UV-B irradiation effects on pigments and cytological behaviour of callus in sainfoin (Onobrychis viciifolia Scop.)
Purpose: This study aims to determine the appropriate irradiation dose for induction of somaclonal variation in mass of unorganized parenchyma cells derived from sainfoin (Onobrychis viciifolia) tissues. Design/methodology/approach: To investigate the feasibility of UV-B irradiation (312 nm), seeds...
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my.um.eprints.212702019-05-21T06:32:14Z http://eprints.um.edu.my/21270/ UV-B irradiation effects on pigments and cytological behaviour of callus in sainfoin (Onobrychis viciifolia Scop.) Mohajer, Sadegh Taha, Rosna Mat Mohajer, Minoo Anuar, Nordiyanah Q Science (General) QH Natural history Purpose: This study aims to determine the appropriate irradiation dose for induction of somaclonal variation in mass of unorganized parenchyma cells derived from sainfoin (Onobrychis viciifolia) tissues. Design/methodology/approach: To investigate the feasibility of UV-B irradiation (312 nm), seeds and callus of sainfoin were exposed to five different intensities (20-100 per cent) for evaluating the effectiveness of phytochemical constituents and cellular behaviour. Findings: Although percentage of seed viability reduced in 20 per cent intensity of UV-B irradiation compared with control seeds, the germination speed significantly enhanced from 3.58 to 5.42. The spectrophotometer analysis confirmed that concentrations of chlorophyll (a and b) decreased after UV-B exposure as compared with control callus. Also, carotenoid content showed significant differences among treated calli. Flavonoid and phenolic contents were observed to gradually increase when the non-irradiated callus subjected to 40 and 60 per cent intensities of UV-B irradiation, respectively. Observation on cellular behaviour such as determination of nuclear and cell areas, mitotic index and chromosomal aberrations were also detected to change in different intensities of UV-B irradiation. Fragmented and aneuploidy aberrations were only observed in exposed cells with more than 40 per cent intensity of UV-B irradiation. Originality/value: In reality, radiocytological evaluation was proven to be essential in deducing the effectiveness of UV-B irradiation to induce somaclonal variation in callus tissue of sainfoin. Emerald 2018 Article PeerReviewed Mohajer, Sadegh and Taha, Rosna Mat and Mohajer, Minoo and Anuar, Nordiyanah (2018) UV-B irradiation effects on pigments and cytological behaviour of callus in sainfoin (Onobrychis viciifolia Scop.). Pigment & Resin Technology, 47 (6). pp. 496-501. ISSN 0369-9420 https://doi.org/10.1108/PRT-11-2016-0102 doi:10.1108/PRT-11-2016-0102 |
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Q Science (General) QH Natural history Mohajer, Sadegh Taha, Rosna Mat Mohajer, Minoo Anuar, Nordiyanah UV-B irradiation effects on pigments and cytological behaviour of callus in sainfoin (Onobrychis viciifolia Scop.) |
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Purpose: This study aims to determine the appropriate irradiation dose for induction of somaclonal variation in mass of unorganized parenchyma cells derived from sainfoin (Onobrychis viciifolia) tissues. Design/methodology/approach: To investigate the feasibility of UV-B irradiation (312 nm), seeds and callus of sainfoin were exposed to five different intensities (20-100 per cent) for evaluating the effectiveness of phytochemical constituents and cellular behaviour. Findings: Although percentage of seed viability reduced in 20 per cent intensity of UV-B irradiation compared with control seeds, the germination speed significantly enhanced from 3.58 to 5.42. The spectrophotometer analysis confirmed that concentrations of chlorophyll (a and b) decreased after UV-B exposure as compared with control callus. Also, carotenoid content showed significant differences among treated calli. Flavonoid and phenolic contents were observed to gradually increase when the non-irradiated callus subjected to 40 and 60 per cent intensities of UV-B irradiation, respectively. Observation on cellular behaviour such as determination of nuclear and cell areas, mitotic index and chromosomal aberrations were also detected to change in different intensities of UV-B irradiation. Fragmented and aneuploidy aberrations were only observed in exposed cells with more than 40 per cent intensity of UV-B irradiation. Originality/value: In reality, radiocytological evaluation was proven to be essential in deducing the effectiveness of UV-B irradiation to induce somaclonal variation in callus tissue of sainfoin. |
format |
Article |
author |
Mohajer, Sadegh Taha, Rosna Mat Mohajer, Minoo Anuar, Nordiyanah |
author_facet |
Mohajer, Sadegh Taha, Rosna Mat Mohajer, Minoo Anuar, Nordiyanah |
author_sort |
Mohajer, Sadegh |
title |
UV-B irradiation effects on pigments and cytological behaviour of callus in sainfoin (Onobrychis viciifolia Scop.) |
title_short |
UV-B irradiation effects on pigments and cytological behaviour of callus in sainfoin (Onobrychis viciifolia Scop.) |
title_full |
UV-B irradiation effects on pigments and cytological behaviour of callus in sainfoin (Onobrychis viciifolia Scop.) |
title_fullStr |
UV-B irradiation effects on pigments and cytological behaviour of callus in sainfoin (Onobrychis viciifolia Scop.) |
title_full_unstemmed |
UV-B irradiation effects on pigments and cytological behaviour of callus in sainfoin (Onobrychis viciifolia Scop.) |
title_sort |
uv-b irradiation effects on pigments and cytological behaviour of callus in sainfoin (onobrychis viciifolia scop.) |
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Emerald |
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2018 |
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http://eprints.um.edu.my/21270/ https://doi.org/10.1108/PRT-11-2016-0102 |
_version_ |
1643691515774500864 |
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13.160551 |