Identification of Arabidopsis Mutants Impaired in the Systemic Regulation of Root Nitrate Uptake by the Nitrogen Status of the Plant1[C][W] (Record no. 46410)
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| fixed length control field | 02559nam a2200265Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625140705.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-12199 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Identification of Arabidopsis Mutants Impaired in the Systemic Regulation of Root Nitrate Uptake by the Nitrogen Status of the Plant1[C][W] |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Plant Physiology, 153, p.1250-1260, 2010 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Nitrate uptake by the roots is under systemic feedback repression by high nitrogen (N)status of the whole plant. The NRT2.1 gene, which encodes a NO3 2 transporter involved in high-affinity root uptake, is a major target of this N signaling mechanism. Using transgenic Arabidopsis (Arabidopsis thaliana)plants expressing the pNRT2.1::LUC reporter gene (NL line), we performed a genetic screen to isolate mutants altered in the NRT2.1 response to high N provision. Three hni (for high nitrogen insensitive)mutants belonging to three genetic loci and related to single and recessive mutations were selected. Compared to NL plants, these mutants display reduced down-regulation of both NRT2.1 expression and high-affinity NO3 2 influx under repressive conditions. Split-root experiments demonstrated that this is associated with an almost complete suppression of systemic repression of pNRT2.1 activity by high N status of the whole plant. Other mechanisms related to N a d carbon nutrition regulating NRT2.1 or involved in the control of root SO4 2 uptake by the plant sulfur status are not or are slightly affected. The hni mutations did not lead to significant changes in total N and NO3 2 contents of the tissues, indicating that hni mutants are more likely regulatory mutants rather than assimilatory mutants. Nevertheless, hni mutations induce changes in amino acid, organic acid, and sugars pools, suggesting a possible role of these metabolites in the control of NO3 2 uptake by the plant N status. Altogether, our data indicate that the three hni mutants define a new class of N signaling mutants specifically impaired in the systemic feedback repression of root NO3 2 uptake. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Girin, T. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | El-Kafafi, E. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Widiez, T. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Erban, A. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hubberten, H. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kopka, J. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hoefgen, R. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hoefgen, R. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Lepetit, M. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1Z8Ina2E9hzJ4Bs7jxPb0YxXhs_rZbTfs/view?usp=drivesdk">https://drive.google.com/file/d/1Z8Ina2E9hzJ4Bs7jxPb0YxXhs_rZbTfs/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
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| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-12199 | 25.06.2025 | 25.06.2025 | Documentos solicitados |