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北极和南极双星藻（双星藻纲，链形植物）菌株在形成前动孢子时脂质体的形成及脂肪酸组成的变化。

Formation of lipid bodies and changes in fatty acid composition upon pre-akinete formation in Arctic and Antarctic Zygnema (Zygnematophyceae, Streptophyta) strains.

作者信息

Pichrtová Martina, Arc Erwann, Stöggl Wolfgang, Kranner Ilse, Hájek Tomáš, Hackl Hubert, Holzinger Andreas

机构信息

Faculty of Science, Department of Botany, Charles University in Prague, Benátská 2, 128 01 Prague, Czech Republic

Institute of Botany, Functional Plant Biology, University of Innsbruck, Sternwartestraße 15, 6020 Innsbruck, Austria.

出版信息

FEMS Microbiol Ecol. 2016 Jul;92(7). doi: 10.1093/femsec/fiw096. Epub 2016 May 10.

DOI:10.1093/femsec/fiw096
PMID:27170362
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4892695/
Abstract

Filamentous green algae of the genus Zygnema (Zygnematophyceae, Streptophyta) are key components of polar hydro-terrestrial mats where they face various stressors including UV irradiation, freezing, desiccation and osmotic stress. Their vegetative cells can develop into pre-akinetes, i.e. reserve-rich, mature cells. We investigated lipid accumulation and fatty acid (FA) composition upon pre-akinete formation in an Arctic and an Antarctic Zygnema strain using transmission electron microscopy and gas chromatography coupled with mass spectrometry. Pre-akinetes formed after 9 weeks of cultivation in nitrogen-free medium, which was accompanied by massive accumulation of lipid bodies. The composition of FAs was similar in both strains, and α-linolenic acid (C18:3) dominated in young vegetative cells. Pre-akinete formation coincided with a significant change in FA composition. Oleic (C18:1) and linoleic (C18:2) acid increased the most (up to 17- and 8-fold, respectively). Small amounts of long-chain polyunsaturated FAs were also detected, e.g. arachidonic (C20:4) and eicosapentaenoic (C20:5) acid. Pre-akinetes exposed to desiccation at 86% relative humidity were able to recover maximum quantum yield of photosystem II, but desiccation had no major effect on FA composition. The results are discussed with regard to the capability of Zygnema spp. to thrive in extreme conditions.

摘要

双星藻属（双星藻科，链形植物门）的丝状绿藻是极地水陆交错带垫层的关键组成部分，在那里它们面临包括紫外线辐射、冰冻、干燥和渗透胁迫在内的各种压力源。它们的营养细胞可以发育成前厚壁孢子，即富含储备物质的成熟细胞。我们使用透射电子显微镜和气相色谱-质谱联用技术，研究了北极和南极双星藻菌株在前厚壁孢子形成过程中的脂质积累和脂肪酸（FA）组成。在无氮培养基中培养9周后形成了前厚壁孢子，同时伴随着脂质体的大量积累。两种菌株的脂肪酸组成相似，在年轻的营养细胞中，α-亚麻酸（C18:3）占主导地位。前厚壁孢子的形成与脂肪酸组成的显著变化同时发生。油酸（C18:1）和亚油酸（C18:2）增加最多（分别高达17倍和8倍）。还检测到少量长链多不饱和脂肪酸，例如花生四烯酸（C20:4）和二十碳五烯酸（C20:5）。在相对湿度86%的条件下暴露于干燥环境的前厚壁孢子能够恢复光系统II的最大量子产率，但干燥对脂肪酸组成没有重大影响。结合双星藻属在极端条件下茁壮成长的能力对结果进行了讨论。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/66de3ade3ca1/fiw096fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/b8e78b66b7a6/fiw096fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/87ddd02bf093/fiw096fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/6f46f07d12c8/fiw096fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/baac6aceba0b/fiw096fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/11672a9ddf66/fiw096fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/66de3ade3ca1/fiw096fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/b8e78b66b7a6/fiw096fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/87ddd02bf093/fiw096fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/6f46f07d12c8/fiw096fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/baac6aceba0b/fiw096fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/11672a9ddf66/fiw096fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/76e4/4892695/66de3ade3ca1/fiw096fig6.jpg

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本文引用的文献

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Biotechnol Adv. 2015 Nov 1;33(6 Pt 2):1204-18. doi: 10.1016/j.biotechadv.2015.04.012. Epub 2015 May 16.
2
Characterization of lipid and fatty acids composition of Chlorella zofingiensis in response to nitrogen starvation.响应氮饥饿的青岛大扁藻脂质和脂肪酸组成特征
J Biosci Bioeng. 2015 Aug;120(2):205-9. doi: 10.1016/j.jbiosc.2014.12.018. Epub 2015 Mar 14.
3
Nitrogen limitation and slow drying induce desiccation tolerance in conjugating green algae (Zygnematophyceae, Streptophyta) from polar habitats.
来自高山和沿海采集地点的陆生橘色藻属物种（绿藻纲）表现出很强的耐旱性以及对光照和温度的广泛适应性。
Protoplasma. 2023 Nov;260(6):1539-1553. doi: 10.1007/s00709-023-01866-2. Epub 2023 Jun 8.
4
Zygospores of the green alga : new insights from structural and chemical imaging.绿藻的接合孢子：来自结构和化学成像的新见解。
Front Plant Sci. 2022 Dec 6;13:1080111. doi: 10.3389/fpls.2022.1080111. eCollection 2022.
5
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6
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氮素限制和缓慢干燥诱导来自极地栖息地的接合绿藻（双星藻纲，链形植物）产生耐旱性。
PLoS One. 2014 Nov 14;9(11):e113137. doi: 10.1371/journal.pone.0113137. eCollection 2014.
4
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