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بررسی تأثیر نوع ریزنمونه و تنظیم‌کننده‌های رشد بر کالوس‌زایی، باززایی غیرمستقیم ساقه‌چه و ریشه‌زایی گیاه دارویی سرخارگل (Echinacea angustifolia DC.) | ||
| تحقیقات گیاهان دارویی و معطر ایران | ||
| مقاله 10، دوره 33، شماره 1 - شماره پیاپی 81، اردیبهشت 1396، صفحه 103-111 اصل مقاله (234.76 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijmapr.2017.109715 | ||
| نویسندگان | ||
| سمانه خلیلی1؛ احمد معینی* 2؛ محمد عبدلی3 | ||
| 1دانشجوی کارشناسی ارشد، گروه اصلاح نباتات، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران، ایران | ||
| 2دانشیار، گروه اصلاح نباتات، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران، ایران | ||
| 3استادیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه ملایر، ایران | ||
| چکیده | ||
| سرخارگل، یکی از گیاهان دارویی و با ارزش و از منابع مهم اسید شیکوریک است. در این پژوهش کالوس‌زایی، باززایی غیرمستقیم و ریشه‌زایی ساقه‌چه در گونه Echinacea angustifolia DC. بررسی گردید. در دو آزمایش جداگانه، اثرات نوع ریزنمونه (برگ، دمبرگ و ریشه) و غلظت ماده تنظیم‌کننده رشد NAA (0.5، 1 و 1.5 میلی‌گرم در لیتر) بر میزان کالوس‌زایی و نیز اثرات نوع ریزنمونه (برگ، دمبرگ و ریشه) و غلظت ماده تنظیم‌کننده رشد BAP (3، 4 و 5 میلی‌گرم در لیتر) بر میزان باززایی غیرمستقیم ساقه‌چه بررسی شد. این آزمایش‌ها به‌صورت فاکتوریل و در قالب طرح کاملاً تصادفی انجام شدند. همچنین در آزمایش دیگری اثر غلظت تنظیم‌کننده رشد IBA (0.5، 1، 1.5 و 2 میلی‌گرم در لیتر) بر ریشه‌زایی ساقه‌چه‌های باززایی شده در قالب طرح کاملاً تصادفی بررسی شد. در بررسی کالوس‌زایی اختلاف آماری معنی‌داری بین عوامل مورد مطالعه مشاهده نشد ولی اثرات مورد مطالعه در بررسی ساقه‌چه‌زایی و ریشه‌زایی در سطح 1% معنی‌دار بودند. بیشترین میزان باززایی غیرمستقیم ساقه‌چه (72%) از ریزنمونه برگ و با استفاده از BAP در غلظت 4 میلی‌گرم در لیتر و بیشترین درصد ساقه‌چه‌های ریشه‌دار شده یا به‌عبارتی بیشترین درصد گیاه کامل (38% و 40%)، به‌ترتیب با استفاده از IBA در غلظت‌های 1 و 1.5 میلی‌گرم در لیتر بدست آمدند. این پژوهش قابلیت خوب این گونه را برای کالوس‌زایی و تولید گیاهچه‌های درون شیشه‌ای به‌منظور استفاده‌های مختلف ازجمله در برنامه‌های تکثیر، انتقال ژن و تولید گیاهان تراریخت نشان داد. | ||
| کلیدواژه‌ها | ||
| سرخارگل (Echinacea angustifolia DC.)؛ کشت درون شیشه‌ای؛ باززایی غیرمستقیم ساقه‌چه؛ BAP؛ NAA؛ IBA | ||
| عنوان مقاله [English] | ||
| Investigation of explant and plant growth regulators on callogenesis, indirect shoot regeneration and shoot rooting in Echinacea angustifolia DC. | ||
| نویسندگان [English] | ||
| S. Khalili1؛ A. Moieni2؛ M. Abdoli3 | ||
| 1M.Sc. Student, Department of Plant Breeding and Biotechnology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran | ||
| 2Department of Plant Breeding and Biotechnology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran | ||
| 3Department of Agronomy and Plant Breeding, Faculty of Agriculture, Malayer University, Malayer, Iran | ||
| چکیده [English] | ||
| Echinacea is one of the most important medicinal plants and an important source of cichoric acid. In this research, callus induction, indirect shoot regeneration, and shoot rooting of Echinacea angustifolia DC. were investigated. The effects of explant (leaf, petiole and root) and NAA concentrations (0.5, 1 and 1.5 mg l-1) on callus induction as well as the effects of explant (leaf, petiole and root) and BAP concentrations (3, 4 and 5 mg l-1) on the indirect shoot regeneration of callus were evaluated in two separated experiments. The study was conducted as factorial in a completely randomized design (CRD). The effects of IBA concentrations (0.5, 1, 1.5 and 2 mg l-1) on shoot rooting were also investigated in a completely randomized design. The effects of the factors studied on the callogenesis were not significant while these factors had significant effects on the shoot regeneration and rooting at 1% probability level. In general, the results indicated that the highest indirect shoot regeneration (72%) was obtained from the leaf explant and by the use of 4 mgl-1 BAP. In addition, the highest shoot rooting (38% and 40%) was obtained using 1 and 1.5 mgl-1 IBA. The good potential of this species for indirect shoot regeneration was shown in this research. These results can be used in micropropagation programs, gene transfer, and transgenic plants production. | ||
| کلیدواژه‌ها [English] | ||
| Echinacea angustifolia DC, In vitro culture, indirect shoot regeneration, BAP, NAA, IBA | ||
| مراجع | ||
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