{"id":2645,"date":"2020-11-11T15:05:14","date_gmt":"2020-11-11T15:05:14","guid":{"rendered":"http:\/\/jenaexperiment.uni-jena.de\/?p=2645"},"modified":"2020-11-11T16:40:30","modified_gmt":"2020-11-11T16:40:30","slug":"new-publication-from-ding-et-al-in-soil-biology-and-biochemistry","status":"publish","type":"post","link":"https:\/\/the-jena-experiment.de\/index.php\/2020\/11\/11\/new-publication-from-ding-et-al-in-soil-biology-and-biochemistry\/","title":{"rendered":"New publication from Ding et al. in Soil Biology and Biochemistry: Characteristics and origin of intact polar lipids in soil organic matter"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" src=\"\/wp-content\/uploads\/image-42.png\" alt=\"\" class=\"wp-image-2650\" width=\"391\" height=\"389\" srcset=\"\/wp-content\/uploads\/image-42.png 703w, \/wp-content\/uploads\/image-42-150x150.png 150w\" sizes=\"(max-width: 391px) 100vw, 391px\" \/><figcaption>Unconstrained PCA based on the <br>fractional abundances of intact polar lipid classes<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"justify\">Membrane lipids and their related acyl and\/or alkyl moieties are important biomarkers of the microbial community in environmental  samples. Intact polar lipids, which are described by their lipid head  groups and fatty acid tails, are major membrane components of living  cells only and may therefore provide information about the living soil  microbial community. However, the intact polar lipids in soil organic  matter may originate from non-microbial organisms (e.g., roots, soil  animals) as well as microorganisms. <\/p>\n\n\n\n<p class=\"justify\">We report on the profiles of more  than 300 membrane-derived intact polar lipids in grassland soil organic  matter from sites with diverse plant communities and soil properties.  The origin of the soil lipid profiles was deduced by comparisons with  the intact polar lipids of plant roots, amoebae, collembolans, fungi and  bacteria. In addition, we investigated the impact of plant and  soil-related drivers on the composition of the intact polar lipids in  soil organic matter. Soil organic matter lipid profiles were  considerably more diverse and evenly distributed than the profiles of  roots and soil organisms (amoebae, bacteria, collembolans and fungi).  Moreover, the lipid profiles in soil organic matter had more odd-carbon  numbered acyl and alkyl chains, ornithine lipids, and phospholipids with  low levels of unsaturation, possibly because they are of bacterial  origin. We suggest that most of the intact polar lipids in soil organic  matter (45\u201380%) were derived from bacteria, rather than plants, fungi,  or soil animals. The PE (31:0) and PE (32:1) lipids were considered as  biomarkers for all bacteria, whereas PE (29:0, 29:2 and 30:0) are  specific to Gram (+) bacteria and PG (33; 0, 34:1 and 36:2) and OL  (36:0, 37:0, 37:1, 39:1 and 39:2) were used to identify Gram (\u2212)  bacteria. Bacterial lipids were differentiated from intact lipids of  plant roots that typically contain MGDG (36:4) and MGDG (36:6), while  fungi have indicative markers of PC (36:4) and PE (36:4). Thus, intact  polar lipid profiles complement and advance other approaches, such as  fatty acid-based analysis of soil microbial community composition, and  may allow for analysis of soil food web structure. <\/p>\n\n\n\n<h4>Reference:<\/h4>\n\n\n\n<p> Ding, S., M. Lange, J. Lipp, V. F. Schwab, S. Chowdhury, M. M.  Pollierer, et al. 2020. Characteristics and origin of intact polar  lipids in soil organic matter. <em>Soil Biology and Biochemistry<\/em> <strong>151<\/strong>:108045. <a href=\"https:\/\/doi.org\/https:\/doi.org\/10.1016\/j.soilbio.2020.108045\">https:\/\/doi.org\/https:\/\/doi.org\/10.1016\/j.soilbio.2020.108045<\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Membrane lipids and their related acyl and\/or alkyl moieties are important biomarkers of the microbial community in environmental samples. Intact polar lipids, which are described by their lipid head groups&hellip;<\/p>\n","protected":false},"author":2,"featured_media":2650,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[15,13],"tags":[],"_links":{"self":[{"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/posts\/2645"}],"collection":[{"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/comments?post=2645"}],"version-history":[{"count":6,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/posts\/2645\/revisions"}],"predecessor-version":[{"id":2657,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/posts\/2645\/revisions\/2657"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/media\/2650"}],"wp:attachment":[{"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/media?parent=2645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/categories?post=2645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/the-jena-experiment.de\/index.php\/wp-json\/wp\/v2\/tags?post=2645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}