| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2009-03-06 |
| タイトル |
|
|
タイトル |
Interactions between Caenorhabditis elegans Individuals during Chemotactic Response |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Caenorhabditis elegans |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
chemotaxis |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
diacetyl |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
pheromone |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
population density |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
sodium acetate |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
Matsuura, Tetsuya
Sato, Taketo
Shingai, Ryuzo
|
| 著者(機関) |
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|
値 |
Department of Welfare Engineering, Faculty of Engineering, Iwate University |
| 登録日 |
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|
日付 |
2009-03-06 |
| 書誌情報 |
ZOOLOGICAL SCIENCE
巻 22,
号 10,
p. 1095-1103,
発行日 2005-01-01
|
| ISSN |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0289-0003 |
| Abstract |
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|
内容記述タイプ |
Other |
|
内容記述 |
The chemotactic response of the nematode Caenorhabditis elegans is known to be affected by the population density on an assay plate, suggesting the existence of interactions between individual animals. To clarify the interactions between individuals during chemotaxis, we investigated the effect of population density at an attractant area on the chemotactic response to water-soluble sodium acetate and odorant diacetyl using wild-type N2 animals and daf-22 (m130) mutants, which have defective pheromone secretion but can sense pheromone. The chemotaxis index of N2 animals at 90 min of the assay negatively correlated with the number of animals on the assay plate regardless of the type of attractant used (p<0.01). On the other hand, there was no significant difference in the chemotaxis indices of daf-22 (m130) mutants for either of the attractants between the low-and high-population groups. When daf-22 (m130) mutants of a high population density were placed at the attractant location in advance, the chemotaxis index of N2 animals was almost the same as that in the control assay in which no animals were placed at the attractant location in advance. When N2 animals of a high population density were placed at the attractant location in advance, the chemotaxis indices of N2 animals and daf-22 (m130) mutants were significantly smaller than those obtained in the control assay (p<0.05). In the absence of an attractant, we observed a decline in the fraction of animals in the neighborhood of N2 animals of a high population density, although the nematodes were not influenced by daf-22 (m130) mutants of a high population density. These results suggest that the attraction of nematodes to chemicals is inhibited by an increase in the concentration of the pheromone generated by N2 animals at the attractant location. |
| 出版者 |
|
|
出版者 |
ZOOLOGICAL SCIENCE |
| 権利 |
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|
権利情報 |
(c) 2005 Zoological Society of Japan |
| DOI |
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|
関連タイプ |
isIdenticalTo |
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.2108/zsj.22.1095 |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
zs-v22n10p1095-1103.pdf (235.3 kB)
