Narboh D, a Respiratory Burst Oxidase Homolog in Nicotiana attenuata, is Required for Late Defense Responses After Herbivore Attack
Wu, Jinsong1; Wang, Lei1; Wuensche, Hendrik; Baldwin, Ian T.2
2013-02-01
发表期刊JOURNAL OF INTEGRATIVE PLANT BIOLOGY
ISSN1672-9072
卷号55期号:2页码:187-198
摘要The superoxide (O-2(-))-generating NADPH oxidases are crucial for the defense of plants against attack from pathogens; however, it remains unknown whether they also mediate responses against chewing insect herbivores. The transcripts of the respiratory burst NADPH oxidase homolog Narboh D in Nicotiana attenuate are rapidly and transiently elicited by wounding, and are amplified when Manduca sexta oral secretions (OS) are added to the wounds. The fatty-acid-amino-acid-conjugates (FACs), demonstrably the major elicitors in M. sexta OS, are responsible for the increase in Narboh D transcripts. Silencing Narboh D significantly reduced reactive oxygen species (ROS) levels after OS elicitation, but neither OS-elicited jasmonic acid (JA) or JA-isoleucine (JA-Ile) bursts, pivotal hormones that regulates plant resistance to herbivores, nor early transcripts of herbivore defense-related genes (NaJAR4 and NaPAL1), were influenced. However, late OS-elicited increases in trypsin proteinase inhibitors (TPIs), as well as the transcript levels of defense genes such as polyphenol oxidase, TPI and Thionin were significantly reduced. In addition, Narboh D-silenced plants were more vulnerable to insect herbivores, especially the larvae of the generalist Spodoptera littoralis. We thus conclude that Narboh D-based defenses play an important role in late herbivore-elicited responses.
关键词Nicotiana Attenuata Narboh d Manduca Sexta Spodoptera Littoralis
资助信息Helmholtz Association of German Research Centres; Max Planck Society
学科领域Biochemistry & Molecular Biology ; Plant Sciences
收录类别SCI
语种英语
WOS研究方向Biochemistry & Molecular Biology ; Plant Sciences
WOS类目Biochemistry & Molecular Biology ; Plant Sciences
WOS记录号WOS:000318601700006
引用统计
被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/16611
专题资源植物与生物技术所级重点实验室
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Beijing 100864, Peoples R China
2.Max Planck Inst Chem Ecol, Dept Mol Ecol, D-07745 Jena, Germany
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Wu, Jinsong,Wang, Lei,Wuensche, Hendrik,et al. Narboh D, a Respiratory Burst Oxidase Homolog in Nicotiana attenuata, is Required for Late Defense Responses After Herbivore Attack[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2013,55(2):187-198.
APA Wu, Jinsong,Wang, Lei,Wuensche, Hendrik,&Baldwin, Ian T..(2013).Narboh D, a Respiratory Burst Oxidase Homolog in Nicotiana attenuata, is Required for Late Defense Responses After Herbivore Attack.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,55(2),187-198.
MLA Wu, Jinsong,et al."Narboh D, a Respiratory Burst Oxidase Homolog in Nicotiana attenuata, is Required for Late Defense Responses After Herbivore Attack".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 55.2(2013):187-198.
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