Rice bending lamina 2 (bla2) Mutants Are Defective in a Cytochrome P450 (CYP734A6) Gene Predicted to Mediate Brassinosteroid Catabolism

• Published in: Journal of plant biology = Singmul Hakhoe chi Vol. 49; no. 6; pp. 469 - 476
• Main Authors: Park, W.K. (Seoul National University, Seoul, Republic of Korea), Kim, H.B. (Seoul National University, Seoul, Republic of Korea), Kim, W.T. (Yonsei University, Seoul, Republic of Korea), Park, P.B. (The University of Suwon, Suwon, Republic of Korea), An, G.H. (Pohang University of Science and Technology, Pohang, Republic of Korea), Choe, S.H. (Seoul National University, Seoul, Republic of Korea), E-mail: shchoe@snu.ac.kr
• Format: Journal Article
• Language: English
• Published: 한국식물학회 31.12.2006
• Subjects: BRASINOSTEROIDES; BRASSINOSTEROIDE; BRASSINOSTEROIDS; CITOCROMO P450; CYTOCHROME P450; erect leaves; rice T-DNA mutant; short stature; 생물학
• ISSN: 1226-9239; 1867-0725
• DOI: 10.1007/BF03031128

Desirable morphological traits in rice plants, such as shorter stalks and erect leaves, are being pursued in breeding programs. Rice brassinosteroid (BR)-deficient mutants display the phenotype of reduced heights and erect lamina. Therefore, biotechnology can be used for controlled deactivation of bioactive BRs in specific tissues. Here, we isolated a gene encoding for a BR-deactivating enzyme. Based on its sequence identity with a known enzyme, Arabidopsis Cytochrome P450 734A1, we identified a rice homolog named OsCYP734A6 (LOC_Os01g29150).