Seasonal variations in biosynthetic capacity for the synthesis of caffeine in tea leaves (Record no. 41056)
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| 000 -LEADER | |
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| fixed length control field | 01765nam a2200265Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625124648.0 |
| 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-6717 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Seasonal variations in biosynthetic capacity for the synthesis of caffeine in tea leaves |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | PhytoChemistry, 30(7), p.2245-2248, 1991 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Seasonal variations in the metabolic fate of adenine nucleotides prelabelled with [8-14C]adenine were examined in leaf disks prepared at one-month intervals, over the course of one year, from the shoots of tea plants (Camellia sinensis L. cv Yabukita)which were growing under natural field conditions. Incorporation of radioactivity into nucleic acids and catabolites of purine nucleotides was found throughout the experimental period, but incorporation into theobromine and caffeine was found only in the young leaves harvested from April to June. Methylation of xanthosine, 7-methylxanthine and theobromine was catalysed by gel-filtered leaf extracts from young shoots (April to June), but the reactions could not be detected in extracts from leaves in which no synthesis of caffeine was observed in vivo. By contrast, the activity of 5-phosphoribosyl-1-pyrophosphate synthetase was still found in leaves harvested in July and August. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | CAMELLIA SINENSIS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | THEACEAE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | TEA |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | BIOSYNTHESIS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | PURINE METABOLISM |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | CAFFEINE |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Fujimori, N. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Suzukia, T. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ashihara, H. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1DXSTWARqgcPggc6WZIQIA4lf3mBT8Gyi/view?usp=drivesdk">https://drive.google.com/file/d/1DXSTWARqgcPggc6WZIQIA4lf3mBT8Gyi/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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-6717 | 25.06.2025 | 25.06.2025 | Documentos solicitados |