Abstract
Rice seeds were germinated for up to 5 days under water (submerged) and some for another day in air (air-adapted). Control seeds were germinated for 6 days throughout in air. Low-temperature difference spectra of shoot mitochondria were compared among these three types of seedlings. All cytochromes found in the aerobic seedlings were present in the submerged seedlings. However, there were some differences in the cytochromes b553 and c of these two types of seedlings. The cytochrome aa3 peak height and cytochrome oxidase activity per mitochondrial protein increased 1.6- and 2.8-fold, respectively, during air adaptation. Slightly higher concentrations of the b-type cytochromes than found in air-adapted mitochondria were already present in submerged mitochondria. The computed difference between the dithionite-reduced difference spectra of mitochondria from submerged seedlings before and after air adaptation, showed that cytochromes aa3 and c had increased more than cytochrome b557 during air adaptation.
| Original language | English |
|---|---|
| Pages (from-to) | 629-635 |
| Number of pages | 7 |
| Journal | Plant and Cell Physiology |
| Volume | 29 |
| Issue number | 4 |
| Publication status | Published - Jun 1988 |
| Externally published | Yes |
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Keywords
- Cytochrome
- Mitochondria
- Oxygen deficiency
- Rice
ASJC Scopus subject areas
- Statistics, Probability and Uncertainty
- Applied Mathematics
- Ecology
- Cell Biology
- Physiology
- Plant Science
Cite this
Cytochromes of mitochondria from rice seedlings germinated under water and their changes during air adaptation. / Shibasaka, Mineo; Tsuji, Hideo.
In: Plant and Cell Physiology, Vol. 29, No. 4, 06.1988, p. 629-635.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cytochromes of mitochondria from rice seedlings germinated under water and their changes during air adaptation
AU - Shibasaka, Mineo
AU - Tsuji, Hideo
PY - 1988/6
Y1 - 1988/6
N2 - Rice seeds were germinated for up to 5 days under water (submerged) and some for another day in air (air-adapted). Control seeds were germinated for 6 days throughout in air. Low-temperature difference spectra of shoot mitochondria were compared among these three types of seedlings. All cytochromes found in the aerobic seedlings were present in the submerged seedlings. However, there were some differences in the cytochromes b553 and c of these two types of seedlings. The cytochrome aa3 peak height and cytochrome oxidase activity per mitochondrial protein increased 1.6- and 2.8-fold, respectively, during air adaptation. Slightly higher concentrations of the b-type cytochromes than found in air-adapted mitochondria were already present in submerged mitochondria. The computed difference between the dithionite-reduced difference spectra of mitochondria from submerged seedlings before and after air adaptation, showed that cytochromes aa3 and c had increased more than cytochrome b557 during air adaptation.
AB - Rice seeds were germinated for up to 5 days under water (submerged) and some for another day in air (air-adapted). Control seeds were germinated for 6 days throughout in air. Low-temperature difference spectra of shoot mitochondria were compared among these three types of seedlings. All cytochromes found in the aerobic seedlings were present in the submerged seedlings. However, there were some differences in the cytochromes b553 and c of these two types of seedlings. The cytochrome aa3 peak height and cytochrome oxidase activity per mitochondrial protein increased 1.6- and 2.8-fold, respectively, during air adaptation. Slightly higher concentrations of the b-type cytochromes than found in air-adapted mitochondria were already present in submerged mitochondria. The computed difference between the dithionite-reduced difference spectra of mitochondria from submerged seedlings before and after air adaptation, showed that cytochromes aa3 and c had increased more than cytochrome b557 during air adaptation.
KW - Cytochrome
KW - Mitochondria
KW - Oxygen deficiency
KW - Rice
UR - http://www.scopus.com/inward/record.url?scp=0009446430&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0009446430&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0009446430
VL - 29
SP - 629
EP - 635
JO - Plant and Cell Physiology
JF - Plant and Cell Physiology
SN - 0032-0781
IS - 4
ER -