Developmentally controlled subcellular remodeling and VND-initiated vacuole-executed PCD module shape xylem-like cells in peat moss
Abstract Peat moss (Sphagnum) is a non-vascular higher plant with unique xylem-like hyaline (H) cells that are accompanied by photosynthetic chlorophyllous cells. These cellular structures play crucial roles in water storage and carbon sequestration. However, it is largely unknown how peat moss deve...
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Nature Portfolio
2024-10-01
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| Series: | Communications Biology |
| Online Access: | https://doi.org/10.1038/s42003-024-07003-w |
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| author | Ningjing Liu Qiuqi Guo Fangming Shi Lei Gao Yongqi Liu Yiwen Wang Zhiwei Gong Haoran Liu Yue Sun Bosheng Li Bing Ni Rui-Liang Zhu Qiong Zhao |
| author_facet | Ningjing Liu Qiuqi Guo Fangming Shi Lei Gao Yongqi Liu Yiwen Wang Zhiwei Gong Haoran Liu Yue Sun Bosheng Li Bing Ni Rui-Liang Zhu Qiong Zhao |
| author_sort | Ningjing Liu |
| collection | DOAJ |
| description | Abstract Peat moss (Sphagnum) is a non-vascular higher plant with unique xylem-like hyaline (H) cells that are accompanied by photosynthetic chlorophyllous cells. These cellular structures play crucial roles in water storage and carbon sequestration. However, it is largely unknown how peat moss develops the H cells. This study systematically explored the Sphagnum Developmental Cell Atlas and Lineage and classified leaf cell development into two lineages with six stages (S0-S5) based on changes in key cellular traits, including the formation of spiral secondary cell walls (S4) and the presence of water pores (S5). Cell lineage-specific subcellular remodeling was transcriptionally regulated during leaf development, and vacuole-mediated clearance of organelles and cell death led to mature dead H cells. Interestingly, expression of land plant conserved Vascular-related NAC Domain (VND) genes correlated with H cell formation. Overall, these results suggest that the origination of xylem-like H cells is related to VND, likely through the neofunctionalization of vacuole-mediated cell death to attempt xylem formation in peat moss, suggesting potential uncoupling of xylem and phloem cell origins. This study positions peat moss as a potential model organism for studying integrative evolutionary cell biology. |
| format | Article |
| id | doaj-art-cfc82f5cc0cd4fb9827d9526644f0991 |
| institution | OA Journals |
| issn | 2399-3642 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Biology |
| spelling | doaj-art-cfc82f5cc0cd4fb9827d9526644f09912025-08-20T02:17:46ZengNature PortfolioCommunications Biology2399-36422024-10-017111210.1038/s42003-024-07003-wDevelopmentally controlled subcellular remodeling and VND-initiated vacuole-executed PCD module shape xylem-like cells in peat mossNingjing Liu0Qiuqi Guo1Fangming Shi2Lei Gao3Yongqi Liu4Yiwen Wang5Zhiwei Gong6Haoran Liu7Yue Sun8Bosheng Li9Bing Ni10Rui-Liang Zhu11Qiong Zhao12School of Life Sciences, East China Normal UniversitySchool of Life Sciences, East China Normal UniversitySchool of Life Sciences, East China Normal UniversityThe IDG/McGovern Institute for Brain Research, School of Life Sciences, Tsinghua UniversityPeking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agriculture Sciences in WeifangSchool of Life Sciences, East China Normal UniversitySchool of Life Sciences, East China Normal UniversitySchool of Life Sciences, East China Normal UniversitySchool of Life Sciences, East China Normal UniversityPeking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agriculture Sciences in WeifangSchool of Life Sciences, East China Normal UniversitySchool of Life Sciences, East China Normal UniversitySchool of Life Sciences, East China Normal UniversityAbstract Peat moss (Sphagnum) is a non-vascular higher plant with unique xylem-like hyaline (H) cells that are accompanied by photosynthetic chlorophyllous cells. These cellular structures play crucial roles in water storage and carbon sequestration. However, it is largely unknown how peat moss develops the H cells. This study systematically explored the Sphagnum Developmental Cell Atlas and Lineage and classified leaf cell development into two lineages with six stages (S0-S5) based on changes in key cellular traits, including the formation of spiral secondary cell walls (S4) and the presence of water pores (S5). Cell lineage-specific subcellular remodeling was transcriptionally regulated during leaf development, and vacuole-mediated clearance of organelles and cell death led to mature dead H cells. Interestingly, expression of land plant conserved Vascular-related NAC Domain (VND) genes correlated with H cell formation. Overall, these results suggest that the origination of xylem-like H cells is related to VND, likely through the neofunctionalization of vacuole-mediated cell death to attempt xylem formation in peat moss, suggesting potential uncoupling of xylem and phloem cell origins. This study positions peat moss as a potential model organism for studying integrative evolutionary cell biology.https://doi.org/10.1038/s42003-024-07003-w |
| spellingShingle | Ningjing Liu Qiuqi Guo Fangming Shi Lei Gao Yongqi Liu Yiwen Wang Zhiwei Gong Haoran Liu Yue Sun Bosheng Li Bing Ni Rui-Liang Zhu Qiong Zhao Developmentally controlled subcellular remodeling and VND-initiated vacuole-executed PCD module shape xylem-like cells in peat moss Communications Biology |
| title | Developmentally controlled subcellular remodeling and VND-initiated vacuole-executed PCD module shape xylem-like cells in peat moss |
| title_full | Developmentally controlled subcellular remodeling and VND-initiated vacuole-executed PCD module shape xylem-like cells in peat moss |
| title_fullStr | Developmentally controlled subcellular remodeling and VND-initiated vacuole-executed PCD module shape xylem-like cells in peat moss |
| title_full_unstemmed | Developmentally controlled subcellular remodeling and VND-initiated vacuole-executed PCD module shape xylem-like cells in peat moss |
| title_short | Developmentally controlled subcellular remodeling and VND-initiated vacuole-executed PCD module shape xylem-like cells in peat moss |
| title_sort | developmentally controlled subcellular remodeling and vnd initiated vacuole executed pcd module shape xylem like cells in peat moss |
| url | https://doi.org/10.1038/s42003-024-07003-w |
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