Vigna caracalla L. Verdc. Bitkisinde In Vitro Klonal Mikroçoğaltım

Yıl 2020, , 753 - 767, 25.09.2020

Halide Hande Güngör , Begüm Güler , Meltem Bayraktar , Aynur Gürel

https://doi.org/10.35414/akufemubid.634363

Cited By: 1

Öz

Vigna caracalla L. Verdc., “İzmir sarmaşığı’’ olarak da adlandırılan, hoş kokulu güzel çiçekleriyle dikkat çeken bir süs bitkisidir. Bu çalışmada, Vigna caracalla L. Verdc. bitkisinde in vitro klonal mikroçoğaltımın gerçekleştirilmesi için etkili bir protokolün geliştirilmesi amaçlanmıştır. Tohumlar, farklı sterilizasyon yöntemlerine maruz bırakıldıktan sonra MS besin ortamlarında kültüre alınmışlar. En yüksek sterilizasyon (%93.33) oranı (%93.33); 1 dk %70 etil alkol, 4 dk %0.1 HgCl2 uygulamasının ardından, 7 saat suda bekletilen tohumlarda elde edilmiştir. En yüksek çimlenme yüzdesi (%95.24), N6 besin ortamı içeren 250 mL’lik erlenlerde gözlenmiştir. En yüksek ortalama sürgün uzunluğu (5.05 cm) 1 mg/L IBA + 0.5 mg/L BAP içeren MS besin ortamında kültüre alınan sürgün ucu eksplantlarından elde edilmiştir. Jelleştirici ajan, ışık şiddeti ve eksplant tipinin sürgün rejenerasyonuna etkisinin belirlenmesi için yapılan denemelerde ise en yüksek çoğaltım katsayısı (1.71) ve yaprak boyu (0.82 cm), Duchefa agar ile katılaştırılmış N6 besin ortamında 4200 lüks ışık şiddetine maruz bırakılan nod eksplantlarından elde edilmiştir. Bu çalışma kapsamında, fazla hiperhidrisite göstermeyen ve çoğaltım oranı daha yüksek olan 16 adet klonun mikroçoğaltım denemelerinde uygun reaksiyon verdiği belirlenmiştir. En yüksek kök rejenerasyonu (%85.71), Fluka agar ile katılaştırılmış N6 besin ortamındaki 4200 lüks ışık şiddetine maruz bırakılan sürgün ucu eksplantlarında saptanmıştır. Köklü sürgünler, %70 başarı yüzdesi ile aklimatize edilmişlerdir.

Anahtar Kelimeler

Vigna caracalla L. Verdc., in vitro, klonal mikroçoğaltım, çoğaltım katsayısı

Destekleyen Kurum

Aliye Üster Vakfı

Teşekkür

Bu çalışmayı ''Selluka-İzmir Sarmaşığı (Vigna caracalla L. verdc.) Bitkisinin In vitro Klonal Mikroçoğaltımı' başlıklı proje olarak Eylül 2017- Eylül 2018 tarihleri arasında destekleyen ALİYE ÜSTER VAKFI’na teşekkür ederiz.

In Vitro Clonal Micropropagation of Vigna caracalla L. Verdc.

Öz

Vigna caracalla L. Verdc. is an ornamental plant, having with its beautiful odorous remarkable flowers, named as "İzmir's ivy". In this study, it was aimed to develop an effective protocol for in vitro clonal micropropagation in Vigna caracalla L. Verdc. plant. The seeds were cultured in MS medium after exposed to different sterilization methods. The highest percentage of sterilization (93.33%) were achieved when the seeds were soaked in 70% ethyl alcohol for 1 min, 0.1% HgCl2 for 4 min and then kept sterilized distilled water for 7 hours. The highest percentage of germination (95.24%) was observed in 250 mL Erlenmeyer flasks containing N6 medium. The highest shoot length (5.05 cm) was obtained from shoot tip explants cultured in MS medium containing 1 mg/L IBA + 0.5 mg/L BAP. In the experiments carried out to determine the effect of gelling agent, light intensity and explant type on shoot regeneration, the highest multiplication coefficient (1.71) and leaf length (0.82 cm) was achieved in node explants cultured in N6 medium solidified with Duchefa agar and exposed to 4200 lux light intensity. Within the scope of this study, it was determined that 16 clones that did not show much hyperhydricity and had higher multiplication rate gave appropriate responses for micropropagation experiments. The highest root regeneration (85.71%) was achieved from shoot tip explants cultured in N6 medium solidified with Fluka agar and exposed to 4200 lux light intensity. The rooted plantlets were acclimatized with 70% success.

Anahtar Kelimeler

Vigna caracalla L. Verdc., In vitro, Clonal micropropagation, Multiplication coefficient

Kaynakça

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