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首页> 外文期刊>Journal of oceanography >Isoprenoids of Okinawan mangroves as lipid input into estuarine ecosystem
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Isoprenoids of Okinawan mangroves as lipid input into estuarine ecosystem

机译：冲绳红树林的类异戊二烯作为脂质输入河口生态系统

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Isoprenoids in the nonsaponifiable lipids (NSL) fraction of Okinawan mangroves were analyzed with special reference to their importance as lipid input into estuarine ecosystems. Triterpenoids and phytosterols comprised the major proportion of NSL. Identifications of the triterpenoids and phytosterols in NSL fraction were based on the interpretation of 13C-NMR and GC-MS spectra. The triterpenoids and phytosterols mainly comprised 11 and 6 compounds, respectively. The major components were lupeol, β-amyrin and taraxerol for triterpenoids, and β-sitosterol and stigmasterol for phytosterols. The diversity in the terpenoid composition was noted in both leaves and roots of mangrove species, implying the chemotaxonomic utility of terpenoids. Terpenoid compositions of the root are not always similar to that of leaf, suggesting that terpenoids in the root are produced by biosynthesis in situ, not by translocation of the synthate from the leaf. Terpenoids existed in greater proportion in the outer parts of the root. These data are likely to contribute to estimating the lipid input from mangrove trees adjacent to estuarine sediments and the ocean.
机译：对冲绳红树林的非皂化脂质（NSL）部分中的类异戊二烯进行了分析，并特别提及了它们作为向河口生态系统中的脂质输入的重要性。三萜类和植物甾醇占NSL的主要比例。 NSL馏分中的三萜和植物甾醇的鉴定基于13C-NMR和GC-MS光谱的解释。三萜类和植物甾醇主要分别包含11种和6种化合物。主要成分是三萜类化合物中的羽扇豆酚，β-香豆素和taraxerol，以及植物甾醇的β-谷甾醇和豆甾醇。在红树林物种的叶子和根部都发现了萜类化合物组成的多样性，这暗示了萜类化合物的化学分类学用途。根中的萜类化合物并不总是与叶相似，这表明根中的萜类化合物是通过原位生物合成产生的，而不是通过叶片中合成物的移位产生的。萜类化合物以较大比例存在于根的外部。这些数据可能有助于估计与河口沉积物和海洋相邻的红树林的脂质输入。

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