences in movement and energy use between hybrids and pure species are not marked enough to support the hypothesis that the purportedly higher growth in hybrids is due to an energetic advantage over pure species. Lactate dehydrogenase activity is twice as high in abalone_23°C in comparison to abalone_16°C, as is TDH activity. Further, TDH activity tends to be influenced by acclimation oxygen level and type of abalone. While movement tends to decrease with increasing temperatures, resting MO2 as well as LDH and TDH activities are increased at the higher temperature in all three types of abalone during the chronic exposure Haliotis rubra
physiological function the major anaerobic enzymes produced by abalone are lactate dehydrogenase (LDH) and tauropine dehydrogenase (TDH), which catalyse the reaction of pyruvate to D-lactate and tauropine, respectively. Abalone produce energy via opine and lactate pathways not only during functional tissue hypoxia that results from exercise but also during environmental hypoxia and thermal stress. Abalone are experimentally acclimated to control (16°C) and typical summer temperatures (23°C), each with oxygen treatments of 100% air saturation (O2sat) or 70% O2sat. During the first phase (chronic exposure), movement and oxygen consumption rates (MO2) of abalone are measured during a 2 day observation period at stable acclimation conditions. Additionaly, lactate dehydrogenase (LDH) and tauropine dehydrogenase (TDH) activities are measured. During phase two (acute exposure), O2sat is raised to 100% for abalone acclimated to 70% O2sat followed by an acute decrease in oxygen to anoxia for all acclimation groups during which movement and MO2 are determined again. During the chronic exposure, hybrids and Haliotis laevigata move shorter distances than Haliotis rubra. Resting MO2, LDH and TDH activities, however, are similar between abalone types but are increased at 23°C compared to 16°C. During the acute exposure, the initial increase to 100% O2sat for individuals acclimated to 70% O2sat result in increased movement compared to individuals acclimated to 100% O2sat for hybrids and Haliotis rubra when compared within type of abalone. Similarly, MO2 during spontaneous activity of all three types of abalone previously subjected to 70% O2sat increase above those at 100% O2sat. When oxygen levels have dropped below the critical oxygen level (Pcrit), movement in hybrids and Haliotis laevigata increase up to 6.5fold compared to movement above Pcrit. Differences in movement and energy use between hybrids and pure species are not marked enough to support the hypothesis that the purportedly higher growth in hybrids is due to an energetic advantage over pure species. Lactate dehydrogenase activity is twice as high in abalone_23°C in comparison to abalone_16°C, as is TDH activity. Further, TDH activity tends to be influenced by acclimation oxygen level and type of abalone. While movement tends to decrease with increasing temperatures, resting MO2 as well as LDH and TDH activities are increased at the higher temperature in all three types of abalone during the chronic exposure Haliotis laevigata