Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Nawa, Y.
Right arrow Articles by Asahi, T.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Nawa, Y.
Right arrow Articles by Asahi, T.
Agricola
Right arrow Articles by Nawa, Y.
Right arrow Articles by Asahi, T.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Plant and Cell Physiology, 1973, Vol. 14, No. 6 1073-1080
© 1973

Article

Effect of the pea embryo on formation and degeneration of the mitochondrial membrane in cotyledons during germination

Yoshihiko Nawa, Yoshio Izawa and Tadashi Asahi

Laboratory of Biochemistry, Faculty of Agriculture, Nagoya University Nagoya 464, Japan

The effect of removal of the embryo on the properties of mitochondria in pea cotyledons was investigated. During imbibition of the seeds, mitochondrial activity was enhanced in the cotyledons. In later stages of germination, respiratory activity of the mitochondria decreased gradually, and no response of the mitochondria to exogenous ADP was observed. Moreover, considerable activity of cytochrome oxidase wasrecovered in the post-mitochondrial fraction. Mitochondrial fractions isolated from senescent cotyledons contained only fragmented particles of mitochondria. On the other hand, in cotyledons excised from the seeds and cultivated under wet condition, the initial development of mitochondria demonstrated in the attached cotyledons was suppressed. However, respiratory activity of the mitochondria increased in the later stages of cultivation. The mitochondria remained unfragmented and responded to exogenous ADP during all stages of cultivation. Also, a change in the density of mitochondria which occurred in the germinating attached cotyledons was delayed in the cultivated excised cotyledons.

(Received February 27, 1973; )
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.