Hydrogen peroxide mediates defence responses induced by chitosans of different molecular weights in rice
文献类型：期刊论文
| 作者 | Lin, WL; Hu, XY; Zhang, WQ; Rogers, WJ; Cai, WM |
| 刊名 | Journal of plant physiology
 |
| 出版日期 | 2005-08-01 |
| 卷号 | 162期号:8页码:937-944 |
| 关键词 | Chn Defence response H2o2 Rice |
| ISSN号 | 0176-1617 |
| DOI | 10.1016/j.jplph.2004.10.003 |
| 通讯作者 | Cai, wm() |
| 英文摘要 | To investigate the mechanisms whereby treatment with chitosan (chn) is observed to increase the capacity of plants to resist pathogens, chns of different molecular weights (mws) prepared by enzyme hydrolysis were used to treat rice cells in suspension culture and also rice seedlings. the results obtained with cultured cells showed that in this material chn treatment could trigger a set of defence responses, including the production of hydrogen peroxide (h2o2), increases in the activities of phenylalanine ammonialyase (pal; ec 4.3.1.5) and chitinase (chi; ec 3.2.1.14), increases in transcription of defence-related genes beta-1,3-glucanase (glu) and chitinase (chi) and accumulation of pathogen-related protein (pr1). furthermore, chns of different mws were observed to have different capacities to induce defence responses. chns of low mws were more effective at inducing the described defence responses than those of higher mws. enhanced defence against rice blast pathogen magnaporthe grisea 97-23-2d1 was observed in rice seedlings treated with low mw chns compared to seedlings treated with higher mw chns. in all cases, suppressing the production of h2o2 by adding scavengers dimethylthiourea (dmtu), 2,5-dihydroxycinnamic acid methyl ester (dhc), catalase (cat) or ascorbate (as) blocked the defence responses. these results indicate that chns of low mws have a greater capacity to induce the production of h2o2, thus resulting in stronger defence responses, than those with higher mws. (c) 2005 elsevier gmbh. all rights reserved. |
| WOS关键词 | ENZYMATIC-HYDROLYSIS ; DISEASE RESISTANCE ; OXIDATIVE BURST ; CELLS ; CHITOOLIGOSACCHARIDES ; INDUCTION ; TOMATO ; LEAVES ; SATIVA |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000231707100011 |
| 出版者 | URBAN & FISCHER VERLAG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378218 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Cai, WM |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Biol Sci, Grad Sch, Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China 2.E China Univ Sci & Technol, Chem & Pharm Coll, Shanghai 200237, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, WL,Hu, XY,Zhang, WQ,et al. Hydrogen peroxide mediates defence responses induced by chitosans of different molecular weights in rice[J]. Journal of plant physiology,2005,162(8):937-944. |
| APA | Lin, WL,Hu, XY,Zhang, WQ,Rogers, WJ,&Cai, WM.(2005).Hydrogen peroxide mediates defence responses induced by chitosans of different molecular weights in rice.Journal of plant physiology,162(8),937-944. |
| MLA | Lin, WL,et al."Hydrogen peroxide mediates defence responses induced by chitosans of different molecular weights in rice".Journal of plant physiology 162.8(2005):937-944. |
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来源：中国科学院大学
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