PLANT PIGMENTS AS TRACERS OF EMERGENT AND SUBMERGENT MACROPHYTES FROM THE HUDSON RIVER
PLANT PIGMENTS AS TRACERS OF EMERGENT AND SUBMERGENT MACROPHYTES FROM THE HUDSON RIVER
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DOI：
10.1139/f90-054
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发表时间：
1990-03-01
影响因子：
2.4
通讯作者：
FINDLAY, S
中科院分区：
文献类型：
--
作者：
BIANCHI, TS;FINDLAY, S
水生植物光合色素浓度的比值可以提供一个有用的方式来区分投入的挺水与沉水植物到水生食物网。利用反相高效液相色谱法，我们研究了类胡萝卜素和叶绿素色素标记物的分布在8个大型水生植物从潮汐淡水部分的哈德逊河。叶黄素是最丰富的类胡萝卜素在所有的水生植物，并在紧急形式的浓度显着较高。叶绿素b浓度显着高于沉水植物比在紧急形式。叶绿素b/叶黄素的比值可能是一个有用的标志，以区分沉水和挺水形式的水生植物在水生生态系统中的有机输入。
Ratios of photosynthetic pigment concentrations in aquatic macrophytes can provide a useful way to differentiate between inputs of emergent versus submergent macrophytes into aquatic food webs. Using reversed-phase HPLC we examined the distribution of carotenoid and chlorophyll pigment markers in eight macrophytes from the tidal freshwater portion of the Hudson River. Lutein was the most abundant carotenoid in all macrophytes, and concentrations in the emergent forms were significantly higher. Chlorophyll-b showed significantly higher concentrations in the submerged macrophytes than in the emergent forms. The chlorophyll-b/lutein ratio may be a useful marker to distinguish between organic inputs of submergent and emergent forms of macrophytes in aquatic ecosystems.