Abstract
The application of exogenous proline and glycinebetaine (betaine) confers salt tolerance on plants undersalt stress. The e?ects of exogenous proline and betaine on apoplastic ?ow in rice plants under saline conditions were investigated using trisodium-8-hydroxy-1,3,6-pyr-enetrisulphonic acid (PTS), an apoplastic tracer. Rice plants took up more PTS under light conditions than under dark conditions. Salt stress increased PTS uptake and Nap content of rice leaves, but did not a?ect Kp content, resulting in a lower Kp/Nap ratio. Addition of proline or betaine to the saline medium suppressed Napinduced PTS uptake and Nap accumulation, while the Kp content was slightly increased, which led to a high Kp/Nap ratio under saline conditions. These results suggest that exogenous proline and betaine suppressed Nap-enhanced apoplastic ?ow to reduce Nap uptake in rice plants.
| Original language | English |
|---|---|
| Pages (from-to) | 2037-2042 |
| Number of pages | 6 |
| Journal | Bioscience, Biotechnology and Biochemistry |
| Volume | 73 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2009 |
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Keywords
- Apoplastic flow
- Proline
- Rice
- Salt stress
ASJC Scopus subject areas
- Biotechnology
- Biochemistry
- Molecular Biology
- Applied Microbiology and Biotechnology
- Analytical Chemistry
- Organic Chemistry
Cite this
Exogenous proline and glycinebetaine suppress apoplastic flow to reduce Na+ uptake in rice seedlings. / Sobahan, Muhammad Abdus; Arias, Carlos Raul; Okuma, Eiji; Shimoishi, Yasuaki; Nakamura, Yoshimasa; Hirai, Yoshihiko; Mori, Izumi; Murata, Yoshiyuki.
In: Bioscience, Biotechnology and Biochemistry, Vol. 73, No. 9, 2009, p. 2037-2042.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Exogenous proline and glycinebetaine suppress apoplastic flow to reduce Na+ uptake in rice seedlings
AU - Sobahan, Muhammad Abdus
AU - Arias, Carlos Raul
AU - Okuma, Eiji
AU - Shimoishi, Yasuaki
AU - Nakamura, Yoshimasa
AU - Hirai, Yoshihiko
AU - Mori, Izumi
AU - Murata, Yoshiyuki
PY - 2009
Y1 - 2009
N2 - The application of exogenous proline and glycinebetaine (betaine) confers salt tolerance on plants undersalt stress. The e?ects of exogenous proline and betaine on apoplastic ?ow in rice plants under saline conditions were investigated using trisodium-8-hydroxy-1,3,6-pyr-enetrisulphonic acid (PTS), an apoplastic tracer. Rice plants took up more PTS under light conditions than under dark conditions. Salt stress increased PTS uptake and Nap content of rice leaves, but did not a?ect Kp content, resulting in a lower Kp/Nap ratio. Addition of proline or betaine to the saline medium suppressed Napinduced PTS uptake and Nap accumulation, while the Kp content was slightly increased, which led to a high Kp/Nap ratio under saline conditions. These results suggest that exogenous proline and betaine suppressed Nap-enhanced apoplastic ?ow to reduce Nap uptake in rice plants.
AB - The application of exogenous proline and glycinebetaine (betaine) confers salt tolerance on plants undersalt stress. The e?ects of exogenous proline and betaine on apoplastic ?ow in rice plants under saline conditions were investigated using trisodium-8-hydroxy-1,3,6-pyr-enetrisulphonic acid (PTS), an apoplastic tracer. Rice plants took up more PTS under light conditions than under dark conditions. Salt stress increased PTS uptake and Nap content of rice leaves, but did not a?ect Kp content, resulting in a lower Kp/Nap ratio. Addition of proline or betaine to the saline medium suppressed Napinduced PTS uptake and Nap accumulation, while the Kp content was slightly increased, which led to a high Kp/Nap ratio under saline conditions. These results suggest that exogenous proline and betaine suppressed Nap-enhanced apoplastic ?ow to reduce Nap uptake in rice plants.
KW - Apoplastic flow
KW - Proline
KW - Rice
KW - Salt stress
UR - http://www.scopus.com/inward/record.url?scp=70349694354&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349694354&partnerID=8YFLogxK
U2 - 10.1271/bbb.90244
DO - 10.1271/bbb.90244
M3 - Article
C2 - 19734659
AN - SCOPUS:70349694354
VL - 73
SP - 2037
EP - 2042
JO - Bioscience, Biotechnology and Biochemistry
JF - Bioscience, Biotechnology and Biochemistry
SN - 0916-8451
IS - 9
ER -