Document Detail

Changes of zeatin riboside content in rice plants due to infestation by Nilaparvata lugens (Homoptera: Delphacidae).
MedLine Citation:
PMID:  15666745     Owner:  NLM     Status:  MEDLINE    
The effect of Nilaparvata lugens (Stål) (Homoptera: Delphacidae), infestation on the content of zeatin ribosides (ZR) in rice plants was investigated with enzyme-linked immunosorbent assay. Hydroponics experiments were conducted on 'Zhendao 2' rice, in which plants were subjected to N. lugens infestation at three nonhopperburn-causing densities (15, 30, and 60 nymphs per hill) for 2, 4, 6, and 8 d and at one hopperburn-causing density (240 nymphs per hill) for 2, 4, and 6 d, respectively. When rice plants were infested at the nonhopperburn-causing densities, ZR content in leaves varied significantly with the infestation density. Compared with the control plants, ZR content in rice leaves decreased significantly after infestation by 60 nymphs per hill for 2 d, but it tended to increase due to prolonged infestation at all the nonhopperburn-causing densities. In contrast, ZR content in rice roots significantly reduced after the plants being infested at the density of 15 nymphs for 2 d and at all densities for prolonged duration, except for the plants infested by 60 nymphs for 6 and 8 d, in which the ZR content increased or did not change significantly. However, infestation at the hopperburn-causing density caused significant reduction in ZR content in rice roots, regardless of infestation duration, and in rice leaves from the plants subjected to 2-d infestation. These results are discussed in relation to the possible physiological reaction of rice plants to N. lugens infestation and the resultant severe damage or hopperburn.
Jin-Cai Wu; Zheng-Hua Qiu; Jian-Li Ying; Bo Dong; Hai-Nan Gu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of economic entomology     Volume:  97     ISSN:  0022-0493     ISO Abbreviation:  J. Econ. Entomol.     Publication Date:  2004 Dec 
Date Detail:
Created Date:  2005-01-25     Completed Date:  2005-02-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985127R     Medline TA:  J Econ Entomol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1917-22     Citation Subset:  IM    
Department of Plant Protection, Agricultural College, Yangzhou University, Yangzhou 225009, People's Republic of China.
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MeSH Terms
Adenosine / analogs & derivatives*,  analysis*
Hemiptera / physiology*
Isopentenyladenosine / analogs & derivatives*,  analysis*
Oryza sativa / chemistry*
Plant Diseases
Plant Leaves / chemistry
Plant Roots / chemistry
Time Factors
Reg. No./Substance:
28542-78-1/zeatin riboside; 58-61-7/Adenosine; 7724-76-7/Isopentenyladenosine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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