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Nutrient utilization during bioreactor culture, and maturation of somatic embryo cultures of Picea mariana and Picea glauca-engelmannii

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1007/BF02632121
AuthorSearch for: 1; Search for: 1; Search for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada. NRC Plant Biotechnology Institute
FormatText, Article
Subjectspruce; somatic embryo; shake-flask; bioreactor; maturation
Abstract
Embryogenic cell cultures ofPicea mariana (black spruce) and the species complexPicea glauca-engelmannii (interior spruce) were maintained either as suspensions in liquid medium in 250 or 500-ml-capacity shake-flasks, 7-liter-capacity airlift or mechanically stirred bioreactors, or on agar-solidified medium. Cultures from each of the maintenance conditions were subsequently transferred to agar-solidified LP medium containing 40µM (±) -abscisic acid for maturation into cotyledonary stage embryos. For both species, the highest maturation frequency resulted from cultures grown in the airlift bioreactor. With black spruce cells grown in the airlift bioreactor containing LP medium with 60 mM sucrose, a maximum of 7.1 g·liter⁻¹ dry weight and 2892 embryos·ml−1 were obtained after 15 days. For interior spruce cells, a maximum dry weight of 5.9 g·liter⁻¹ and 2698 embryos·ml⁻¹ were obtained after 21 to 30 days. During culture over 2 wk, ammonia was almost completely utilized by both species, wherease nitrate was depleted to 40% of the initial concentration. Sucrose was rapidly hydrolyzed to glucose and fructose by both species. Black spruce cultures preferentially metabolized glucose, whereas interior spruce preferentially metabolized fructose. Improved growth of interior spruce cells in mechanically stirred bioreactors occurred when cultured in LP medium with 60 mM fructose as the sole carbon source.
Publication date
PublisherSpringer Link
In
  • In Vitro Cellular & Developmental Biology - Plant 30, no. 1 (January 1994): 58–63.
LanguageEnglish
Peer reviewedYes
IdentifierBF02632121
NRCC-36479
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Record identifier9d1e3a78-ffa9-42c4-9fa4-91155238e5a6
Record created2023-10-25
Record modified2023-10-25
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