| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Use of positron emitting tracer system for measuring the effect of salinity on temporal and spatial distribution of 11C tracer and coupling between source and sink organs. |
|
言語 |
en |
| 作成者 |
Suwa, Ryuichi
Fujimaki, Shu
Suzui, Nobuo
Kawachi, Naoki
Ishii, Satomi
Sakamoto, Koichi
Nguyen, Nguyen Tran
Saneoka, Hirofumi
Mohapatra, Pravat K.
Moghaieb, Reda E.
Matsuhashi, Shinpei
Fujita, Kounosuke
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
Copyright (c) 2008 Elsevier Ireland Ltd |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
NaCl |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
PETIS |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Photosynthesis |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Soure-sink |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Stem diameter |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Translocation |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
420 |
| 内容記述 |
|
|
内容記述 |
Salinity stress affects photosynthate partitioning between sources and sinks of plants, but how it affects on these systems is less understood. Because sources and sinks are closely knitted, any adverse effect under sub-optimal condition on one part is often misinterpreted for the other. Knowledge on regulation of carbon partitioning is indispensable for stress resistance and good plant growth. In the present study, alteration of carbon partitioning in tomato plants (lycopersicon esculentum L. cv. Momotarou) under saline (NaCl) environment was studied by feeding radioactive 11C and stable 13C isotopes. Pulse chases were conducted for measuring spatial and temporal distributions of 13C. 13C was measured by standard conventional technique, but 11C distribution was monitored using by PETIS. Salt stress resulted in reduced carbon translocation towards roots. Majority of the photosynthate accumulated in the leaf. We have also observed that the reduction in translocation of carbon occurred well before salt stress symptoms of reduced photosynthesis and plant growth in salt exposed plants. The effect on sink activity also showed by decrease in stem diameter and reduced photosynthetic activity. In addition, PETIS analysis of 11C translocation indicates that carbon translocation to roots was inhibited under salt conditions without direct effect of leaf Na accumulation and osmotic stress These results suggest that NaCl has direct effects on plants inhibiting carbon partitioning within few hours of salt solution exposure without inhibition of source activity. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Elsevier Ireland Ltd |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
AO |
|
出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1016/j.plantsci.2008.03.022 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1016/j.plantsci.2008.03.022 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0168-9452 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA10531279 |
| 開始ページ |
|
|
開始ページ |
210 |
| 書誌情報 |
Plant Science
Plant Science
巻 175,
号 3,
p. 210-216,
発行日 2008-09
|
| 旧ID |
25955 |
PlantSci_175_210.pdf (1.2 MB)
