Phototrophic microbes form endolithic biofilms in ikaite tufa columns (SW Greenland)

Trampe Erik; Castenholz Richard W.; Larsen Jens E. N.; Kühl Michael

摘要

Summary >Marine tufa‐columns, formed by the hydrated carbonate mineral ikaite, present a unique alkaline microbial habitat only found in Ikka Fjord (SW‐Greenland). The outermost parts of the ikaite columns exhibit a multitude of physico‐chemical gradients, and the porous ikaite is colonized by endolithic phototrophic biofilms serving as a substrate for grazing epifauna, where scraping by sea urchins affects overall column‐topography. We present a detailed study of the optical microenvironment, spatial organization, and photosynthetic activity of endolithic phototrophs within the porous ikaite crystal matrix. Cyanobacteria and diatoms formed distinctly coloured zones and were closely associated with ikaite‐crystals via excretion of exopolymers. Scalar‐irradiance measurements showed strong attenuation of visible light (400–700 nm), where only ～1% of incident irradiance remained at 20 mm depth. Transmission spectra showed in vivo absorption signatures of diatom and cyanobacterial photopigments, which were confirmed by HPLC‐analysis. Variable‐chlorophyll‐fluorescence‐imaging showed active photosynthesis with high‐light acclimation in the outer diatom layer, and low‐light acclimation in the underlying cyanobacterial part. Phototrophs in ikaite thus thrive in polymer‐bound endolithic biofilms in a complex gradient microhabitat experiencing constant slow percolation of highly alkaline phosphate‐enriched spring water mixing with cold seawater at the tufa‐column‐apex. We discuss the potential role of these biofilms in ikaite column formation. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract XMLNS =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”> <title type =“main”>摘要</ title> >海洋tufa由水合碳酸盐矿物矿石形成的科尔umns，目前仅在Ikka Fjord（SW-Greenland）中发现了一种独特的碱性微生物栖息地。 Ikaite柱的最外部部分表现出众多的物理化学梯度，多孔脂肪由岩层光养生物膜的殖民化，用作放牧Epifauna的基材，其中海胆刮擦影响整体柱状柱状。我们在多孔碘晶体基质内展示了岩溶微环境，空间组织和岩溶光学术的光合活性的详细研究。蓝藻和硅藻形成明显着色的区域，通过排泄与碘聚合物密切相关。标量辐照度测量显示出可见光（400-700nm）的强度衰减，其中仅〜1％的入射辐照度保持在20毫米深度。通过HPLC分析证实，透射光谱显示在硅藻和硅藻和蓝杆菌皮肤中的体内吸收签名中。可变叶绿素 - 荧光成像显示出具有外硅藻层中的高光灌进的活性光合作用，以及下面的蓝细菌部分中的低光适应。因此，Ikaite中的光学术在复合梯度微藻中的聚合物结合的内橄榄质生物膜中，经历了高碱性磷酸盐的春水水与Tufa柱 - 顶点的冷海水的恒定缓慢渗透。我们讨论了这些生物膜在Ikaite柱形成中的潜在作用。</ p> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-22868/'>《Environmental microbiology》</a> <b style="margin: 0 2px;">|</b><span>2017年第11期</span><b style="margin: 0 2px;">|</b><span>共17页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Trampe Erik&option=202" target="_blank" rel="nofollow">Trampe Erik;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Castenholz Richard W.&option=202" target="_blank" rel="nofollow">Castenholz Richard W.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Larsen Jens E. N.&option=202" target="_blank" rel="nofollow">Larsen Jens E. N.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kühl Michael&option=202" target="_blank" rel="nofollow">Kühl Michael;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Marine Biological SectionUniversity of Copenhagen Strandpromenaden 5Helsing?r DK‐3000 Denmark;</p> <p>Institute of Ecology and Evolution University of OregonEugene OR 97403 USA;</p> <p>Marine Biological SectionUniversity of Copenhagen Strandpromenaden 5Helsing?r DK‐3000 Denmark;</p> <p>Marine Biological SectionUniversity of Copenhagen Strandpromenaden 5Helsing?r DK‐3000 Denmark;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/183.html" title="微生物学">微生物学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> </p> </li> </ul> </div> </div> <div class="literature cardcommon" id="literaturereference" style="display:none"> <div class="similarity "> <h3 class="all_title" id="enpatent111">引文网络</h3> <div class="referencetab clearfix"> <ul id="referencedaohang"> <li dataid="referenceul">参考文献</li> <li dataid="citationul">引证文献</li> <li dataid="commonreferenceul">共引文献</li> <li dataid="commoncitationul">同被引文献</li> <li dataid="tworeferenceul">二级参考文献</li> <li dataid="twocitationul">二级引证文献</li> </ul> </div> <div class="reference_details" id="referenceList"> <ul id="referenceul"></ul> <ul id="citationul"></ul> <ul id="commonreferenceul"></ul> <ul id="commoncitationul"></ul> <ul id="tworeferenceul"></ul> <ul id="twocitationul"></ul> </div> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704023229188.html">Phototrophic microbes form endolithic biofilms in ikaite tufa columns (SW Greenland)</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Trampe Erik&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Trampe Erik,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Castenholz Richard W.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Castenholz Richard W.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Larsen Jens E. 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href="/conference-cn-35665/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 中国动物学会成立６０周年学术讨论会 </a> <span> <span> . 1994</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/02031265673.html">黑土退化的微生物学机理（1）——微生物在腐殖质形成与转化中的作用</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=刘文侠&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 刘文侠</a> <span> . 2006</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06120645867.html">在造纸工业中监控生物膜形成微生物的存在的方法</a> <b>[P]</b> . <span> 中国专利： CN1890433B </span> <span> . 2010.09.22</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120349141.html">抑制嗜热微生物在造纸机和纸板机中形成生物膜</a> <b>[P]</b> . <span> 中国专利： CN100333645C </span> <span> . 2007.08.29</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130416509616.html">Inhibiting biofilm formation at light inlet surfaces, container walls and photobioreactors for culturing phototrophic microorganisms, comprises placing liquid present in photobioreactor in vibration through resonant mechanical excitation</a> <b>[P]</b> . <span> 外国专利：  DE102012211883A1 </span> <span> . 2014-01-09</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：抑制用于培养光养微生物的光入口表面，容器壁和光生物反应器上的生物膜形成，包括通过共振机械激发使存在于光生物反应器中的液体振动。 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130479637231.html">Twin column elevating platform - has driven screw in one column with tensioned chain in other and spring loaded brake operated on chain breakage (SW 22.5.78)</a> <b>[P]</b> . <span> 外国专利：  DE2742961A1 </span> <span> . 1979-04-05</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：双柱升降平台-在一根柱中驱动螺杆，另一根中有张紧的链条，弹簧加载的制动器在链条断裂时工作（SW 22.5.78） </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130416643737.html">Extracts from Rheum palmatum using methanol for inhibition of biofilm formation of microbes</a> <b>[P]</b> . <span> 外国专利：  KR101447253B1 </span> <span> . 2014-10-08</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：使用甲醇从大黄提取物中抑制微生物的生物膜形成 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 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