Callus induction and chemical characterization of cell suspension cultures of jojoba (Simmondsia chinensis L.)

Muhammad Akram, Faheem Aftab

Abstract


Jojoba (Simmondsia chinensis L.) oil is also known as liquid wax or fixed oil. It is an important metabolite of jojoba having commercial importance in cosmetics as well as a potential biofuel source. We presented an efficient system for in vitro establishment of cell suspension cultures (CSC) from proliferating friable calluses. For this purpose, cotyledon, internode, and leaf explants were cultured on MS medium + 1, 2, 4, 6, 8 or 10 µM 2, 4-Dichlorophenoxyacetic acid (2, 4-D), α-Naphthalene acetic acid (NAA) alone or in combination with 1 or 2 µM N6-benzylaminopurine (BAP) or Kinetin. Results demonstrated that 100% healthy, friable and variegated calluses were obtained on 8 µM, 10 µM 2, 4-D or 2, 4-D 10 µM + 2 µM BAP and represented as callus lines (CL) CL-1, CL-2 or CL-3, respectively, after 38 days. One-gram callus tissue per CL was then immersed in the respective liquid medium and agitated on an orbital shaker at 60-70 rpm under the growth room conditions (25 ± 2 °C, 16 h light period) for the preparation of CSC. After 15 days, CSC was sieved and large clumps were removed. Growth measurement of CSC was determined by cell counting, packed cell volume (PCV) and cell viability. The highest number of viable cells was obtained at 2.57 OD with CL-3, where PCV was highest (0.35 ml) on CL-1 of 38 days old calluses. 2,3,5-Triphenyltetrazolium chloride was a reliable approach for the determination of cell viability of CSC.

Keywords


2,3,5-Triphenyltetrazolium chloride, callus, cell suspension culture, cell viability, jojoba, packed cell volume

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References


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DOI: https://doi.org/10.33865/wjb.006.03.0437

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