Glycolate Synthesis in Tomato Leaf Disks: Involvement of Storage Material in Photorespiration - Collections

＜departmental bulletin paper＞
Glycolate Synthesis in Tomato Leaf Disks: Involvement of Storage Material in Photorespiration

Creator	Creator Name Yamauchi, Minoru 山内, 稔 Affiliation Affiliation Name Laboratory of Soil Fertility and Plant Nutrition, Faculty of Agriculture, Kyushu University 九州大学農学部農芸化学科植物栄養肥料学講座
Creator	Creator Name Yamada, Yoshio 山田, 芳雄 Affiliation Affiliation Name Laboratory of Soil Fertility and Plant Nutrition, Faculty of Agriculture, Kyushu University 九州大学農学部農芸化学科植物栄養肥料学講座
Language	English
Publisher	Kyushu University
Publisher	九州大学農学部
Date	1985-12
Source Title	Journal of the Faculty of Agriculture, Kyushu University
Vol	30
Issue	2/3
First Page	135
Last Page	147
Publication Type	Version of Record
Access Rights	open access
Crossref DOI	https://doi.org/10.5109/23819
Related DOI	九州大学農学部紀要 \|\| 30(2/3) \|\| p135-147
	Journal of the Faculty of Agriculture, Kyushu University \|\| 30(2/3) \|\| p135-147
	http://www.agr.kyushu-u.ac.jp/
Related URI	九州大学農学部紀要 \|\| 30(2/3) \|\| p135-147
	Journal of the Faculty of Agriculture, Kyushu University \|\| 30(2/3) \|\| p135-147
	http://www.agr.kyushu-u.ac.jp/
Relation	九州大学農学部紀要 \|\| 30(2/3) \|\| p135-147
	Journal of the Faculty of Agriculture, Kyushu University \|\| 30(2/3) \|\| p135-147
	http://www.agr.kyushu-u.ac.jp/

File	FileType	Size	Views	Description
p135	pdf	295 KB	503

PISSN	0023-6152
NCID	AA00697606
Record ID	23819
Peer-Reviewed	Unrefereed
Subject Terms	CO
	Glycolate synthesis
	Photorespiration
	Tomato leaf disks
ISSN	0023-6152
NCID	AA00697606
Notes	Glycolate accumulated in tomato leaf disks in the presence of cr-hydroxy 2-pyridinemethanesulfonic acid during photosynthesis in the presence of ^<14>CO_2. Based on the specific radioactivities of the glycolate and CO,, and the amount of ^<14>C in the glycolate pool, the amounts of glycolate and glycolate originating from CO, fixation were calculated. At 21 % O_2, the glycolate accumulation increased with increasing CO, concentration to a maximum at 200-400 ppm but was inhibited when the CO_2 level was raised further. The accumulation of glycolate originating from CO, was reduced and the specific activity of glycolate relative to the added CO, decreased significantly at low CO, concentration. These findings suggest that at low CO, concentration, the main source of glycolate carbon is in the storage material. Glycolate formation and its carbon sources were further analyzed by varying the O_2/CO, ratio in the atmosphere, temperature and light intensity. The results suggested that glycolate is synthesized from storage materal when the O_2/CO_2 ratio in the atmosphere is high and that decreased photosynthesis restricts the synthesis of glycolate originating from CO,.
Created Date	2012.08.01
Modified Date	2022.11.11