Occurrence and degeneration of 'Al-structures' in root cap cells of Allium cepa L. after Al-treatment (Record no. 49951)
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| fixed length control field | 02078nam a2200169Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625160139.0 |
| 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-15772 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Occurrence and degeneration of 'Al-structures' in root cap cells of Allium cepa L. after Al-treatment |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Hereditas, 112(3), p.193-202, 1990 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | A13+ ions, in concentrations similar to those found in acidificated soil solutions, cause severe damage to growing roots of Allium cepa. A structure or organelle, the 'Al-structure', was discovered earlier (fiskesjö 1983). and was observed regularly in the cytoplasm of root cap cells after 2 days of treatment with Al (10-3M AIC13). In the present investigation, with observations at 4 h intervals, it was revealed in 4 experiments that the inner meristem cells and the root cap cells were affected in different ways. In the meristem cells, material leached out from the nucleus into the cytoplasm, forming hyaline bubbles, unstained by oceans. In the root cap cells., on the other hand, similar material formed cavities or characteristic oblong 'Al-structures'. It was implied that the 'Al-structures' eventually divided into two, one on each side of the nucleus and both oriented lengthwise in the cell. Treatment with 10-3M Al for 48-56 h, started at 9.00 or 13.00 hours, gave the highest incidence of 'Al-structures' compared to treatments started later during the day. After treatments longer than 48 h, the nuclei degenerated at the same time as the 'Al-structures' increased in size, and after 3-4 days of treatment the nucleic degeneration was accompanied by decomposition of the 'Al-structures' in the cytoplasm.Whether Al constitutes a part of the 'Al-structures', and whether this structural manifestation is common among plants remain to be seen. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Fiskesjö, Geirid |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1v8uUui1euTQXU7M57VrocR_k0hI12c_l/view?usp=drivesdk">https://drive.google.com/file/d/1v8uUui1euTQXU7M57VrocR_k0hI12c_l/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-15772 | 25.06.2025 | 25.06.2025 | Documentos solicitados |