ORGANOGENESIS AND EMBRYOGENESIS IN SEVERAL HYPERICUM PERFORATUM GENOTYPES
St John's wort (Hypericum perforatum) is a valuable plant used as a herbal remedy or in phytopharmaceutical drugs to treat a variety of physical ailments. Much research has been performed to study the biochemical production of secondary metabolites of in vitro cultured plants or organs. However...
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| Veröffentlicht in: | In vitro cellular & developmental biology. Plant 2006-07, Vol.42 (4), p.324-330 |
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| creator | Franklin, G. Dias, A. C P. |
| description | St John's wort (Hypericum perforatum) is a valuable plant used as a herbal remedy or in phytopharmaceutical drugs to treat a variety of physical ailments. Much research has been performed to study the biochemical production of secondary metabolites of in vitro cultured plants or organs. However, all of these studies have looked at the regeneration of plants from explants in only one genotype. In addition, no study has revealed the mechanism of plant regeneration in H. perforatum, i.e. organogenesis or somatic embryogenesis. We found that different genotypes Helos, Topas, Elixir, and Numi responded similarly to regeneration medium. The regeneration responses (i.e. callus, root, or shoot production) of identical explants from different genotypes were similar. However, the source of explant material (leaves, hypocotyls, and roots) from the same genotype had significant effects on the response to media and plant regeneration frequency. Using scanning electron microscopy and light microscopy, the progress of organogenesis and embryogenesis under similar culture conditions was recorded. Root segments were the most responsive explants, producing the maximum number of shoots per explant of all the genotypes. |
| doi_str_mv | 10.1079/IVP2006787 |
| format | Article |
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However, the source of explant material (leaves, hypocotyls, and roots) from the same genotype had significant effects on the response to media and plant regeneration frequency. Using scanning electron microscopy and light microscopy, the progress of organogenesis and embryogenesis under similar culture conditions was recorded. Root segments were the most responsive explants, producing the maximum number of shoots per explant of all the genotypes.</description><identifier>ISSN: 1054-5476</identifier><identifier>EISSN: 1475-2689</identifier><identifier>DOI: 10.1079/IVP2006787</identifier><language>eng</language><publisher>Heidelberg: CABI Publishing</publisher><subject>Developmental Biology/Morphogenesis ; Embryogenesis ; Embryonic growth stage ; Embryos ; Epidermal cells ; genotype ; Genotypes ; hypericum perforatum ; Hypocotyls ; Leaves ; Organogenesis ; Plant cells ; Plant roots ; Plants ; Regeneration ; St John's wort</subject><ispartof>In vitro cellular & developmental biology. 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However, the source of explant material (leaves, hypocotyls, and roots) from the same genotype had significant effects on the response to media and plant regeneration frequency. Using scanning electron microscopy and light microscopy, the progress of organogenesis and embryogenesis under similar culture conditions was recorded. Root segments were the most responsive explants, producing the maximum number of shoots per explant of all the genotypes.</description><subject>Developmental Biology/Morphogenesis</subject><subject>Embryogenesis</subject><subject>Embryonic growth stage</subject><subject>Embryos</subject><subject>Epidermal cells</subject><subject>genotype</subject><subject>Genotypes</subject><subject>hypericum perforatum</subject><subject>Hypocotyls</subject><subject>Leaves</subject><subject>Organogenesis</subject><subject>Plant cells</subject><subject>Plant roots</subject><subject>Plants</subject><subject>Regeneration</subject><subject>St John's wort</subject><issn>1054-5476</issn><issn>1475-2689</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp9kMFLwzAUxoMoOKcX70LxJEI1SZO-5FhnthW2drTbYKfStB1s6Lol28H_3khl3jx9H-_78T3eQ-ie4BeCQb7GyxnFOAQBF6hHGHCfhkJeOo858zmD8BrdWLvFGBNMoIfiNBtFSTpSicrj3IuSd09N37LVeRInXq6WKosm3ng1U1k8WEw9p8M0i-bOOi6duyC_RVfr8sM2d7_aR4uhmg_G_iQdxYNo4usggKOvm6CsKlxLLGou1lxoqCk0YSl0CXXAQRMoJXfXVJJLWVOuWSUYkSEhoqI66KPHrndv2sOpscdi257Mzq0siARGKMXSQc8dVJnWWtOsi73ZfJbmqyC4-PlU8fcpBz908NYeW3MmKWYh4RC4_KnL9aZtd81_Vd9_62nW</recordid><startdate>200607</startdate><enddate>200607</enddate><creator>Franklin, G.</creator><creator>Dias, A. 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C P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b337t-be3acc0d908d58f58b7d27e6a8ba7d357b17a95107c9599d25b4c84196118c2b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Developmental Biology/Morphogenesis</topic><topic>Embryogenesis</topic><topic>Embryonic growth stage</topic><topic>Embryos</topic><topic>Epidermal cells</topic><topic>genotype</topic><topic>Genotypes</topic><topic>hypericum perforatum</topic><topic>Hypocotyls</topic><topic>Leaves</topic><topic>Organogenesis</topic><topic>Plant cells</topic><topic>Plant roots</topic><topic>Plants</topic><topic>Regeneration</topic><topic>St John's wort</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Franklin, G.</creatorcontrib><creatorcontrib>Dias, A. 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In addition, no study has revealed the mechanism of plant regeneration in H. perforatum, i.e. organogenesis or somatic embryogenesis. We found that different genotypes Helos, Topas, Elixir, and Numi responded similarly to regeneration medium. The regeneration responses (i.e. callus, root, or shoot production) of identical explants from different genotypes were similar. However, the source of explant material (leaves, hypocotyls, and roots) from the same genotype had significant effects on the response to media and plant regeneration frequency. Using scanning electron microscopy and light microscopy, the progress of organogenesis and embryogenesis under similar culture conditions was recorded. Root segments were the most responsive explants, producing the maximum number of shoots per explant of all the genotypes.</abstract><cop>Heidelberg</cop><pub>CABI Publishing</pub><doi>10.1079/IVP2006787</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Developmental Biology/Morphogenesis Embryogenesis Embryonic growth stage Embryos Epidermal cells genotype Genotypes hypericum perforatum Hypocotyls Leaves Organogenesis Plant cells Plant roots Plants Regeneration St John's wort |
| title | ORGANOGENESIS AND EMBRYOGENESIS IN SEVERAL HYPERICUM PERFORATUM GENOTYPES |
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