Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3389/fpls.2017.02257 |
Seed Heteromorphism and Effects of Light and Abiotic Stress on Germination of a Typical Annual Halophyte Salsola ferganica in Cold Desert | |
Ma, Yali1,2,3; Wang, Juan2,4; Zhang, Jinghua2; Zhang, Shiyue2; Liu, Yanxia2; Lan, Haiyan2 | |
通讯作者 | Lan, Haiyan |
来源期刊 | FRONTIERS IN PLANT SCIENCE
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ISSN | 1664-462X |
出版年 | 2018 |
卷号 | 8 |
英文摘要 | Seed heteromorphism is a common characteristic of halophyte and an adaptation to the spatial and temporal variations of natural habitats. Differences in dormancy and germination requirements have been documented in heteromorphic seeds of many species, but the mechanisms for maintenance between different status in various populations have not been well-understood. Salsola ferganica is a typical annual halophyte in Chenopodiaceae distributed in cold desert, in the present study, we found that it could produce three distinct types of seed according to the shape and size of winged perianth (WP), which differed in dispersal ability, dormancy and germination behaviors. Our further investigation revealed that light could significantly promote germination of heteromorphic seeds of S. ferganica, and WP inhibited while GA(3) enhanced germination, which suggests that S. ferganica seeds possessed a photo-sensitive combined with morphological and non-deep physiological dormancy type, in which light was the dominant factor. Not like other desert plant species, the germinability of heteromorphic seeds of S. ferganica could not sustain for long (only 1-2 years), especially the small seeds, and was affected by storage time, temperature, salinity, even the environmental conditions of the maternal plant. Thus, the differences of characteristics existed among heteromorphic seeds and variations of heteromorphic ratio among different calendar years were presumed as diverse adaptation strategies integrated in the individual mother plant, and might apply important ecological significance for successful reproduction of the species in the unpredictable cold desert. |
英文关键词 | dormancy type germination light effect seed heteromorphism Salsola ferganica |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000422672900001 |
WOS关键词 | DIMORPHIC SEEDS ; POLYMORPHIC SEEDS ; MORPHOPHYSIOLOGICAL DORMANCY ; AFFINIS CHENOPODIACEAE ; REGULATING MECHANISMS ; ATRIPLEX-TRIANGULARIS ; TEMPERATURE ; SALINITY ; GROWTH ; DISPERSAL |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
来源机构 | 新疆大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/209464 |
作者单位 | 1.Xinjiang Univ, Coll Resource & Environm Sci, Urumqi, Peoples R China; 2.Xinjiang Univ, Xinjiang Key Lab Biol Resources & Genet Engn, Coll Life Sci & Technol, Urumqi, Peoples R China; 3.Xinjiang Educ Inst, Urumqi, Peoples R China; 4.Xinjiang Acad Agr Sci, Inst Econ Crops, Urumqi, Peoples R China |
推荐引用方式 GB/T 7714 | Ma, Yali,Wang, Juan,Zhang, Jinghua,et al. Seed Heteromorphism and Effects of Light and Abiotic Stress on Germination of a Typical Annual Halophyte Salsola ferganica in Cold Desert[J]. 新疆大学,2018,8. |
APA | Ma, Yali,Wang, Juan,Zhang, Jinghua,Zhang, Shiyue,Liu, Yanxia,&Lan, Haiyan.(2018).Seed Heteromorphism and Effects of Light and Abiotic Stress on Germination of a Typical Annual Halophyte Salsola ferganica in Cold Desert.FRONTIERS IN PLANT SCIENCE,8. |
MLA | Ma, Yali,et al."Seed Heteromorphism and Effects of Light and Abiotic Stress on Germination of a Typical Annual Halophyte Salsola ferganica in Cold Desert".FRONTIERS IN PLANT SCIENCE 8(2018). |
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