兰州大学机构库 >生命科学学院
Hydrogen peroxide involvement in formation and development of adventitious roots in cucumber
Li, SW; Xue, LG; Xu, SJ; Feng, HY(冯虎元); An, LZ(安黎哲); Feng, HY (reprint author), Lanzhou Univ, Key Lab Arid & Grassland Ecol, Minist Educ, Sch Life Sci, 222 Tianshui S Rd, Lanzhou 730000, Gansu, Peoples R China.
收录类别SCIE ; EI ; BIOSIS
2007-06
发表期刊PLANT GROWTH REGULATION
卷号52期号:2页码:173-180
出版者SPRINGER
出版地DORDRECHT
摘要Hydrogen peroxide (H2O2), an active oxygen species, is widely generated in many biological systems. The present study demonstrates that H2O2 was generated in seedling explants after the primary roots were removed, and it mediates the auxin response prior to adventitious root formation in cucumber (Cucumis sativus L. Ganfeng 8). When compared with the controls, treatment of cucumber seedling explants after primary roots removal with either 20-40 mM H2O2 or 10 mu M IAA significantly increased the number of adventitious roots, and treatment with 10-50 mM H2O2 significantly increased the fresh weight of adventitious roots. The effects of H2O2 on promoting the formation and growth of adventitious roots were eliminated by 2 mM ascorbic acid, 100 U CAT or 1 mu M DPI, and the effects of IAA were eliminated by 4 mM ascorbic acid, 100 U CAT or 5 mu M DPI. Treatment with either 4 mM ascorbic acid or 1-5 mu M DPI inhibited the formation and growth of adventitious roots, and these inhibitory effects were partly reversed by exogenous H2O2.Furthermore, a higher concentration of endogenous H2O2 was detected in seedling explants 3 h after the primary roots were removed. However, in 10 mu M DPI-treated seedling explants, the concentration of endogenous H2O2 was markedly reduced by DPI. Results obtained suggest that H2O2 may function as a signaling molecule, involved in the formation and development of adventitious roots in cucumber.
关键词Hydrogen Peroxide Signaling Adventitious Roots Cucumber Cucumis Sativus l
作者部门Lanzhou Univ, Key Lab Arid & Grassland Ecol, Minist Educ, Sch Life Sci, Lanzhou 730000, Gansu, Peoples R China;
Lanzhou Jiaotong Univ, Sch Chem & Biol Engn, Lanzhou 730070, Gansu, Peoples R China
学科领域Plant Sciences
DOI10.1007/s10725-007-9188-9
ISSN0167-6903
文章类型Article
语种英语
WOS记录号WOS:000247259500008
EI记录号20072610670436
BIOSIS记录号BIOSIS:PREV200700455176
第一机构
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文献类型期刊论文
条目标识符http://ir.lzu.edu.cn/handle/262010/114478
Collection生命科学学院
通讯作者Feng, HY (reprint author), Lanzhou Univ, Key Lab Arid & Grassland Ecol, Minist Educ, Sch Life Sci, 222 Tianshui S Rd, Lanzhou 730000, Gansu, Peoples R China.
Recommended Citation:
GB/T 7714
Li, SW,Xue, LG,Xu, SJ,et al. Hydrogen peroxide involvement in formation and development of adventitious roots in cucumber[J]. PLANT GROWTH REGULATION,2007,52(2):173-180.
APA Li, SW,Xue, LG,Xu, SJ,Feng, HY,An, LZ,&Feng, HY .(2007).Hydrogen peroxide involvement in formation and development of adventitious roots in cucumber.PLANT GROWTH REGULATION,52(2),173-180.
MLA Li, SW,et al."Hydrogen peroxide involvement in formation and development of adventitious roots in cucumber".PLANT GROWTH REGULATION 52.2(2007):173-180.
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