Constraints by oxygen and food quality on carbon pathway regulation: a co-limitation study with an aquatic key herbivore
Constraints by oxygen and food quality on carbon pathway regulation: a co-limitation study with an aquatic key herbivore
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氧气和食物质量对碳途径调节的限制：与水生主要食草动物的共同限制研究
DOI：
10.1890/14-0041.1
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发表时间：
2014
期刊：
影响因子：
4.8
通讯作者：
A. Wacker
中科院分区：
文献类型：
--
作者：
M. Lukas;A. Wacker
在食物网中，食草动物通常受到矿物和生化限制方面的低食物质量的限制，这在水生生态系统中可能与有限的氧气条件共存。由于低食物质量意味着碳（C）是过量的，因此，一个规则，以摆脱多余的C是至关重要的消费者的表现，我们研究了C的途径（摄食，粪便释放，排泄和呼吸）的水生关键草食动物（大型蚤）。我们测试了消费者C途径是否由于矿物质（磷，P）或生化（胆固醇和脂肪酸）限制而增加，以及当氧气不足时这些法规如何变化。在这样的条件下，至少呼吸上调的能力可能受到限制。此外，我们还讨论了氧转运蛋白血红蛋白（Hb）在碳预算调节中的潜在作用。不同的食物质量限制导致某些C调节模式，以增加对过量膳食的去除。
In food webs, herbivores are often constrained by low food quality in terms of mineral and biochemical limitations, which in aquatic ecosystems can co-occur with limited oxygen conditions. As low food quality implies that carbon (C) is available in excess, and therefore a regulation to get rid of excess C is crucial for the performance of consumers, we examined the C pathways (ingestion, feces release, excretion, and respiration) of a planktonic key herbivore (Daphnia magna). We tested whether consumer C pathways increase due to mineral (phosphorus, P) or biochemical (cholesterol and fatty acid) limitations and how these regulations vary when in addition oxygen is low. Under such conditions, at least the capability of the upregulation of respiration may be restricted. Furthermore, we discussed the potential role of the oxygen-transporting protein hemoglobin (Hb) in the regulation of C budgets. Different food quality constraints led to certain C regulation patterns to increase the removal of excess dietary...
DOI：
10.1098/rspb.2008.1540
发表时间：
2009-05-22
影响因子：
4.7
作者：
Martin-Creuzburg, Dominik;Sperfeld, Erik;Wacker, Alexander
通讯作者：
Wacker, Alexander
影响因子：
2.8
作者：
Sperfeld, Erik;Wacker, Alexander
通讯作者：
Wacker, Alexander