• Title/Summary/Keyword: induced shoot primordium

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Induction of Shoot Primordium in Culture of Garlic (Allium sativum L.) (마늘 배양에 있어서 신초원기 유도)

  • Choi Joo-Soo;Lee Bok-Kyu;Huh Man-Kyu
    • Journal of Life Science
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    • v.16 no.3 s.76
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    • pp.459-463
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    • 2006
  • Cultivated garlic, Allium sativum L. is economically important for leaves and bulbs, which historically were used in Korea for spices and condiments of Korean food as well as medicine crops. This experiment was carried out to investigate the effect of development and differentiation on culture of A. sativum (cv: white 6) by explant position, hormone composition and sucrose concentration in culture media. Culture method was investigated to induce shoot primordium. Culture efficiency was better with lower tissue of foliage leaf in explant position and on the medium with NAA 0.02 + BAP 1.0 mg/l in hormone composition than any other. Precocious shoot and callus were induced from shoot apex. Shoot was efficiently differentiated on 4,000 mg/l sucrose with increasing concentration of BAP. Shoot primordium was also induced with liquid rotary culture by histological observation. Rhizoid was induced from callus tissue cluster on medium with NAA 0.02 + BAP 2.0 mg/l.

Shoot Primordium Culture for Multiplication of Carrot (당근의 다량증식을 위한 순원기 배양)

  • 서호범;이수성
    • Korean Journal of Plant Tissue Culture
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    • v.26 no.2
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    • pp.93-97
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    • 1999
  • Shoot tips with 2 leaf primordia were cultured to induce shoot primordia in MS liquid medium supplemented with several concentrations of BA and hIAA under the conditions of 10,000 lux illuminations for 24 h and of vertical shaking of 2 rpm in carrot. Two F$_1$ hybrids and two male sterility lines were used. Shoot primordia were only induced in the medium supplemented with 2.0 mg/L of BA and 0.2 mg/L of NAA. Genotypic specificity and seasonal effect of donor parents on shoot primordia induction were not observed and average 15-20% of the planted dornes developed to shoot primordia. The induced shoot primordia were successfully propagated by subculture in the same medium. However, they were grown into three different types during multiplication, that is, the type with multiple small shoots on the surface, the type of without any shoot, and the type of callus. Shoot primordia clusters with small shoots on the surface differentiated multiple shoots successfully in 1/2 MS solid medium supplemented with 0.2 to 1.0 mg/L of IAA and 0.2 to 1.0 mg/L of kinetin. New shoot primordia with small shoots were well formed when pieces bigger than 2 mm in diameter of the out layer of the shoot primordia cluster with small shoots were subcultured. No differences of multiplication and shooting ability and chromosomal variation of shoot primordia were observed until the 13th sub-culture.

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