Mineral manipulation and antioxidative studies in carnation - Dianthus caryophyllus L.
Öz
|
The effect of ammonium nitrate (NH4NO3)
on shoot bud induction and proliferation from nodal explants of Dianthus caryophyllus L. was
investigated. Shoot buds were induced on MS medium supplemented with 2.2µM
BAP and 2.7µM NAA. The induced shoot buds were sub-cultured on medium with
same hormonal composition for their proliferation. Both shoot bud induction
and proliferation media were supplemented with different levels of NH4NO3
(0,
5.15, 10.3, 20.61*, 41.20 mM).
NH4NO3 highly influenced the shoot bud formation and
their subsequent proliferation. In the
present investigation, NH4NO3 at one-fouth of MS level
was found to be beneficial for controlling the hyperhydricity of regenerated
shoots whereas the number of shoots was comparable to the control cultures.
The MS or higher levels of NH4NO3 were observed to
suppress healthy morphogenesis and resulted in increased hyperhydricity. The physiological disorder of
hyperhydricity, commonly observed in carnation micropropagation, was also
controlled with 100 % efficiency by reducing NH4NO3 at one-fouth of MS level. Antioxidant
enzyme activity was minimum in normal and healthy shoots. The activity
increased with increase in the number of hyperhydric shoots. |
Anahtar Kelimeler
Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
-
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
15 Ağustos 2017
Gönderilme Tarihi
15 Ağustos 2017
Kabul Tarihi
21 Temmuz 2017
Yayımlandığı Sayı
Yıl 2017 Cilt: 3 Sayı: 2