The Response of Spore Germination of <i>Sphagnum</i> Mosses to Single and Combined Fire-Related Cues
Plants in flammable ecosystems have different response strategies to fire, such as increasing germination after exposure to smoke and break of dormancy through heat shock. Peatlands are ecosystems that are more likely to be disturbed by fire with increasing temperatures, but it is not clear how fire...
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MDPI AG
2022-02-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/11/4/485 |
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| author | Shuayib Yusup Sebastian Sundberg Beibei Fan Mamtimin Sulayman Zhao-Jun Bu |
| author_facet | Shuayib Yusup Sebastian Sundberg Beibei Fan Mamtimin Sulayman Zhao-Jun Bu |
| author_sort | Shuayib Yusup |
| collection | DOAJ |
| description | Plants in flammable ecosystems have different response strategies to fire, such as increasing germination after exposure to smoke and break of dormancy through heat shock. Peatlands are ecosystems that are more likely to be disturbed by fire with increasing temperatures, but it is not clear how fire affects spore germination of <i>Sphagnum</i>, the dominant plants in peatlands. Here, we hypothesize that <i>Sphagnum</i> spores respond positively to single and combined treatments of moderate heat and smoke (by increased germinability), while spore germinability decreases in response to high temperature. We exposed the <i>Sphagnum</i> spores of four selected species (<i>S. angustifolium</i>, <i>S. fuscum</i>, <i>S. magellanicum</i> and <i>S. squarrosum</i>) collected from peatlands in the Changbai Mountains to heat (40, 60 and 100 °C), on its own and combined with smoke-water treatments. Our results showed that a heat of 100 °C inhibited the spore germination or even killed spores of all species, while spore germination of three (<i>Sphagnum</i><i>angustifolium</i>, <i>S. fuscum</i> and <i>S. squarrosum</i>) of the four species was promoted by 40 and 60 °C heat compared to the control (20 °C). Hollow species (<i>S. angustifolium</i> and <i>S. squarrosum</i>) showed a stronger positive responsive to heat than hummock species (<i>S. fuscum</i> and <i>S. magellanicum</i>). <i>Sphagnum</i><i>fuscum</i> spores responded positively to the combined heat and smoke treatment while the other species did not. For the first time, we demonstrate the positive effects of heat on its own and in combination with smoke on spore germination in wetland mosses, which may be important for the establishment and persistence of peatmoss populations after fire. |
| first_indexed | 2024-03-09T21:13:16Z |
| format | Article |
| id | doaj.art-b216a80c1e124dc2a367ca609b6a1bba |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-09T21:13:16Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
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| series | Plants |
| spelling | doaj.art-b216a80c1e124dc2a367ca609b6a1bba2023-11-23T21:42:09ZengMDPI AGPlants2223-77472022-02-0111448510.3390/plants11040485The Response of Spore Germination of <i>Sphagnum</i> Mosses to Single and Combined Fire-Related CuesShuayib Yusup0Sebastian Sundberg1Beibei Fan2Mamtimin Sulayman3Zhao-Jun Bu4Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Renmin 5268, Changchun 130024, ChinaState Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Institute for Peat and Mire Research, Northeast Normal University, Renmin 5268, Changchun 130024, ChinaKey Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Renmin 5268, Changchun 130024, ChinaXinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, ChinaKey Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Renmin 5268, Changchun 130024, ChinaPlants in flammable ecosystems have different response strategies to fire, such as increasing germination after exposure to smoke and break of dormancy through heat shock. Peatlands are ecosystems that are more likely to be disturbed by fire with increasing temperatures, but it is not clear how fire affects spore germination of <i>Sphagnum</i>, the dominant plants in peatlands. Here, we hypothesize that <i>Sphagnum</i> spores respond positively to single and combined treatments of moderate heat and smoke (by increased germinability), while spore germinability decreases in response to high temperature. We exposed the <i>Sphagnum</i> spores of four selected species (<i>S. angustifolium</i>, <i>S. fuscum</i>, <i>S. magellanicum</i> and <i>S. squarrosum</i>) collected from peatlands in the Changbai Mountains to heat (40, 60 and 100 °C), on its own and combined with smoke-water treatments. Our results showed that a heat of 100 °C inhibited the spore germination or even killed spores of all species, while spore germination of three (<i>Sphagnum</i><i>angustifolium</i>, <i>S. fuscum</i> and <i>S. squarrosum</i>) of the four species was promoted by 40 and 60 °C heat compared to the control (20 °C). Hollow species (<i>S. angustifolium</i> and <i>S. squarrosum</i>) showed a stronger positive responsive to heat than hummock species (<i>S. fuscum</i> and <i>S. magellanicum</i>). <i>Sphagnum</i><i>fuscum</i> spores responded positively to the combined heat and smoke treatment while the other species did not. For the first time, we demonstrate the positive effects of heat on its own and in combination with smoke on spore germination in wetland mosses, which may be important for the establishment and persistence of peatmoss populations after fire.https://www.mdpi.com/2223-7747/11/4/485spore germinabilityfire disturbancepersistencegermination cue |
| spellingShingle | Shuayib Yusup Sebastian Sundberg Beibei Fan Mamtimin Sulayman Zhao-Jun Bu The Response of Spore Germination of <i>Sphagnum</i> Mosses to Single and Combined Fire-Related Cues Plants spore germinability fire disturbance persistence germination cue |
| title | The Response of Spore Germination of <i>Sphagnum</i> Mosses to Single and Combined Fire-Related Cues |
| title_full | The Response of Spore Germination of <i>Sphagnum</i> Mosses to Single and Combined Fire-Related Cues |
| title_fullStr | The Response of Spore Germination of <i>Sphagnum</i> Mosses to Single and Combined Fire-Related Cues |
| title_full_unstemmed | The Response of Spore Germination of <i>Sphagnum</i> Mosses to Single and Combined Fire-Related Cues |
| title_short | The Response of Spore Germination of <i>Sphagnum</i> Mosses to Single and Combined Fire-Related Cues |
| title_sort | response of spore germination of i sphagnum i mosses to single and combined fire related cues |
| topic | spore germinability fire disturbance persistence germination cue |
| url | https://www.mdpi.com/2223-7747/11/4/485 |
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