Characterization and morphological development of oil palm transformed-callus on modified culture media

DOI:

https://doi.org/10.22302/iribb.jur.mp.v92i2.576

Authors

  • Yuli Setiawati Indonesian Oil Palm Research Institute, Jl. Brigjend Katamso No.51, Medan, 20158, North Sumatera, Indonesia
  • Imron Riyadi Indonesian Oil Palm Research Institute, Jl. Brigjend Katamso No.51, Medan, 20158, North Sumatera, Indonesia
  • Dini Astika Sari Indonesian Oil Palm Research Institute, Jl. Brigjend Katamso No.51, Medan, 20158, North Sumatera, Indonesia
  • Rizka Tamania Saptari Indonesian Oil Palm Research Institute, Jl. Brigjend Katamso No.51, Medan, 20158, North Sumatera, Indonesia
  • Masna Maya Sinta Indonesian Oil Palm Research Institute, Jl. Brigjend Katamso No.51, Medan, 20158, North Sumatera, Indonesia
  • Hayati Minarsih Indonesian Oil Palm Research Institute, Jl. Brigjend Katamso No.51, Medan, 20158, North Sumatera, Indonesia
  • Turhadi Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Brawijaya. Jl. Veteran, Malang 65415, East Java, Indonesia
  • Riza Arief Putranto Indonesian Oil Palm Research Institute, Jl. Brigjend Katamso No.51, Medan, 20158, North Sumatera, Indonesia

Keywords:

oil palm
plant development
transformed-callus

Abstract

Genome editing through cisgenesis develops into scientific breakthroughs in accelerating oil palm breeding programs. However, one remaining problem is the low success of transformed-calli regeneration, while its scientific explanation is still underexplored. This study aimed to characterize and regenerate transformed-calli using various amino acids and antioxidants.  Transformed callus that did not regenerate (un-regenerated transformed callus or UTC) after the transformation process was taken, then T-DNA integration was detected using the NPTII gene. Furthermore, the UTC was divided into four types based on morphological characteristics. The four types of UTCs were regenerated on media enriched with glutamine (for Type-1 callus), cysteine and putrescine (for Type-2 callus), and a combination of cysteine and ascorbic acid (for Type-3 and Type-4 callus). The research results obtained NPTII successfully amplified with a band size of 700bp. The results showed that on Type-1 callus, enrichment media with 10 mg L-1 L-glutamine could induce the formation of new nodular structures on UTC Type-1. On Type-2, media enriched with 5 mg L-1 L-cysteine + 20 mg L-1 putrescine increased the density of callus structures. Media enriched with 25 mg L-1 ascorbic acid + 25 mg L-1 L-cysteine could prevent the spread of brown callus on Type-3 callus, while Type-4 callus did not show any response and became dry. Our new findings will facilitate the basic research and unregenerated transformed callus and morphological callus development behavior in oil palm.

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Submitted

01-04-2024

Accepted

31-10-2024

Published

12-11-2024

How to Cite

Setiawati, Y., Riyadi, I., Astika Sari, D., Tamania Saptari, R., Maya Sinta, M., Minarsih, H., Turhadi, & Arief Putranto, R. (2024). Characterization and morphological development of oil palm transformed-callus on modified culture media. Menara Perkebunan, 92(2). https://doi.org/10.22302/iribb.jur.mp.v92i2.576

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