Construct · 1 fields · 1 citations

abscission: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a single construct in plant biology Nearest construct by meaning·not indexed
abscission1 CONSTRUCTAbscissionSEXTON & ROBERTS · SEPARATION

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Plant biology

A plant deliberately sheds a leaf, flower, or fruit at a set zone

In plant biology, abscission is the active, programmed shedding of an organ (a leaf, flower, fruit, or branch) at a predefined abscission zone, a band of cells at the organ's base that weakens on cue so the organ detaches cleanly and the exposed surface seals over. Sexton and Roberts' 1982 Cell biology of abscission describes how cells in this zone respond to hormonal signals, chiefly the balance of ethylene against auxin, by dissolving the cell walls that hold the organ on. The referent is a controlled separation built into plant development, distinct from dehiscence (a structure splitting open to release contents) in that abscission detaches a whole organ from the plant.[1]

Unit
Whether and when an organ detaches at its abscission zone
Recovery means
Not applicable
Measured by
Tracked by the timing and force of organ separation and by cell-wall breakdown in the abscission zone

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Nearby constructs

dehiscence3 fields · 3 citationsjingle · one word, three constructsbalance4 fields · 5 citationsjingle · one word, four constructsband2 fields · 2 citationsjingle · one word, two constructs

References

  1. Sexton, R., & Roberts, J. A. (1982). Cell biology of abscission. Annual Review of Plant Physiology, 33, 133–162. https://doi.org/10.1146/annurev.pp.33.060182.001025

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