Skip to main content
callus

callus

9.6
A small hard thick part on a flower, for example the stiff bump on an orchid lip
  • noun
  • /ˈkæləs/
  • Specialized
translation icon : callo
  • The weight of callus increased from control (Fig. 5). At 0.2%, less whitish mass was obtained, and the plant showed leaf induction along with swelling from the bottom.
  • callus induction

Examples

  • Excellent (++++): CI callus induction; CP callus proliferation; REFERENCES

    Academic text (2015)
  • Conclusion: Callus formation depends upon the explant used, nature, concentrations of hormones, and culture conditions. Chemical as well as gamma radiation are important sources of mutations.

    Academic text (2015)
  • While all the varieties produced callus and became swollen from their lower portions.

    Academic text (2015)
  • Excellent (++++): CI callus induction; CP callus proliferation; REFERENCES

    Academic text (2015)
  • Cold treatment up to 48 hours showed maximum callus induction response, and further increases in the treatment time did not enhance callus induction, suggesting 48 hours as the optimal interval for low temperature treatment for BG anthers.

    Academic text (2015)
  • Cold treatment up to 48 hours showed maximum callus induction response, and further increases in the treatment time did not enhance callus induction, suggesting 48 hours as the optimal interval for low temperature treatment for BG anthers.

    Academic text (2015)
  • At 0.1% sodium azide concentration, greater callus mass was obtained in V1, V2, and V3, respectively.

    Academic text (2015)
  • In orchid cultivation, a callus forms as a thickening on the lip, which helps in propagation.

  • To grow new orchids, gardeners encourage the formation of a callus on plant cuttings.

  • During tissue culture, plant cells can develop a callus that is essential for successful grafting.

How Thick

thickening
4 4.6
callus
  • Specialized
9.6
protuberance
2 8.6
to ridge
4 6.0

Surface Forms

callus singular
calluses plural

Etymology

Callus (botany) comes from the Latin callus 'hard skin' and names a small hard thick part on a flower; think of the little bump on an orchid's lip that is a firm, callus-like piece helping the flower work with insects.