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题名: Comparison of ultrastructural and physiological changes of potato (Solanum tuberosum L.) plantlets subjected to salt and modeling drought stresses
作者: Bai, JP; Gao, HJ; Yang, HY; Lou, Y; Zhang, JL(张金林); Wang, D; Zhang, JL(张金林)
收录类别: SCIE
出版日期: 2016-06
刊名: ACTA PHYSIOLOGIAE PLANTARUM
卷号: 38, 期号:7
出版者: SPRINGER
出版地: HEIDELBERG
英文摘要: Salinity and drought are two severe abiotic stresses that affect plant growth and decrease food production worldwide. Compared to the field plants, test-tube plantlets could be more direct and fast to investigate the mechanism of stress adaptation. In the present study, the ultrastructural and physiological differences of potato (Solanum tuberosum L. c.v. "Longshu No. 3'') plantlets in response to the gradient saline (0, 25, 50, 100, and 200 mM NaCl) and the modeling drought stresses with polyethylene glycol (PEG) at the concentrations of 0, 2, 4, 6, and 8 % were analyzed. The results show that the severe salt (200 mM NaCl) and the modeling drought stresses (8 % PEG) inhibited the plantlet growth. There are considerable differences in their ultrastructural alteration under salt and modeling drought adaptation: PEG caused the increase in the number of stacked chloroplast, plastoglobuli, and starch; NaCl induced the decrease in the number of chloroplast and plastoglobuli. Moreover, plantlet has higher free proline content, less malondialdehyde (MDA) content, and higher activities of catalase (CAT) and superoxide dismutase (SOD) under the gradient NaCl treatments than the gradient PEG treatments. The results of this study will provide theoretical and practical insights into characterizing the ultrastructural and physiological differences of plants adapting to various stressful environments.
关键词: Potato plantlets ; Salt stress ; Modeling drought stress ; Ultrastructure ; Physiological responses
作者部门: [Bai, Jiang-Ping ; Gao, Hui-Juan ; Yang, Hong-Yu ; Lou, Yan ; Zhang, Jun-Lian ; Wang, Di] Gansu Agr Univ, Coll Agron, Gansu Key Labs Crop Genet & Germplasm Enhancement, 1 Yingmen Village, Lanzhou 730070, Gansu, Peoples R China ; [Gao, Hui-Juan ; Zhang, Jun-Lian ; Zhang, Jin-Lin] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, 768 West Jiayuguan Rd, Lanzhou 730020, Gansu, Peoples R China
通讯作者: Bai, JP ; Zhang, JL (reprint author), Gansu Agr Univ, Coll Agron, Gansu Key Labs Crop Genet & Germplasm Enhancement, 1 Yingmen Village, Lanzhou 730070, Gansu, Peoples R China. ; Zhang, JL (reprint author), Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, 768 West Jiayuguan Rd, Lanzhou 730020, Gansu, Peoples R China.
学科分类: Plant Sciences
文章类型: Article
所属项目编号: Program for Changjiang Scholars and Innovative Research Team in University [IRT13019] ; National Natural Science Foundation of China [31222053, 31460369] ; International Science and Technology Cooperation Program of China [2014DFG31570]
所属项目名称: 国家自然科学基金项目 ; 国家国际科技合作专项 ; 长江学者和创新团队发展计划
项目资助者: NSFC ; MOST ; MOE
语种: 英语
DOI: 10.1007/s11738-016-2202-y
ISSN号: 0137-5881
WOS记录号: WOS:000378940500021
IR记录号: WOS:000378940500021
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/179256
Appears in Collections:草地农业科技学院_期刊论文

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Recommended Citation:
Bai, JP,Gao, HJ,Yang, HY,et al. Comparison of ultrastructural and physiological changes of potato (Solanum tuberosum L.) plantlets subjected to salt and modeling drought stresses[J]. ACTA PHYSIOLOGIAE PLANTARUM,2016,38(7).
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