Habituation in Nicotiana bigelovii tissue cultures : Different behaviour of two varieties

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概要

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• The exceptionally high capacity for transformation to autotrophy for hormones (habituation) discovered in Nicotiana bigelovii led us to a comparison of the responses of 2 varieties (quadrivalvis and bigelovii) to different hormone treatments applied to their seeds. Hormones used were: kinetin (0.8, 1.6, 3.2 ppm), 2,4-D (0.1, 0.4 ppm), IAA (2 ppm) and NAA (1, 2, 4 ppm). Callus formation and habituation were scored after transfer on minimal medium (without hormones) 3 months after sowing. Var. quadrivalvis showed a much higher ability to form callus but the callus formed was autonomous in a lower percentage of cases when IAA or kinetin treatment was considered. Analysis of auxin-like substances in leaves of the 2 varieties showed a higher content in N. bigelovii var. quadrivalvis. Data are discussed with particular redard to their relevance to tumorous phenomena in plants.

• 日本植物生理学会の論文

著者

• Tognoni F.

  Institute Of Horticulture The University

• Giorgi L.

  Laboratorio Di Mutagenesi E Differenziamento

• Bennici A.

  Institute of Genetics

• Buiatti M.

  Institute of Horticulture, the University

• Rosellini D.

  Laboratorio di Mutagenesi e Differenziamento

• Buiatti M.

  Institute Of Horticulture The University

関連論文

• Habituation in Nicotiana bigelovii tissue cultures : Different behaviour of two varieties

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