The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.
Isolation and Characterization of a Rice Dwarf Mutant with a Defect in Brassinosteroid Biosynthesis
Open accessAbstract
We have isolated a new recessive dwarf mutant of rice (Oryza sativa L. cv Nipponbare). Under normal growth conditions, the mutant has very short leaf sheaths; has short, curled, and frizzled leaf blades; has few tillers; and is sterile. Longitudinal sections of the leaf sheaths revealed that the cell length along the longitudinal axis is reduced, which explains the short leaf sheaths. Transverse sections of the leaf blades revealed enlargement of the motor cells along the dorsal-ventral axis, which explains the curled and frizzled leaf blades. In addition, the number of crown roots was smaller and the growth of branch roots was weaker than those in the wild-type plant. Because exogenously supplied brassinolide considerably restored the normal phenotypes, we designated the mutantbrassinosteroid-dependent 1(brd1). Further, under darkness, brd1showed constitutive photomorphogenesis. Quantitative analyses of endogenous sterols and brassinosteroids (BRs) indicated that BR-6-oxidase, a BR biosynthesis enzyme, would be defective. In fact, a 0.2-kb deletion was detected in the genomic region ofOsBR6ox (a rice BR-6-oxidase gene) in thebrd1 mutant. These results indicate that BRs are involved in many morphological and physiological processes in rice, including the elongation and unrolling of leaves, development of tillers, skotomorphogenesis, root differentiation, and reproductive growth, and that the defect of BR-6-oxidase caused thebrd1 phenotype.
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Cited by
Adventitious Roots and Lateral Roots: Similarities and Differences
Bellini, C., Pacurar, D. I., & Perrone, I. (2014) · Annual Review of Plant Biology · doi:10.1146/annurev-arplant-050213-035645 · Cited by 624
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Brassinosteroid Regulates Cell Elongation by Modulating Gibberellin Metabolism in Rice
Tong, H., Xiao, Y., Liu, D., Gao, S., Liu, L., Yin, Y., Jin, Y., Qian, Q., & Chu, C. (2014) · The Plant Cell · doi:10.1105/tpc.114.132092 · Cited by 458
Physiological Actions of Brassinosteroids: An Update
Sasse, J. M. (2003) · Journal of Plant Growth Regulation · doi:10.1007/s00344-003-0062-3 · Cited by 398
Metadata
- Authors
- Mori, M., Nomura, T., Ooka, H., Ishizaka, M., Yokota, T., Sugimoto, K., Okabe, K., Kajiwara, H., Satoh, K., Yamamoto, K., Hirochika, H., & Kikuchi, S.
- Venue
- Plant Physiology
- Publisher
- Oxford University Press (OUP)
- Published
- 2002-11-01
- Volume
- 130
- Issue
- 3
- Pages
- 1152-1161
- ISSN
- 0032-0889 (ISSN-L)
- 1532-2548
- OpenAlex
- W2166580718
- Cited by
- 294
- References
- 45
- FWCI
- 10.63
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Mori, M., Nomura, T., Ooka, H., Ishizaka, M., Yokota, T., Sugimoto, K., Okabe, K., Kajiwara, H., Satoh, K., Yamamoto, K., Hirochika, H., & Kikuchi, S. (2002). Isolation and Characterization of a Rice Dwarf Mutant with a Defect in Brassinosteroid Biosynthesis. Plant Physiology. https://doi.org/10.1104/pp.007179
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