biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 46:297-300, 2003 | DOI: 10.1023/A:1022875332607

Somatic Embryogenesis or Shoot Formation Following High 2,4-D Pulse-Treatment of Mature Embryos of Paspalum scrobiculatum

Vikrant1, A. Rashid2
1 Department of Botany, University of Delhi, Delhi-, India
2 Department of Botany, University of Delhi, Delhi-, India

Mature zygotic embryos of Paspalum scrobiculatum L. cv. PSC 1 on MS or N6 nutrient medium supplemented with various concentrations of 2,4-D (4.5 - 22.5 µM) formed embryogenic callus, which differentiated into somatic embryos within 5 weeks of culture. The somatic embryos after transfer to hormone-free regeneration medium germinated and formed plantlets. Of the two nutrient formulations, N6 was relatively better than MS for somatic embryogenesis. A culture for 11 d on 100 µM 2,4-D was essential for the establishment of an embryogenic callus. Shorter duration, 4-d or 7-d culture on 2,4-D medium, supported some proliferation and subsequent differentiation into shoot-buds or multiple-shoots, in high-frequency cultures. This is first instance in monocots of a controlled regeneration response; either somatic embryogenesis or shoot formation.

Keywords: auxin; graminaceous plants; millet; organogenesis; regeneration
Subjects: auxins; in vitro culture, plant regeneration, organogenesis; in vitro culture, somatic embryogenesis; millet, somatic embryogenesis; Paspalum scrobiculatum; Poaceae, somatic embryogenesis

Prepublished online: March 1, 2003; Published: September 1, 2003  Show citation

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Vikrant,, & Rashid, A. (2003). Somatic Embryogenesis or Shoot Formation Following High 2,4-D Pulse-Treatment of Mature Embryos of Paspalum scrobiculatum. Biologia plantarum46(2), 297-300. doi: 10.1023/A:1022875332607
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