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题名: CHITOSAN OLIGOSACCHARIDES-TRIGGERED INNATE IMMUNITY CONTRIBUTES TO OILSEED RAPE RESISTANCE AGAINST SCLEROTINIA SCLEROTIORUM
作者: Yin, Heng1, 2;  Li, Yan3;  Zhang, Hong-Yan1;  Wang, Wen-Xia1;  Lu, Hang1;  Grevsen, Kai2;  Zhao, Xiaoming1;  Du, Yuguang1
关键词: Chitosan oligosaccharides ;  Brassica napus ;  Sclerotinia sclerotiorum ;  plant immunity ;  elicitor
刊名: INTERNATIONAL JOURNAL OF PLANT SCIENCES
发表日期: 2013-05-01
DOI: 10.1086/669721
卷: 174, 期:4, 页:722-732
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Plant Sciences
研究领域[WOS]: Plant Sciences
英文摘要: Chitosan oligosaccharides (collectively, oligochitosan, or COS) are considered to be potent plant immunity elicitors. In this article, the induction of resistance to Sclerotinia sclerotiorum in Brassica napus L. var. Huyou 15 by COS is studied. Even though COS (50 mu g mL(-1)) did not affect radial growth of this pathogen in vitro, it reduced the disease symptoms in vivo relative to control plants. The disease control rates were 25.8%, 41.4%, 57.1%, 68.7%, and 48.8% with COS pretreatment 0, 24, 48, 72, and 96 h before S. sclerotiorum inoculation, respectively. Specific binding of COS to B. napus epidermis cells was validated by competition experiments. Simultaneously, it was observed that COS induced bursts of cytosolic Ca2+, nitric oxide (NO), and hydrogen peroxide (H2O2). NO and H2O2 inhibitors were used to prove the interaction between NO and H2O2. Furthermore, treatments of B. napus with NO and H2O2 inhibitors reduced the induction effect of the jasmonic acid-ethylene (JA/ET) signaling marker BnPDF1.2 by COS, indicating that NO and H2O2 participate in COS-induced JA/ET signaling. In conclusion, this article provides a comprehensive study of the effect and mechanism of COS-induced resistance to S. sclerotiorum in B. napus.
关键词[WOS]: FUSARIUM-SOLANI INTERACTIONS ;  NITRIC-OXIDE ;  CELL-DEATH ;  DISEASE RESISTANCE ;  MOLECULAR-PATTERNS ;  DEFENSE RESPONSES ;  PLANT IMMUNITY ;  ELICITORS ;  ARABIDOPSIS ;  CALCIUM
语种: 英语
WOS记录号: WOS:000317749900009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137802
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Liaoning Prov Key Lab Carbohydrates, Dalian 116023, Peoples R China
2.Aarhus Univ, Fac Sci & Technol, Dept Food Sci, DK-5792 Aarslev, Denmark
3.Liaoning Normal Univ, Coll Life Sci, Dalian 116029, Peoples R China

Recommended Citation:
Yin, Heng,Li, Yan,Zhang, Hong-Yan,et al. CHITOSAN OLIGOSACCHARIDES-TRIGGERED INNATE IMMUNITY CONTRIBUTES TO OILSEED RAPE RESISTANCE AGAINST SCLEROTINIA SCLEROTIORUM[J]. INTERNATIONAL JOURNAL OF PLANT SCIENCES,2013,174(4):722-732.
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