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<p><i>Linum usitatissimum</i> L. or commonly referred to as flax showed a spontaneous drying of the upper portion of epicotyl and hypocotyl during the regeneration protocol thereby resulting in disruption of cell communication from the shoot apex region. We aim to explore the role of cotyledons and the shoot apex in the regeneration process of <i>L. usitatissimum.</i> We performed experiments by removing either the cotyledon or/and the shoot apex to determine their individual and combined effects on the regenerative potential of cotyledonary nodes and hypocotyl of intact seedlings. Results indicate that both cotyledons and shoot-apex either singly or together have an inhibitory influence on the shoot regeneration ability of flax. The study also explores the effects of thidiazuron (TDZ), a potent cytokinin-like growth regulator, in the regeneration potential. TDZ treatment enhanced shoot regeneration response. The experiments aim to provide insights into, the primary roles of cotyledons as hormonal mediators during regeneration and the influence of shoot apex on the regeneration of shoots. These findings could significantly contribute in improving the regeneration techniques of flax for agricultural implications.</p>

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Effect of cotyledon and shoot apex removal on shoot regeneration in Linum usitatissimum

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年4月19日

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  • Renu Soni,
  • Gayatri Tripathi

摘要

Linum usitatissimum L. or commonly referred to as flax showed a spontaneous drying of the upper portion of epicotyl and hypocotyl during the regeneration protocol thereby resulting in disruption of cell communication from the shoot apex region. We aim to explore the role of cotyledons and the shoot apex in the regeneration process of L. usitatissimum. We performed experiments by removing either the cotyledon or/and the shoot apex to determine their individual and combined effects on the regenerative potential of cotyledonary nodes and hypocotyl of intact seedlings. Results indicate that both cotyledons and shoot-apex either singly or together have an inhibitory influence on the shoot regeneration ability of flax. The study also explores the effects of thidiazuron (TDZ), a potent cytokinin-like growth regulator, in the regeneration potential. TDZ treatment enhanced shoot regeneration response. The experiments aim to provide insights into, the primary roles of cotyledons as hormonal mediators during regeneration and the influence of shoot apex on the regeneration of shoots. These findings could significantly contribute in improving the regeneration techniques of flax for agricultural implications.