Utilization of photosynthates during rubber biosynthesis in guayule (Parthenium argentatum Gray) (Record no. 72032)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 01572nam a2200181Ia 4500 |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Reddy A R |
| 245 #0 - TITLE STATEMENT | |
| Title | Utilization of photosynthates during rubber biosynthesis in guayule (Parthenium argentatum Gray) |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Name of publisher | Photosynthetica |
| Year of publication | 1995 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | 351-358 |
| 500 ## - GENERAL NOTE | |
| General note | Source Year: 1996 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Incorporation of 14C-labelled CO2, 3-phosphoglycerate (PGA), phosphoenolpyruvate (PEP) and pyruvate into hexane-extractable rubber fractions in cut shoots of guayule cv. 11591 was determined in order to evaluate the role of photosynthesis in providing precursors for rubber biosynthesis. DCMU inhibited the incorporation of labelled CO2 and PGA into rubber. The incorporation of 14CO2 increased with increasing light intensity. Enzymatic activities of phosphoglyceromutase, enolase, pyruvate kinase and pyruvate dehydrogenase complex in purified chloroplasts from the leaves indicated the chloroplast autonomy for intraplastid acetyl coenzyme A formation. Enzymes related to the biosynthesis of isopentenyl pyrophosphate (IPP) were associated with both leaf and stem extracts. Rubber-producing enzyme activities, namely IPP isomerase and rubber transferase, were abundantly localized in roots and stems of guayule, while the leaves exhibited low activities of these enzymes. Hence the leaves of guayule play a major role in providing precursors for rubber formation in stems and roots. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Guayule |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Rubber biosynthesis |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Das V S R |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | IRRDB |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Journals |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Serial Enumeration / chronology | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Journals | RRII Library | RRII Library | Rubber general | 17/12/2021 | Volume 31, Issue 3 | Journals |