SCIENCE
BOTANY
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Question
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Adventitious organs arising from a callus culture or directly from an explant
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Adventitious organs arising from a Eahy.926 or directly from an explant
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Formation of axillary bud to regenerate whole plants from some types of tissue culture
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Formation of auxin to regenerate whole plants from some types of tissue culture
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Detailed explanation-1: -The process of organogenesis involves two steps: dedifferentiation and redifferentiation. Dedifferentiation results in the formation of callus from the explant tissue with accelerated cell division. Whereas, redifferentiation causes the development of primordia from a group of callus cells.
Detailed explanation-2: -The thirteen factors are: (1) Size of Explant (2) Source of Explant (3) Age of the Explant (4) Seasonal Variation (5) Oxygen Gradient (6) Quality and Intensity of Light (7) Temperature (8) Plant Hormones (9) Culture Medium (10) Agar-Agar (11) pH of the Medium (12) Ploidy Level and (13) Age of Culture.
Detailed explanation-3: -Organogenesis in plant tissue culture involves two distinct phases: dedifferentiation and redifferentiation. Dedifferentiation begins shortly after the isolation of the explant tissues with an acceleration of cell division and a consequent formation of a mass of undifferentiated cells (called callus).
Detailed explanation-4: -Plant regeneration occurs when plants repair or replace damaged structures based on the totipotency and pluripotency of their cells. Tissue culture is one of the most widely used regenerative technologies.