Immunolocalization of Endogenous Indole-3-Acetic Acid and Abscisic Acid in the Shoot Internodes of Fargesia yunnanensis Bamboo during Development
Wang, Shuguang1; Ma, Yongpeng2; Wan, Chengbin3; Hse, Chungyun4; Shupe, Todd F.5; Wang, Yujun6; Wang, Changming1
2016-11-01
发表期刊JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE
卷号141期号:6页码:563-572
摘要The Bambusoideae subfamily includes the fastest-growing plants worldwide, as a consequence of fast internode elongation. However, few studies have evaluated the temporal and spatial distribution of endogenous hormones during internode elongation. In this paper, endogenous indole-3-acetic acid (IAA) and abscisic acid (ABA) were detected in different developmental internodes during shoot elongation by immunolocalization. Immunohistochemistry showed that IAA was mainly present in the shoot apex, leaf sheath primordia, parenchymal cells, and vascular tissues. During internode elongation and maturation, the IAA signals decreased significantly and then increased slightly, with the weakest signals observed in the rapidly elongating internode. Based on immunogold localization, most IAA signals were detected in the cytoplasm and nuclei of both parenchymal and fiber cells, and few signals were detected in cell walls in the unelongated and elongating internodes. After the completion of internode elongation, additional IAA signals were detected in the secondary walls of both parenchymal and fiber cells. Immunohistochemical localization of ABA showed that ABA signals decreased with internode elongation and maturation, with the weakest signal observed in the internodes of 3-month-old shoots. In addition, few ABA signals were detected in the shoot apex. The strongest IAA and ABA signals in unelongated internodes suggested that both hormones participated in the mediation of internode differentiation but not in the rapid elongation. Moreover, IAA was involved in secondary cell wall deposition.
关键词Bamboo Shoot Internode Elongation Endogenous Hormone Immunolabeling
DOI10.21273/JASHS03814-16
收录类别SCI
语种英语
WOS记录号WOS:000391868300004
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/45640
专题中国科学院东亚植物多样性与生物地理学重点实验室
作者单位1.Southwest Forestry Univ, Coll Life Sci, Kunming 650224, Yunnan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
3.Southwest Forestry Univ, Coll Foreign Languages, Kunming 650224, Yunnan, Peoples R China
4.US Forest Serv, Southern Res Stn, USDA, Pineville, LA 71360 USA
5.Louisiana State Univ, Sch Renewable Natl Resources, Ctr Agr, Baton Rouge, LA 70803 USA
6.Nanjing Forestry Univ, Bamboo Res Inst, Nanjing 210037, Jiangsu, Peoples R China
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Wang, Shuguang,Ma, Yongpeng,Wan, Chengbin,et al. Immunolocalization of Endogenous Indole-3-Acetic Acid and Abscisic Acid in the Shoot Internodes of Fargesia yunnanensis Bamboo during Development[J]. JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE,2016,141(6):563-572.
APA Wang, Shuguang.,Ma, Yongpeng.,Wan, Chengbin.,Hse, Chungyun.,Shupe, Todd F..,...&Wang, Changming.(2016).Immunolocalization of Endogenous Indole-3-Acetic Acid and Abscisic Acid in the Shoot Internodes of Fargesia yunnanensis Bamboo during Development.JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE,141(6),563-572.
MLA Wang, Shuguang,et al."Immunolocalization of Endogenous Indole-3-Acetic Acid and Abscisic Acid in the Shoot Internodes of Fargesia yunnanensis Bamboo during Development".JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE 141.6(2016):563-572.
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