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פותח על ידי קלירמאש פתרונות בע"מ -
Carbon dioxide enhances the development of the ethylene forming enzyme in tobacco leaf discs
Year:
1986
Authors :
אהרוני, נחמיה
;
.
פילוסוף-הדס, סוניה
;
.
Volume :
82
Co-Authors:

Shang Fa Yang

Facilitators :
From page:
925
To page:
929
(
Total pages:
5
)
Abstract:

Since CO2 is known to stimulate ethylene production by promoting the conversion of 1-aminocyclopropane-1-carboxylic acid (ACC) to ethylene, the effect of CO2 on the activity and the development of the ethylene forming enzyme (EFE) was studied in tobacco (Nicotiana tabacum L. cv Havana 425 and Xanthi) leaf discs. In addition to previous observations that EFE activity is dependent on CO2 concentration and is saturable with 2% CO2, present data show two saturation curves at 2% and 10% CO2. Promotion of EFE development was dependent also on CO2 concentration (saturated at 2% CO2) and duration (maximum at 24 in the dark), and was abolished by 20 micromolar cycloheximide. Application of exogenous ethylene (20 microliters per liter) or light treatment further increased the CO2-enhanced development of EFE, implying that these two factors can also affect EFE development via interaction with CO2. The results suggest that CO2 exerts its stimulatory effect on the conversion of ACC to ethylene by enhancing not only the activity but also the synthesis of EFE in leaf discs.

Note:
Related Files :
Carbon dioxide
enzymes
ethylene
leaves
Nicotiana
Tobacco Leaf Disc
עוד תגיות
תוכן קשור
More details
DOI :
DOI: https://doi.org/10.1104/pp.82.4.925
Article number:
0
Affiliations:
Database:
גוגל סקולר
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
45701
Last updated date:
02/03/2022 17:27
Creation date:
30/12/2019 14:09
Scientific Publication
Carbon dioxide enhances the development of the ethylene forming enzyme in tobacco leaf discs
82

Shang Fa Yang

Carbon dioxide enhances the development of the ethylene forming enzyme in tobacco leaf discs

Since CO2 is known to stimulate ethylene production by promoting the conversion of 1-aminocyclopropane-1-carboxylic acid (ACC) to ethylene, the effect of CO2 on the activity and the development of the ethylene forming enzyme (EFE) was studied in tobacco (Nicotiana tabacum L. cv Havana 425 and Xanthi) leaf discs. In addition to previous observations that EFE activity is dependent on CO2 concentration and is saturable with 2% CO2, present data show two saturation curves at 2% and 10% CO2. Promotion of EFE development was dependent also on CO2 concentration (saturated at 2% CO2) and duration (maximum at 24 in the dark), and was abolished by 20 micromolar cycloheximide. Application of exogenous ethylene (20 microliters per liter) or light treatment further increased the CO2-enhanced development of EFE, implying that these two factors can also affect EFE development via interaction with CO2. The results suggest that CO2 exerts its stimulatory effect on the conversion of ACC to ethylene by enhancing not only the activity but also the synthesis of EFE in leaf discs.

Scientific Publication
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