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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2009.12.006
|2 doi
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|e rakwb
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|a eng
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|a Yang, Xuejun
|e verfasserin
|4 aut
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|a Role of mucilage in the germination of Artemisia sphaerocephala (Asteraceae) achenes exposed to osmotic stress and salinity
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 01.09.2010
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright 2009 Elsevier Masson SAS. All rights reserved.
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|a Artemisia sphaerocephala (Asteraceae) is one of the pioneer species in moving and semi-stable sand dunes in the deserts of northwest China. The outer surface of A. sphaerocephala achenes contains a pectinaceous mucilage layer that can imbibe a large amount of water when wetted. We hypothesized that the mucilage can aid achene germination in heterogeneous environments. Germination of both intact achenes and those from which the mucilage had been removed (demucilaged) declined with increasing osmotic potential and NaCl concentration. However, the germination percentage of intact achenes was significantly higher than that of demucilaged achenes. The early seedling growth of intact achenes did not differ significantly from that of demucilaged achenes in either osmotic potential or NaCl solutions. Achene mucilage presumably plays an ecologically important role in the life cycle of A. sphaerocephala by aiding germination in osmotically- and saline-stressful habitats of the cold desert environment
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Glycoproteins
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|a Plant Proteins
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|a Polysaccharides
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|a Water
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|a Dong, Ming
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|a Huang, Zhenying
|e verfasserin
|4 aut
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 48(2010), 2-3 vom: 15. Feb., Seite 131-5
|w (DE-627)NLM098178261
|x 1873-2690
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|g volume:48
|g year:2010
|g number:2-3
|g day:15
|g month:02
|g pages:131-5
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