Lateral root formation in rice (Oryza sativa): Promotion effect of jasmonic acid

Shucai Wang; Masahiko Ichii; Shin Taketa; Langlai Xu; Kai Xia; Xie Zhou

doi:10.1078/0176-1617-00825

Lateral root formation in rice (Oryza sativa): Promotion effect of jasmonic acid

Shucai Wang, Masahiko Ichii, Shin Taketa, Langlai Xu, Kai Xia, Xie Zhou

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

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
DOIs	https://doi.org/10.1078/0176-1617-00825
Publication status	Published - Aug 2002
Externally published	Yes

Keywords

Jasmonic acid
Lateral root
Mutant
Oryza sativa L.
Rice
Seminal root

ASJC Scopus subject areas

Physiology
Agronomy and Crop Science
Plant Science

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10.1078/0176-1617-00825

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title = "Lateral root formation in rice (Oryza sativa): Promotion effect of jasmonic acid",

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.",

keywords = "Jasmonic acid, Lateral root, Mutant, Oryza sativa L., Rice, Seminal root",

author = "Shucai Wang and Masahiko Ichii and Shin Taketa and Langlai Xu and Kai Xia and Xie Zhou",

note = "Funding Information: Acknowledgements. We thank Dr. J. G. Chen at the University of North Carolina for helpful suggestions and a critical reading of the manuscript. This research is supported by grants from the National Natural Science Foundation of China (No. 39 970 437) and the Youth Foundation of Nanjing Agricultural University.",

year = "2002",

month = aug,

doi = "10.1078/0176-1617-00825",

language = "English",

volume = "159",

pages = "827--832",

journal = "Journal of Plant Physiology",

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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

N1 - Funding Information: Acknowledgements. We thank Dr. J. G. Chen at the University of North Carolina for helpful suggestions and a critical reading of the manuscript. This research is supported by grants from the National Natural Science Foundation of China (No. 39 970 437) and the Youth Foundation of Nanjing Agricultural University.

PY - 2002/8

Y1 - 2002/8

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

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Lateral root formation in rice (Oryza sativa): Promotion effect of jasmonic acid

Abstract

Keywords

ASJC Scopus subject areas

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