Hierachical epicuticular wax coverage on leaves of Deschampsia antarctica as a possible adaptation to severe environmental conditions
Using cryo scanning electron microscopy, the surface micromorphology of vegetative (leaf blade and ligule) and generative (pedicel and outer glume) organs in Deschampsia antarctica, one of the only two flowering plants native to Antarctica, was examined. Whereas the pedicel and outer glume were wax-...
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ftpubmed:oai:pubmedcentral.nih.gov:9443388 2023-05-15T13:41:54+02:00 Hierachical epicuticular wax coverage on leaves of Deschampsia antarctica as a possible adaptation to severe environmental conditions Gorb, Elena V Kozeretska, Iryna A Gorb, Stanislav N 2022-08-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9443388/ http://www.ncbi.nlm.nih.gov/pubmed/36105691 https://doi.org/10.3762/bjnano.13.71 en eng Beilstein-Institut http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9443388/ http://www.ncbi.nlm.nih.gov/pubmed/36105691 http://dx.doi.org/10.3762/bjnano.13.71 Copyright © 2022, Gorb et al. https://creativecommons.org/licenses/by/4.0/This is an open access article licensed under the terms of the Beilstein-Institut Open Access License Agreement (https://www.beilstein-journals.org/bjnano/terms/terms), which is identical to the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0 (https://creativecommons.org/licenses/by/4.0/) ). The reuse of material under this license requires that the author(s), source and license are credited. Third-party material in this article could be subject to other licenses (typically indicated in the credit line), and in this case, users are required to obtain permission from the license holder to reuse the material. CC-BY Beilstein J Nanotechnol Full Research Paper Text 2022 ftpubmed https://doi.org/10.3762/bjnano.13.71 2022-09-18T00:33:53Z Using cryo scanning electron microscopy, the surface micromorphology of vegetative (leaf blade and ligule) and generative (pedicel and outer glume) organs in Deschampsia antarctica, one of the only two flowering plants native to Antarctica, was examined. Whereas the pedicel and outer glume were wax-free, both leaf sides had a prominent epicuticular wax coverage consisting of two superimposed layers: polygonal rodlets formed by fused irregular platelets (the lower wax layer) and membraneous platelets (the upper wax layer). Although the adaxial (inner) and abaxial (outer) leaf surfaces showed a similar microstructure of the wax coverage, they differed in the thickness ratio between lower and upper wax layer. The ligule bore a very loose wax coverage composed of separate scale-like projections or clusters of them. We suppose that the two-layered wax densely covering both leaf surfaces might contribute to the plant adaptation to severe environmental conditions in Antarctica due to an increase of its resistance against cold temperatures, icing, harmful UV radiation, and dehydration. The presence of the epicuticular wax on the abaxial leaf side and the ligule as well as the hierarchical structure of the wax coverage on both leaf surfaces is described in D. antarctica for the first time. Text Antarc* Antarctica PubMed Central (PMC) Beilstein Journal of Nanotechnology 13 807 816 |
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Full Research Paper Gorb, Elena V Kozeretska, Iryna A Gorb, Stanislav N Hierachical epicuticular wax coverage on leaves of Deschampsia antarctica as a possible adaptation to severe environmental conditions |
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Full Research Paper |
description |
Using cryo scanning electron microscopy, the surface micromorphology of vegetative (leaf blade and ligule) and generative (pedicel and outer glume) organs in Deschampsia antarctica, one of the only two flowering plants native to Antarctica, was examined. Whereas the pedicel and outer glume were wax-free, both leaf sides had a prominent epicuticular wax coverage consisting of two superimposed layers: polygonal rodlets formed by fused irregular platelets (the lower wax layer) and membraneous platelets (the upper wax layer). Although the adaxial (inner) and abaxial (outer) leaf surfaces showed a similar microstructure of the wax coverage, they differed in the thickness ratio between lower and upper wax layer. The ligule bore a very loose wax coverage composed of separate scale-like projections or clusters of them. We suppose that the two-layered wax densely covering both leaf surfaces might contribute to the plant adaptation to severe environmental conditions in Antarctica due to an increase of its resistance against cold temperatures, icing, harmful UV radiation, and dehydration. The presence of the epicuticular wax on the abaxial leaf side and the ligule as well as the hierarchical structure of the wax coverage on both leaf surfaces is described in D. antarctica for the first time. |
format |
Text |
author |
Gorb, Elena V Kozeretska, Iryna A Gorb, Stanislav N |
author_facet |
Gorb, Elena V Kozeretska, Iryna A Gorb, Stanislav N |
author_sort |
Gorb, Elena V |
title |
Hierachical epicuticular wax coverage on leaves of Deschampsia antarctica as a possible adaptation to severe environmental conditions |
title_short |
Hierachical epicuticular wax coverage on leaves of Deschampsia antarctica as a possible adaptation to severe environmental conditions |
title_full |
Hierachical epicuticular wax coverage on leaves of Deschampsia antarctica as a possible adaptation to severe environmental conditions |
title_fullStr |
Hierachical epicuticular wax coverage on leaves of Deschampsia antarctica as a possible adaptation to severe environmental conditions |
title_full_unstemmed |
Hierachical epicuticular wax coverage on leaves of Deschampsia antarctica as a possible adaptation to severe environmental conditions |
title_sort |
hierachical epicuticular wax coverage on leaves of deschampsia antarctica as a possible adaptation to severe environmental conditions |
publisher |
Beilstein-Institut |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9443388/ http://www.ncbi.nlm.nih.gov/pubmed/36105691 https://doi.org/10.3762/bjnano.13.71 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Beilstein J Nanotechnol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9443388/ http://www.ncbi.nlm.nih.gov/pubmed/36105691 http://dx.doi.org/10.3762/bjnano.13.71 |
op_rights |
Copyright © 2022, Gorb et al. https://creativecommons.org/licenses/by/4.0/This is an open access article licensed under the terms of the Beilstein-Institut Open Access License Agreement (https://www.beilstein-journals.org/bjnano/terms/terms), which is identical to the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0 (https://creativecommons.org/licenses/by/4.0/) ). The reuse of material under this license requires that the author(s), source and license are credited. Third-party material in this article could be subject to other licenses (typically indicated in the credit line), and in this case, users are required to obtain permission from the license holder to reuse the material. |
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CC-BY |
op_doi |
https://doi.org/10.3762/bjnano.13.71 |
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807 |
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816 |
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