ice-minus

noun

A genetically modified bacterium created from Pseudomona syringae that inhibits the formation of ice crystals, thereby making some crops more frost tolerant.

Meanings

nounice-minus (uncountable)

alternative ice minus

  1. uncountableA genetically modified bacterium created from Pseudomona syringae that inhibits the formation of ice crystals, thereby making some crops more frost tolerant.

    In laboratory experiments, ice-minus conferred frost-tolerance on strawberries on to which it was sprayed.

    2002, Stephen Nottingham, Genescapes: The Ecology of Genetic Engineering, page 19
    2 more examples

    Bees are know to carry the natural version of P. syringae after pollinating strawberry plants, but AGS points out that ice-minus poses no threat to other plants or insects.

    1985 November 14, Christopher Joyce, “Strawberry field will test man-made bacterium”, in New Scientist, volume 108, number 1482, page 18

    For ice-minus, the proposed mechanism was that engineered organisms would displace natural ones, and the hazard was a disruption of ecological processes in which ice formation is critical.

    1997, Paul B. Thompson, Paul L. Thompson, Julie Eckinger, Food Biotechnology in Ethical Perspective, page 106

Origin

Coined by Stephen Lindlow because it lacks the gene he calls "ice" that creates a protein which provides a regular surface for the formation of ice.

Full word history & related roots →
Cite this entry
APA

ice-minus. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/ice-minus

MLA

“ice-minus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ice-minus. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “ice-minus,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/ice-minus.

Source: ice-minus on Wiktionary, CC BY-SA 4.0.