PLANTS
PLANT TISSUE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Induction of direct regeneration of shoots from organ cultures.
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Induction of direct regeneration of roots from organ cultures.
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Induction of direct regeneration of stomata from organ cultures.
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Induction of direct regeneration of xilem from organ cultures.
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Detailed explanation-1: -During tissue culture, adventitious roots or shoots can be induced by transferring the callus to medium containing different ratios of auxin and cytokinin. In some cases in nature, de novo organogenesis from detached organs leads directly to the formation of a new plant at a wound site, without production of callus.
Detailed explanation-2: -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.
Detailed explanation-3: -In tissue culture, cytokinins interact with auxin during the formation of plant organs such as roots and stems. For example, in tobacco tissue culture a high ratio of auxin to cytokinin induces root formation, whereas a low ratio of auxin to cytokinin induces shoot formation.