Arid
DOI10.3389/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
ISSN1664-462X
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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