Hydrogen Sulfide Promotes Root Organogenesis in Ipomoea batatas, Salix matsudana and Glycine max

查看全文 作　　者：Hua [1]Zhang;Jun [2]Tang;Xiao-Ping [3]Liu;Yun [1]Wang;Wei [1]Yu;Wei-Yan [1]Peng;Fang [1]Fang;Dai-Fu [2]Ma;Zhao-Jun [1]Wei;Lan-Ying [1]Hu

机构地区：[1]School of Biotechnology and Food Engineering, Hefei University of Technology, Hefei 230009, China;[2]Xuzhou Sweet Potato Research Center, Chinese Academy of Agricultural Sciences, National Sweet Potato Improvement Center, Xuzhou 221 121, China;[3]Anhui Academy of Agricultural Sciences, Hefei 230031, China

出　　处：《Journal of Integrative Plant Biology》索引2009年第51卷第12期,共9页

基　　金：Supported by the Great Project of the Natural Science Foundation from Anhui Provincial Education Department (ZD200910);the Natural Science Foundation of Anhui Province (070411009);the Innovation Funding to Undergraduate Students at HFUT (XS08072, 0637) 摘　　要：In this report, we demonstrate that sodium hydrosulfide (NaHS), a hydrogen sulfide (H2S) donor, promoted adventitious root formation mediated by auxin and nitric oxide (NO). Application of the H2S donor to seedling cuttings of sweet potato (Ipomoea batatas L.) promoted the number and length of adventitious roots in a dose-dependent manner. It was also verified that H2S or HS- rather than other sulfur-containing components derived from NaHS could be attributed to the stimulation of adventitious root formation. A rapid increase in endogenous H2S, indole acetic acid (IAA) and NO were sequentially observed in shoot tips of sweet potato seedlings treated with HaHS. Further investigation showed that H2S-mediated root formation was alleviated by N-1-naphthylphthalamic acid (NPA), an IAA transport inhibitor, and 2-(4-carboxyphenyl)- 4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (cPTIO), an NO scavenger. Similar phenomena in H2S donor-dependent root organogenesis were observed in both excised willow (Salix matsudana var. tortuosa Vilm) shoots and soybean (Glycine max L.) seedlings. These results indicated that the process of H2S-induced adventitious root formation was likely mediated by IAA and NO, and that H2S acts upstream of IAA and NO signal transduction pathways. 关键词：硫化氢甘薯器官甘氨酸不定根形成根系柳树一氧化氮

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Hydrogen Sulfide Promotes Root Organogenesis in Ipomoea batatas, Salix matsudana and Glycine max

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