Mineral phase analysis of various marine-species shells and skeletons collected in Japan: Implications for marine biominerals
Mineral phase analysis of various marine-species shells and skeletons collected in Japan: Implications for marine biominerals
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日本收集的各种海洋物种贝壳和骨骼的矿物相分析：对海洋生物矿物的影响
DOI：
10.1101/2022.10.30.514443
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Saito-Kokubu Yoko
中科院分区：
文献类型：
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作者：
Mitsuguchi Takehiro;Minakata Keiji;Sugihara Kaoru;Hiraoka Masanori;Yoshida Masa-aki;Saito-Kokubu Yoko
利用X射线衍射仪对采自日本的下列10门18纲146-148种现存海洋生物的壳/骨进行了物相分析：红藻门(Forideophyceae)、有孔虫(Globohamamea和Tubohamamea)、有孔虫(Herctinellida)、线虫(Cnidaria)、苔藓纲(Gymnolaemata)、腕足纲(Lingulata和Rhynchonellata)、软体动物(双瓣纲、Cephalopoda、Gasterpoda和PolyPlophora)、环节动物(多毛目)、节肢动物(环足纲)和Eochindera(Asteroidae、Crinodea和Ehadea)。对其中一些物种的贝壳/骨骼的每个特定部分进行了分析。几乎所有的样品都有方解石、文石或它们的混合相，这主要取决于它们的分类和壳/骨架结构。对于含有大量方解石的样品，从其X射线衍射数据中确定了方解石的MgCO3wt%，范围从∼0到∼15wt%，并显示出明显的分类间差异。Rhynchonellata、双壳类、腹足纲和马蹄类的∼值较低(∼0-4wt%)；头足类的中值(∼4-8wt%)；弗氏藻类、球藻类、管足类、多毛类、海星总科和海龙总科的高值(∼8-15wt%)；裸角类的低到高值；珊瑚虫和棘形虫的中到高值。这些碳酸镁数据显示了广泛的趋势，与一般的系统进化基本一致(即每个系统发育组的模式非常相似)。在普通棘突总科物种中发现了明显的个体内碳酸镁含量变异性(即它们的牙齿和脊椎的碳酸镁含量低于其他骨骼部分)。文中还对上述大多数含方解石类的碳酸镁含量与海水温度的相关性进行了研究和讨论。为了解释我们基于X射线衍射仪对各种海洋生物贝壳/骨骼的观察结果，通过与以往研究的比较，并利用分类学、贝壳/骨骼结构、栖息地、生活方式等知识进行了详细的讨论。全面的数据集和讨论将为生物矿化研究提供有用的影响。
Mineral phase analysis was performed, using X-ray diffractometry (XRD), for marine-organism shell/skeleton samples of 146–148 extant species of the following 10 phyla (18 classes) collected in Japan: Rhodophyta (Florideophyceae), Foraminifera (Globothalamea and Tubothalamea), Porifera (Hexactinellida), Cnidaria (Anthozoa and Hydrozoa), Bryozoa (Gymnolaemata), Brachiopoda (Lingulata and Rhynchonellata), Mollusca (Bivalvia, Cephalopoda, Gastropoda and Polyplacophora), Annelida (Polychaeta), Arthropoda (Cirripedia), and Echinodermata (Asteroidea, Crinoidea and Echinoidea). Some of the species were analyzed for each specific part of their shells/skeletons. Almost all the samples exhibited any of calcite, aragonite or their mixed phase, predominantly depending on their taxonomy and shell/skeletal structures. For samples containing significant amounts of calcite, the MgCO3wt % of calcite has been determined from their XRD data, which ranges from ∼0 to ∼15 wt % and indicates clear inter-taxonomic differences. Low MgCO3values (∼0–4 wt %) are observed for Rhynchonellata, Bivalvia, Gastropoda and Cirripedia; intermediate values (∼4–8 wt %) for Cephalopoda; high values (∼8–15 wt %) for Florideophyceae, Globothalamea, Tubothalamea, Polychaeta, Asteroidea and Crinoidea; low-to-high values for Gymnolaemata; intermediate-to-high values for Anthozoa and Echinoidea. These MgCO3data show broad trends mostly consistent with general phylogenetic evolution (i.e. very similar patterns for each phylogenetic group). Distinct within-individual variability of the MgCO3content is found for regular Echinoidea species (i.e. their teeth and spines have lower MgCO3values than the other skeletal parts). Correlation of the MgCO3content with seawater temperature is also examined/discussed for most of the above calcite-containing classes. In order to interpret our XRD-based observations of various marine-species shells/skeletons, detailed discussions are presented by comparing with previous studies and also by using knowledge of taxonomy, shell/skeletal structures, habitats, living modes and so on. The comprehensive dataset and discussions will provide useful implications for biomineralization studies.