کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6407413 | 1628833 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In vitro propagation and ex vitro rooting of Caralluma edulis (Edgew.) Benth. & Hook. f.: An endemic and endangered edible plant species of the Thar Desert
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کلمات کلیدی
NaAPFDNOAIBAEx vitro rootingPGRs6-benzyladenine - 6-بنزیل آدنینMurashige and Skoog (1962) medium - Murashige و Skoog (1962) متوسط استindole-3-butyric acid - اسید Indole-3-Butyricα-naphthaleneacetic acid - اسید α-نفتالین استیکNaphthoxyacetic acid - اسید نابوتوکسیکاتیکin vitro propagation - انتشار in vitrophoton flux density - تراکم شار فوتونPlant growth regulators - تنظیم کننده های رشد گیاهیGermplasm conservation - حفاظت ژرمپلاسمRelative humidity - رطوبت نسبیActivated charcoal - زغال چوب فعالCytokinins - سیتوکینین هاkinetin - کینتین
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش باغداری
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Caralluma edulis (Edgew.) Benth. & Hook. f., (family Asclepiadaceae), rich source of antioxidants, is an edible and nutraceutically important plant of the extreme arid regions of the Thar Desert. Anthropogenic activities on established sand dunes, habitat destruction and harvesting/grazing of complete plant prior to its reproductive maturity restrict the propagation by sexual means. Poor reproduction and seed set have put adverse pressure on native populations of this endemic and slow multiplying plant of Indian Thar Desert. Though it is categorized as endangered plant species, there is need for revision of its status as this species can be spotted rarely in its habitat. There is also need for development of non-conventional methods for propagation and conservation of C. edulis. Therefore, in vitro methods are good alternative for multiplication, propagation and germplasm conservation of this nutraceutically important plant. We used nodal segments obtained from field grown plants as explant for culture initiation. Murashige and Skoog (1962) medium containing 6-benzyladenine (BA) (2.0 mg lâ1) + additives proved optimum for axillary shoot bud induction and produced 3-4 shoots. Shoots were amplified by repetitive transfer of original explant and by subculturing of in vitro raised shoots on various concentrations of cytokinins (BA and Kinetin [Kn]) alone and in combination with auxin (α-naphthaleneacetic acid [NAA]). A high rate (35.30 ± 1.55 per culture vessel) of shoot multiplication was achieved on MS medium fortified with 0.5 mg lâ1 BA + 0.5 mg lâ1 Kn + 0.1 mg lâ1 NAA and additives. In vitro produced shoots were rooted under in vitro as well as ex vitro conditions. Half strength MS medium containing 1.5 mg lâ1 indole-3-butyric acid (IBA) was optimal for root induction under in vitro conditions. More than 95% shoots were rooted ex vitro, when in vitro raised shoots were treated with IBA (300 mg lâ1) for 4 min. Rooted plantlets by both methods were hardened under different conditions of humidity and temperature in the greenhouse. The percentage survival rate of ex vitro rooted plants was higher (97.1 ± 2.02%) in comparison to in vitro rooted plants (87.6 ± 2.45%). The described protocol can be efficiently used for the large scale propagation and conservation of germplasm of this edible, endemic and endangered plant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scientia Horticulturae - Volume 165, 22 January 2014, Pages 175-180
Journal: Scientia Horticulturae - Volume 165, 22 January 2014, Pages 175-180
نویسندگان
Ashok Kumar Patel, Mahendra Phulwaria, Manoj K. Rai, Amit Kumar Gupta, Smita Shekhawat, N.S. Shekhawat,