The relationship between phenolics and flavonoids production with total non structural carbohydrate and photosynthetic rate in labisia pumila benth. under high CO2 and nitrogen fertilization.
A factorial split plot 4 × 3 experiment was designed to examine and characterize the relationship among production of secondary metabolites (total phenolics, TP; total flavonoids, TF), carbohydrate content and photosynthesis of three varieties of the Malaysian medicinal herb Labisia pumila Benth. na...
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| Format: | Article |
| Language: | English English |
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MDPI
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/17302/1/The%20relationship%20between%20phenolics%20and%20flavonoids%20production%20with%20total%20non%20structural%20carbohydrate%20and%20photosynthetic%20rate%20in%20labisia%20pumila%20benth.pdf |
| _version_ | 1825945983911985152 |
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| author | Ibrahim, Mohd Hafiz Jaafar, Hawa Z. E. Rahmat, Asmah Abdul Rahman, Zaharah |
| author_facet | Ibrahim, Mohd Hafiz Jaafar, Hawa Z. E. Rahmat, Asmah Abdul Rahman, Zaharah |
| author_sort | Ibrahim, Mohd Hafiz |
| collection | UPM |
| description | A factorial split plot 4 × 3 experiment was designed to examine and characterize the relationship among production of secondary metabolites (total phenolics, TP; total flavonoids, TF), carbohydrate content and photosynthesis of three varieties of the Malaysian medicinal herb Labisia pumila Benth. namely the varieties alata, pumila and lanceolata under CO2 enrichment (1,200 μmol mol-1) combined with four levels of nitrogen fertilization (0, 90, 180 and 270 kg N ha-1). No varietal differences were observed, however, as the levels of nitrogen increased from 0 to 270 kg N ha-1, the production of TP and TF decreased in the order leaves>roots>stems. The production of TP and TF was related to increased total non structural carbohydrate (TNC), where the increase in starch content was larger than that in sugar concentration. Nevertheless, the regression analysis exhibited a higher influence of soluble sugar concentration (r² = 0.88) than starch on TP and TF biosynthesis. Photosynthesis, on the other hand, displayed a significant negative relationship with TP and TF production (r² = -0.87). A decrease in photosynthetic rate with increasing secondary metabolites might be due to an increase in the shikimic acid pathway that results in enhanced production of TP and TF. Chlorophyll content exhibited very significant negative relationships with total soluble sugar, starch and total non structural carbohydrate. |
| first_indexed | 2024-03-06T07:40:01Z |
| format | Article |
| id | upm.eprints-17302 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-03-06T07:40:01Z |
| publishDate | 2011 |
| publisher | MDPI |
| record_format | dspace |
| spelling | upm.eprints-173022015-09-23T01:09:17Z http://psasir.upm.edu.my/id/eprint/17302/ The relationship between phenolics and flavonoids production with total non structural carbohydrate and photosynthetic rate in labisia pumila benth. under high CO2 and nitrogen fertilization. Ibrahim, Mohd Hafiz Jaafar, Hawa Z. E. Rahmat, Asmah Abdul Rahman, Zaharah A factorial split plot 4 × 3 experiment was designed to examine and characterize the relationship among production of secondary metabolites (total phenolics, TP; total flavonoids, TF), carbohydrate content and photosynthesis of three varieties of the Malaysian medicinal herb Labisia pumila Benth. namely the varieties alata, pumila and lanceolata under CO2 enrichment (1,200 μmol mol-1) combined with four levels of nitrogen fertilization (0, 90, 180 and 270 kg N ha-1). No varietal differences were observed, however, as the levels of nitrogen increased from 0 to 270 kg N ha-1, the production of TP and TF decreased in the order leaves>roots>stems. The production of TP and TF was related to increased total non structural carbohydrate (TNC), where the increase in starch content was larger than that in sugar concentration. Nevertheless, the regression analysis exhibited a higher influence of soluble sugar concentration (r² = 0.88) than starch on TP and TF biosynthesis. Photosynthesis, on the other hand, displayed a significant negative relationship with TP and TF production (r² = -0.87). A decrease in photosynthetic rate with increasing secondary metabolites might be due to an increase in the shikimic acid pathway that results in enhanced production of TP and TF. Chlorophyll content exhibited very significant negative relationships with total soluble sugar, starch and total non structural carbohydrate. MDPI 2011-01 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/17302/1/The%20relationship%20between%20phenolics%20and%20flavonoids%20production%20with%20total%20non%20structural%20carbohydrate%20and%20photosynthetic%20rate%20in%20labisia%20pumila%20benth.pdf Ibrahim, Mohd Hafiz and Jaafar, Hawa Z. E. and Rahmat, Asmah and Abdul Rahman, Zaharah (2011) The relationship between phenolics and flavonoids production with total non structural carbohydrate and photosynthetic rate in labisia pumila benth. under high CO2 and nitrogen fertilization. Molecules, 16 (1). pp. 162-174. ISSN 1431-5157, ESSN: 1420-3049 http://www.mdpi.org/molecules/ Herbs - Therapeutic use - Malaysia. Medicinal plants - Malaysia. 10.3390/molecules16010162. English |
| spellingShingle | Herbs - Therapeutic use - Malaysia. Medicinal plants - Malaysia. Ibrahim, Mohd Hafiz Jaafar, Hawa Z. E. Rahmat, Asmah Abdul Rahman, Zaharah The relationship between phenolics and flavonoids production with total non structural carbohydrate and photosynthetic rate in labisia pumila benth. under high CO2 and nitrogen fertilization. |
| title | The relationship between phenolics and flavonoids production with total non structural carbohydrate and photosynthetic rate in labisia pumila benth. under high CO2 and nitrogen fertilization. |
| title_full | The relationship between phenolics and flavonoids production with total non structural carbohydrate and photosynthetic rate in labisia pumila benth. under high CO2 and nitrogen fertilization. |
| title_fullStr | The relationship between phenolics and flavonoids production with total non structural carbohydrate and photosynthetic rate in labisia pumila benth. under high CO2 and nitrogen fertilization. |
| title_full_unstemmed | The relationship between phenolics and flavonoids production with total non structural carbohydrate and photosynthetic rate in labisia pumila benth. under high CO2 and nitrogen fertilization. |
| title_short | The relationship between phenolics and flavonoids production with total non structural carbohydrate and photosynthetic rate in labisia pumila benth. under high CO2 and nitrogen fertilization. |
| title_sort | relationship between phenolics and flavonoids production with total non structural carbohydrate and photosynthetic rate in labisia pumila benth under high co2 and nitrogen fertilization |
| topic | Herbs - Therapeutic use - Malaysia. Medicinal plants - Malaysia. |
| url | http://psasir.upm.edu.my/id/eprint/17302/1/The%20relationship%20between%20phenolics%20and%20flavonoids%20production%20with%20total%20non%20structural%20carbohydrate%20and%20photosynthetic%20rate%20in%20labisia%20pumila%20benth.pdf |
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