期刊
MOLECULES
卷 26, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/molecules26113229
关键词
shoot multiplication; callus induction; plant growth regulator; antioxidant activities; polyphenolic activities; Labisia pumila var; alata
资金
- Ministry of Higher Education Malaysia [5526700]
- Universiti Putra Malaysia [9629000]
The study found that in vitro-cultured callus of L. pumila var. alata displayed significantly higher antioxidant activities and total phenolic and flavonoid content compared to leaf extracts from in vitro plantlets and wild plants. This suggests that callus culture could potentially be utilized for antioxidant and polyphenolic production, meeting pharmaceutical and nutraceutical needs while also conserving the wild L. pumila var. alata.
This study aims to investigate whether the in vitro-cultured L. pumila var. alata has higher antioxidant activity than its wild plant. An 8-week-old L. pumila var. alata nodal segment and leaf explants were cultured onto Murashige and Skoog (MS) medium supplemented with various cytokinins (zeatin, kinetin, and 6-benzylaminopurine (BAP)) for shoot multiplication and auxins (2,4-dichlorophenoxyacetic acid (2,4-D) and picloram) for callus induction, respectively. The results showed that 2 mg/L zeatin produced the optimal results for shoot and leaf development, and 0.5 mg/L 2,4-D produced the highest callus induction results (60%). After this, 0.5 mg/L 2,4-D was combined with 0.25 mg/L cytokinins and supplemented to the MS medium. The optimal results for callus induction (100%) with yellowish to greenish and compact texture were obtained using 0.5 mg/L 2,4-D combined with 0.25 mg/L zeatin. Leaves obtained from in vitro plantlets and wild plants as well as callus were extracted and analyzed for their antioxidant activities (DPPH and FRAP methods) and polyphenolic properties (total flavonoid and total phenolic content). When compared with leaf extracts of in vitro plantlets and wild plants of L. pumila var. alata, the callus extract displayed significantly higher antioxidant activities and total phenolic and flavonoid content. Hence, callus culture potentially can be adapted for antioxidant and polyphenolic production to satisfy pharmaceutical and nutraceutical needs while conserving wild L. pumila var. alata.
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