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Enhanced in vitro shoot proliferation through nodal explants of Staurogyne repens (Nees) Kuntze

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Abstract

In this study, multiple and rapid propagations of Staurogyne repens (Nees) Kuntze with tissue culture techniques were aimed. The nodal explants of S. repens were cultured for multiple shoot regeneration in culture medium supplemented with different rates of 6-Benzilaminopurin (BAP) and Kinetin (KIN) alone (0.25–1.50 mg/L) or combinations with 0.25 mg/L Indole-3-acetic acid (IAA). Generally, shoot regeneration capabilities of the explants were high due to the growth regulators used. Shoot regeneration frequencies were ranked between 77.77% and 100.00% in BAP-IAA and KIN-IAA applications. In BAP-IAA application, the average number of shoots was recorded between 2.53–16.11 shoots/explant and the highest number of shoots per explant (16.11 shoots/explant) was obtained in culture medium containing 1.25 mg/L BAP. As the BAP level used increased, the number of regenerated shoots increased. In KIN-IAA application, mean shoot counts were recorded as 2.66–10.27 shoots/explant, and maximum shoots per explant (10.27 shoots/explant) was determined in culture medium containing 0.50 mg/L KIN. When shoot lengths were examined, longer shoots were seen in KIN-IAA application compared to BAP-IAA application. The longest shoot was obtained as 2.82 cm in the culture medium fortified with 1.50 mg/L KIN. Regenerated shoots for in vitro rooting were transferred to the growth culture containing different concentrations of IAA and 1-Naphthaleneacetic acid (NAA). The best values in terms of number and length of roots per shoot were determined in a growth culture containing 0.25 mg/L IAA. The rooted shoots were accustomed to external conditions successfully.

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Abbreviations

BAP:

6-Benzilaminopurin

DMTR:

Duncan’s multiple range test

H2O2 :

Hydrogen peroxide

IAA:

Indole-3-acetic acid

KIN:

Kinetin

LB:

Lower Bound

MS:

Murashige and Skoog

NAA:

1-Naphthaleneacetic acid

TDZ:

Thidiazuron

UB:

Upper Bound

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Correspondence to Muhammet Dogan.

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Kose, M.S.H., Dogan, M. & Sadi, G. Enhanced in vitro shoot proliferation through nodal explants of Staurogyne repens (Nees) Kuntze. Biologia 76, 1053–1061 (2021). https://doi.org/10.2478/s11756-020-00658-w

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  • DOI: https://doi.org/10.2478/s11756-020-00658-w

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