Comparative Physiological and Proteomic Analysis Reveals the Leaf Response to Cadmium-Induced Stress in Poplar (Populus yunnanensis)
Yang,Yunqiang; Li,Xiong; Yang,Shihai; Zhou,Yanli; Dong,Chao; Ren,Jian; Sun,Xudong; Yang,Yongping
2015-09-08
Source PublicationPLOS ONE
Volume10Issue:9
AbstractExcess amounts of heavy metals are important environmental pollutants with significant ecological and nutritional effects. Cdmium (Cd) is of particular concern because of its widespread occurrence and high toxicity. We conducted physiological and proteomic analyses to improve our understanding of the responses of Populus yunnanensis to Cd stress. The plantlets experienced two apparent stages in their response to Cd stress. During the first stage, transiently induced defense-response molecules, photosynthesis-and energy-associated proteins, antioxidant enzymes and heat shock proteins (HSPs) accumulated to enhance protein stability and establish a new cellular homeostasis. This activity explains why plant photosynthetic capability during this period barely changed. During the second stage, a decline of ribulose-1, 5-bisphosphate carboxylase (RuBisCO) and HSP levels led to imbalance of the plant photosynthetic system. Additionally, the expression of Mitogen-activated protein kinase 3 (MPK3), Mitogen-activated protein kinase 6 (MPK6) and a homeobox-leucine zipper protein was higher in the second stage. Higher expression of caffeoyl-CoA O-methyltransferase (CCoAOMT) may regulate plant cell wall synthesis for greater Cd storage. These genes may be candidates for further research and use in genetic manipulation of poplar tolerance to Cd stress.
DOI10.1371/journal.pone.0137396
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000360897600043
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Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/25130
Collection中国科学院东亚植物多样性与生物地理学重点实验室
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GB/T 7714
Yang,Yunqiang,Li,Xiong,Yang,Shihai,et al. Comparative Physiological and Proteomic Analysis Reveals the Leaf Response to Cadmium-Induced Stress in Poplar (Populus yunnanensis)[J]. PLOS ONE,2015,10(9).
APA Yang,Yunqiang.,Li,Xiong.,Yang,Shihai.,Zhou,Yanli.,Dong,Chao.,...&Yang,Yongping.(2015).Comparative Physiological and Proteomic Analysis Reveals the Leaf Response to Cadmium-Induced Stress in Poplar (Populus yunnanensis).PLOS ONE,10(9).
MLA Yang,Yunqiang,et al."Comparative Physiological and Proteomic Analysis Reveals the Leaf Response to Cadmium-Induced Stress in Poplar (Populus yunnanensis)".PLOS ONE 10.9(2015).
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