一种海洋哲水蚤类桡足动物的休眠卵呼吸速率：通过纳米呼吸测定法进行监测。

Respiration rates of subitaneous eggs from a marine calanoid copepod: monitored by nanorespirometry.

作者信息

Nielsen Pernille, Larsen Lars H, Ramløv Hans, Hansen Benni W

机构信息

Department of Life Sciences and Chemistry, Roskilde University, Universitetsvej 1, P.O. Box 260, Roskilde 4000, Denmark.

出版信息

J Comp Physiol B. 2007 Apr;177(3):287-96. doi: 10.1007/s00360-006-0128-1. Epub 2006 Nov 28.

DOI:10.1007/s00360-006-0128-1

PMID:17131128

Abstract

The oxygen consumption rate during embryogenesis of Acartia tonsa subitaneous eggs were measured at different temperatures (10, 15, 17, 21, 24 and 28 degrees C) with nanorespirometry. The oxygen consumption was constant during the embryogenesis but increased rapidly at hatching time. The mean +/- SD oxygen consumption rate increased exponentially with temperature and ranged from 0.09 +/- 0.04 (10 degrees C) to 0.54 +/- 0.09 nmol O(2) egg(-1) h(-1) (28 degrees C). The mean +/- SD Q(10)-value was 2.51 +/- 0.15. Calculations of energy consumption during embryogenesis ranged from 1.86 to 18.28 mJ depending on temperature and development time. We conclude that the effect of temperature on oxygen consumption rate was far less important than the prolonged development time when calculating the energy consumed during embryogenesis.

摘要

利用纳米呼吸测定法，在不同温度（10、15、17、21、24和28摄氏度）下测量了近缘哲水蚤瞬时卵胚胎发育过程中的耗氧率。胚胎发育过程中耗氧量恒定，但在孵化时迅速增加。平均±标准差耗氧率随温度呈指数增加，范围从0.09±0.04（10摄氏度）到0.54±0.09 nmol O₂ 卵⁻¹ h⁻¹（28摄氏度）。平均±标准差Q₁₀值为2.51±0.15。根据温度和发育时间，胚胎发育过程中的能量消耗计算值在1.86至18.28 mJ之间。我们得出结论，在计算胚胎发育过程中消耗的能量时，温度对耗氧率的影响远不如延长的发育时间重要。