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#habituation

2 public questions tagged with this topic.

Habituation in callus culture refers to:

Normal plant cell proliferation requires exogenous auxin to activate S-phase genes and cytokinin to induce mitotic cyclins. Habituation denotes acquired ability to divide without these supplements due to stable metabolic reprogramming. Prolonged culture selects variants overproducing cytokinins via isopentenyl transferase genes or auxins via YUCCA flavin monooxygenases, or mutations conferring constitutive signaling through type-B response regulators and auxin receptors TIR1. Epigenetic changes in promoter methylation lock these biosynthetic genes in active state, making trait heritable throug

Ref: Gautheret 1955 habituation; Meins & Binns PNAS 1979 hormone autotrophy; Taiz Plant Physiology Ch 21 cytokinin autonomy; NCBI NBK218342 habituation concept review.

Habituation is:

decreased response to repeated stimulus reflects key principle in quiz on animal behavior+pyqs, where evolutionary mechanisms shape genetic variation and adaptation. In this context, decreased response to repeated stimulus aligns with experimental and theoretical evidence from population genetics, behavioral ecology and molecular phylogeny. Textbooks like Campbell Biology, Futuyma Evolution and Hartl Principles illustrate supporting data. Understanding why decreased response to repeated stimulus fits helps integrate natural selection, drift and species concepts essential for NEET, CSIR-NET and

Ref: Alcock, Animal Behavior, Kin Selection and Social Behavior.