. The Biological bulletin. Biology; Zoology; Marine biology. 3S DAVID L. DENLINGER. ,102g HOg .067g .071g Figure 2. Infradian cycles of oxygen consumption in individual diapausing pupae of 6". insi (A and Bj and P. spilogaster (C and D) at 15° C. day period was /x\ 02/g hr and in five pupae of P. spilogaster the mean QO;> was /xl Oo,'g/hr, rates that are 13-15% of the minimum rate observed in non-diapause individuals at the same temperature. Endocrine involvement Pupae of 5. insi that had been in diapause at 15° C for 2 weeks were in- jected with 10% ethanol
. The Biological bulletin. Biology; Zoology; Marine biology. 3S DAVID L. DENLINGER. ,102g HOg .067g .071g Figure 2. Infradian cycles of oxygen consumption in individual diapausing pupae of 6". insi (A and Bj and P. spilogaster (C and D) at 15° C. day period was /x\ 02/g hr and in five pupae of P. spilogaster the mean QO;> was /xl Oo,'g/hr, rates that are 13-15% of the minimum rate observed in non-diapause individuals at the same temperature. Endocrine involvement Pupae of 5. insi that had been in diapause at 15° C for 2 weeks were in- jected with 10% ethanol or solutions of ecdysterone in 10% ethanol. After 20 additional days at 15° C, pupae were examined for diapause termination. De- velopment was initiated in 44'< of the pupae with 5 fig ecdysterone (Fig. 3). By itself, topical application of juvenile hormone analogue (50 /*g ZR515 pupa) broke diapause in only 8% of the pupae, but when applied in concert with ecdysterone injections, juvenile hormone analogue greatly boosted the rate of diapause termination (Fig. 3). The effective dose of ecdysterone required for 40% diapause termination was reduced from 5 to /ig by the addition of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-; Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report; HighWire Press. Lancaster, Pa. [etc. ] : Lancaster Press, inc. [etc. ]
Size: 1545px × 1617px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectb, booksubjectzoology