Some aspects of the iodine metabolism of the giant kelp Macrocystis pyrifera (phaeophyceae)
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چکیده
منابع مشابه
Translocation of 14 C in Macrocystis pyrifera ( Giant Kelp ) 1
The pattern of import and export of IC-labeled assinuates in Macrocystis pyrifers (L) C. A. Agardh in southern California was studied by labeling single blades on frods, in situ, with I'4CINaHCO3 for 24 bours. The pattem was found to be similar to that known in dicotyedons: actively growing tissue imported and did not export. As a blade reached maturity it began to export, at first only acropet...
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Delayed recruitment of microscopic stages in response to cyclical cues is critical to the population dynamics of many annual and seasonally reproducing perennial seaweeds. Microscopic stages may play a similar role in continuously reproducing perennials in which adult sporophytes are subject to episodic mortality, if they can respond directly to the unpredictable onset and relaxation of unfavor...
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To increase knowledge of transcript diversity for the giant kelp, Macrocystis pyrifera, and assess gene expression across naturally occurring depth gradients in light, temperature and nutrients, we sequenced four cDNA libraries created from blades collected at the sea surface and at 18 m depth during the winter and summer. Comparative genomics cluster analyses revealed novel gene families (clus...
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Assemblages of macroalgae are believe to be among the most productive ecosystems in the world, yet difficulties in obtaining direct estimates of biomass and primary production have led to few macroalgal data sets from which the consequences of long-term change can be assessed. We evaluated the validity of using two easily measured population variables (frond density and plant density) to estima...
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This study examined the bioaccumulation of the heavy metals copper (Cu) and zinc (Zn) by the giant kelp, Macrocystis pyrifera, by exposing meristematic kelp tissue to elevated metal concentrations in seawater within laboratory aquaria. Specifically, we carried out two different experiments. The first examined metal uptake under a single, ecologically-relevant elevation of each metal (30 ppb Cu ...
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ژورنال
عنوان ژورنال: Journal of Inorganic Biochemistry
سال: 2017
ISSN: 0162-0134
DOI: 10.1016/j.jinorgbio.2017.09.003