| Chloroplasts move towards the nearest anticlinal walls under dark condition. | |
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MedLine Citation:
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PMID: 21626210 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Chloroplasts change their intracellular positions in response to their light environment. Under darkness, chloroplasts assume special positions that are different from those under light conditions. Here, we analyzed chloroplast dark positioning using Adiantum capillus-veneris gametophyte cells. When chloroplasts were transferred into darkness, during the first 1-5 h, they moved towards the anticlinal cell walls bordering the adjacent cells rather rapidly. Then, they slowed down and accumulated at the anticlinal walls gradually over the following 24-36 h. The chloroplast movements could be roughly classified into two different categories: initial rapid straight movement and later, slow staggering movement. When the chloroplast accumulation response was induced in dark-adapted cells by partial cell irradiation with a microbeam targeted to the center of the cells, chloroplasts moved towards the beam spot from the anticlinal walls. However, when the microbeam was switched off, they moved to the nearest anticlinal walls and not to their original positions if they were not the closest, indicating that they know the direction of the nearest anticlinal wall and do not have particular areas that they migrate to during dark positioning. |
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Authors:
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Hidenori Tsuboi; Masamitsu Wada |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-5-29 |
Journal Detail:
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Title: Journal of plant research Volume: - ISSN: 1618-0860 ISO Abbreviation: - Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-5-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9887853 Medline TA: J Plant Res Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Kyushu University, 6-10-1 Hakozaki, Fukuoka, 812-8581, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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