Biochemical changes during life cycles of marine phytoflagellates
نویسندگان
چکیده
منابع مشابه
Integrating function across marine life cycles.
Complex life cycles involve a set of discrete stages that can differ dramatically in form and function. Transitions between different stages vary in nature and magnitude; likewise, the degree of autonomy among stages enabled by these transitions can vary as well. Because the selective value of traits is likely to shift over ontogeny, the degree of autonomy among stages is important for understa...
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Offspring size can have pervasive effects throughout an organism's life history. Mothers can make either a few large or many small offspring, and the balance between these extremes is determined by the relationship between offspring size and performance. This relationship in turn is thought to be determined by the offspring's environment. Recently, it has become clear that events in one life-hi...
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I examine the plausibility of theories that postulate the development of complex chemical organization without requiring the replication of genetic polymers such as RNA. One conclusion is that theories that involve the organization of complex, small-molecule metabolic cycles such as the reductive citric acid cycle on mineral surfaces make unreasonable assumptions about the catalytic properties ...
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Complex life cycles have evolved independently numerous times in marine animals as well as in disparate algae. Such life histories typically involve a dispersive immature stage followed by settlement and metamorphosis to an adult stage on the sea floor. One commonality among animals exhibiting transitions of this type is that their larvae pass through a 'precompetent' period in which they do no...
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The fac t t ha t sarcomas are induced in rodents by imbedded films of polymers has been established in this l abora to ry (1~-15) and had been conf irmed by a number of o ther invest igators (~, 6, 8, 10, 19). Subsequent studies have shown t h a t this phenomenon is not l imited to films of organic polymers b u t t h a t imbedded meta l foils have the same effect (9, 10, l l ) . This fact , in ...
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ژورنال
عنوان ژورنال: Fisheries science
سال: 2002
ISSN: 0919-9268
DOI: 10.2331/fishsci.68.sup1_489