Highly efficient proliferation and regeneration of protocorm-like bodies (PLBS) of the threatened orchid, Phalaenopsis bellina
Phalaenopsis bellina is an important indigenous fragrant orchid threatened with extinction. In this study, we evaluated the effect of medium strength, sucrose, nitrogen (NH4NO3) and potato extract on proliferation of P. bellina protocorm-like bodies (PLBs) to improve micropropagation in this species...
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| Format: | Article |
| Language: | English |
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Penerbit Universiti Kebangsaan Malaysia
2018
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| Online Access: | http://journalarticle.ukm.my/12110/1/03%20Yee-Chern%20Chew.pdf |
| _version_ | 1796931617740029952 |
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| author | Chew, Yee-Chern Muhammad Husni Abd Halim, Wan Muhamad Asrul Nizam Wan Abdullah, Janna Ong Abdullah, Lai, Kok-Song |
| author_facet | Chew, Yee-Chern Muhammad Husni Abd Halim, Wan Muhamad Asrul Nizam Wan Abdullah, Janna Ong Abdullah, Lai, Kok-Song |
| author_sort | Chew, Yee-Chern |
| collection | UKM |
| description | Phalaenopsis bellina is an important indigenous fragrant orchid threatened with extinction. In this study, we evaluated the effect of medium strength, sucrose, nitrogen (NH4NO3) and potato extract on proliferation of P. bellina protocorm-like bodies (PLBs) to improve micropropagation in this species. Optimal treatment for PLBs proliferation rate with an average fresh weight (FW) of 0.97±0.16 g was obtained through culturing on half strength (½) MS medium containing 20 g/L sucrose, 15 mM NH4NO3 and 20% w/v potato extract supplemented with 0.8 μM 2,4 dichlorophenoxyacetic acid (2,4-D). The optimal treatment produced large, healthy and greenish PLBs with reduction in the occurrence of culture browning. In contrast, treatments with high potato extract (>20% w/v) or NH4NO3 (>30 mM) concentrations tend to have inhibitory effect and resulted in low PLBs proliferation rate, with an average FW of 0.77±0.15 g and 0.69±0.15 g, respectively. Plant regeneration of PLBs was achieved on plant growth regulator (PGR)-free ½ MS medium. In total, 60 healthy PLBs from the optimal treatment were successfully regenerated, acclimatized with 100% survival percentage and grew well in a mixture of soil, sand and vermicompost (8:4:2 (w/w/w)). With the optimal treatment, PLBs proliferation rate was enhanced by 27.63%. Our findings offer an improved micropropagation protocol of the endangered P. bellina for conservation and commercial production. |
| first_indexed | 2024-03-06T04:20:37Z |
| format | Article |
| id | ukm.eprints-12110 |
| institution | Universiti Kebangsaan Malaysia |
| language | English |
| last_indexed | 2024-03-06T04:20:37Z |
| publishDate | 2018 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| record_format | dspace |
| spelling | ukm.eprints-121102018-09-28T21:53:12Z http://journalarticle.ukm.my/12110/ Highly efficient proliferation and regeneration of protocorm-like bodies (PLBS) of the threatened orchid, Phalaenopsis bellina Chew, Yee-Chern Muhammad Husni Abd Halim, Wan Muhamad Asrul Nizam Wan Abdullah, Janna Ong Abdullah, Lai, Kok-Song Phalaenopsis bellina is an important indigenous fragrant orchid threatened with extinction. In this study, we evaluated the effect of medium strength, sucrose, nitrogen (NH4NO3) and potato extract on proliferation of P. bellina protocorm-like bodies (PLBs) to improve micropropagation in this species. Optimal treatment for PLBs proliferation rate with an average fresh weight (FW) of 0.97±0.16 g was obtained through culturing on half strength (½) MS medium containing 20 g/L sucrose, 15 mM NH4NO3 and 20% w/v potato extract supplemented with 0.8 μM 2,4 dichlorophenoxyacetic acid (2,4-D). The optimal treatment produced large, healthy and greenish PLBs with reduction in the occurrence of culture browning. In contrast, treatments with high potato extract (>20% w/v) or NH4NO3 (>30 mM) concentrations tend to have inhibitory effect and resulted in low PLBs proliferation rate, with an average FW of 0.77±0.15 g and 0.69±0.15 g, respectively. Plant regeneration of PLBs was achieved on plant growth regulator (PGR)-free ½ MS medium. In total, 60 healthy PLBs from the optimal treatment were successfully regenerated, acclimatized with 100% survival percentage and grew well in a mixture of soil, sand and vermicompost (8:4:2 (w/w/w)). With the optimal treatment, PLBs proliferation rate was enhanced by 27.63%. Our findings offer an improved micropropagation protocol of the endangered P. bellina for conservation and commercial production. Penerbit Universiti Kebangsaan Malaysia 2018-06 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/12110/1/03%20Yee-Chern%20Chew.pdf Chew, Yee-Chern and Muhammad Husni Abd Halim, and Wan Muhamad Asrul Nizam Wan Abdullah, and Janna Ong Abdullah, and Lai, Kok-Song (2018) Highly efficient proliferation and regeneration of protocorm-like bodies (PLBS) of the threatened orchid, Phalaenopsis bellina. Sains Malaysiana, 47 (6). pp. 1093-1099. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid47bil6_2018/KandunganJilid47Bil6_2018.html |
| spellingShingle | Chew, Yee-Chern Muhammad Husni Abd Halim, Wan Muhamad Asrul Nizam Wan Abdullah, Janna Ong Abdullah, Lai, Kok-Song Highly efficient proliferation and regeneration of protocorm-like bodies (PLBS) of the threatened orchid, Phalaenopsis bellina |
| title | Highly efficient proliferation and regeneration of protocorm-like bodies (PLBS)
of the threatened orchid, Phalaenopsis bellina |
| title_full | Highly efficient proliferation and regeneration of protocorm-like bodies (PLBS)
of the threatened orchid, Phalaenopsis bellina |
| title_fullStr | Highly efficient proliferation and regeneration of protocorm-like bodies (PLBS)
of the threatened orchid, Phalaenopsis bellina |
| title_full_unstemmed | Highly efficient proliferation and regeneration of protocorm-like bodies (PLBS)
of the threatened orchid, Phalaenopsis bellina |
| title_short | Highly efficient proliferation and regeneration of protocorm-like bodies (PLBS)
of the threatened orchid, Phalaenopsis bellina |
| title_sort | highly efficient proliferation and regeneration of protocorm like bodies plbs of the threatened orchid phalaenopsis bellina |
| url | http://journalarticle.ukm.my/12110/1/03%20Yee-Chern%20Chew.pdf |
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