Abstract
The effect of JA on lateral root (LR) formation was tested using 2-day-old seedlings of IR8 rice (Oryza sativa L.). Results showed that JA in all concentrations (0.016-50 μmol/L) increased the number of LRs in the region of seminal root formed during and after the treatment (distal region), but had no effect (less than 2 μmol/L) or decreased (over 2 μmol/L) the number of LRs in the region already formed before treatment (basal region). On the other hand, the development of root hair in the distal region was inhibited, and even fully blocked by JA over 1 μmol/L. Both JA's effects on promoting LR formation and inhibiting root hair formation in the distal region could last at least 7 days subsequent to the removal of JA treatment. All these results indicated that JA might be one of the potent hormonal factors, other than auxin, involved in the regulation of LR formation.
| Original language | English |
|---|---|
| Pages (from-to) | 827-832 |
| Number of pages | 6 |
| Journal | Journal of Plant Physiology |
| Volume | 159 |
| Issue number | 8 |
| Publication status | Published - 2002 |
| Externally published | Yes |
Fingerprint
Keywords
- Jasmonic acid
- Lateral root
- Mutant
- Oryza sativa L.
- Rice
- Seminal root
ASJC Scopus subject areas
- Plant Science
Cite this
Lateral root formation in rice (Oryza sativa) : Promotion effect of jasmonic acid. / Wang, Shucai; Ichii, Masahiko; Taketa, Shin; Xu, Langlai; Xia, Kai; Zhou, Xie.
In: Journal of Plant Physiology, Vol. 159, No. 8, 2002, p. 827-832.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Lateral root formation in rice (Oryza sativa)
T2 - Promotion effect of jasmonic acid
AU - Wang, Shucai
AU - Ichii, Masahiko
AU - Taketa, Shin
AU - Xu, Langlai
AU - Xia, Kai
AU - Zhou, Xie
PY - 2002
Y1 - 2002
N2 - The effect of JA on lateral root (LR) formation was tested using 2-day-old seedlings of IR8 rice (Oryza sativa L.). Results showed that JA in all concentrations (0.016-50 μmol/L) increased the number of LRs in the region of seminal root formed during and after the treatment (distal region), but had no effect (less than 2 μmol/L) or decreased (over 2 μmol/L) the number of LRs in the region already formed before treatment (basal region). On the other hand, the development of root hair in the distal region was inhibited, and even fully blocked by JA over 1 μmol/L. Both JA's effects on promoting LR formation and inhibiting root hair formation in the distal region could last at least 7 days subsequent to the removal of JA treatment. All these results indicated that JA might be one of the potent hormonal factors, other than auxin, involved in the regulation of LR formation.
AB - The effect of JA on lateral root (LR) formation was tested using 2-day-old seedlings of IR8 rice (Oryza sativa L.). Results showed that JA in all concentrations (0.016-50 μmol/L) increased the number of LRs in the region of seminal root formed during and after the treatment (distal region), but had no effect (less than 2 μmol/L) or decreased (over 2 μmol/L) the number of LRs in the region already formed before treatment (basal region). On the other hand, the development of root hair in the distal region was inhibited, and even fully blocked by JA over 1 μmol/L. Both JA's effects on promoting LR formation and inhibiting root hair formation in the distal region could last at least 7 days subsequent to the removal of JA treatment. All these results indicated that JA might be one of the potent hormonal factors, other than auxin, involved in the regulation of LR formation.
KW - Jasmonic acid
KW - Lateral root
KW - Mutant
KW - Oryza sativa L.
KW - Rice
KW - Seminal root
UR - http://www.scopus.com/inward/record.url?scp=0036679409&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036679409&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0036679409
VL - 159
SP - 827
EP - 832
JO - Journal of Plant Physiology
JF - Journal of Plant Physiology
SN - 0176-1617
IS - 8
ER -