NIMTE OpenIR  > 2018专题
OsNOX3, encoding a NADPH oxidase, regulates root hair initiation and elongation in rice
Wang, S. S.; Zhu, X. N.; Lin, J. X.; Zheng, W. J.; Zhang, B. T.; Zhou, J. Q.; Ni, J.; Pan, Z. C.; Zhu, S. H.; Ding, W. N.
2018
Source PublicationBIOLOGIA PLANTARUM
Volume62Issue:4Pages:732-740
AbstractRoot hairs play important roles in plant nutrient and water acquisition. To better understand the genetic mechanism controlling root hair development in rice (Oryza sativa L.), a rice mutant with root hair defects was isolated and characterized. Cryo-scanning electron microscope showed that the density and length of root hairs in the mutant were significantly reduced compared to the wild type (WT). Map-based cloning and complementation test revealed that the mutation occurred in a NADPH oxidase gene OsNOX3 (LOC_Os01g61880). The OsNOX3 displays high sequence similarity with the previously characterized NOX genes RTH5 in maize and RHD2 in Arabidopsis, which play critical roles in root hair development. Expression pattern analysis indicated that OsNOX3 was expressed in various tissues throughout the plant with high expression in roots and root hairs. Subcellular localization analysis confirmed that OsNOX3 was located on the plasma membrane. Staining assays showed that the content of superoxide and hydrogen peroxide were significantly reduced in root hair tips of Osnox3 when compared to WT. Our results showed critical roles of OsNOX3 in regulating both root hair initiation and elongation in rice, which is similar to RTH5 but different from RHD2, confirming the difference of genetic mechanisms regulating root hair morphogenesis in monocot and dicot plants.
KeywordPlant-cell Growth Oryza-sativa Genetic-control Arabidopsis Morphogenesis Grasses Pattern Stress Plays L.
Subject AreaMaterials Science
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/16988
Collection2018专题
Recommended Citation
GB/T 7714
Wang, S. S.,Zhu, X. N.,Lin, J. X.,et al. OsNOX3, encoding a NADPH oxidase, regulates root hair initiation and elongation in rice[J]. BIOLOGIA PLANTARUM,2018,62(4):732-740.
APA Wang, S. S..,Zhu, X. N..,Lin, J. X..,Zheng, W. J..,Zhang, B. T..,...&Ding, W. N..(2018).OsNOX3, encoding a NADPH oxidase, regulates root hair initiation and elongation in rice.BIOLOGIA PLANTARUM,62(4),732-740.
MLA Wang, S. S.,et al."OsNOX3, encoding a NADPH oxidase, regulates root hair initiation and elongation in rice".BIOLOGIA PLANTARUM 62.4(2018):732-740.
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