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Germination, osmotic adjustment, and antioxidant enzyme activities of gibberellin-pretreated Picea asperata seeds under water stress
Yang, Y.1,2,3; Liu, Q.1; Wang, G. X.2,3; Wang, X. D.2,3; Guo, J. Y.2,3,4
Corresponding AuthorLiu, Q
2010
Source PublicationNEW FORESTS
ISSN0169-4286
EISSN1573-5095
Volume39Issue:2Pages:231-243
SubtypeArticle
AbstractGermination of dragon spruce (Picea asperata Mast.) seeds pretreated with gibberellin (GA) in response to water stress and changes in the levels of osmotic adjustments as well as in activities of antioxidant enzymes were investigated. With decreasing water potential caused by increasing concentrations of PEG 6000, germination percentage and germination index decreased gradually; the decrease was especially prominent under the serious water stress from PEG -0.6 MPa. In contrast, osmotic regulation substances (free proline and soluble sugar contents), lipid peroxidation (MDA), and activities of antioxidant enzyme (ascorbate peroxidase, catalase, and peroxidase) increased markedly with decreased water potential. Similarly, the values in all parameters under -0.6 MPa PEG treatment were markedly higher than the control and -0.2 MPa PEG treatment. These results suggested that P. asperata seed germination was insensitive to water stress. In addition, seeds pretreated with GA had increased tolerance to water stress as measured by germination percentage and germination index, osmotic regulation substance, and antioxidant enzyme activities.
KeywordAntioxidant Enzymes Germination Gibberellin Osmotic Adjustment Water Stress
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11056-009-9167-2
WOS Subject ExtendedForestry
Indexed BySCI
WOS KeywordPOLYETHYLENE-GLYCOL ; ACTIVE OXYGEN ; TEMPERATURE ; DEFICIT ; PLANTS ; GROWTH ; ASCORBATE ; RESPONSES ; DROUGHT ; FOREST
Language英语
Quartile4区
TOP
WOS SubjectForestry
WOS IDWOS:000274548700008
Funding OrganizationNational Natural Science Foundation of China(30530630) ; Chinese Academy of Sciences(KZCX2-YW-331-2) ; National Science and Technology(2007BAC06B08)
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5607
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Chengdu Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China
4.Leshan Teachers Coll, Leshan 614000, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Yang, Y.,Liu, Q.,Wang, G. X.,et al. Germination, osmotic adjustment, and antioxidant enzyme activities of gibberellin-pretreated Picea asperata seeds under water stress[J]. NEW FORESTS,2010,39(2):231-243.
APA Yang, Y.,Liu, Q.,Wang, G. X.,Wang, X. D.,&Guo, J. Y..(2010).Germination, osmotic adjustment, and antioxidant enzyme activities of gibberellin-pretreated Picea asperata seeds under water stress.NEW FORESTS,39(2),231-243.
MLA Yang, Y.,et al."Germination, osmotic adjustment, and antioxidant enzyme activities of gibberellin-pretreated Picea asperata seeds under water stress".NEW FORESTS 39.2(2010):231-243.
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