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Haddadi, P., Moieni, A., Karimzadeh, Gh., Abdollahi, M.R.. (1391). Effects of gibberellin, abscisic acid and embryo desiccation on normal plantlet regeneration, secondary embryogenesis and callogenesis in microspore culture of Brassica napus L. cv. PF704. , 2(2), 153-162. doi: 10.22069/ijpp.2012.607
P. Haddadi; A. Moieni; Gh. Karimzadeh; M.R. Abdollahi. "Effects of gibberellin, abscisic acid and embryo desiccation on normal plantlet regeneration, secondary embryogenesis and callogenesis in microspore culture of Brassica napus L. cv. PF704". , 2, 2, 1391, 153-162. doi: 10.22069/ijpp.2012.607
Haddadi, P., Moieni, A., Karimzadeh, Gh., Abdollahi, M.R.. (1391). 'Effects of gibberellin, abscisic acid and embryo desiccation on normal plantlet regeneration, secondary embryogenesis and callogenesis in microspore culture of Brassica napus L. cv. PF704', , 2(2), pp. 153-162. doi: 10.22069/ijpp.2012.607
Haddadi, P., Moieni, A., Karimzadeh, Gh., Abdollahi, M.R.. Effects of gibberellin, abscisic acid and embryo desiccation on normal plantlet regeneration, secondary embryogenesis and callogenesis in microspore culture of Brassica napus L. cv. PF704. , 1391; 2(2): 153-162. doi: 10.22069/ijpp.2012.607

Effects of gibberellin, abscisic acid and embryo desiccation on normal plantlet regeneration, secondary embryogenesis and callogenesis in microspore culture of Brassica napus L. cv. PF704

International Journal of Plant Production
مقاله 5، دوره 2، شماره 2، تیر 2008، صفحه 153-162    اصل مقاله (348.98 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22069/ijpp.2012.607
نویسندگان
P. Haddadi؛ A. Moieni* ؛ Gh. Karimzadeh؛ M.R. Abdollahi
Department of Plant Breeding, Faculty of Agriculture, Tarbiat Modarres University, Tehran, Iran
چکیده
Most of the microspore-derived embryos can not regenerate normally in rapeseed. The effects of gibberellins (GA3), abscisic acid (ABA), and embryo desiccation on normal plantlet regeneration were studied. The donor plants were grown in a growth chamber at day/night temperatures of 15/10˚C with a 16/8h photoperiod, respectively. Microspores were isolated from whole buds of 2.5-3.5mm in length, containing late-uninucleate and early-binucleate microspores, and cultured in modified NLN-13 liquid medium. After 30 days, cotyledonary embryos were transferred to B5 medium. The study of GA3 concentrations (0, 0.05, 0.1, 0.15, 0.2 mg/l)showed that the use of 0.1 and 0.15 mg/l of filter sterilized GA3 were the optimum treatment for normal plantlet production (50% and 44%, respectively). Among the various time periods of embryos desiccation (0, 3, 5, 10, 15, 20 min.), air drying of embryos for 10 min. produced the highest normal plantlets (60%). In the third experiment, 9 desiccation-ABA treatments (T1-T9) were tested. T6 (no desiccation) or T7 (5 min-desiccation) treatments with 40 µM ABA in B5 medium exhibited the highest number of normal plantlets (68% and 63%, respectively).
کلیدواژه‌ها
ABA؛ Brassica napus؛ Embryo Desiccation؛ GA3؛ Plantlet regeneration؛ Rapeseed
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