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首页> 美国政府科技报告 >Life Cycle, Ecology, and Management Considerations of the Green Filamentous Alga, 'Pithophora'
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Life Cycle, Ecology, and Management Considerations of the Green Filamentous Alga, 'Pithophora'

机译：绿色丝状藻类的生命周期，生态和管理考虑，'pithophora'

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Pithophora, a green filamentous, spore-forming alga in the order Cladophorales, forms infestations of thick free-floating mats in small impoundments, shallow lakes, and coves and channels of larger lakes and reservoirs throughout the midwest and southeastern United States. The purpose of the research was to obtain data on the biology of Pithophora in order to establish a basis for management recommendations. The life cycle of Pithophora oedogonia consists of two stages: Branching filamentous cells and akinetes. Both cell types are enclosed by a thick cell wall composed primarily of cellulose with additional amounts of sugars, amino sugars, and proteins, the latter being concentrated in the outer cell wall layer. Chiten comprises 6 percent of the cell wall by weight and is localized in the outer wall layers, cross wall disks and associated bands. Akinetes that form in the free floating mats in the fall reach their highest number in the winter, and germinate at 20C water temperature.

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