. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. A 8 Time(h) 12 16 Figure 4. Time-course of the levels of aspartate in the shell adduc- tor (SA; solid circles) and foot (F; open circles) muscle of Haliolis la- mellosa during experimental anoxia and recovery. For further details, see Figure 2. sues, 13 h of recovery after anoxia led to marginally higher values of the energy charge as estimated for con- trol animals. The sum of the arginine containing compounds (argi- nine and arginine phosphate) in control animals was about 4-fold higher in the shell adductor muscle (31 ^mo
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. A 8 Time(h) 12 16 Figure 4. Time-course of the levels of aspartate in the shell adduc- tor (SA; solid circles) and foot (F; open circles) muscle of Haliolis la- mellosa during experimental anoxia and recovery. For further details, see Figure 2. sues, 13 h of recovery after anoxia led to marginally higher values of the energy charge as estimated for con- trol animals. The sum of the arginine containing compounds (argi- nine and arginine phosphate) in control animals was about 4-fold higher in the shell adductor muscle (31 ^mo!es/g w. wt.) than in the foot muscle (7 ^moles/g w. wt.), and it stayed virtually constant throughout the ex- periment (results not shown). Arginine phosphate levels fell drastically in the shell adductor during anoxia. A sig- nificant drop was also seen in the foot (Fig. 3). Concomi- tantly, the arginine levels rose as a mirror image (results not shown). During recovery, arginine phosphate levels rose more slowly than the energy charge value in both tissues and reached initial levels after 3 h. The aspartate levels in both tissues were the same in control ormers and there was a significant decline in both tissues upon anoxic incubation (Fig. 4). Whereas aspar- tate levels were not restored in the shell adductor during recovery, the levels increased slowly, but steadily, in the foot muscle. However, after 13 h of recovery, aspartate levels still differed from pre-anoxic exposure levels. Levels of D- and L-alanine in control animals were 3- to 4-fold higher in the shell adductor than in the foot (Fig. 5). During anoxia, both stereoisomers accumulated significantly in the foot muscle; L-alanine accumulated in the shell adductor muscle. Alanine levels in the foot muscle returned to control levels during recovery (Fig. 5), but recovery was not evident in the shell adductor muscle. Initial succinate levels in control animals were slightly higher in the shell adductor compared to th
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
